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dhcp/dhcp-4.2.2-CLOEXEC.patch

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4.2.2b1
2011-07-01 12:42:18 +00:00
diff -up dhcp-4.2.2b1/client/clparse.c.cloexec dhcp-4.2.2b1/client/clparse.c
--- dhcp-4.2.2b1/client/clparse.c.cloexec 2011-07-01 14:13:30.973887714 +0200
+++ dhcp-4.2.2b1/client/clparse.c 2011-07-01 14:15:15.021580693 +0200
@@ -246,7 +246,7 @@ 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;
@@ -283,7 +283,7 @@ 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-4.2.2b1/client/dhclient.c.cloexec dhcp-4.2.2b1/client/dhclient.c
--- dhcp-4.2.2b1/client/dhclient.c.cloexec 2011-07-01 14:13:30.970887717 +0200
+++ dhcp-4.2.2b1/client/dhclient.c 2011-07-01 14:16:51.485930388 +0200
@@ -148,11 +148,11 @@ 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)
@@ -506,7 +506,7 @@ 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;
@@ -548,7 +548,7 @@ 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;
@@ -573,7 +573,7 @@ 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);
@@ -2995,7 +2995,7 @@ 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;
@@ -3105,7 +3105,7 @@ write_duid(struct data_string *duid)
return DHCP_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;
@@ -3285,7 +3285,7 @@ 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;
@@ -3772,9 +3772,9 @@ 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 ();
@@ -3791,14 +3791,14 @@ void write_client_pid_file ()
return;
}
- 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) {
close(pfdesc);
log_error ("Can't fdopen %s: %m", path_dhclient_pid);
diff -up dhcp-4.2.2b1/common/bpf.c.cloexec dhcp-4.2.2b1/common/bpf.c
--- dhcp-4.2.2b1/common/bpf.c.cloexec 2011-07-01 14:13:30.976887712 +0200
+++ dhcp-4.2.2b1/common/bpf.c 2011-07-01 14:13:31.030887673 +0200
@@ -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-4.2.2b1/common/discover.c.cloexec dhcp-4.2.2b1/common/discover.c
--- dhcp-4.2.2b1/common/discover.c.cloexec 2011-06-27 18:18:20.000000000 +0200
+++ dhcp-4.2.2b1/common/discover.c 2011-07-01 14:13:31.031887673 +0200
@@ -421,7 +421,7 @@ 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;
@@ -456,7 +456,7 @@ begin_iface_scan(struct iface_conf_list
#ifdef DHCPv6
if (local_family == AF_INET6) {
- 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-4.2.2b1/common/dlpi.c.cloexec dhcp-4.2.2b1/common/dlpi.c
--- dhcp-4.2.2b1/common/dlpi.c.cloexec 2011-07-01 14:13:30.977887712 +0200
+++ dhcp-4.2.2b1/common/dlpi.c 2011-07-01 14:13:31.032887673 +0200
@@ -806,7 +806,7 @@ dlpiopen(const char *ifname) {
}
*dp = '\0';
- return open (devname, O_RDWR, 0);
+ return open (devname, O_RDWR | O_CLOEXEC, 0);
}
/*
diff -up dhcp-4.2.2b1/common/nit.c.cloexec dhcp-4.2.2b1/common/nit.c
--- dhcp-4.2.2b1/common/nit.c.cloexec 2011-07-01 14:13:30.978887712 +0200
+++ dhcp-4.2.2b1/common/nit.c 2011-07-01 14:13:31.033887672 +0200
@@ -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-4.2.2b1/common/resolv.c.cloexec dhcp-4.2.2b1/common/resolv.c
--- dhcp-4.2.2b1/common/resolv.c.cloexec 2009-11-20 02:49:01.000000000 +0100
+++ dhcp-4.2.2b1/common/resolv.c 2011-07-01 14:13:31.033887672 +0200
@@ -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-4.2.2b1/common/upf.c.cloexec dhcp-4.2.2b1/common/upf.c
--- dhcp-4.2.2b1/common/upf.c.cloexec 2011-07-01 14:13:30.979887712 +0200
+++ dhcp-4.2.2b1/common/upf.c 2011-07-01 14:13:31.034887671 +0200
@@ -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-4.2.2b1/dst/dst_api.c.cloexec dhcp-4.2.2b1/dst/dst_api.c
--- dhcp-4.2.2b1/dst/dst_api.c.cloexec 2009-10-29 01:46:48.000000000 +0100
+++ dhcp-4.2.2b1/dst/dst_api.c 2011-07-01 14:13:31.035887670 +0200
@@ -437,7 +437,7 @@ 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",
@@ -494,7 +494,7 @@ 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);
@@ -620,7 +620,7 @@ 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);
@@ -854,7 +854,7 @@ 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-4.2.2b1/dst/prandom.c.cloexec dhcp-4.2.2b1/dst/prandom.c
--- dhcp-4.2.2b1/dst/prandom.c.cloexec 2009-11-20 02:49:01.000000000 +0100
+++ dhcp-4.2.2b1/dst/prandom.c 2011-07-01 14:13:31.035887670 +0200
@@ -269,7 +269,7 @@ 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);
@@ -480,7 +480,7 @@ 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-4.2.2b1/omapip/trace.c.cloexec dhcp-4.2.2b1/omapip/trace.c
--- dhcp-4.2.2b1/omapip/trace.c.cloexec 2010-05-27 02:34:57.000000000 +0200
+++ dhcp-4.2.2b1/omapip/trace.c 2011-07-01 14:13:31.036887669 +0200
@@ -141,10 +141,10 @@ isc_result_t trace_begin (const char *fi
return DHCP_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 | O_TRUNC,
+ traceoutfile = open (filename, O_WRONLY | O_EXCL | O_TRUNC | O_CLOEXEC,
0600);
}
@@ -431,7 +431,7 @@ 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-4.2.2b1/relay/dhcrelay.c.cloexec dhcp-4.2.2b1/relay/dhcrelay.c
--- dhcp-4.2.2b1/relay/dhcrelay.c.cloexec 2011-05-10 15:07:37.000000000 +0200
+++ dhcp-4.2.2b1/relay/dhcrelay.c 2011-07-01 14:18:07.630209767 +0200
@@ -183,11 +183,11 @@ 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)
@@ -540,13 +540,13 @@ main(int argc, char **argv) {
if (no_pid_file == ISC_FALSE) {
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-4.2.2b1/server/confpars.c.cloexec dhcp-4.2.2b1/server/confpars.c
--- dhcp-4.2.2b1/server/confpars.c.cloexec 2010-10-14 00:34:45.000000000 +0200
+++ dhcp-4.2.2b1/server/confpars.c 2011-07-01 14:13:31.039887666 +0200
@@ -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-4.2.2b1/server/db.c.cloexec dhcp-4.2.2b1/server/db.c
--- dhcp-4.2.2b1/server/db.c.cloexec 2010-09-14 00:15:26.000000000 +0200
+++ dhcp-4.2.2b1/server/db.c 2011-07-01 14:13:31.040887665 +0200
@@ -1035,7 +1035,7 @@ 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 ();
@@ -1083,12 +1083,12 @@ 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-4.2.2b1/server/dhcpd.c.cloexec dhcp-4.2.2b1/server/dhcpd.c
--- dhcp-4.2.2b1/server/dhcpd.c.cloexec 2011-04-21 16:08:15.000000000 +0200
+++ dhcp-4.2.2b1/server/dhcpd.c 2011-07-01 14:19:40.354124505 +0200
@@ -270,11 +270,11 @@ 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)
@@ -793,7 +793,7 @@ main(int argc, char **argv) {
*/
if (no_pid_file == ISC_FALSE) {
/*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) {
@@ -812,7 +812,7 @@ main(int argc, char **argv) {
}
/* Write new pid file. */
- i = open(path_dhcpd_pid, O_WRONLY|O_CREAT|O_TRUNC, 0644);
+ i = open(path_dhcpd_pid, O_WRONLY|O_CREAT|O_TRUNC|O_CLOEXEC, 0644);
if (i >= 0) {
sprintf(pbuf, "%d\n", (int) getpid());
IGNORE_RET (write(i, pbuf, strlen(pbuf)));
@@ -840,9 +840,9 @@ 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. */
IGNORE_RET (chdir("/"));
diff -up dhcp-4.2.2b1/server/ldap.c.cloexec dhcp-4.2.2b1/server/ldap.c
--- dhcp-4.2.2b1/server/ldap.c.cloexec 2010-03-25 16:26:58.000000000 +0100
+++ dhcp-4.2.2b1/server/ldap.c 2011-07-01 14:13:31.043887665 +0200
@@ -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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