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dhcp/dhcp-4.1.0-CLOEXEC.patch
David Cantrell 4bf24c8243 - Upgraded to ISC dhcp-4.1.0 
- Had to rename the -T option to -timeout as ISC is now using -T
- Allow package rebuilders to easily enable DHCPv6 support with: rpmbuild
    --with DHCPv6 dhcp.spec Note that Fedora is still using the 'dhcpv6'
    package, but some users may want to experiment with the ISC DHCPv6
    implementation locally.
2009-01-06 23:50:29 +00:00

447 lines
18 KiB
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diff -up dhcp-4.1.0/client/clparse.c.cloexec dhcp-4.1.0/client/clparse.c
--- dhcp-4.1.0/client/clparse.c.cloexec 2009-01-06 11:56:11.000000000 -1000
+++ dhcp-4.1.0/client/clparse.c 2009-01-06 12:04:48.000000000 -1000
@@ -226,7 +226,7 @@ int read_client_conf_file (const char *n
int token;
isc_result_t status;
- if ((file = open (name, O_RDONLY)) < 0)
+ if ((file = open (name, O_RDONLY | O_CLOEXEC)) < 0)
return uerr2isc (errno);
cfile = NULL;
@@ -263,7 +263,7 @@ void read_client_leases ()
/* Open the lease file. If we can't open it, just return -
we can safely trust the server to remember our state. */
- if ((file = open (path_dhclient_db, O_RDONLY)) < 0)
+ if ((file = open (path_dhclient_db, O_RDONLY | O_CLOEXEC)) < 0)
return;
cfile = NULL;
diff -up dhcp-4.1.0/client/dhclient.c.cloexec dhcp-4.1.0/client/dhclient.c
--- dhcp-4.1.0/client/dhclient.c.cloexec 2009-01-06 11:56:10.000000000 -1000
+++ dhcp-4.1.0/client/dhclient.c 2009-01-06 12:04:01.000000000 -1000
@@ -135,11 +135,11 @@ main(int argc, char **argv) {
/* Make sure that file descriptors 0 (stdin), 1, (stdout), and
2 (stderr) are open. To do this, we assume that when we
open a file the lowest available file descriptor is used. */
- fd = open("/dev/null", O_RDWR);
+ fd = open("/dev/null", O_RDWR | O_CLOEXEC);
if (fd == 0)
- fd = open("/dev/null", O_RDWR);
+ fd = open("/dev/null", O_RDWR | O_CLOEXEC);
if (fd == 1)
- fd = open("/dev/null", O_RDWR);
+ fd = open("/dev/null", O_RDWR | O_CLOEXEC);
if (fd == 2)
log_perror = 0; /* No sense logging to /dev/null. */
else if (fd != -1)
@@ -465,7 +465,7 @@ main(int argc, char **argv) {
int e;
oldpid = 0;
- if ((pidfd = fopen(path_dhclient_pid, "r")) != NULL) {
+ if ((pidfd = fopen(path_dhclient_pid, "re")) != NULL) {
e = fscanf(pidfd, "%ld\n", &temp);
oldpid = (pid_t)temp;
@@ -507,7 +507,7 @@ main(int argc, char **argv) {
strncpy(new_path_dhclient_pid, path_dhclient_pid, pfx);
sprintf(new_path_dhclient_pid + pfx, "-%s.pid", ip->name);
- if ((pidfd = fopen(new_path_dhclient_pid, "r")) != NULL) {
+ if ((pidfd = fopen(new_path_dhclient_pid, "re")) != NULL) {
e = fscanf(pidfd, "%ld\n", &temp);
oldpid = (pid_t)temp;
@@ -532,7 +532,7 @@ main(int argc, char **argv) {
int dhc_running = 0;
char procfn[256] = "";
- if ((pidfp = fopen(path_dhclient_pid, "r")) != NULL) {
+ if ((pidfp = fopen(path_dhclient_pid, "re")) != NULL) {
if ((fscanf(pidfp, "%ld", &temp)==1) && ((dhcpid=(pid_t)temp) > 0)) {
snprintf(procfn,256,"/proc/%u",dhcpid);
dhc_running = (access(procfn, F_OK) == 0);
@@ -2908,7 +2908,7 @@ void rewrite_client_leases ()
if (leaseFile != NULL)
fclose (leaseFile);
- leaseFile = fopen (path_dhclient_db, "w");
+ leaseFile = fopen (path_dhclient_db, "we");
if (leaseFile == NULL) {
log_error ("can't create %s: %m", path_dhclient_db);
return;
@@ -3012,7 +3012,7 @@ write_duid(struct data_string *duid)
return ISC_R_INVALIDARG;
if (leaseFile == NULL) { /* XXX? */
- leaseFile = fopen(path_dhclient_db, "w");
+ leaseFile = fopen(path_dhclient_db, "we");
if (leaseFile == NULL) {
log_error("can't create %s: %m", path_dhclient_db);
return ISC_R_IOERROR;
@@ -3192,7 +3192,7 @@ int write_client_lease (client, lease, r
return 1;
if (leaseFile == NULL) { /* XXX */
- leaseFile = fopen (path_dhclient_db, "w");
+ leaseFile = fopen (path_dhclient_db, "we");
if (leaseFile == NULL) {
log_error ("can't create %s: %m", path_dhclient_db);
return 0;
@@ -3638,9 +3638,9 @@ void go_daemon ()
close(2);
/* Reopen them on /dev/null. */
- open("/dev/null", O_RDWR);
- open("/dev/null", O_RDWR);
- open("/dev/null", O_RDWR);
+ open("/dev/null", O_RDWR | O_CLOEXEC);
+ open("/dev/null", O_RDWR | O_CLOEXEC);
+ open("/dev/null", O_RDWR | O_CLOEXEC);
write_client_pid_file ();
@@ -3652,14 +3652,14 @@ void write_client_pid_file ()
FILE *pf;
int pfdesc;
- pfdesc = open (path_dhclient_pid, O_CREAT | O_TRUNC | O_WRONLY, 0644);
+ pfdesc = open (path_dhclient_pid, O_CREAT | O_TRUNC | O_WRONLY | O_CLOEXEC, 0644);
if (pfdesc < 0) {
log_error ("Can't create %s: %m", path_dhclient_pid);
return;
}
- pf = fdopen (pfdesc, "w");
+ pf = fdopen (pfdesc, "we");
if (!pf)
log_error ("Can't fdopen %s: %m", path_dhclient_pid);
else {
diff -up dhcp-4.1.0/common/bpf.c.cloexec dhcp-4.1.0/common/bpf.c
--- dhcp-4.1.0/common/bpf.c.cloexec 2009-01-06 11:56:11.000000000 -1000
+++ dhcp-4.1.0/common/bpf.c 2009-01-06 11:56:11.000000000 -1000
@@ -94,7 +94,7 @@ int if_register_bpf (info)
for (b = 0; 1; b++) {
/* %Audit% 31 bytes max. %2004.06.17,Safe% */
sprintf(filename, BPF_FORMAT, b);
- sock = open (filename, O_RDWR, 0);
+ sock = open (filename, O_RDWR | O_CLOEXEC, 0);
if (sock < 0) {
if (errno == EBUSY) {
continue;
diff -up dhcp-4.1.0/common/discover.c.cloexec dhcp-4.1.0/common/discover.c
--- dhcp-4.1.0/common/discover.c.cloexec 2008-08-29 07:48:57.000000000 -1000
+++ dhcp-4.1.0/common/discover.c 2009-01-06 11:56:11.000000000 -1000
@@ -409,7 +409,7 @@ begin_iface_scan(struct iface_conf_list
int len;
int i;
- ifaces->fp = fopen("/proc/net/dev", "r");
+ ifaces->fp = fopen("/proc/net/dev", "re");
if (ifaces->fp == NULL) {
log_error("Error opening '/proc/net/dev' to list interfaces");
return 0;
@@ -443,7 +443,7 @@ begin_iface_scan(struct iface_conf_list
}
#ifdef DHCPv6
- ifaces->fp6 = fopen("/proc/net/if_inet6", "r");
+ ifaces->fp6 = fopen("/proc/net/if_inet6", "re");
if (ifaces->fp6 == NULL) {
log_error("Error opening '/proc/net/if_inet6' to "
"list IPv6 interfaces; %m");
diff -up dhcp-4.1.0/common/dlpi.c.cloexec dhcp-4.1.0/common/dlpi.c
--- dhcp-4.1.0/common/dlpi.c.cloexec 2009-01-06 11:56:11.000000000 -1000
+++ dhcp-4.1.0/common/dlpi.c 2009-01-06 11:56:11.000000000 -1000
@@ -795,7 +795,7 @@ dlpiopen(const char *ifname) {
}
*dp = '\0';
- return open (devname, O_RDWR, 0);
+ return open (devname, O_RDWR | O_CLOEXEC, 0);
}
/*
diff -up dhcp-4.1.0/common/nit.c.cloexec dhcp-4.1.0/common/nit.c
--- dhcp-4.1.0/common/nit.c.cloexec 2009-01-06 11:56:11.000000000 -1000
+++ dhcp-4.1.0/common/nit.c 2009-01-06 11:56:11.000000000 -1000
@@ -81,7 +81,7 @@ int if_register_nit (info)
struct strioctl sio;
/* Open a NIT device */
- sock = open ("/dev/nit", O_RDWR);
+ sock = open ("/dev/nit", O_RDWR | O_CLOEXEC);
if (sock < 0)
log_fatal ("Can't open NIT device for %s: %m", info -> name);
diff -up dhcp-4.1.0/common/resolv.c.cloexec dhcp-4.1.0/common/resolv.c
--- dhcp-4.1.0/common/resolv.c.cloexec 2008-03-07 10:12:44.000000000 -1000
+++ dhcp-4.1.0/common/resolv.c 2009-01-06 12:05:17.000000000 -1000
@@ -49,7 +49,7 @@ void read_resolv_conf (parse_time)
struct domain_search_list *dp, *dl, *nd;
isc_result_t status;
- if ((file = open (path_resolv_conf, O_RDONLY)) < 0) {
+ if ((file = open (path_resolv_conf, O_RDONLY | O_CLOEXEC)) < 0) {
log_error ("Can't open %s: %m", path_resolv_conf);
return;
}
diff -up dhcp-4.1.0/common/upf.c.cloexec dhcp-4.1.0/common/upf.c
--- dhcp-4.1.0/common/upf.c.cloexec 2009-01-06 11:56:11.000000000 -1000
+++ dhcp-4.1.0/common/upf.c 2009-01-06 11:56:11.000000000 -1000
@@ -77,7 +77,7 @@ int if_register_upf (info)
/* %Audit% Cannot exceed 36 bytes. %2004.06.17,Safe% */
sprintf(filename, "/dev/pf/pfilt%d", b);
- sock = open (filename, O_RDWR, 0);
+ sock = open (filename, O_RDWR | O_CLOEXEC, 0);
if (sock < 0) {
if (errno == EBUSY) {
continue;
diff -up dhcp-4.1.0/dst/dst_api.c.cloexec dhcp-4.1.0/dst/dst_api.c
--- dhcp-4.1.0/dst/dst_api.c.cloexec 2007-11-30 11:51:43.000000000 -1000
+++ dhcp-4.1.0/dst/dst_api.c 2009-01-06 11:56:11.000000000 -1000
@@ -436,7 +436,7 @@ dst_s_write_private_key(const DST_KEY *k
PRIVATE_KEY, PATH_MAX);
/* Do not overwrite an existing file */
- if ((fp = dst_s_fopen(file, "w", 0600)) != NULL) {
+ if ((fp = dst_s_fopen(file, "we", 0600)) != NULL) {
int nn;
if ((nn = fwrite(encoded_block, 1, len, fp)) != len) {
EREPORT(("dst_write_private_key(): Write failure on %s %d != %d errno=%d\n",
@@ -493,7 +493,7 @@ dst_s_read_public_key(const char *in_nam
* flags, proto, alg stored as decimal (or hex numbers FIXME).
* (FIXME: handle parentheses for line continuation.)
*/
- if ((fp = dst_s_fopen(name, "r", 0)) == NULL) {
+ if ((fp = dst_s_fopen(name, "re", 0)) == NULL) {
EREPORT(("dst_read_public_key(): Public Key not found %s\n",
name));
return (NULL);
@@ -615,7 +615,7 @@ dst_s_write_public_key(const DST_KEY *ke
return (0);
}
/* create public key file */
- if ((fp = dst_s_fopen(filename, "w+", 0644)) == NULL) {
+ if ((fp = dst_s_fopen(filename, "w+e", 0644)) == NULL) {
EREPORT(("DST_write_public_key: open of file:%s failed (errno=%d)\n",
filename, errno));
return (0);
@@ -849,7 +849,7 @@ dst_s_read_private_key_file(char *name,
return (0);
}
/* first check if we can find the key file */
- if ((fp = dst_s_fopen(filename, "r", 0)) == NULL) {
+ if ((fp = dst_s_fopen(filename, "re", 0)) == NULL) {
EREPORT(("dst_s_read_private_key_file: Could not open file %s in directory %s\n",
filename, dst_path[0] ? dst_path :
(char *) getcwd(NULL, PATH_MAX - 1)));
diff -up dhcp-4.1.0/dst/prandom.c.cloexec dhcp-4.1.0/dst/prandom.c
--- dhcp-4.1.0/dst/prandom.c.cloexec 2007-11-30 11:51:43.000000000 -1000
+++ dhcp-4.1.0/dst/prandom.c 2009-01-06 11:56:11.000000000 -1000
@@ -267,7 +267,7 @@ get_dev_random(u_char *output, unsigned
s = stat("/dev/random", &st);
if (s == 0 && S_ISCHR(st.st_mode)) {
- if ((fd = open("/dev/random", O_RDONLY | O_NONBLOCK)) != -1) {
+ if ((fd = open("/dev/random", O_RDONLY | O_NONBLOCK | O_CLOEXEC)) != -1) {
if ((n = read(fd, output, size)) < 0)
n = 0;
close(fd);
@@ -478,7 +478,7 @@ digest_file(dst_work *work)
work->file_digest = dst_free_key(work->file_digest);
return (0);
}
- if ((fp = fopen(name, "r")) == NULL)
+ if ((fp = fopen(name, "re")) == NULL)
return (0);
for (no = 0; (i = fread(buf, sizeof(*buf), sizeof(buf), fp)) > 0;
no += i)
diff -up dhcp-4.1.0/minires/res_init.c.cloexec dhcp-4.1.0/minires/res_init.c
--- dhcp-4.1.0/minires/res_init.c.cloexec 2008-02-28 11:21:56.000000000 -1000
+++ dhcp-4.1.0/minires/res_init.c 2009-01-06 11:56:11.000000000 -1000
@@ -233,7 +233,7 @@ minires_vinit(res_state statp, int prein
(line[sizeof(name) - 1] == ' ' || \
line[sizeof(name) - 1] == '\t'))
- if ((fp = fopen(_PATH_RESCONF, "r")) != NULL) {
+ if ((fp = fopen(_PATH_RESCONF, "re")) != NULL) {
/* read the config file */
while (fgets(buf, sizeof(buf), fp) != NULL) {
/* skip comments */
diff -up dhcp-4.1.0/minires/res_query.c.cloexec dhcp-4.1.0/minires/res_query.c
--- dhcp-4.1.0/minires/res_query.c.cloexec 2008-02-28 11:21:56.000000000 -1000
+++ dhcp-4.1.0/minires/res_query.c 2009-01-06 11:56:11.000000000 -1000
@@ -379,7 +379,7 @@ res_hostalias(const res_state statp, con
if (statp->options & RES_NOALIASES)
return (NULL);
file = getenv("HOSTALIASES");
- if (file == NULL || (fp = fopen(file, "r")) == NULL)
+ if (file == NULL || (fp = fopen(file, "re")) == NULL)
return (NULL);
setbuf(fp, NULL);
buf[sizeof(buf) - 1] = '\0';
diff -up dhcp-4.1.0/omapip/trace.c.cloexec dhcp-4.1.0/omapip/trace.c
--- dhcp-4.1.0/omapip/trace.c.cloexec 2007-07-12 20:43:42.000000000 -1000
+++ dhcp-4.1.0/omapip/trace.c 2009-01-06 11:56:11.000000000 -1000
@@ -140,10 +140,10 @@ isc_result_t trace_begin (const char *fi
return ISC_R_INVALIDARG;
}
- traceoutfile = open (filename, O_CREAT | O_WRONLY | O_EXCL, 0600);
+ traceoutfile = open (filename, O_CREAT | O_WRONLY | O_EXCL | O_CLOEXEC, 0600);
if (traceoutfile < 0 && errno == EEXIST) {
log_error ("WARNING: Overwriting trace file \"%s\"", filename);
- traceoutfile = open (filename, O_WRONLY | O_EXCL, 0600);
+ traceoutfile = open (filename, O_WRONLY | O_EXCL | O_CLOEXEC, 0600);
}
if (traceoutfile < 0) {
@@ -429,7 +429,7 @@ void trace_file_replay (const char *file
isc_result_t result;
int len;
- traceinfile = fopen (filename, "r");
+ traceinfile = fopen (filename, "re");
if (!traceinfile) {
log_error ("Can't open tracefile %s: %m", filename);
return;
diff -up dhcp-4.1.0/relay/dhcrelay.c.cloexec dhcp-4.1.0/relay/dhcrelay.c
--- dhcp-4.1.0/relay/dhcrelay.c.cloexec 2008-11-12 13:22:14.000000000 -1000
+++ dhcp-4.1.0/relay/dhcrelay.c 2009-01-06 12:06:23.000000000 -1000
@@ -174,11 +174,11 @@ main(int argc, char **argv) {
/* Make sure that file descriptors 0(stdin), 1,(stdout), and
2(stderr) are open. To do this, we assume that when we
open a file the lowest available file descriptor is used. */
- fd = open("/dev/null", O_RDWR);
+ fd = open("/dev/null", O_RDWR | O_CLOEXEC);
if (fd == 0)
- fd = open("/dev/null", O_RDWR);
+ fd = open("/dev/null", O_RDWR | O_CLOEXEC);
if (fd == 1)
- fd = open("/dev/null", O_RDWR);
+ fd = open("/dev/null", O_RDWR | O_CLOEXEC);
if (fd == 2)
log_perror = 0; /* No sense logging to /dev/null. */
else if (fd != -1)
@@ -511,12 +511,12 @@ main(int argc, char **argv) {
exit(0);
pfdesc = open(path_dhcrelay_pid,
- O_CREAT | O_TRUNC | O_WRONLY, 0644);
+ O_CREAT | O_TRUNC | O_WRONLY | O_CLOEXEC, 0644);
if (pfdesc < 0) {
log_error("Can't create %s: %m", path_dhcrelay_pid);
} else {
- pf = fdopen(pfdesc, "w");
+ pf = fdopen(pfdesc, "we");
if (!pf)
log_error("Can't fdopen %s: %m",
path_dhcrelay_pid);
diff -up dhcp-4.1.0/server/confpars.c.cloexec dhcp-4.1.0/server/confpars.c
--- dhcp-4.1.0/server/confpars.c.cloexec 2009-01-06 11:56:10.000000000 -1000
+++ dhcp-4.1.0/server/confpars.c 2009-01-06 11:56:11.000000000 -1000
@@ -116,7 +116,7 @@ isc_result_t read_conf_file (const char
}
#endif
- if ((file = open (filename, O_RDONLY)) < 0) {
+ if ((file = open (filename, O_RDONLY | O_CLOEXEC)) < 0) {
if (leasep) {
log_error ("Can't open lease database %s: %m --",
path_dhcpd_db);
diff -up dhcp-4.1.0/server/db.c.cloexec dhcp-4.1.0/server/db.c
--- dhcp-4.1.0/server/db.c.cloexec 2008-03-31 03:49:45.000000000 -1000
+++ dhcp-4.1.0/server/db.c 2009-01-06 11:56:11.000000000 -1000
@@ -1021,7 +1021,7 @@ void db_startup (testp)
}
#endif
if (!testp) {
- db_file = fopen (path_dhcpd_db, "a");
+ db_file = fopen (path_dhcpd_db, "ae");
if (!db_file)
log_fatal ("Can't open %s for append.", path_dhcpd_db);
expire_all_pools ();
@@ -1069,12 +1069,12 @@ int new_lease_file ()
path_dhcpd_db, (int)t) >= sizeof newfname)
log_fatal("new_lease_file: lease file path too long");
- db_fd = open (newfname, O_WRONLY | O_TRUNC | O_CREAT, 0664);
+ db_fd = open (newfname, O_WRONLY | O_TRUNC | O_CREAT | O_CLOEXEC, 0664);
if (db_fd < 0) {
log_error ("Can't create new lease file: %m");
return 0;
}
- if ((new_db_file = fdopen(db_fd, "w")) == NULL) {
+ if ((new_db_file = fdopen(db_fd, "we")) == NULL) {
log_error("Can't fdopen new lease file: %m");
close(db_fd);
goto fdfail;
diff -up dhcp-4.1.0/server/dhcpd.c.cloexec dhcp-4.1.0/server/dhcpd.c
--- dhcp-4.1.0/server/dhcpd.c.cloexec 2009-01-06 11:56:09.000000000 -1000
+++ dhcp-4.1.0/server/dhcpd.c 2009-01-06 12:06:49.000000000 -1000
@@ -266,11 +266,11 @@ main(int argc, char **argv) {
/* Make sure that file descriptors 0 (stdin), 1, (stdout), and
2 (stderr) are open. To do this, we assume that when we
open a file the lowest available file descriptor is used. */
- fd = open("/dev/null", O_RDWR);
+ fd = open("/dev/null", O_RDWR | O_CLOEXEC);
if (fd == 0)
- fd = open("/dev/null", O_RDWR);
+ fd = open("/dev/null", O_RDWR | O_CLOEXEC);
if (fd == 1)
- fd = open("/dev/null", O_RDWR);
+ fd = open("/dev/null", O_RDWR | O_CLOEXEC);
if (fd == 2)
log_perror = 0; /* No sense logging to /dev/null. */
else if (fd != -1)
@@ -779,7 +779,7 @@ main(int argc, char **argv) {
#endif /* PARANOIA */
/* Read previous pid file. */
- if ((i = open (path_dhcpd_pid, O_RDONLY)) >= 0) {
+ if ((i = open (path_dhcpd_pid, O_RDONLY | O_CLOEXEC)) >= 0) {
status = read(i, pbuf, (sizeof pbuf) - 1);
close (i);
if (status > 0) {
@@ -797,7 +797,7 @@ main(int argc, char **argv) {
}
/* Write new pid file. */
- if ((i = open(path_dhcpd_pid, O_WRONLY|O_CREAT|O_TRUNC, 0644)) >= 0) {
+ if ((i = open(path_dhcpd_pid, O_WRONLY|O_CREAT|O_TRUNC|O_CLOEXEC, 0644)) >= 0) {
sprintf(pbuf, "%d\n", (int) getpid());
write(i, pbuf, strlen(pbuf));
close(i);
@@ -823,9 +823,9 @@ main(int argc, char **argv) {
close(2);
/* Reopen them on /dev/null. */
- open("/dev/null", O_RDWR);
- open("/dev/null", O_RDWR);
- open("/dev/null", O_RDWR);
+ open("/dev/null", O_RDWR | O_CLOEXEC);
+ open("/dev/null", O_RDWR | O_CLOEXEC);
+ open("/dev/null", O_RDWR | O_CLOEXEC);
log_perror = 0; /* No sense logging to /dev/null. */
chdir("/");
diff -up dhcp-4.1.0/server/ldap.c.cloexec dhcp-4.1.0/server/ldap.c
--- dhcp-4.1.0/server/ldap.c.cloexec 2009-01-06 11:56:09.000000000 -1000
+++ dhcp-4.1.0/server/ldap.c 2009-01-06 11:56:11.000000000 -1000
@@ -685,7 +685,7 @@ ldap_start (void)
if (ldap_debug_file != NULL && ldap_debug_fd == -1)
{
- if ((ldap_debug_fd = open (ldap_debug_file, O_CREAT | O_TRUNC | O_WRONLY,
+ if ((ldap_debug_fd = open (ldap_debug_file, O_CREAT | O_TRUNC | O_WRONLY | O_CLOEXEC,
S_IRUSR | S_IWUSR)) < 0)
log_error ("Error opening debug LDAP log file %s: %s", ldap_debug_file,
strerror (errno));
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