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glibc/glibc-RHEL-119409-1.patch
Frédéric Bérat 808ff574ad stdio: Guarantee ungetc single char pushback with FILE struct buffer (RHEL-119409) 
Resolves: RHEL-119409
2025-10-22 11:55:26 +02:00

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commit 53fcdf5f743aa9b02972eec658e66f96d6a63386
Author: Alejandro Colomar <alx@kernel.org>
Date: Sat Nov 16 16:51:31 2024 +0100
Silence most -Wzero-as-null-pointer-constant diagnostics
Replace 0 by NULL and {0} by {}.
Omit a few cases that aren't so trivial to fix.
Link: <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117059>
Link: <https://software.codidact.com/posts/292718/292759#answer-292759>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Conflicts:
elf/dl-tunables.c
(modified non-existing code downstream)
diff --git a/argp/argp-fmtstream.c b/argp/argp-fmtstream.c
index eb0a886c723d9010..35b5b1d0fec74d78 100644
--- a/argp/argp-fmtstream.c
+++ b/argp/argp-fmtstream.c
@@ -74,7 +74,7 @@ __argp_make_fmtstream (FILE *stream,
if (! fs->buf)
{
free (fs);
- fs = 0;
+ fs = NULL;
}
else
{
diff --git a/argp/argp-help.c b/argp/argp-help.c
index cc43f376d438ddb2..5c41fdcd593accd9 100644
--- a/argp/argp-help.c
+++ b/argp/argp-help.c
@@ -443,7 +443,7 @@ make_hol (const struct argp *argp, struct hol_cluster *cluster)
assert (hol);
hol->num_entries = 0;
- hol->clusters = 0;
+ hol->clusters = NULL;
if (opts)
{
@@ -615,7 +615,7 @@ static char
hol_entry_first_short (const struct hol_entry *entry)
{
return hol_entry_short_iterate (entry, until_short,
- entry->argp->argp_domain, 0);
+ entry->argp->argp_domain, NULL);
}
/* Returns the first valid long option in ENTRY, or NULL if there is none. */
@@ -627,7 +627,7 @@ hol_entry_first_long (const struct hol_entry *entry)
for (opt = entry->opt, num = entry->num; num > 0; opt++, num--)
if (opt->name && ovisible (opt))
return opt->name;
- return 0;
+ return NULL;
}
/* Returns the entry in HOL with the long option name NAME, or NULL if there is
@@ -652,7 +652,7 @@ hol_find_entry (struct hol *hol, const char *name)
entry++;
}
- return 0;
+ return NULL;
}
/* If an entry with the long option NAME occurs in HOL, set it's special
@@ -926,7 +926,7 @@ hol_append (struct hol *hol, struct hol *more)
while (*cl_end)
cl_end = &(*cl_end)->next;
*cl_end = more->clusters;
- more->clusters = 0;
+ more->clusters = NULL;
/* Merge entries. */
if (more->num_entries > 0)
@@ -1299,7 +1299,7 @@ hol_entry_help (struct hol_entry *entry, const struct argp_state *state,
{
const char *tstr = real->doc ? dgettext (state == NULL ? NULL
: state->root_argp->argp_domain,
- real->doc) : 0;
+ real->doc) : NULL;
const char *fstr = filter_doc (tstr, real->key, entry->argp, state);
if (fstr && *fstr)
{
@@ -1339,7 +1339,7 @@ hol_help (struct hol *hol, const struct argp_state *state,
{
unsigned num;
struct hol_entry *entry;
- struct hol_help_state hhstate = { 0, 0, 0 };
+ struct hol_help_state hhstate = { NULL, 0, 0 };
for (entry = hol->entries, num = hol->num_entries; num > 0; entry++, num--)
hol_entry_help (entry, state, stream, &hhstate);
@@ -1351,7 +1351,7 @@ hol_help (struct hol *hol, const struct argp_state *state,
Mandatory or optional arguments to long options are also mandatory or \
optional for any corresponding short options.");
const char *fstr = filter_doc (tstr, ARGP_KEY_HELP_DUP_ARGS_NOTE,
- state ? state->root_argp : 0, state);
+ state ? state->root_argp : NULL, state);
if (fstr && *fstr)
{
__argp_fmtstream_putc (stream, '\n');
@@ -1511,7 +1511,7 @@ argp_args_usage (const struct argp *argp, const struct argp_state *state,
char *our_level = *levels;
int multiple = 0;
const struct argp_child *child = argp->children;
- const char *tdoc = dgettext (argp->argp_domain, argp->args_doc), *nl = 0;
+ const char *tdoc = dgettext (argp->argp_domain, argp->args_doc), *nl = NULL;
const char *fdoc = filter_doc (tdoc, ARGP_KEY_HELP_ARGS_DOC, argp, state);
if (fdoc)
@@ -1573,7 +1573,7 @@ argp_doc (const struct argp *argp, const struct argp_state *state,
{
const char *text;
const char *inp_text;
- void *input = 0;
+ void *input = NULL;
int anything = 0;
size_t inp_text_limit = 0;
const char *doc = dgettext (argp->argp_domain, argp->doc);
@@ -1582,11 +1582,11 @@ argp_doc (const struct argp *argp, const struct argp_state *state,
if (doc)
{
char *vt = strchr (doc, '\v');
- inp_text = post ? (vt ? vt + 1 : 0) : doc;
+ inp_text = post ? (vt ? vt + 1 : NULL) : doc;
inp_text_limit = (!post && vt) ? (vt - doc) : 0;
}
else
- inp_text = 0;
+ inp_text = NULL;
if (argp->help_filter)
/* We have to filter the doc strings. */
@@ -1628,7 +1628,7 @@ argp_doc (const struct argp *argp, const struct argp_state *state,
if (post && argp->help_filter)
/* Now see if we have to output a ARGP_KEY_HELP_EXTRA text. */
{
- text = (*argp->help_filter) (ARGP_KEY_HELP_EXTRA, 0, input);
+ text = (*argp->help_filter) (ARGP_KEY_HELP_EXTRA, NULL, input);
if (text)
{
if (anything || pre_blank)
@@ -1661,7 +1661,7 @@ _help (const struct argp *argp, const struct argp_state *state, FILE *stream,
unsigned flags, char *name)
{
int anything = 0; /* Whether we've output anything. */
- struct hol *hol = 0;
+ struct hol *hol = NULL;
argp_fmtstream_t fs;
if (! stream)
@@ -1684,7 +1684,7 @@ _help (const struct argp *argp, const struct argp_state *state, FILE *stream,
if (flags & (ARGP_HELP_USAGE | ARGP_HELP_SHORT_USAGE | ARGP_HELP_LONG))
{
- hol = argp_hol (argp, 0);
+ hol = argp_hol (argp, NULL);
/* If present, these options always come last. */
hol_set_group (hol, "help", -1);
@@ -1801,7 +1801,7 @@ Try `%s --help' or `%s --usage' for more information.\n"),
void __argp_help (const struct argp *argp, FILE *stream,
unsigned flags, char *name)
{
- _help (argp, 0, stream, flags, name);
+ _help (argp, NULL, stream, flags, name);
}
#ifdef weak_alias
weak_alias (__argp_help, argp_help)
@@ -1843,7 +1843,7 @@ __argp_state_help (const struct argp_state *state, FILE *stream, unsigned flags)
if (state && (state->flags & ARGP_LONG_ONLY))
flags |= ARGP_HELP_LONG_ONLY;
- _help (state ? state->root_argp : 0, state, stream, flags,
+ _help (state ? state->root_argp : NULL, state, stream, flags,
state ? state->name : __argp_short_program_name ());
if (!state || ! (state->flags & ARGP_NO_EXIT))
diff --git a/argp/argp-parse.c b/argp/argp-parse.c
index 9b7b91f65d9be4bd..7a75fa350615725f 100644
--- a/argp/argp-parse.c
+++ b/argp/argp-parse.c
@@ -83,13 +83,13 @@ static volatile int _argp_hang;
static const struct argp_option argp_default_options[] =
{
- {"help", '?', 0, 0, N_("Give this help list"), -1},
- {"usage", OPT_USAGE, 0, 0, N_("Give a short usage message")},
+ {"help", '?', NULL, 0, N_("Give this help list"), -1},
+ {"usage", OPT_USAGE, NULL, 0, N_("Give a short usage message")},
{"program-name",OPT_PROGNAME, N_("NAME"), OPTION_HIDDEN,
N_("Set the program name")},
{"HANG", OPT_HANG, N_("SECS"), OPTION_ARG_OPTIONAL | OPTION_HIDDEN,
N_("Hang for SECS seconds (default 3600)")},
- {0, 0}
+ {NULL, 0}
};
static error_t
@@ -149,8 +149,8 @@ static const struct argp argp_default_argp =
static const struct argp_option argp_version_options[] =
{
- {"version", 'V', 0, 0, N_("Print program version"), -1},
- {0, 0}
+ {"version", 'V', NULL, 0, N_("Print program version"), -1},
+ {NULL, 0}
};
static error_t
@@ -341,7 +341,7 @@ convert_options (const struct argp *argp,
? optional_argument
: required_argument)
: no_argument);
- cvt->long_end->flag = 0;
+ cvt->long_end->flag = NULL;
/* we add a disambiguating code to all the user's
values (which is removed before we actually call
the function to parse the value); this means that
@@ -364,9 +364,9 @@ convert_options (const struct argp *argp,
group->args_processed = 0;
group->parent = parent;
group->parent_index = parent_index;
- group->input = 0;
- group->hook = 0;
- group->child_inputs = 0;
+ group->input = NULL;
+ group->hook = NULL;
+ group->child_inputs = NULL;
if (children)
/* Assign GROUP's CHILD_INPUTS field some space from
@@ -382,7 +382,7 @@ convert_options (const struct argp *argp,
parent = group++;
}
else
- parent = 0;
+ parent = NULL;
if (children)
{
@@ -417,7 +417,7 @@ parser_convert (struct parser *parser, const struct argp *argp, int flags)
parser->argp = argp;
if (argp)
- parser->egroup = convert_options (argp, 0, 0, parser->groups, &cvt);
+ parser->egroup = convert_options (argp, NULL, 0, parser->groups, &cvt);
else
parser->egroup = parser->groups; /* No parsers at all! */
}
@@ -530,7 +530,7 @@ parser_init (struct parser *parser, const struct argp *argp,
makes very simple wrapper argps more convenient). */
group->child_inputs[0] = group->input;
- err = group_parse (group, &parser->state, ARGP_KEY_INIT, 0);
+ err = group_parse (group, &parser->state, ARGP_KEY_INIT, NULL);
}
if (err == EBADKEY)
err = 0; /* Some parser didn't understand. */
@@ -582,11 +582,11 @@ parser_finalize (struct parser *parser,
group < parser->egroup && (!err || err==EBADKEY);
group++)
if (group->args_processed == 0)
- err = group_parse (group, &parser->state, ARGP_KEY_NO_ARGS, 0);
+ err = group_parse (group, &parser->state, ARGP_KEY_NO_ARGS, NULL);
for (group = parser->egroup - 1;
group >= parser->groups && (!err || err==EBADKEY);
group--)
- err = group_parse (group, &parser->state, ARGP_KEY_END, 0);
+ err = group_parse (group, &parser->state, ARGP_KEY_END, NULL);
if (err == EBADKEY)
err = 0; /* Some parser didn't understand. */
@@ -625,7 +625,7 @@ parser_finalize (struct parser *parser,
/* Since we didn't exit, give each parser an error indication. */
for (group = parser->groups; group < parser->egroup; group++)
- group_parse (group, &parser->state, ARGP_KEY_ERROR, 0);
+ group_parse (group, &parser->state, ARGP_KEY_ERROR, NULL);
}
else
/* Notify parsers of success, and propagate back values from parsers. */
@@ -636,14 +636,14 @@ parser_finalize (struct parser *parser,
for (group = parser->egroup - 1
; group >= parser->groups && (!err || err == EBADKEY)
; group--)
- err = group_parse (group, &parser->state, ARGP_KEY_SUCCESS, 0);
+ err = group_parse (group, &parser->state, ARGP_KEY_SUCCESS, NULL);
if (err == EBADKEY)
err = 0; /* Some parser didn't understand. */
}
/* Call parsers once more, to do any final cleanup. Errors are ignored. */
for (group = parser->egroup - 1; group >= parser->groups; group--)
- group_parse (group, &parser->state, ARGP_KEY_FINI, 0);
+ group_parse (group, &parser->state, ARGP_KEY_FINI, NULL);
if (err == EBADKEY)
err = EINVAL;
@@ -682,7 +682,7 @@ parser_parse_arg (struct parser *parser, char *val)
{
parser->state.next--; /* For ARGP_KEY_ARGS, put back the arg. */
key = ARGP_KEY_ARGS;
- err = group_parse (group, &parser->state, key, 0);
+ err = group_parse (group, &parser->state, key, NULL);
}
}
@@ -792,11 +792,11 @@ parser_parse_next (struct parser *parser, int *arg_ebadkey)
parser->opt_data.optopt = KEY_END;
if (parser->state.flags & ARGP_LONG_ONLY)
opt = _getopt_long_only_r (parser->state.argc, parser->state.argv,
- parser->short_opts, parser->long_opts, 0,
+ parser->short_opts, parser->long_opts, NULL,
&parser->opt_data);
else
opt = _getopt_long_r (parser->state.argc, parser->state.argv,
- parser->short_opts, parser->long_opts, 0,
+ parser->short_opts, parser->long_opts, NULL,
&parser->opt_data);
/* And see what getopt did. */
parser->state.next = parser->opt_data.optind;
@@ -893,7 +893,7 @@ __argp_parse (const struct argp *argp, int argc, char **argv, unsigned flags,
child[child_index++].argp = &argp_default_argp;
if (argp_program_version || argp_program_version_hook)
child[child_index++].argp = &argp_version_argp;
- child[child_index].argp = 0;
+ child[child_index].argp = NULL;
argp = &top_argp;
}
@@ -930,7 +930,7 @@ __argp_input (const struct argp *argp, const struct argp_state *state)
return group->input;
}
- return 0;
+ return NULL;
}
#ifdef weak_alias
weak_alias (__argp_input, _argp_input)
diff --git a/catgets/gencat.c b/catgets/gencat.c
index 7110970bd519abfe..51700a47259c8fc8 100644
--- a/catgets/gencat.c
+++ b/catgets/gencat.c
@@ -429,7 +429,7 @@ read_input_file (struct catalog *current, const char *fname)
/* Test whether the identifier was already used. */
runp = current->all_sets;
- while (runp != 0)
+ while (runp != NULL)
if (runp->symbol != NULL
&& strcmp (runp->symbol, symbol) == 0)
break;
diff --git a/debug/backtracesyms.c b/debug/backtracesyms.c
index c1f6322981ad6548..9a8c9e53a6e41859 100644
--- a/debug/backtracesyms.c
+++ b/debug/backtracesyms.c
@@ -82,7 +82,7 @@ __backtrace_symbols (void *const *array, int size)
relative to the file. */
info[cnt].dli_saddr = info[cnt].dli_fbase;
- if (info[cnt].dli_sname == NULL && info[cnt].dli_saddr == 0)
+ if (info[cnt].dli_sname == NULL && info[cnt].dli_saddr == NULL)
last += 1 + sprintf (last, "%s(%s) [%p]",
info[cnt].dli_fname ?: "",
info[cnt].dli_sname ?: "",
diff --git a/elf/dl-find_object.c b/elf/dl-find_object.c
index 0e45f0af32c9e6b4..b3f947aa15c5c57e 100644
--- a/elf/dl-find_object.c
+++ b/elf/dl-find_object.c
@@ -872,6 +872,6 @@ _dl_find_object_freeres (void)
seg = previous;
}
/* Stop searching in shared objects. */
- _dlfo_loaded_mappings[idx] = 0;
+ _dlfo_loaded_mappings[idx] = NULL;
}
}
diff --git a/elf/dl-load.c b/elf/dl-load.c
index 8b0890499d66f67a..6c253a9c352a1d03 100644
--- a/elf/dl-load.c
+++ b/elf/dl-load.c
@@ -1274,7 +1274,7 @@ _dl_map_object_from_fd (const char *name, const char *origname, int fd,
}
/* This check recognizes most separate debuginfo files. */
- if (__glibc_unlikely ((l->l_ld == 0 && type == ET_DYN) || empty_dynamic))
+ if (__glibc_unlikely ((l->l_ld == NULL && type == ET_DYN) || empty_dynamic))
{
errstring = N_("object file has no dynamic section");
goto lose;
@@ -1297,7 +1297,7 @@ _dl_map_object_from_fd (const char *name, const char *origname, int fd,
}
}
- if (l->l_ld != 0)
+ if (l->l_ld != NULL)
l->l_ld = (ElfW(Dyn) *) ((ElfW(Addr)) l->l_ld + l->l_addr);
elf_get_dynamic_info (l, false, false);
diff --git a/elf/dl-load.h b/elf/dl-load.h
index 656ec229bfae307b..ea6d917710161508 100644
--- a/elf/dl-load.h
+++ b/elf/dl-load.h
@@ -88,7 +88,7 @@ static __always_inline void
_dl_postprocess_loadcmd (struct link_map *l, const ElfW(Ehdr) *header,
const struct loadcmd *c)
{
- if (l->l_phdr == 0
+ if (l->l_phdr == NULL
&& c->mapoff <= header->e_phoff
&& ((size_t) (c->mapend - c->mapstart + c->mapoff)
>= header->e_phoff + header->e_phnum * sizeof (ElfW(Phdr))))
diff --git a/elf/dl-lookup.c b/elf/dl-lookup.c
index 7a70f1df2d6cf839..ee70bbfc21bf2824 100644
--- a/elf/dl-lookup.c
+++ b/elf/dl-lookup.c
@@ -824,7 +824,7 @@ _dl_lookup_symbol_x (const char *undef_name, struct link_map *undef_map,
_dl_exception_free (&exception);
}
*ref = NULL;
- return 0;
+ return NULL;
}
int protected = (*ref
diff --git a/elf/dl-minimal-malloc.c b/elf/dl-minimal-malloc.c
index 25d870728d5eb604..69fc19c1b79e7f61 100644
--- a/elf/dl-minimal-malloc.c
+++ b/elf/dl-minimal-malloc.c
@@ -34,7 +34,7 @@ static void *alloc_ptr, *alloc_end, *alloc_last_block;
void *
__minimal_malloc (size_t n)
{
- if (alloc_end == 0)
+ if (alloc_end == NULL)
{
/* Consume any unused space in the last page of our data segment. */
extern int _end attribute_hidden;
@@ -57,7 +57,7 @@ __minimal_malloc (size_t n)
if (__glibc_unlikely (nup == 0 && n != 0))
return NULL;
nup += GLRO(dl_pagesize);
- page = __mmap (0, nup, PROT_READ|PROT_WRITE,
+ page = __mmap (NULL, nup, PROT_READ|PROT_WRITE,
MAP_ANON|MAP_PRIVATE, -1, 0);
if (page == MAP_FAILED)
return NULL;
diff --git a/elf/dl-tunables.c b/elf/dl-tunables.c
index 614ac9c0471c5963..546549065d10c72a 100644
--- a/elf/dl-tunables.c
+++ b/elf/dl-tunables.c
@@ -236,7 +236,7 @@ parse_tunables_string (const char *valstring, struct tunable_toset_t *tunables)
static void
parse_tunables (const char *valstring)
{
- struct tunable_toset_t tunables[tunables_list_size] = { 0 };
+ struct tunable_toset_t tunables[tunables_list_size] = {};
if (parse_tunables_string (valstring, tunables) == -1)
{
_dl_error_printf (
diff --git a/elf/dynamic-link.h b/elf/dynamic-link.h
index 83d834ecaf609082..370b0e872e4a191f 100644
--- a/elf/dynamic-link.h
+++ b/elf/dynamic-link.h
@@ -152,7 +152,7 @@ elf_machine_lazy_rel (struct link_map *map, struct r_scope_elem *scope[],
# define ELF_DYNAMIC_DO_RELR(map) \
do { \
- ElfW(Addr) l_addr = (map)->l_addr, *where = 0; \
+ ElfW(Addr) l_addr = (map)->l_addr, *where = NULL; \
const ElfW(Relr) *r, *end; \
if ((map)->l_info[DT_RELR] == NULL) \
break; \
diff --git a/elf/readlib.c b/elf/readlib.c
index 32e8b8eb2298c9dd..159345699fc3911e 100644
--- a/elf/readlib.c
+++ b/elf/readlib.c
@@ -105,7 +105,7 @@ process_file (const char *real_file_name, const char *file_name,
return 1;
}
- file_contents = mmap (0, statbuf.st_size, PROT_READ, MAP_SHARED,
+ file_contents = mmap (NULL, statbuf.st_size, PROT_READ, MAP_SHARED,
fileno (file), 0);
if (file_contents == MAP_FAILED)
{
diff --git a/elf/tlsdeschtab.h b/elf/tlsdeschtab.h
index 07e109842e582270..0b1b7cedc81c2aac 100644
--- a/elf/tlsdeschtab.h
+++ b/elf/tlsdeschtab.h
@@ -93,7 +93,7 @@ _dl_make_tlsdesc_dynamic (struct link_map *map, size_t ti_offset)
{
ht = htab_create ();
if (! ht)
- return 0;
+ return NULL;
map->l_mach.tlsdesc_table = ht;
}
@@ -101,7 +101,7 @@ _dl_make_tlsdesc_dynamic (struct link_map *map, size_t ti_offset)
test.tlsinfo.ti_offset = ti_offset;
entry = htab_find_slot (ht, &test, 1, hash_tlsdesc, eq_tlsdesc);
if (! entry)
- return 0;
+ return NULL;
if (*entry)
{
@@ -111,7 +111,7 @@ _dl_make_tlsdesc_dynamic (struct link_map *map, size_t ti_offset)
*entry = td = malloc (sizeof (struct tlsdesc_dynamic_arg));
if (! td)
- return 0;
+ return NULL;
/* This may be higher than the map's generation, but it doesn't
matter much. Worst case, we'll have one extra DTV update per
thread. */
diff --git a/hesiod/hesiod.c b/hesiod/hesiod.c
index ee087b0392fb9b72..0354e16ead468b58 100644
--- a/hesiod/hesiod.c
+++ b/hesiod/hesiod.c
@@ -80,7 +80,7 @@ hesiod_init(void **context) {
char *cp;
ctx = malloc(sizeof(struct hesiod_p));
- if (ctx == 0)
+ if (ctx == NULL)
return (-1);
ctx->LHS = NULL;
@@ -247,7 +247,7 @@ parse_config_file(struct hesiod_p *ctx, const char *filename) {
*/
free(ctx->RHS);
free(ctx->LHS);
- ctx->RHS = ctx->LHS = 0;
+ ctx->RHS = ctx->LHS = NULL;
/* Set default query classes. */
ctx->classes[0] = C_IN;
ctx->classes[1] = C_HS;
@@ -316,7 +316,7 @@ parse_config_file(struct hesiod_p *ctx, const char *filename) {
fclose(fp);
free(ctx->RHS);
free(ctx->LHS);
- ctx->RHS = ctx->LHS = 0;
+ ctx->RHS = ctx->LHS = NULL;
return (-1);
}
diff --git a/inet/rcmd.c b/inet/rcmd.c
index dcf4f4ffd119f15c..0abbdc89fe6a2065 100644
--- a/inet/rcmd.c
+++ b/inet/rcmd.c
@@ -179,7 +179,7 @@ rcmd: socket: All ports in use\n"));
else
__fxprintf(NULL, "rcmd: socket: %m\n");
- __sigprocmask (SIG_SETMASK, &omask, 0);
+ __sigprocmask (SIG_SETMASK, &omask, NULL);
freeaddrinfo(res);
return -1;
}
@@ -209,7 +209,7 @@ rcmd: socket: All ports in use\n"));
free (buf);
}
__set_errno (oerrno);
- perror(0);
+ perror(NULL);
ai = ai->ai_next;
getnameinfo(ai->ai_addr, ai->ai_addrlen,
paddr, sizeof(paddr),
@@ -232,11 +232,11 @@ rcmd: socket: All ports in use\n"));
freeaddrinfo(res);
(void)__fxprintf(NULL, "%s: %s\n", *ahost,
__strerror_r(errno, errbuf, sizeof (errbuf)));
- __sigprocmask (SIG_SETMASK, &omask, 0);
+ __sigprocmask (SIG_SETMASK, &omask, NULL);
return -1;
}
lport--;
- if (fd2p == 0) {
+ if (fd2p == NULL) {
__write(s, "", 1);
lport = 0;
} else {
@@ -344,7 +344,7 @@ socket: protocol failure in circuit setup\n")) >= 0)
}
goto bad2;
}
- __sigprocmask (SIG_SETMASK, &omask, 0);
+ __sigprocmask (SIG_SETMASK, &omask, NULL);
freeaddrinfo(res);
return s;
bad2:
@@ -352,7 +352,7 @@ bad2:
(void)__close(*fd2p);
bad:
(void)__close(s);
- __sigprocmask (SIG_SETMASK, &omask, 0);
+ __sigprocmask (SIG_SETMASK, &omask, NULL);
freeaddrinfo(res);
return -1;
}
diff --git a/inet/rexec.c b/inet/rexec.c
index d479753fc2854add..8e8653f30f2499bc 100644
--- a/inet/rexec.c
+++ b/inet/rexec.c
@@ -103,7 +103,7 @@ retry:
perror(res0->ai_canonname);
goto bad;
}
- if (fd2p == 0) {
+ if (fd2p == NULL) {
(void) __write(s, "", 1);
port = 0;
} else {
diff --git a/inet/ruserpass.c b/inet/ruserpass.c
index 75e2a065524aa1d5..903fc966fdee4857 100644
--- a/inet/ruserpass.c
+++ b/inet/ruserpass.c
@@ -157,7 +157,7 @@ next:
case LOGIN:
if (token()) {
- if (*aname == 0) {
+ if (*aname == NULL) {
char *newp;
newp = malloc((unsigned) strlen(tokval) + 1);
if (newp == NULL)
@@ -180,7 +180,7 @@ next:
warnx(_("Remove 'password' line or make file unreadable by others."));
goto bad;
}
- if (token() && *apass == 0) {
+ if (token() && *apass == NULL) {
char *newp;
newp = malloc((unsigned) strlen(tokval) + 1);
if (newp == NULL)
diff --git a/libio/fileops.c b/libio/fileops.c
index 4db4a76f755b1f3b..759d737ec7eb0e38 100644
--- a/libio/fileops.c
+++ b/libio/fileops.c
@@ -220,7 +220,7 @@ _IO_new_file_fopen (FILE *fp, const char *filename, const char *mode,
const char *last_recognized;
if (_IO_file_is_open (fp))
- return 0;
+ return NULL;
switch (*mode)
{
case 'r':
diff --git a/libio/genops.c b/libio/genops.c
index 02292beed9bc3668..c1db57e6b8bc25ef 100644
--- a/libio/genops.c
+++ b/libio/genops.c
@@ -462,8 +462,8 @@ _IO_default_setbuf (FILE *fp, char *p, ssize_t len)
fp->_flags &= ~_IO_UNBUFFERED;
_IO_setb (fp, p, p+len, 0);
}
- fp->_IO_write_base = fp->_IO_write_ptr = fp->_IO_write_end = 0;
- fp->_IO_read_base = fp->_IO_read_ptr = fp->_IO_read_end = 0;
+ fp->_IO_write_base = fp->_IO_write_ptr = fp->_IO_write_end = NULL;
+ fp->_IO_read_base = fp->_IO_read_ptr = fp->_IO_read_end = NULL;
return fp;
}
@@ -944,7 +944,7 @@ _IO_unsave_markers (FILE *fp)
struct _IO_marker *mark = fp->_markers;
if (mark)
{
- fp->_markers = 0;
+ fp->_markers = NULL;
}
if (_IO_have_backup (fp))
diff --git a/libio/iopopen.c b/libio/iopopen.c
index 352513a2914a9d36..6bf187e2d5f0ccfc 100644
--- a/libio/iopopen.c
+++ b/libio/iopopen.c
@@ -106,7 +106,7 @@ spawn_process (posix_spawn_file_actions_t *fa, FILE *fp, const char *command,
}
}
- err = __posix_spawn (&((_IO_proc_file *) fp)->pid, _PATH_BSHELL, fa, 0,
+ err = __posix_spawn (&((_IO_proc_file *) fp)->pid, _PATH_BSHELL, fa, NULL,
(char *const[]){ (char*) "sh", (char*) "-c", (char*) "--",
(char *) command, NULL }, __environ);
if (err != 0)
diff --git a/libio/libioP.h b/libio/libioP.h
index a83a411fdf7d93c9..34bf91fcd89718bc 100644
--- a/libio/libioP.h
+++ b/libio/libioP.h
@@ -915,9 +915,10 @@ extern int _IO_vscanf (const char *, va_list) __THROW;
# else
# define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \
{ _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (FILE *) CHAIN, FD, \
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, \
+ NULL, NULL, (FILE *) CHAIN, FD, \
0, _IO_pos_BAD, 0, 0, { 0 }, &_IO_stdfile_##FD##_lock, _IO_pos_BAD,\
- NULL, WDP, 0 }
+ NULL, WDP, NULL }
# endif
#else
# ifdef _IO_USE_OLD_IO_FILE
diff --git a/libio/wfileops.c b/libio/wfileops.c
index 6de59683587b40b4..e747d3ed73a6c08c 100644
--- a/libio/wfileops.c
+++ b/libio/wfileops.c
@@ -416,7 +416,7 @@ _IO_wfile_overflow (FILE *f, wint_t wch)
|| f->_wide_data->_IO_write_base == NULL)
{
/* Allocate a buffer if needed. */
- if (f->_wide_data->_IO_write_base == 0)
+ if (f->_wide_data->_IO_write_base == NULL)
{
_IO_wdoallocbuf (f);
_IO_free_wbackup_area (f);
diff --git a/libio/wgenops.c b/libio/wgenops.c
index adfb97014ff4efcd..f77a2d22f03b6c75 100644
--- a/libio/wgenops.c
+++ b/libio/wgenops.c
@@ -601,7 +601,7 @@ _IO_unsave_wmarkers (FILE *fp)
struct _IO_marker *mark = fp->_markers;
if (mark)
{
- fp->_markers = 0;
+ fp->_markers = NULL;
}
if (_IO_have_backup (fp))
diff --git a/locale/programs/xmalloc.c b/locale/programs/xmalloc.c
index 4ae46b9003cace0a..38f2bc8a2c9f0d96 100644
--- a/locale/programs/xmalloc.c
+++ b/locale/programs/xmalloc.c
@@ -56,10 +56,10 @@ fixup_null_alloc (size_t n)
{
VOID *p;
- p = 0;
+ p = NULL;
if (n == 0)
p = malloc ((size_t) 1);
- if (p == 0)
+ if (p == NULL)
error (xmalloc_exit_failure, 0, _("memory exhausted"));
return p;
}
@@ -72,7 +72,7 @@ xmalloc (size_t n)
VOID *p;
p = malloc (n);
- if (p == 0)
+ if (p == NULL)
p = fixup_null_alloc (n);
return p;
}
@@ -85,7 +85,7 @@ xcalloc (size_t n, size_t s)
VOID *p;
p = calloc (n, s);
- if (p == 0)
+ if (p == NULL)
p = fixup_null_alloc (n);
return p;
}
@@ -97,10 +97,10 @@ xcalloc (size_t n, size_t s)
VOID *
xrealloc (VOID *p, size_t n)
{
- if (p == 0)
+ if (p == NULL)
return xmalloc (n);
p = realloc (p, n);
- if (p == 0)
+ if (p == NULL)
p = fixup_null_alloc (n);
return p;
}
diff --git a/locale/setlocale.c b/locale/setlocale.c
index 7bd27e5398e7a211..fc5bf5c427c52755 100644
--- a/locale/setlocale.c
+++ b/locale/setlocale.c
@@ -52,7 +52,7 @@ static char *const _nl_current_used[] =
# undef DEFINE_CATEGORY
};
-# define CATEGORY_USED(category) (_nl_current_used[category] != 0)
+# define CATEGORY_USED(category) (_nl_current_used[category] != NULL)
#else
diff --git a/locale/uselocale.c b/locale/uselocale.c
index 0b247a77d5f47f81..a2b7a1a522cbd6f5 100644
--- a/locale/uselocale.c
+++ b/locale/uselocale.c
@@ -54,7 +54,7 @@ __uselocale (locale_t newloc)
extern char _nl_current_##category##_used; \
weak_extern (_nl_current_##category##_used) \
weak_extern (_nl_current_##category) \
- if (&_nl_current_##category##_used != 0) \
+ if (&_nl_current_##category##_used != NULL) \
_nl_current_##category = &locobj->__locales[category]; \
}
# include "categories.def"
diff --git a/malloc/arena.c b/malloc/arena.c
index cfb1ff885450aa78..91a43ee394ac931e 100644
--- a/malloc/arena.c
+++ b/malloc/arena.c
@@ -389,7 +389,7 @@ alloc_new_heap (size_t size, size_t top_pad, size_t pagesize,
else if (size + top_pad <= max_size)
size += top_pad;
else if (size > max_size)
- return 0;
+ return NULL;
else
size = max_size;
size = ALIGN_UP (size, pagesize);
@@ -411,7 +411,7 @@ alloc_new_heap (size_t size, size_t top_pad, size_t pagesize,
}
if (p2 == MAP_FAILED)
{
- p1 = (char *) MMAP (0, max_size << 1, PROT_NONE, mmap_flags);
+ p1 = (char *) MMAP (NULL, max_size << 1, PROT_NONE, mmap_flags);
if (p1 != MAP_FAILED)
{
p2 = (char *) (((uintptr_t) p1 + (max_size - 1))
@@ -427,21 +427,21 @@ alloc_new_heap (size_t size, size_t top_pad, size_t pagesize,
{
/* Try to take the chance that an allocation of only max_size
is already aligned. */
- p2 = (char *) MMAP (0, max_size, PROT_NONE, mmap_flags);
+ p2 = (char *) MMAP (NULL, max_size, PROT_NONE, mmap_flags);
if (p2 == MAP_FAILED)
- return 0;
+ return NULL;
if ((unsigned long) p2 & (max_size - 1))
{
__munmap (p2, max_size);
- return 0;
+ return NULL;
}
}
}
if (__mprotect (p2, size, mtag_mmap_flags | PROT_READ | PROT_WRITE) != 0)
{
__munmap (p2, max_size);
- return 0;
+ return NULL;
}
/* Only considere the actual usable range. */
@@ -644,7 +644,7 @@ _int_new_arena (size_t size)
to deal with the large request via mmap_chunk(). */
h = new_heap (sizeof (*h) + sizeof (*a) + MALLOC_ALIGNMENT, mp_.top_pad);
if (!h)
- return 0;
+ return NULL;
}
a = h->ar_ptr = (mstate) (h + 1);
malloc_init_state (a);
diff --git a/malloc/malloc-check.c b/malloc/malloc-check.c
index da1158b33322fc2a..6ac71df5d5879d0f 100644
--- a/malloc/malloc-check.c
+++ b/malloc/malloc-check.c
@@ -245,7 +245,7 @@ static void *
realloc_check (void *oldmem, size_t bytes)
{
INTERNAL_SIZE_T chnb;
- void *newmem = 0;
+ void *newmem = NULL;
unsigned char *magic_p;
size_t rb;
@@ -254,7 +254,7 @@ realloc_check (void *oldmem, size_t bytes)
__set_errno (ENOMEM);
return NULL;
}
- if (oldmem == 0)
+ if (oldmem == NULL)
return malloc_check (bytes);
if (bytes == 0)
diff --git a/malloc/malloc.c b/malloc/malloc.c
index 9e577ab90010a0f1..09dc60bf74c59945 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -369,7 +369,7 @@
#include "morecore.c"
#define MORECORE (*__glibc_morecore)
-#define MORECORE_FAILURE 0
+#define MORECORE_FAILURE NULL
/* Memory tagging. */
@@ -2418,7 +2418,7 @@ sysmalloc_mmap (INTERNAL_SIZE_T nb, size_t pagesize, int extra_flags, mstate av)
if ((unsigned long) (size) <= (unsigned long) (nb))
return MAP_FAILED;
- char *mm = (char *) MMAP (0, size,
+ char *mm = (char *) MMAP (NULL, size,
mtag_mmap_flags | PROT_READ | PROT_WRITE,
extra_flags);
if (mm == MAP_FAILED)
@@ -2505,7 +2505,7 @@ sysmalloc_mmap_fallback (long int *s, INTERNAL_SIZE_T nb,
if ((unsigned long) (size) <= (unsigned long) (nb))
return MORECORE_FAILURE;
- char *mbrk = (char *) (MMAP (0, size,
+ char *mbrk = (char *) (MMAP (NULL, size,
mtag_mmap_flags | PROT_READ | PROT_WRITE,
extra_flags));
if (mbrk == MAP_FAILED)
@@ -2581,7 +2581,7 @@ sysmalloc (INTERNAL_SIZE_T nb, mstate av)
/* There are no usable arenas and mmap also failed. */
if (av == NULL)
- return 0;
+ return NULL;
/* Record incoming configuration of top */
@@ -2741,7 +2741,7 @@ sysmalloc (INTERNAL_SIZE_T nb, mstate av)
if (brk != (char *) (MORECORE_FAILURE))
{
- if (mp_.sbrk_base == 0)
+ if (mp_.sbrk_base == NULL)
mp_.sbrk_base = brk;
av->system_mem += size;
@@ -2940,7 +2940,7 @@ sysmalloc (INTERNAL_SIZE_T nb, mstate av)
/* catch all failure paths */
__set_errno (ENOMEM);
- return 0;
+ return NULL;
}
@@ -3078,7 +3078,7 @@ mremap_chunk (mchunkptr p, size_t new_size)
MREMAP_MAYMOVE);
if (cp == MAP_FAILED)
- return 0;
+ return NULL;
madvise_thp (cp, new_size);
@@ -3242,7 +3242,7 @@ static void
tcache_init(void)
{
mstate ar_ptr;
- void *victim = 0;
+ void *victim = NULL;
const size_t bytes = sizeof (tcache_perthread_struct);
if (tcache_shutting_down)
@@ -3360,7 +3360,7 @@ __libc_free (void *mem)
mstate ar_ptr;
mchunkptr p; /* chunk corresponding to mem */
- if (mem == 0) /* free(0) has no effect */
+ if (mem == NULL) /* free(0) has no effect */
return;
/* Quickly check that the freed pointer matches the tag for the memory.
@@ -3416,12 +3416,12 @@ __libc_realloc (void *oldmem, size_t bytes)
#if REALLOC_ZERO_BYTES_FREES
if (bytes == 0 && oldmem != NULL)
{
- __libc_free (oldmem); return 0;
+ __libc_free (oldmem); return NULL;
}
#endif
/* realloc of null is supposed to be same as malloc */
- if (oldmem == 0)
+ if (oldmem == NULL)
return __libc_malloc (bytes);
/* Perform a quick check to ensure that the pointer's tag matches the
@@ -3495,8 +3495,8 @@ __libc_realloc (void *oldmem, size_t bytes)
/* Must alloc, copy, free. */
newmem = __libc_malloc (bytes);
- if (newmem == 0)
- return 0; /* propagate failure */
+ if (newmem == NULL)
+ return NULL; /* propagate failure */
memcpy (newmem, oldmem, oldsize - CHUNK_HDR_SZ);
munmap_chunk (oldp);
@@ -3564,7 +3564,7 @@ aligned_alloc (size_t alignment, size_t bytes)
if (!powerof2 (alignment) || alignment == 0)
{
__set_errno (EINVAL);
- return 0;
+ return NULL;
}
void *address = RETURN_ADDRESS (0);
@@ -3590,7 +3590,7 @@ _mid_memalign (size_t alignment, size_t bytes, void *address)
if (alignment > SIZE_MAX / 2 + 1)
{
__set_errno (EINVAL);
- return 0;
+ return NULL;
}
@@ -3687,7 +3687,7 @@ __libc_pvalloc (size_t bytes)
&rounded_bytes)))
{
__set_errno (ENOMEM);
- return 0;
+ return NULL;
}
rounded_bytes = rounded_bytes & -(pagesize - 1);
@@ -3748,7 +3748,7 @@ __libc_calloc (size_t n, size_t elem_size)
else
{
/* No usable arenas. */
- oldtop = 0;
+ oldtop = NULL;
oldtopsize = 0;
}
mem = _int_malloc (av, sz);
@@ -3758,7 +3758,7 @@ __libc_calloc (size_t n, size_t elem_size)
if (!SINGLE_THREAD_P)
{
- if (mem == 0 && av != NULL)
+ if (mem == NULL && av != NULL)
{
LIBC_PROBE (memory_calloc_retry, 1, sz);
av = arena_get_retry (av, sz);
@@ -3770,8 +3770,8 @@ __libc_calloc (size_t n, size_t elem_size)
}
/* Allocation failed even after a retry. */
- if (mem == 0)
- return 0;
+ if (mem == NULL)
+ return NULL;
mchunkptr p = mem2chunk (mem);
@@ -4003,7 +4003,7 @@ _int_malloc (mstate av, size_t bytes)
while (tcache->counts[tc_idx] < mp_.tcache_count
&& (tc_victim = last (bin)) != bin)
{
- if (tc_victim != 0)
+ if (tc_victim != NULL)
{
bck = tc_victim->bk;
set_inuse_bit_at_offset (tc_victim, nb);
@@ -4839,7 +4839,7 @@ static void malloc_consolidate(mstate av)
fb = &fastbin (av, 0);
do {
p = atomic_exchange_acquire (fb, NULL);
- if (p != 0) {
+ if (p != NULL) {
do {
{
if (__glibc_unlikely (misaligned_chunk (p)))
@@ -4898,7 +4898,7 @@ static void malloc_consolidate(mstate av)
av->top = p;
}
- } while ( (p = nextp) != 0);
+ } while ( (p = nextp) != NULL);
}
} while (fb++ != maxfb);
@@ -4973,8 +4973,8 @@ _int_realloc (mstate av, mchunkptr oldp, INTERNAL_SIZE_T oldsize,
else
{
newmem = _int_malloc (av, nb - MALLOC_ALIGN_MASK);
- if (newmem == 0)
- return 0; /* propagate failure */
+ if (newmem == NULL)
+ return NULL; /* propagate failure */
newp = mem2chunk (newmem);
newsize = chunksize (newp);
@@ -5068,8 +5068,8 @@ _int_memalign (mstate av, size_t alignment, size_t bytes)
/* Call malloc with worst case padding to hit alignment. */
m = (char *) (_int_malloc (av, nb + alignment + MINSIZE));
- if (m == 0)
- return 0; /* propagate failure */
+ if (m == NULL)
+ return NULL; /* propagate failure */
p = mem2chunk (m);
@@ -5281,7 +5281,7 @@ int_mallinfo (mstate av, struct mallinfo2 *m)
for (i = 0; i < NFASTBINS; ++i)
{
for (p = fastbin (av, i);
- p != 0;
+ p != NULL;
p = REVEAL_PTR (p->fd))
{
if (__glibc_unlikely (misaligned_chunk (p)))
diff --git a/malloc/obstack.c b/malloc/obstack.c
index 579c693939dc6409..6e8299a73c13836e 100644
--- a/malloc/obstack.c
+++ b/malloc/obstack.c
@@ -107,7 +107,7 @@ int obstack_exit_failure = EXIT_FAILURE;
/* A looong time ago (before 1994, anyway; we're not sure) this global variable
was used by non-GNU-C macros to avoid multiple evaluation. The GNU C
library still exports it because somebody might use it. */
-struct obstack *_obstack_compat = 0;
+struct obstack *_obstack_compat = NULL;
compat_symbol (libc, _obstack_compat, _obstack, GLIBC_2_0);
# endif
# endif
@@ -180,7 +180,7 @@ _obstack_begin (struct obstack *h,
alignment - 1);
h->chunk_limit = chunk->limit
= (char *) chunk + h->chunk_size;
- chunk->prev = 0;
+ chunk->prev = NULL;
/* The initial chunk now contains no empty object. */
h->maybe_empty_object = 0;
h->alloc_failed = 0;
@@ -228,7 +228,7 @@ _obstack_begin_1 (struct obstack *h, int size, int alignment,
alignment - 1);
h->chunk_limit = chunk->limit
= (char *) chunk + h->chunk_size;
- chunk->prev = 0;
+ chunk->prev = NULL;
/* The initial chunk now contains no empty object. */
h->maybe_empty_object = 0;
h->alloc_failed = 0;
@@ -328,12 +328,12 @@ _obstack_allocated_p (struct obstack *h, void *obj)
/* We use >= rather than > since the object cannot be exactly at
the beginning of the chunk but might be an empty object exactly
at the end of an adjacent chunk. */
- while (lp != 0 && ((void *) lp >= obj || (void *) (lp)->limit < obj))
+ while (lp != NULL && ((void *) lp >= obj || (void *) (lp)->limit < obj))
{
plp = lp->prev;
lp = plp;
}
- return lp != 0;
+ return lp != NULL;
}
/* Free objects in obstack H, including OBJ and everything allocate
@@ -351,7 +351,7 @@ __obstack_free (struct obstack *h, void *obj)
/* We use >= because there cannot be an object at the beginning of a chunk.
But there can be an empty object at that address
at the end of another chunk. */
- while (lp != 0 && ((void *) lp >= obj || (void *) (lp)->limit < obj))
+ while (lp != NULL && ((void *) lp >= obj || (void *) (lp)->limit < obj))
{
plp = lp->prev;
CALL_FREEFUN (h, lp);
@@ -366,7 +366,7 @@ __obstack_free (struct obstack *h, void *obj)
h->chunk_limit = lp->limit;
h->chunk = lp;
}
- else if (obj != 0)
+ else if (obj != NULL)
/* obj is not in any of the chunks! */
abort ();
}
@@ -383,7 +383,7 @@ _obstack_memory_used (struct obstack *h)
struct _obstack_chunk *lp;
int nbytes = 0;
- for (lp = h->chunk; lp != 0; lp = lp->prev)
+ for (lp = h->chunk; lp != NULL; lp = lp->prev)
{
nbytes += lp->limit - (char *) lp;
}
diff --git a/malloc/reallocarray.c b/malloc/reallocarray.c
index 2a5f2a446d9653a6..0118f882539c6469 100644
--- a/malloc/reallocarray.c
+++ b/malloc/reallocarray.c
@@ -27,7 +27,7 @@ __libc_reallocarray (void *optr, size_t nmemb, size_t elem_size)
if (__builtin_mul_overflow (nmemb, elem_size, &bytes))
{
__set_errno (ENOMEM);
- return 0;
+ return NULL;
}
return realloc (optr, bytes);
}
diff --git a/misc/getttyent.c b/misc/getttyent.c
index 92d92b026fbf5d0c..0df7c28ce1ca35c7 100644
--- a/misc/getttyent.c
+++ b/misc/getttyent.c
@@ -126,7 +126,7 @@ __getttyent (void)
;
tty.ty_comment = p;
if (*p == 0)
- tty.ty_comment = 0;
+ tty.ty_comment = NULL;
if ((p = strchr (p, '\n')))
*p = '\0';
return (&tty);
diff --git a/misc/sbrk.c b/misc/sbrk.c
index 8578666ed03699a3..06aa02179d937690 100644
--- a/misc/sbrk.c
+++ b/misc/sbrk.c
@@ -56,7 +56,7 @@ __sbrk (intptr_t increment)
#endif
if (update_brk)
- if (__brk (0) < 0) /* Initialize the break. */
+ if (__brk (NULL) < 0) /* Initialize the break. */
return (void *) -1;
if (increment == 0)
diff --git a/nis/nis_server.c b/nis/nis_server.c
index 622204f9b572887c..255b2f85144dbbc9 100644
--- a/nis/nis_server.c
+++ b/nis/nis_server.c
@@ -29,7 +29,7 @@ nis_servstate (const nis_server *serv, const nis_tag *tags,
nis_taglist taglist;
nis_taglist tagres;
- *result = 0;
+ *result = NULL;
tagres.tags.tags_len = 0;
tagres.tags.tags_val = NULL;
taglist.tags.tags_len = numtags;
diff --git a/nptl/pthread_create.c b/nptl/pthread_create.c
index ef3ec3329027ac9f..a6254b1204ccfc80 100644
--- a/nptl/pthread_create.c
+++ b/nptl/pthread_create.c
@@ -239,7 +239,7 @@ static int create_thread (struct pthread *pd, const struct pthread_attr *attr,
stopped since we have to set the scheduling parameters or set the
affinity. */
bool need_setaffinity = (attr != NULL && attr->extension != NULL
- && attr->extension->cpuset != 0);
+ && attr->extension->cpuset != NULL);
if (attr != NULL
&& (__glibc_unlikely (need_setaffinity)
|| __glibc_unlikely ((attr->flags & ATTR_FLAG_NOTINHERITSCHED) != 0)))
diff --git a/nptl_db/fetch-value.c b/nptl_db/fetch-value.c
index bdf1f444d6984431..5d7474b18d0c7be5 100644
--- a/nptl_db/fetch-value.c
+++ b/nptl_db/fetch-value.c
@@ -69,7 +69,7 @@ _td_locate_field (td_thragent_t *ta,
}
}
- if (idx != 0 && DB_DESC_NELEM (desc) != 0
+ if (idx != NULL && DB_DESC_NELEM (desc) != 0
&& idx - (psaddr_t) 0 > DB_DESC_NELEM (desc))
/* This is an internal indicator to callers with nonzero IDX
that the IDX value is too big. */
diff --git a/nptl_db/td_init.c b/nptl_db/td_init.c
index f47b68d92c079307..b431ea63601b22c3 100644
--- a/nptl_db/td_init.c
+++ b/nptl_db/td_init.c
@@ -32,7 +32,7 @@ td_init (void)
bool
__td_ta_rtld_global (td_thragent_t *ta)
{
- if (ta->ta_addr__rtld_global == 0)
+ if (ta->ta_addr__rtld_global == NULL)
{
psaddr_t rtldglobalp;
if (DB_GET_VALUE (rtldglobalp, ta, __nptl_rtld_global, 0) == TD_OK)
diff --git a/nptl_db/td_ta_clear_event.c b/nptl_db/td_ta_clear_event.c
index ebba4e83dc7b3c02..6322d800af5712ed 100644
--- a/nptl_db/td_ta_clear_event.c
+++ b/nptl_db/td_ta_clear_event.c
@@ -25,7 +25,7 @@ td_ta_clear_event (const td_thragent_t *ta_arg, td_thr_events_t *event)
{
td_thragent_t *const ta = (td_thragent_t *) ta_arg;
td_err_e err;
- psaddr_t eventmask = 0;
+ psaddr_t eventmask = NULL;
void *copy = NULL;
LOG ("td_ta_clear_event");
diff --git a/nptl_db/td_ta_event_getmsg.c b/nptl_db/td_ta_event_getmsg.c
index 8598716c741a5dae..d199546f597c2733 100644
--- a/nptl_db/td_ta_event_getmsg.c
+++ b/nptl_db/td_ta_event_getmsg.c
@@ -46,7 +46,7 @@ td_ta_event_getmsg (const td_thragent_t *ta_arg, td_event_msg_t *msg)
if (err != TD_OK)
return err;
- if (thp == 0)
+ if (thp == NULL)
/* Nothing waiting. */
return TD_NOMSG;
@@ -95,9 +95,9 @@ td_ta_event_getmsg (const td_thragent_t *ta_arg, td_event_msg_t *msg)
if (err != TD_OK)
return err;
- if (next != 0)
+ if (next != NULL)
/* Clear the next pointer in the current descriptor. */
- err = DB_PUT_FIELD (ta, thp, pthread, nextevent, 0, 0);
+ err = DB_PUT_FIELD (ta, thp, pthread, nextevent, 0, NULL);
return err;
}
diff --git a/nptl_db/td_ta_map_lwp2thr.c b/nptl_db/td_ta_map_lwp2thr.c
index 1bd1fe9ec7400149..ab16e40119d2b1c5 100644
--- a/nptl_db/td_ta_map_lwp2thr.c
+++ b/nptl_db/td_ta_map_lwp2thr.c
@@ -119,7 +119,7 @@ __td_ta_lookup_th_unique (const td_thragent_t *ta_arg,
if (ps_lgetregs (ta->ph, lwpid, regs) != PS_OK)
return TD_ERR;
terr = _td_fetch_value_local (ta, ta->ta_howto_data.reg, -1,
- 0, regs, &addr);
+ NULL, regs, &addr);
if (terr != TD_OK)
return terr;
@@ -149,7 +149,7 @@ __td_ta_lookup_th_unique (const td_thragent_t *ta_arg,
if (ps_lgetregs (ta->ph, lwpid, regs) != PS_OK)
return TD_ERR;
terr = _td_fetch_value_local (ta, ta->ta_howto_data.reg_thread_area,
- -1, 0, regs, &addr);
+ -1, NULL, regs, &addr);
if (terr != TD_OK)
return terr;
/* In this descriptor the nelem word is overloaded as scale factor. */
@@ -195,12 +195,12 @@ td_ta_map_lwp2thr (const td_thragent_t *ta_arg,
if (err != TD_OK)
return err;
- if (list == 0)
+ if (list == NULL)
{
if (ps_getpid (ta->ph) != lwpid)
return TD_ERR;
th->th_ta_p = ta;
- th->th_unique = 0;
+ th->th_unique = NULL;
return TD_OK;
}
diff --git a/nptl_db/td_ta_set_event.c b/nptl_db/td_ta_set_event.c
index ee674b35fc8390a5..ee3d63e4e6d434f4 100644
--- a/nptl_db/td_ta_set_event.c
+++ b/nptl_db/td_ta_set_event.c
@@ -25,7 +25,7 @@ td_ta_set_event (const td_thragent_t *ta_arg, td_thr_events_t *event)
{
td_thragent_t *const ta = (td_thragent_t *) ta_arg;
td_err_e err;
- psaddr_t eventmask = 0;
+ psaddr_t eventmask = NULL;
void *copy = NULL;
LOG ("td_ta_set_event");
diff --git a/nptl_db/td_ta_thr_iter.c b/nptl_db/td_ta_thr_iter.c
index ce0c06cb3a89e845..cb3d8abb6132e92d 100644
--- a/nptl_db/td_ta_thr_iter.c
+++ b/nptl_db/td_ta_thr_iter.c
@@ -37,19 +37,19 @@ iterate_thread_list (td_thragent_t *ta, td_thr_iter_f *callback,
if (err != TD_OK)
return err;
- if (next == 0 && fake_empty)
+ if (next == NULL && fake_empty)
{
/* __pthread_initialize_minimal has not run. There is just the main
thread to return. We cannot rely on its thread register. They
sometimes contain garbage that would confuse us, left by the
kernel at exec. So if it looks like initialization is incomplete,
we only fake a special descriptor for the initial thread. */
- td_thrhandle_t th = { ta, 0 };
+ td_thrhandle_t th = { ta, NULL };
return callback (&th, cbdata_p) != 0 ? TD_DBERR : TD_OK;
}
/* Cache the offset from struct pthread to its list_t member. */
- err = DB_GET_FIELD_ADDRESS (ofs, ta, 0, pthread, list, 0);
+ err = DB_GET_FIELD_ADDRESS (ofs, ta, NULL, pthread, list, 0);
if (err != TD_OK)
return err;
@@ -66,7 +66,7 @@ iterate_thread_list (td_thragent_t *ta, td_thr_iter_f *callback,
psaddr_t addr, schedpolicy, schedprio;
addr = next - (ofs - (psaddr_t) 0);
- if (next == 0 || addr == 0) /* Sanity check. */
+ if (next == NULL || addr == NULL) /* Sanity check. */
return TD_DBERR;
/* Copy the whole descriptor in once so we can access the several
@@ -117,7 +117,7 @@ td_ta_thr_iter (const td_thragent_t *ta_arg, td_thr_iter_f *callback,
{
td_thragent_t *const ta = (td_thragent_t *) ta_arg;
td_err_e err;
- psaddr_t list = 0;
+ psaddr_t list = NULL;
LOG ("td_ta_thr_iter");
diff --git a/nptl_db/td_ta_tsd_iter.c b/nptl_db/td_ta_tsd_iter.c
index 58d68eb871ea4b2e..592d43ecc29beb3b 100644
--- a/nptl_db/td_ta_tsd_iter.c
+++ b/nptl_db/td_ta_tsd_iter.c
@@ -38,7 +38,7 @@ td_ta_tsd_iter (const td_thragent_t *ta_arg, td_key_iter_f *callback,
return TD_BADTA;
/* This makes sure we have the size information on hand. */
- addr = 0;
+ addr = NULL;
err = _td_locate_field (ta,
ta->ta_var___pthread_keys, SYM_DESC___pthread_keys,
(psaddr_t) 0 + 1, &addr);
diff --git a/nptl_db/td_thr_event_enable.c b/nptl_db/td_thr_event_enable.c
index 48c474c6674fd39b..c630722a88402da9 100644
--- a/nptl_db/td_thr_event_enable.c
+++ b/nptl_db/td_thr_event_enable.c
@@ -24,7 +24,7 @@ td_thr_event_enable (const td_thrhandle_t *th, int onoff)
{
LOG ("td_thr_event_enable");
- if (th->th_unique != 0)
+ if (th->th_unique != NULL)
{
/* Write the new value into the thread data structure. */
td_err_e err = DB_PUT_FIELD (th->th_ta_p, th->th_unique, pthread,
diff --git a/nptl_db/td_thr_event_getmsg.c b/nptl_db/td_thr_event_getmsg.c
index c0db52dd6261221b..aa5f55289138206c 100644
--- a/nptl_db/td_thr_event_getmsg.c
+++ b/nptl_db/td_thr_event_getmsg.c
@@ -74,7 +74,7 @@ td_thr_event_getmsg (const td_thrhandle_t *th, td_event_msg_t *msg)
if (err != TD_OK)
return err;
- while (thp != 0)
+ while (thp != NULL)
{
psaddr_t next;
err = DB_GET_FIELD (next, th->th_ta_p, th->th_unique, pthread,
@@ -97,13 +97,13 @@ td_thr_event_getmsg (const td_thrhandle_t *th, td_event_msg_t *msg)
err = _td_store_value (th->th_ta_p,
th->th_ta_p->ta_var___nptl_last_event, -1,
- 0, prevp, next);
+ NULL, prevp, next);
if (err != TD_OK)
return err;
/* Now clear this thread's own next pointer so it's not dangling
when the thread resumes and then chains on for its next event. */
- return DB_PUT_FIELD (th->th_ta_p, thp, pthread, nextevent, 0, 0);
+ return DB_PUT_FIELD (th->th_ta_p, thp, pthread, nextevent, 0, NULL);
}
err = DB_GET_FIELD_ADDRESS (prevp, th->th_ta_p, thp, pthread,
diff --git a/nptl_db/td_thr_get_info.c b/nptl_db/td_thr_get_info.c
index 84765d7c91d2fa7c..6584a692579b4518 100644
--- a/nptl_db/td_thr_get_info.c
+++ b/nptl_db/td_thr_get_info.c
@@ -31,21 +31,21 @@ td_thr_get_info (const td_thrhandle_t *th, td_thrinfo_t *infop)
LOG ("td_thr_get_info");
- if (th->th_unique == 0)
+ if (th->th_unique == NULL)
{
/* Special case for the main thread before initialization. */
copy = NULL;
- tls = 0;
- cancelhandling = 0;
+ tls = NULL;
+ cancelhandling = NULL;
schedpolicy = SCHED_OTHER;
- schedprio = 0;
- tid = 0;
+ schedprio = NULL;
+ tid = NULL;
/* Ignore errors to obtain the __nptl_initial_report_events
value because GDB no longer uses the events interface, and
other libthread_db consumers hopefully can handle different
libpthread/lds.o load orders. */
- report_events = 0;
+ report_events = NULL;
(void) DB_GET_VALUE (report_events, th->th_ta_p,
__nptl_initial_report_events, 0);
err = TD_OK;
@@ -105,8 +105,8 @@ td_thr_get_info (const td_thrhandle_t *th, td_thrinfo_t *infop)
/* Initialization which are the same in both cases. */
infop->ti_ta_p = th->th_ta_p;
- infop->ti_lid = tid == 0 ? ps_getpid (th->th_ta_p->ph) : (uintptr_t) tid;
- infop->ti_traceme = report_events != 0;
+ infop->ti_lid = tid == NULL ? ps_getpid (th->th_ta_p->ph) : (uintptr_t) tid;
+ infop->ti_traceme = report_events != NULL;
if (copy != NULL)
err = DB_GET_FIELD_LOCAL (infop->ti_startfunc, th->th_ta_p, copy, pthread,
diff --git a/nptl_db/td_thr_getfpregs.c b/nptl_db/td_thr_getfpregs.c
index 81bbcdffb622d9c8..0af1e44331cb62a6 100644
--- a/nptl_db/td_thr_getfpregs.c
+++ b/nptl_db/td_thr_getfpregs.c
@@ -27,7 +27,7 @@ td_thr_getfpregs (const td_thrhandle_t *th, prfpregset_t *regset)
LOG ("td_thr_getfpregs");
- if (th->th_unique == 0)
+ if (th->th_unique == NULL)
/* Special case for the main thread before initialization. */
return ps_lgetfpregs (th->th_ta_p->ph, ps_getpid (th->th_ta_p->ph),
regset) != PS_OK ? TD_ERR : TD_OK;
diff --git a/nptl_db/td_thr_getgregs.c b/nptl_db/td_thr_getgregs.c
index eb075473aa2bf5c8..1dc0ec7063249f55 100644
--- a/nptl_db/td_thr_getgregs.c
+++ b/nptl_db/td_thr_getgregs.c
@@ -27,7 +27,7 @@ td_thr_getgregs (const td_thrhandle_t *th, prgregset_t regset)
LOG ("td_thr_getgregs");
- if (th->th_unique == 0)
+ if (th->th_unique == NULL)
/* Special case for the main thread before initialization. */
return ps_lgetregs (th->th_ta_p->ph, ps_getpid (th->th_ta_p->ph),
regset) != PS_OK ? TD_ERR : TD_OK;
diff --git a/nptl_db/td_thr_setfpregs.c b/nptl_db/td_thr_setfpregs.c
index dae133464c0194ff..11b2fa814f73d21c 100644
--- a/nptl_db/td_thr_setfpregs.c
+++ b/nptl_db/td_thr_setfpregs.c
@@ -27,7 +27,7 @@ td_thr_setfpregs (const td_thrhandle_t *th, const prfpregset_t *fpregs)
LOG ("td_thr_setfpregs");
- if (th->th_unique == 0)
+ if (th->th_unique == NULL)
/* Special case for the main thread before initialization. */
return ps_lsetfpregs (th->th_ta_p->ph, ps_getpid (th->th_ta_p->ph),
fpregs) != PS_OK ? TD_ERR : TD_OK;
diff --git a/nptl_db/td_thr_setgregs.c b/nptl_db/td_thr_setgregs.c
index aa51885fd32565b5..9f6c3a35479c38e0 100644
--- a/nptl_db/td_thr_setgregs.c
+++ b/nptl_db/td_thr_setgregs.c
@@ -27,7 +27,7 @@ td_thr_setgregs (const td_thrhandle_t *th, prgregset_t gregs)
LOG ("td_thr_setgregs");
- if (th->th_unique == 0)
+ if (th->th_unique == NULL)
/* Special case for the main thread before initialization. */
return ps_lsetregs (th->th_ta_p->ph, ps_getpid (th->th_ta_p->ph),
gregs) != PS_OK ? TD_ERR : TD_OK;
diff --git a/nptl_db/td_thr_tlsbase.c b/nptl_db/td_thr_tlsbase.c
index a952eea798004f64..9a3f59aa8044a88d 100644
--- a/nptl_db/td_thr_tlsbase.c
+++ b/nptl_db/td_thr_tlsbase.c
@@ -37,14 +37,14 @@ dtv_slotinfo_list (td_thragent_t *ta,
}
else
{
- if (ta->ta_addr__dl_tls_dtv_slotinfo_list == 0
+ if (ta->ta_addr__dl_tls_dtv_slotinfo_list == NULL
&& td_mod_lookup (ta->ph, NULL, SYM__dl_tls_dtv_slotinfo_list,
&ta->ta_addr__dl_tls_dtv_slotinfo_list) != PS_OK)
return TD_ERR;
err = _td_fetch_value (ta, ta->ta_var__dl_tls_dtv_slotinfo_list,
- SYM_DESC__dl_tls_dtv_slotinfo_list,
- 0, ta->ta_addr__dl_tls_dtv_slotinfo_list, &head);
+ SYM_DESC__dl_tls_dtv_slotinfo_list, NULL,
+ ta->ta_addr__dl_tls_dtv_slotinfo_list, &head);
if (err != TD_OK)
return err;
}
@@ -129,7 +129,7 @@ td_thr_tlsbase (const td_thrhandle_t *th,
return TD_NOTLS;
psaddr_t pd = th->th_unique;
- if (pd == 0)
+ if (pd == NULL)
{
/* This is the fake handle for the main thread before libpthread
initialization. We are using 0 for its th_unique because we can't
@@ -145,7 +145,7 @@ td_thr_tlsbase (const td_thrhandle_t *th,
&main_th);
if (err == 0)
pd = main_th.th_unique;
- if (pd == 0)
+ if (pd == NULL)
return TD_TLSDEFER;
}
diff --git a/nptl_db/td_thr_tsd.c b/nptl_db/td_thr_tsd.c
index 234e894dbb818d4c..19dc2e7749358c5f 100644
--- a/nptl_db/td_thr_tsd.c
+++ b/nptl_db/td_thr_tsd.c
@@ -42,8 +42,8 @@ td_thr_tsd (const td_thrhandle_t *th, const thread_key_t tk, void **data)
return TD_BADKEY;
/* This makes sure we have the size information on hand. */
- err = DB_GET_FIELD_ADDRESS (level2, th->th_ta_p, 0, pthread_key_data_level2,
- data, 1);
+ err = DB_GET_FIELD_ADDRESS (level2, th->th_ta_p, NULL,
+ pthread_key_data_level2, data, 1);
if (err != TD_OK)
return err;
@@ -62,7 +62,7 @@ td_thr_tsd (const td_thrhandle_t *th, const thread_key_t tk, void **data)
return err;
/* Check the pointer to the second level array. */
- if (level1 == 0)
+ if (level1 == NULL)
return TD_NOTSD;
/* Locate the element within the second level array. */
diff --git a/nptl_db/td_thr_validate.c b/nptl_db/td_thr_validate.c
index 0c3afe346f1f2d06..76c4cf547b0f1578 100644
--- a/nptl_db/td_thr_validate.c
+++ b/nptl_db/td_thr_validate.c
@@ -27,7 +27,7 @@ __td_ta_stack_user (td_thragent_t *ta, psaddr_t *plist)
rtld_global, _dl_stack_user, 0);
else
{
- if (ta->ta_addr__dl_stack_user == 0
+ if (ta->ta_addr__dl_stack_user == NULL
&& td_mod_lookup (ta->ph, NULL, SYM__dl_stack_user,
&ta->ta_addr__dl_stack_user) != PS_OK)
return TD_ERR;
@@ -45,7 +45,7 @@ __td_ta_stack_used (td_thragent_t *ta, psaddr_t *plist)
rtld_global, _dl_stack_used, 0);
else
{
- if (ta->ta_addr__dl_stack_used == 0
+ if (ta->ta_addr__dl_stack_used == NULL
&& td_mod_lookup (ta->ph, NULL, SYM__dl_stack_used,
&ta->ta_addr__dl_stack_used) != PS_OK)
return TD_ERR;
@@ -63,12 +63,12 @@ check_thread_list (const td_thrhandle_t *th, psaddr_t head, bool *uninit)
err = DB_GET_FIELD (next, th->th_ta_p, head, list_t, next, 0);
if (err == TD_OK)
{
- if (next == 0)
+ if (next == NULL)
{
*uninit = true;
return TD_NOTHR;
}
- err = DB_GET_FIELD_ADDRESS (ofs, th->th_ta_p, 0, pthread, list, 0);
+ err = DB_GET_FIELD_ADDRESS (ofs, th->th_ta_p, NULL, pthread, list, 0);
}
while (err == TD_OK)
@@ -108,7 +108,7 @@ td_thr_validate (const td_thrhandle_t *th)
if (err == TD_OK)
err = check_thread_list (th, list, &uninit);
- if (err == TD_NOTHR && uninit && th->th_unique == 0)
+ if (err == TD_NOTHR && uninit && th->th_unique == NULL)
/* __pthread_initialize_minimal has not run yet.
There is only the special case thread handle. */
err = TD_OK;
diff --git a/nptl_db/thread_dbP.h b/nptl_db/thread_dbP.h
index 72d55588457a3a74..24960d048e6b7f03 100644
--- a/nptl_db/thread_dbP.h
+++ b/nptl_db/thread_dbP.h
@@ -158,7 +158,7 @@ extern ps_err_e td_mod_lookup (struct ps_prochandle *ps, const char *modname,
/* Store in psaddr_t VAR the address of inferior's symbol NAME. */
#define DB_GET_SYMBOL(var, ta, name) \
- (((ta)->ta_addr_##name == 0 \
+ (((ta)->ta_addr_##name == NULL \
&& td_lookup ((ta)->ph, SYM_##name, &(ta)->ta_addr_##name) != PS_OK) \
? TD_ERR : ((var) = (ta)->ta_addr_##name, TD_OK))
@@ -199,7 +199,7 @@ extern td_err_e _td_locate_field (td_thragent_t *ta,
/* Store in psaddr_t VAR the value of variable NAME[IDX] in the inferior.
A target value smaller than psaddr_t is zero-extended. */
#define DB_GET_VALUE(var, ta, name, idx) \
- (((ta)->ta_addr_##name == 0 \
+ (((ta)->ta_addr_##name == NULL \
&& td_lookup ((ta)->ph, SYM_##name, &(ta)->ta_addr_##name) != PS_OK) \
? TD_ERR \
: _td_fetch_value ((ta), (ta)->ta_var_##name, SYM_DESC_##name, \
@@ -231,7 +231,7 @@ extern td_err_e _td_fetch_value_local (td_thragent_t *ta,
/* Store psaddr_t VALUE in variable NAME[IDX] in the inferior.
A target field smaller than psaddr_t is zero-extended. */
#define DB_PUT_VALUE(ta, name, idx, value) \
- (((ta)->ta_addr_##name == 0 \
+ (((ta)->ta_addr_##name == NULL \
&& td_lookup ((ta)->ph, SYM_##name, &(ta)->ta_addr_##name) != PS_OK) \
? TD_ERR \
: _td_store_value ((ta), (ta)->ta_var_##name, SYM_DESC_##name, \
diff --git a/nss/getaddrinfo.c b/nss/getaddrinfo.c
index 3ccd3905fa0f07c5..78f50954df1cca36 100644
--- a/nss/getaddrinfo.c
+++ b/nss/getaddrinfo.c
@@ -1144,8 +1144,8 @@ gaih_inet (const char *name, const struct gaih_service *service,
struct gaih_addrtuple *addrmem = NULL;
int result = 0;
- struct gaih_result res = {0};
- struct gaih_addrtuple local_at[2] = {0};
+ struct gaih_result res = {};
+ struct gaih_addrtuple local_at[2] = {};
res.at = local_at;
diff --git a/posix/getopt.c b/posix/getopt.c
index e2951f746011eceb..66aaeb3cc46409fa 100644
--- a/posix/getopt.c
+++ b/posix/getopt.c
@@ -729,7 +729,7 @@ _getopt_internal (int argc, char **argv, const char *optstring,
NAME (int argc, char *const *argv, const char *optstring) \
{ \
return _getopt_internal (argc, (char **)argv, optstring, \
- 0, 0, 0, POSIXLY_CORRECT); \
+ NULL, NULL, 0, POSIXLY_CORRECT); \
}
#ifdef _LIBC
diff --git a/posix/regcomp.c b/posix/regcomp.c
index 6595bb3c0d01a9f8..393ab0715ed02e7a 100644
--- a/posix/regcomp.c
+++ b/posix/regcomp.c
@@ -674,7 +674,7 @@ re_comp (const char *s)
{
if (!re_comp_buf.buffer)
return gettext ("No previous regular expression");
- return 0;
+ return NULL;
}
if (re_comp_buf.buffer)
diff --git a/posix/regexec.c b/posix/regexec.c
index 180e3bce40ca4f7c..99f49bed62f8edec 100644
--- a/posix/regexec.c
+++ b/posix/regexec.c
@@ -2277,7 +2277,7 @@ merge_state_with_log (reg_errcode_t *err, re_match_context_t *mctx,
mctx->state_log[cur_idx] = next_state;
mctx->state_log_top = cur_idx;
}
- else if (mctx->state_log[cur_idx] == 0)
+ else if (mctx->state_log[cur_idx] == NULL)
{
mctx->state_log[cur_idx] = next_state;
}
diff --git a/resolv/base64.c b/resolv/base64.c
index 6237257bb0ce468a..11463235c8d5c475 100644
--- a/resolv/base64.c
+++ b/resolv/base64.c
@@ -205,7 +205,7 @@ b64_pton (char const *src, u_char *target, size_t targsize)
break;
pos = strchr(Base64, ch);
- if (pos == 0) /* A non-base64 character. */
+ if (pos == NULL) /* A non-base64 character. */
return (-1);
switch (state) {
diff --git a/resolv/compat-gethnamaddr.c b/resolv/compat-gethnamaddr.c
index 1c630fcb3d63d377..eec68d0b23bb5734 100644
--- a/resolv/compat-gethnamaddr.c
+++ b/resolv/compat-gethnamaddr.c
@@ -804,7 +804,7 @@ _gethtbyname2 (const char *name, int af)
continue;
if (strcasecmp(p->h_name, name) == 0)
break;
- for (cp = p->h_aliases; *cp != 0; cp++)
+ for (cp = p->h_aliases; *cp != NULL; cp++)
if (strcasecmp(*cp, name) == 0)
goto found;
}
diff --git a/resolv/res_debug.c b/resolv/res_debug.c
index dab5283bbf1ab516..0221c322369a2ccd 100644
--- a/resolv/res_debug.c
+++ b/resolv/res_debug.c
@@ -502,7 +502,7 @@ const struct res_sym __p_rcode_syms[] attribute_hidden = {
int
sym_ston(const struct res_sym *syms, const char *name, int *success) {
- for ((void)NULL; syms->name != 0; syms++) {
+ for ((void)NULL; syms->name != NULL; syms++) {
if (strcasecmp (name, syms->name) == 0) {
if (success)
*success = 1;
@@ -518,7 +518,7 @@ const char *
sym_ntos(const struct res_sym *syms, int number, int *success) {
static char unname[20];
- for ((void)NULL; syms->name != 0; syms++) {
+ for ((void)NULL; syms->name != NULL; syms++) {
if (number == syms->number) {
if (success)
*success = 1;
@@ -537,7 +537,7 @@ const char *
sym_ntop(const struct res_sym *syms, int number, int *success) {
static char unname[20];
- for ((void)NULL; syms->name != 0; syms++) {
+ for ((void)NULL; syms->name != NULL; syms++) {
if (number == syms->number) {
if (success)
*success = 1;
diff --git a/resolv/res_hconf.c b/resolv/res_hconf.c
index e1158943a9457467..1737bce2f9d02ad8 100644
--- a/resolv/res_hconf.c
+++ b/resolv/res_hconf.c
@@ -118,12 +118,12 @@ arg_trimdomain_list (const char *fname, int line_num, const char *args)
if (__asprintf (&buf, _("\
%s: line %d: cannot specify more than %d trim domains"),
fname, line_num, TRIMDOMAINS_MAX) < 0)
- return 0;
+ return NULL;
__fxprintf (NULL, "%s", buf);
free (buf);
- return 0;
+ return NULL;
}
_res_hconf.trimdomain[_res_hconf.num_trimdomains++] =
__strndup (start, len);
@@ -139,12 +139,12 @@ arg_trimdomain_list (const char *fname, int line_num, const char *args)
if (__asprintf (&buf, _("\
%s: line %d: list delimiter not followed by domain"),
fname, line_num) < 0)
- return 0;
+ return NULL;
__fxprintf (NULL, "%s", buf);
free (buf);
- return 0;
+ return NULL;
}
default:
break;
@@ -175,12 +175,12 @@ arg_bool (const char *fname, int line_num, const char *args, unsigned flag)
if (__asprintf (&buf,
_("%s: line %d: expected `on' or `off', found `%s'\n"),
fname, line_num, args) < 0)
- return 0;
+ return NULL;
__fxprintf (NULL, "%s", buf);
free (buf);
- return 0;
+ return NULL;
}
return args;
}
@@ -190,7 +190,7 @@ static void
parse_line (const char *fname, int line_num, const char *str)
{
const char *start;
- const struct cmd *c = 0;
+ const struct cmd *c = NULL;
size_t len;
size_t i;
diff --git a/stdio-common/iovfscanf.c b/stdio-common/iovfscanf.c
index 43b5c70c3f6e815c..68d0a325f799e0aa 100644
--- a/stdio-common/iovfscanf.c
+++ b/stdio-common/iovfscanf.c
@@ -29,7 +29,7 @@ attribute_compat_text_section
__IO_vfscanf (FILE *fp, const char *format, va_list ap, int *errp)
{
int rv = __vfscanf_internal (fp, format, ap, 0);
- if (__glibc_unlikely (errp != 0))
+ if (__glibc_unlikely (errp != NULL))
*errp = (rv == -1);
return rv;
}
diff --git a/string/argz-delete.c b/string/argz-delete.c
index e513e46d5869993f..879daa9821281a83 100644
--- a/string/argz-delete.c
+++ b/string/argz-delete.c
@@ -33,7 +33,7 @@ argz_delete (char **argz, size_t *argz_len, char *entry)
if (*argz_len == 0)
{
free (*argz);
- *argz = 0;
+ *argz = NULL;
}
}
}
diff --git a/string/argz-extract.c b/string/argz-extract.c
index e685da57957ea5ba..fd0003965d4c8df7 100644
--- a/string/argz-extract.c
+++ b/string/argz-extract.c
@@ -30,6 +30,6 @@ __argz_extract (const char *argz, size_t len, char **argv)
argz += part_len + 1;
len -= part_len + 1;
}
- *argv = 0;
+ *argv = NULL;
}
weak_alias (__argz_extract, argz_extract)
diff --git a/string/argz-replace.c b/string/argz-replace.c
index fdd9a8e1c94bb928..d2add630ff664ed0 100644
--- a/string/argz-replace.c
+++ b/string/argz-replace.c
@@ -38,7 +38,7 @@ str_append (char **to, size_t *to_len, const char *buf, const size_t buf_len)
else
{
free (*to);
- *to = 0;
+ *to = NULL;
}
}
@@ -53,10 +53,10 @@ __argz_replace (char **argz, size_t *argz_len, const char *str, const char *with
if (str && *str)
{
- char *arg = 0;
+ char *arg = NULL;
char *src = *argz;
size_t src_len = *argz_len;
- char *dst = 0;
+ char *dst = NULL;
size_t dst_len = 0;
int delayed_copy = 1; /* True while we've avoided copying anything. */
size_t str_len = strlen (str), with_len = strlen (with);
@@ -84,7 +84,7 @@ __argz_replace (char **argz, size_t *argz_len, const char *str, const char *with
else
{
str_append (&to, &to_len, from, strlen (from));
- from = 0;
+ from = NULL;
}
}
}
diff --git a/string/argz.h b/string/argz.h
index 49e85a09ec948d7b..b2dd99413225687e 100644
--- a/string/argz.h
+++ b/string/argz.h
@@ -141,7 +141,7 @@ __NTH (__argz_next (const char *__argz, size_t __argz_len,
return __entry >= __argz + __argz_len ? (char *) NULL : (char *) __entry;
}
else
- return __argz_len > 0 ? (char *) __argz : 0;
+ return __argz_len > 0 ? (char *) __argz : NULL;
}
__extern_inline char *
__NTH (argz_next (const char *__argz, size_t __argz_len,
diff --git a/string/envz.c b/string/envz.c
index cb02b4b338cc9118..4f53dcb2e75dc062 100644
--- a/string/envz.c
+++ b/string/envz.c
@@ -50,7 +50,7 @@ envz_entry (const char *envz, size_t envz_len, const char *name)
envz++, envz_len--; /* skip '\0' */
}
- return 0;
+ return NULL;
}
libc_hidden_def (envz_entry)
@@ -67,7 +67,7 @@ envz_get (const char *envz, size_t envz_len, const char *name)
if (*entry)
entry++;
else
- entry = 0; /* A null entry. */
+ entry = NULL; /* A null entry. */
}
return entry;
}
diff --git a/sunrpc/clnt_raw.c b/sunrpc/clnt_raw.c
index 5b9bd482478760ee..79c0964e7bb0e19b 100644
--- a/sunrpc/clnt_raw.c
+++ b/sunrpc/clnt_raw.c
@@ -90,11 +90,11 @@ clntraw_create (u_long prog, u_long vers)
XDR *xdrs;
CLIENT *client;
- if (clp == 0)
+ if (clp == NULL)
{
clp = (struct clntraw_private_s *) calloc (1, sizeof (*clp));
- if (clp == 0)
- return (0);
+ if (clp == NULL)
+ return NULL;
clntraw_private = clp;
}
xdrs = &clp->xdr_stream;
diff --git a/sunrpc/clnt_simp.c b/sunrpc/clnt_simp.c
index fab61d217003e959..ee77af9cbcf223bf 100644
--- a/sunrpc/clnt_simp.c
+++ b/sunrpc/clnt_simp.c
@@ -60,10 +60,10 @@ callrpc (const char *host, u_long prognum, u_long versnum, u_long procnum,
enum clnt_stat clnt_stat;
struct timeval timeout, tottimeout;
- if (crp == 0)
+ if (crp == NULL)
{
crp = (struct callrpc_private_s *) calloc (1, sizeof (*crp));
- if (crp == 0)
+ if (crp == NULL)
return 0;
callrpc_private = crp;
}
diff --git a/sunrpc/key_call.c b/sunrpc/key_call.c
index b0b29e09a7faa86e..c8e414b1df20773c 100644
--- a/sunrpc/key_call.c
+++ b/sunrpc/key_call.c
@@ -542,7 +542,7 @@ key_call (u_long proc, xdrproc_t xdr_arg, char *arg,
else if (proc == KEY_GEN && __key_gendes_LOCAL)
{
des_block *res;
- res = (*__key_gendes_LOCAL) (__geteuid (), 0);
+ res = (*__key_gendes_LOCAL) (__geteuid (), NULL);
*(des_block *) rslt = *res;
return 1;
}
diff --git a/sunrpc/svc_raw.c b/sunrpc/svc_raw.c
index f0176311d5cbd9f5..2879ce6f84a818f3 100644
--- a/sunrpc/svc_raw.c
+++ b/sunrpc/svc_raw.c
@@ -72,10 +72,10 @@ svcraw_create (void)
{
struct svcraw_private_s *srp = svcraw_private;
- if (srp == 0)
+ if (srp == NULL)
{
srp = (struct svcraw_private_s *) calloc (1, sizeof (*srp));
- if (srp == 0)
+ if (srp == NULL)
return NULL;
}
srp->server.xp_sock = 0;
@@ -99,7 +99,7 @@ svcraw_recv (SVCXPRT *xprt, struct rpc_msg *msg)
struct svcraw_private_s *srp = svcraw_private;
XDR *xdrs;
- if (srp == 0)
+ if (srp == NULL)
return FALSE;
xdrs = &srp->xdr_stream;
xdrs->x_op = XDR_DECODE;
@@ -115,7 +115,7 @@ svcraw_reply (SVCXPRT *xprt, struct rpc_msg *msg)
struct svcraw_private_s *srp = svcraw_private;
XDR *xdrs;
- if (srp == 0)
+ if (srp == NULL)
return FALSE;
xdrs = &srp->xdr_stream;
xdrs->x_op = XDR_ENCODE;
@@ -131,7 +131,7 @@ svcraw_getargs (SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr)
{
struct svcraw_private_s *srp = svcraw_private;
- if (srp == 0)
+ if (srp == NULL)
return FALSE;
return (*xdr_args) (&srp->xdr_stream, args_ptr);
}
@@ -142,7 +142,7 @@ svcraw_freeargs (SVCXPRT *xprt, xdrproc_t xdr_args, caddr_t args_ptr)
struct svcraw_private_s *srp = svcraw_private;
XDR *xdrs;
- if (srp == 0)
+ if (srp == NULL)
return FALSE;
xdrs = &srp->xdr_stream;
xdrs->x_op = XDR_FREE;
diff --git a/sunrpc/svc_simple.c b/sunrpc/svc_simple.c
index 2f2595c0ffe14ded..5a6dd1fce644fc68 100644
--- a/sunrpc/svc_simple.c
+++ b/sunrpc/svc_simple.c
@@ -74,7 +74,7 @@ __registerrpc (u_long prognum, u_long versnum, u_long procnum,
buf = NULL;
goto err_out;
}
- if (transp == 0)
+ if (transp == NULL)
{
transp = svcudp_create (RPC_ANYSOCK);
if (transp == NULL)
diff --git a/sunrpc/xdr_mem.c b/sunrpc/xdr_mem.c
index 46a1f6f1903dd961..a5aa93f4378ed93f 100644
--- a/sunrpc/xdr_mem.c
+++ b/sunrpc/xdr_mem.c
@@ -195,7 +195,7 @@ xdrmem_setpos (XDR *xdrs, u_int pos)
static int32_t *
xdrmem_inline (XDR *xdrs, u_int len)
{
- int32_t *buf = 0;
+ int32_t *buf = NULL;
if (xdrs->x_handy >= len)
{
diff --git a/sunrpc/xdr_sizeof.c b/sunrpc/xdr_sizeof.c
index 1592406d6462fe6e..03c23cd42b026556 100644
--- a/sunrpc/xdr_sizeof.c
+++ b/sunrpc/xdr_sizeof.c
@@ -89,7 +89,7 @@ x_inline (XDR *xdrs, u_int len)
free (xdrs->x_private);
if ((xdrs->x_private = (caddr_t) malloc (len)) == NULL)
{
- xdrs->x_base = 0;
+ xdrs->x_base = NULL;
return NULL;
}
xdrs->x_base = (void *) (long) len;
@@ -109,7 +109,7 @@ static void
x_destroy (XDR *xdrs)
{
xdrs->x_handy = 0;
- xdrs->x_base = 0;
+ xdrs->x_base = NULL;
if (xdrs->x_private)
{
free (xdrs->x_private);
diff --git a/sunrpc/xdr_stdio.c b/sunrpc/xdr_stdio.c
index 0c2cbb78ded8a229..204ed599ae2a2f33 100644
--- a/sunrpc/xdr_stdio.c
+++ b/sunrpc/xdr_stdio.c
@@ -89,7 +89,7 @@ xdrstdio_create (XDR *xdrs, FILE *file, enum xdr_op op)
xdrs->x_ops = (struct xdr_ops *) &xdrstdio_ops;
xdrs->x_private = (caddr_t) file;
xdrs->x_handy = 0;
- xdrs->x_base = 0;
+ xdrs->x_base = NULL;
}
/*
diff --git a/support/blob_repeat.c b/support/blob_repeat.c
index 693956f436cac916..19c9aaf4446296ef 100644
--- a/support/blob_repeat.c
+++ b/support/blob_repeat.c
@@ -92,7 +92,7 @@ allocate_malloc (size_t total_size, const void *element, size_t element_size,
{
void *buffer = malloc (total_size);
if (buffer == NULL)
- return (struct support_blob_repeat) { 0 };
+ return (struct support_blob_repeat) {};
fill (buffer, element, element_size, count);
return (struct support_blob_repeat)
{
@@ -136,7 +136,7 @@ allocate_big (size_t total_size, const void *element, size_t element_size,
if (stride_size == 0)
{
errno = EOVERFLOW;
- return (struct support_blob_repeat) { 0 };
+ return (struct support_blob_repeat) {};
}
/* Ensure that the stride size is at least maximum_small_size. This
@@ -154,7 +154,7 @@ allocate_big (size_t total_size, const void *element, size_t element_size,
void *target = mmap (NULL, total_size, PROT_NONE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
if (target == MAP_FAILED)
- return (struct support_blob_repeat) { 0 };
+ return (struct support_blob_repeat) {};
/* Create the backing file for the repeated mapping. Call mkstemp
directly to remove the resources backing the temporary file
@@ -191,7 +191,7 @@ allocate_big (size_t total_size, const void *element, size_t element_size,
xmunmap (target, total_size);
xclose (fd);
errno = saved_errno;
- return (struct support_blob_repeat) { 0 };
+ return (struct support_blob_repeat) {};
}
if (ptr != target)
FAIL_EXIT1 ("mapping of %zu bytes moved from %p to %p",
@@ -235,7 +235,7 @@ allocate_big (size_t total_size, const void *element, size_t element_size,
xmunmap (target, total_size);
xclose (fd);
errno = saved_errno;
- return (struct support_blob_repeat) { 0 };
+ return (struct support_blob_repeat) {};
}
if (ptr != current)
FAIL_EXIT1 ("MAP_PRIVATE mapping of %zu bytes moved from %p to %p",
@@ -263,7 +263,7 @@ repeat_allocate (const void *element, size_t element_size,
if (__builtin_mul_overflow (element_size, count, &total_size))
{
errno = EOVERFLOW;
- return (struct support_blob_repeat) { 0 };
+ return (struct support_blob_repeat) {};
}
if (total_size <= maximum_small_size)
return allocate_malloc (total_size, element, element_size, count);
@@ -297,5 +297,5 @@ support_blob_repeat_free (struct support_blob_repeat *blob)
xmunmap (blob->start, blob->size);
errno = saved_errno;
}
- *blob = (struct support_blob_repeat) { 0 };
+ *blob = (struct support_blob_repeat) {};
}
diff --git a/support/shell-container.c b/support/shell-container.c
index ca833791d5f39289..86f43ab23fb40d03 100644
--- a/support/shell-container.c
+++ b/support/shell-container.c
@@ -119,7 +119,7 @@ copy_func (char **argv)
goto out;
}
- if (support_copy_file_range (sfd, 0, dfd, 0, st.st_size, 0) != st.st_size)
+ if (support_copy_file_range (sfd, NULL, dfd, NULL, st.st_size, 0) != st.st_size)
{
fprintf (stderr, "cp: cannot copy file %s to %s: %s\n",
sname, dname, strerror (errno));
@@ -145,7 +145,7 @@ exit_func (char **argv)
{
int exit_val = 0;
- if (argv[0] != 0)
+ if (argv[0] != NULL)
exit_val = atoi (argv[0]) & 0xff;
exit (exit_val);
return 0;
diff --git a/support/support_openpty.c b/support/support_openpty.c
index fbf9f71e738e0d38..1d154a9d0ae59529 100644
--- a/support/support_openpty.c
+++ b/support/support_openpty.c
@@ -57,7 +57,7 @@ support_openpty (int *a_outer, int *a_inner, char **a_name,
const struct winsize *winp)
{
int outer = -1, inner = -1;
- char *namebuf = 0;
+ char *namebuf = NULL;
outer = posix_openpt (O_RDWR | O_NOCTTY);
if (outer == -1)
diff --git a/support/support_set_vma_name_supported.c b/support/support_set_vma_name_supported.c
index 2de066fbe8390e4f..99350663456b3f5d 100644
--- a/support/support_set_vma_name_supported.c
+++ b/support/support_set_vma_name_supported.c
@@ -32,7 +32,7 @@ support_set_vma_name_supported (void)
if (size == -1)
FAIL_EXIT1 ("sysconf (_SC_PAGESIZE): %m\n");
- void *vma = xmmap (0,
+ void *vma = xmmap (NULL,
size,
PROT_NONE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE,
diff --git a/support/support_stack_alloc.c b/support/support_stack_alloc.c
index edf3dbfc21020094..346a46aa2a60cfe9 100644
--- a/support/support_stack_alloc.c
+++ b/support/support_stack_alloc.c
@@ -58,7 +58,7 @@ support_stack_alloc (size_t size)
/* Use MAP_NORESERVE so that RAM will not be wasted on the guard
bands; touch all the pages of the actual stack before returning,
so we know they are allocated. */
- void *alloc_base = xmmap (0,
+ void *alloc_base = xmmap (NULL,
alloc_size,
PROT_NONE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE|MAP_STACK,
diff --git a/support/test-container.c b/support/test-container.c
index 1696d676fd101d42..2813b0ddf572fc48 100644
--- a/support/test-container.c
+++ b/support/test-container.c
@@ -440,7 +440,7 @@ copy_one_file (const char *sname, const char *dname)
if (dfd < 0)
FAIL_EXIT1 ("unable to open %s for writing\n", dname);
- xcopy_file_range (sfd, 0, dfd, 0, st.st_size, 0);
+ xcopy_file_range (sfd, NULL, dfd, NULL, st.st_size, 0);
xclose (sfd);
xclose (dfd);
diff --git a/support/xsigstack.c b/support/xsigstack.c
index 415e65976cc2e911..59512a2148eddf2d 100644
--- a/support/xsigstack.c
+++ b/support/xsigstack.c
@@ -64,7 +64,7 @@ xfree_sigstack (void *stack)
{
struct sigstack_desc *desc = stack;
- if (sigaltstack (&desc->old_stack, 0))
+ if (sigaltstack (&desc->old_stack, NULL))
FAIL_EXIT1 ("sigaltstack (restore old stack: sp=%p, size=%zu, flags=%u): "
"%m\n", desc->old_stack.ss_sp, desc->old_stack.ss_size,
desc->old_stack.ss_flags);
diff --git a/sysdeps/posix/system.c b/sysdeps/posix/system.c
index 01e8bc45215bb289..be3270428092b11b 100644
--- a/sysdeps/posix/system.c
+++ b/sysdeps/posix/system.c
@@ -144,7 +144,7 @@ do_system (const char *line)
__posix_spawnattr_setflags (&spawn_attr,
POSIX_SPAWN_SETSIGDEF | POSIX_SPAWN_SETSIGMASK);
- ret = __posix_spawn (&pid, SHELL_PATH, 0, &spawn_attr,
+ ret = __posix_spawn (&pid, SHELL_PATH, NULL, &spawn_attr,
(char *const[]){ (char *) SHELL_NAME,
(char *) "-c",
(char *) "--",
diff --git a/sysdeps/unix/sysv/linux/brk.c b/sysdeps/unix/sysv/linux/brk.c
index a0be43e4f9915297..dbdb8ddd7da32552 100644
--- a/sysdeps/unix/sysv/linux/brk.c
+++ b/sysdeps/unix/sysv/linux/brk.c
@@ -22,7 +22,7 @@
#include <brk_call.h>
/* This must be initialized data because commons can't have aliases. */
-void *__curbrk = 0;
+void *__curbrk = NULL;
#if HAVE_INTERNAL_BRK_ADDR_SYMBOL
/* Old braindamage in GCC's crtstuff.c requires this symbol in an attempt
diff --git a/sysdeps/unix/sysv/linux/dl-early_allocate.c b/sysdeps/unix/sysv/linux/dl-early_allocate.c
index 4d98076ab398cb54..ce5c6b55ffddf3c8 100644
--- a/sysdeps/unix/sysv/linux/dl-early_allocate.c
+++ b/sysdeps/unix/sysv/linux/dl-early_allocate.c
@@ -51,7 +51,7 @@ _dl_early_allocate (size_t size)
{
/* If brk has not been invoked, there is no need to update
__curbrk. The first call to brk will take care of that. */
- void *previous = __brk_call (0);
+ void *previous = __brk_call (NULL);
result = __brk_call (previous + size);
if (result == previous)
result = NULL;
diff --git a/sysdeps/unix/sysv/linux/dl-sysdep.c b/sysdeps/unix/sysv/linux/dl-sysdep.c
index a8ec2d7c18cc423e..1a7779a1841b3357 100644
--- a/sysdeps/unix/sysv/linux/dl-sysdep.c
+++ b/sysdeps/unix/sysv/linux/dl-sysdep.c
@@ -113,7 +113,7 @@ _dl_sysdep_start (void **start_argptr,
/* Initialize DSO sorting algorithm after tunables. */
_dl_sort_maps_init ();
- __brk (0); /* Initialize the break. */
+ __brk (NULL); /* Initialize the break. */
#ifdef DL_PLATFORM_INIT
DL_PLATFORM_INIT;
diff --git a/sysdeps/unix/sysv/linux/gettimeofday.c b/sysdeps/unix/sysv/linux/gettimeofday.c
index 7ab147c6143a63cd..15be44b3777d4c21 100644
--- a/sysdeps/unix/sysv/linux/gettimeofday.c
+++ b/sysdeps/unix/sysv/linux/gettimeofday.c
@@ -31,7 +31,7 @@
static int
__gettimeofday_syscall (struct timeval *restrict tv, void *restrict tz)
{
- if (__glibc_unlikely (tz != 0))
+ if (__glibc_unlikely (tz != NULL))
memset (tz, 0, sizeof *tz);
return INLINE_SYSCALL_CALL (gettimeofday, tv, tz);
}
@@ -47,7 +47,7 @@ libc_ifunc (__gettimeofday,
int
__gettimeofday (struct timeval *restrict tv, void *restrict tz)
{
- if (__glibc_unlikely (tz != 0))
+ if (__glibc_unlikely (tz != NULL))
memset (tz, 0, sizeof *tz);
return INLINE_VSYSCALL (gettimeofday, 2, tv, tz);
diff --git a/sysdeps/unix/sysv/linux/settimeofday.c b/sysdeps/unix/sysv/linux/settimeofday.c
index 4235dc83e6626ee6..4fa1d660153f7d88 100644
--- a/sysdeps/unix/sysv/linux/settimeofday.c
+++ b/sysdeps/unix/sysv/linux/settimeofday.c
@@ -26,9 +26,9 @@ int
__settimeofday64 (const struct __timeval64 *tv, const struct timezone *tz)
{
/* Backwards compatibility for setting the UTC offset. */
- if (__glibc_unlikely (tz != 0))
+ if (__glibc_unlikely (tz != NULL))
{
- if (tv != 0)
+ if (tv != NULL)
{
__set_errno (EINVAL);
return -1;
diff --git a/sysdeps/unix/sysv/linux/sigwait.c b/sysdeps/unix/sysv/linux/sigwait.c
index 37de8db0dcf403a1..f0dff83dab12fc06 100644
--- a/sysdeps/unix/sysv/linux/sigwait.c
+++ b/sysdeps/unix/sysv/linux/sigwait.c
@@ -25,7 +25,7 @@ __sigwait (const sigset_t *set, int *sig)
siginfo_t si;
int ret;
do
- ret = __sigtimedwait (set, &si, 0);
+ ret = __sigtimedwait (set, &si, NULL);
/* Applications do not expect sigwait to return with EINTR, and the
error code is not specified by POSIX. */
while (ret < 0 && errno == EINTR);
diff --git a/sysdeps/unix/sysv/linux/sigwaitinfo.c b/sysdeps/unix/sysv/linux/sigwaitinfo.c
index dba25bdc3b62e6f3..1d48b11b57e26895 100644
--- a/sysdeps/unix/sysv/linux/sigwaitinfo.c
+++ b/sysdeps/unix/sysv/linux/sigwaitinfo.c
@@ -22,7 +22,7 @@
int
__sigwaitinfo (const sigset_t *set, siginfo_t *info)
{
- return __sigtimedwait (set, info, 0);
+ return __sigtimedwait (set, info, NULL);
}
libc_hidden_def (__sigwaitinfo)
diff --git a/sysdeps/unix/sysv/linux/spawni.c b/sysdeps/unix/sysv/linux/spawni.c
index f57e92815eaf3c7b..fa3494898956f4be 100644
--- a/sysdeps/unix/sysv/linux/spawni.c
+++ b/sysdeps/unix/sysv/linux/spawni.c
@@ -115,7 +115,7 @@ __spawni_child (void *arguments)
memset (&sa, '\0', sizeof (sa));
sigset_t hset;
- __sigprocmask (SIG_BLOCK, 0, &hset);
+ __sigprocmask (SIG_BLOCK, NULL, &hset);
for (int sig = 1; sig < _NSIG; ++sig)
{
if ((attr->__flags & POSIX_SPAWN_SETSIGDEF)
@@ -129,7 +129,7 @@ __spawni_child (void *arguments)
sa.sa_handler = SIG_IGN;
else
{
- __libc_sigaction (sig, 0, &sa);
+ __libc_sigaction (sig, NULL, &sa);
if (sa.sa_handler == SIG_IGN || sa.sa_handler == SIG_DFL)
continue;
sa.sa_handler = SIG_DFL;
@@ -138,7 +138,7 @@ __spawni_child (void *arguments)
else
continue;
- __libc_sigaction (sig, &sa, 0);
+ __libc_sigaction (sig, &sa, NULL);
}
#ifdef _POSIX_PRIORITY_SCHEDULING
@@ -172,7 +172,7 @@ __spawni_child (void *arguments)
goto fail;
/* Execute the file actions. */
- if (file_actions != 0)
+ if (file_actions != NULL)
{
int cnt;
struct rlimit64 fdlimit;
diff --git a/sysdeps/x86/nptl/bits/struct_mutex.h b/sysdeps/x86/nptl/bits/struct_mutex.h
index b6bb9aa34af2db8a..7a1b8a14b621d085 100644
--- a/sysdeps/x86/nptl/bits/struct_mutex.h
+++ b/sysdeps/x86/nptl/bits/struct_mutex.h
@@ -54,7 +54,7 @@ struct __pthread_mutex_s
#ifdef __x86_64__
# define __PTHREAD_MUTEX_INITIALIZER(__kind) \
- 0, 0, 0, 0, __kind, 0, 0, { 0, 0 }
+ 0, 0, 0, 0, __kind, 0, 0, { NULL, NULL }
#else
# define __PTHREAD_MUTEX_INITIALIZER(__kind) \
0, 0, 0, __kind, 0, { { 0, 0 } }
diff --git a/timezone/zic.c b/timezone/zic.c
index 2875b5544cc97864..b41c0d1cdc86e8b9 100644
--- a/timezone/zic.c
+++ b/timezone/zic.c
@@ -1452,7 +1452,7 @@ inzsub(char **fields, int nfields, bool iscont)
z.z_filename = filename;
z.z_linenum = linenum;
z.z_stdoff = gethms(fields[i_stdoff], _("invalid UT offset"));
- if ((cp = strchr(fields[i_format], '%')) != 0) {
+ if ((cp = strchr(fields[i_format], '%')) != NULL) {
if ((*++cp != 's' && *cp != 'z') || strchr(cp, '%')
|| strchr(fields[i_format], '/')) {
error(_("invalid abbreviation format"));
@@ -1755,9 +1755,9 @@ rulesub(struct rule *rp, const char *loyearp, const char *hiyearp,
rp->r_wday = lp->l_value;
rp->r_dayofmonth = len_months[1][rp->r_month];
} else {
- if ((ep = strchr(dp, '<')) != 0)
+ if ((ep = strchr(dp, '<')) != NULL)
rp->r_dycode = DC_DOWLEQ;
- else if ((ep = strchr(dp, '>')) != 0)
+ else if ((ep = strchr(dp, '>')) != NULL)
rp->r_dycode = DC_DOWGEQ;
else {
ep = dp;
diff --git a/wctype/wctrans.c b/wctype/wctrans.c
index 9444ed08d81e1ce5..4c484c01b5b1d0b7 100644
--- a/wctype/wctrans.c
+++ b/wctype/wctrans.c
@@ -39,7 +39,7 @@ __wctrans (const char *property)
}
if (names[0] == '\0')
- return 0;
+ return NULL;
i = _NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_MAP_OFFSET) + cnt;
return (wctrans_t) _NL_CURRENT_DATA (LC_CTYPE)->values[i].string;
diff --git a/wctype/wctrans_l.c b/wctype/wctrans_l.c
index 96fde935ffb579f0..1a34168b3f87c81a 100644
--- a/wctype/wctrans_l.c
+++ b/wctype/wctrans_l.c
@@ -39,7 +39,7 @@ __wctrans_l (const char *property, locale_t locale)
}
if (names[0] == '\0')
- return 0;
+ return NULL;
i = locale->__locales[LC_CTYPE]->values[_NL_ITEM_INDEX (_NL_CTYPE_MAP_OFFSET)].word + cnt;
return (wctrans_t) locale->__locales[LC_CTYPE]->values[i].string;
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