glibc/glibc-rh1971664-10.patch

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commit eeac390eecf7de24a110dc84e77e1190f42c5305
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Thu Jun 10 14:31:57 2021 +0530
iconvconfig: Use common gconv module parsing function
Drop local copy of gconv file parsing and use the one in
gconv_parseconfdir.h instead. Now there is a single implementation of
configuration file parsing.
Reviewed-by: DJ Delorie <dj@redhat.com>
diff --git a/iconv/iconvconfig.c b/iconv/iconvconfig.c
index 2f9d5f45ad3a8159..01ecf6f67d55dbbf 100644
--- a/iconv/iconvconfig.c
+++ b/iconv/iconvconfig.c
@@ -18,7 +18,6 @@
#include <argp.h>
#include <assert.h>
-#include <dirent.h>
#include <error.h>
#include <errno.h>
#include <fcntl.h>
@@ -34,10 +33,10 @@
#include <string.h>
#include <unistd.h>
#include <sys/cdefs.h>
-#include <sys/types.h>
#include <sys/uio.h>
#include "iconvconfig.h"
+#include <gconv_parseconfdir.h>
/* Get libc version number. */
#include "../version.h"
@@ -568,7 +567,9 @@ new_module (const char *fromname, size_t fromlen, const char *toname,
/* Add new module. */
static void
-add_module (char *rp, const char *directory)
+add_module (char *rp, const char *directory,
+ size_t dirlen __attribute__ ((__unused__)),
+ int modcount __attribute__ ((__unused__)))
{
/* We expect now
1. `from' name
@@ -646,131 +647,28 @@ add_module (char *rp, const char *directory)
cost, need_ext);
}
-/* Read a gconv-modules configuration file. */
-static bool
-handle_file (const char *dir, const char *infile)
-{
- FILE *fp;
- char *line = NULL;
- size_t linelen = 0;
-
- fp = fopen (infile, "r");
- if (fp == NULL)
- return false;
-
- /* No threads present. */
- __fsetlocking (fp, FSETLOCKING_BYCALLER);
-
- while (!feof_unlocked (fp))
- {
- char *rp, *endp, *word;
- ssize_t n = __getdelim (&line, &linelen, '\n', fp);
-
- if (n < 0)
- /* An error occurred. */
- break;
-
- rp = line;
- /* Terminate the line (excluding comments or newline) with a NUL
- byte to simplify the following code. */
- endp = strchr (rp, '#');
- if (endp != NULL)
- *endp = '\0';
- else
- if (rp[n - 1] == '\n')
- rp[n - 1] = '\0';
-
- while (isspace (*rp))
- ++rp;
-
- /* If this is an empty line go on with the next one. */
- if (rp == endp)
- continue;
-
- word = rp;
- while (*rp != '\0' && !isspace (*rp))
- ++rp;
-
- if (rp - word == sizeof ("alias") - 1
- && memcmp (word, "alias", sizeof ("alias") - 1) == 0)
- add_alias (rp);
- else if (rp - word == sizeof ("module") - 1
- && memcmp (word, "module", sizeof ("module") - 1) == 0)
- add_module (rp, dir);
- /* else */
- /* Otherwise ignore the line. */
- }
-
- free (line);
-
- fclose (fp);
-
- return true;
-}
-
/* Read config files and add the data for this directory to cache. */
static int
handle_dir (const char *dir)
{
- char *cp;
size_t dirlen = strlen (dir);
bool found = false;
+ /* Add the prefix before sending it off to the parser. */
+ char *fulldir = xmalloc (prefix_len + dirlen + 2);
+ char *cp = mempcpy (mempcpy (fulldir, prefix, prefix_len), dir, dirlen);
+
if (dir[dirlen - 1] != '/')
{
- char *newp = (char *) xmalloc (dirlen + 2);
- dir = memcpy (newp, dir, dirlen);
- newp[dirlen++] = '/';
- newp[dirlen] = '\0';
+ *cp++ = '/';
+ *cp = '\0';
+ dirlen++;
}
- /* First, look for a gconv-modules file. */
- char *buf = malloc (prefix_len + dirlen + sizeof "gconv-modules.d");
- if (buf == NULL)
- goto out;
-
- cp = buf;
- if (dir[0] == '/')
- cp = mempcpy (cp, prefix, prefix_len);
- cp = mempcpy (cp, dir, dirlen);
- cp = stpcpy (cp, "gconv-modules");
-
- found |= handle_file (dir, buf);
-
- /* Next, see if there is a gconv-modules.d directory containing configuration
- files and if it is non-empty. */
- cp[0] = '.';
- cp[1] = 'd';
- cp[2] = '\0';
-
- DIR *confdir = opendir (buf);
- if (confdir != NULL)
- {
- struct dirent *ent;
- while ((ent = readdir (confdir)) != NULL)
- {
- if (ent->d_type != DT_REG)
- continue;
-
- size_t len = strlen (ent->d_name);
- const char *suffix = ".conf";
-
- if (len > strlen (suffix)
- && strcmp (ent->d_name + len - strlen (suffix), suffix) == 0)
- {
- char *conf;
- if (asprintf (&conf, "%s/%s", buf, ent->d_name) < 0)
- continue;
- found |= handle_file (dir, conf);
- free (conf);
- }
- }
- closedir (confdir);
- }
+ found = gconv_parseconfdir (fulldir, dirlen + prefix_len);
- free (buf);
+ free (fulldir);
-out:
if (!found)
{
error (0, errno, "failed to open gconv configuration files in `%s'",