diff -up dhcp-4.3.3b1/client/clparse.c.cloexec dhcp-4.3.3b1/client/clparse.c
--- dhcp-4.3.3b1/client/clparse.c.cloexec 2015-08-10 10:46:20.264755543 +0200
+++ dhcp-4.3.3b1/client/clparse.c 2015-08-10 10:46:20.274755510 +0200
@@ -247,7 +247,7 @@ 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;
@@ -323,7 +323,7 @@ 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-4.3.3b1/client/dhclient.c.cloexec dhcp-4.3.3b1/client/dhclient.c
--- dhcp-4.3.3b1/client/dhclient.c.cloexec 2015-08-10 10:46:20.260755556 +0200
+++ dhcp-4.3.3b1/client/dhclient.c 2015-08-10 10:46:20.275755506 +0200
@@ -153,11 +153,11 @@ 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)
@@ -519,7 +519,7 @@ main(int argc, char **argv) {
long temp;
int e;
- 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;
@@ -574,7 +574,7 @@ 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;
@@ -599,7 +599,7 @@ 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);
@@ -3120,7 +3120,7 @@ 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;
@@ -3313,7 +3313,7 @@ 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;
@@ -3493,7 +3493,7 @@ 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;
@@ -4011,9 +4011,9 @@ void go_daemon ()
(void) close(2);
/* Reopen them on /dev/null. */
- (void) open("/dev/null", O_RDWR);
- (void) open("/dev/null", O_RDWR);
- (void) open("/dev/null", O_RDWR);
+ (void) open("/dev/null", O_RDWR | O_CLOEXEC);
+ (void) open("/dev/null", O_RDWR | O_CLOEXEC);
+ (void) open("/dev/null", O_RDWR | O_CLOEXEC);
write_client_pid_file ();
@@ -4030,14 +4030,14 @@ 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-4.3.3b1/common/bpf.c.cloexec dhcp-4.3.3b1/common/bpf.c
--- dhcp-4.3.3b1/common/bpf.c.cloexec 2015-07-30 15:17:16.000000000 +0200
+++ dhcp-4.3.3b1/common/bpf.c 2015-08-10 10:46:20.275755506 +0200
@@ -95,7 +95,7 @@ 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-4.3.3b1/common/dlpi.c.cloexec dhcp-4.3.3b1/common/dlpi.c
--- dhcp-4.3.3b1/common/dlpi.c.cloexec 2015-07-30 15:17:16.000000000 +0200
+++ dhcp-4.3.3b1/common/dlpi.c 2015-08-10 10:46:20.275755506 +0200
@@ -804,7 +804,7 @@ dlpiopen(const char *ifname) {
}
*dp = '\0';
- return open (devname, O_RDWR, 0);
+ return open (devname, O_RDWR | O_CLOEXEC, 0);
}
/*
diff -up dhcp-4.3.3b1/common/nit.c.cloexec dhcp-4.3.3b1/common/nit.c
--- dhcp-4.3.3b1/common/nit.c.cloexec 2015-07-30 15:17:16.000000000 +0200
+++ dhcp-4.3.3b1/common/nit.c 2015-08-10 10:46:20.275755506 +0200
@@ -75,7 +75,7 @@ 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-4.3.3b1/common/resolv.c.cloexec dhcp-4.3.3b1/common/resolv.c
--- dhcp-4.3.3b1/common/resolv.c.cloexec 2015-07-30 15:17:16.000000000 +0200
+++ dhcp-4.3.3b1/common/resolv.c 2015-08-10 10:46:20.276755503 +0200
@@ -44,7 +44,7 @@ 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-4.3.3b1/common/upf.c.cloexec dhcp-4.3.3b1/common/upf.c
--- dhcp-4.3.3b1/common/upf.c.cloexec 2015-07-30 15:17:16.000000000 +0200
+++ dhcp-4.3.3b1/common/upf.c 2015-08-10 10:46:20.276755503 +0200
@@ -71,7 +71,7 @@ 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-4.3.3b1/omapip/trace.c.cloexec dhcp-4.3.3b1/omapip/trace.c
--- dhcp-4.3.3b1/omapip/trace.c.cloexec 2015-07-30 15:17:16.000000000 +0200
+++ dhcp-4.3.3b1/omapip/trace.c 2015-08-10 10:46:20.276755503 +0200
@@ -138,10 +138,10 @@ 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);
}
@@ -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-4.3.3b1/relay/dhcrelay.c.cloexec dhcp-4.3.3b1/relay/dhcrelay.c
--- dhcp-4.3.3b1/relay/dhcrelay.c.cloexec 2015-07-30 15:17:16.000000000 +0200
+++ dhcp-4.3.3b1/relay/dhcrelay.c 2015-08-10 10:46:20.276755503 +0200
@@ -187,11 +187,11 @@ 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)
@@ -558,13 +558,13 @@ 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-4.3.3b1/server/confpars.c.cloexec dhcp-4.3.3b1/server/confpars.c
--- dhcp-4.3.3b1/server/confpars.c.cloexec 2015-07-30 15:17:16.000000000 +0200
+++ dhcp-4.3.3b1/server/confpars.c 2015-08-10 10:46:20.277755500 +0200
@@ -111,7 +111,7 @@ 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-4.3.3b1/server/db.c.cloexec dhcp-4.3.3b1/server/db.c
--- dhcp-4.3.3b1/server/db.c.cloexec 2015-07-30 15:17:16.000000000 +0200
+++ dhcp-4.3.3b1/server/db.c 2015-08-10 10:47:32.644518358 +0200
@@ -1072,7 +1072,7 @@ 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 ();
@@ -1120,7 +1120,7 @@ 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;
@@ -1141,7 +1141,7 @@ int new_lease_file ()
}
#endif /* PARANOIA */
- 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-4.3.3b1/server/dhcpd.c.cloexec dhcp-4.3.3b1/server/dhcpd.c
--- dhcp-4.3.3b1/server/dhcpd.c.cloexec 2015-07-30 15:17:16.000000000 +0200
+++ dhcp-4.3.3b1/server/dhcpd.c 2015-08-10 10:46:20.278755497 +0200
@@ -194,11 +194,11 @@ 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)
@@ -743,7 +743,7 @@ main(int argc, char **argv) {
* appropriate.
*/
if (no_pid_file == ISC_FALSE) {
- 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)));
@@ -787,9 +787,9 @@ main(int argc, char **argv) {
(void) close(2);
/* Reopen them on /dev/null. */
- (void) open("/dev/null", O_RDWR);
- (void) open("/dev/null", O_RDWR);
- (void) open("/dev/null", O_RDWR);
+ (void) open("/dev/null", O_RDWR | O_CLOEXEC);
+ (void) open("/dev/null", O_RDWR | O_CLOEXEC);
+ (void) open("/dev/null", O_RDWR | O_CLOEXEC);
log_perror = 0; /* No sense logging to /dev/null. */
IGNORE_RET (chdir("/"));
diff -up dhcp-4.3.3b1/server/ldap.c.cloexec dhcp-4.3.3b1/server/ldap.c
--- dhcp-4.3.3b1/server/ldap.c.cloexec 2015-07-30 21:03:40.000000000 +0200
+++ dhcp-4.3.3b1/server/ldap.c 2015-08-10 10:46:20.279755493 +0200
@@ -1442,7 +1442,7 @@ 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));