diff -up dhcp-4.2.0/client/clparse.c.cloexec dhcp-4.2.0/client/clparse.c --- dhcp-4.2.0/client/clparse.c.cloexec 2010-07-21 13:55:42.000000000 +0200 +++ dhcp-4.2.0/client/clparse.c 2010-07-21 14:31:13.000000000 +0200 @@ -211,7 +211,7 @@ 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; @@ -248,7 +248,7 @@ 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-4.2.0/client/dhclient.c.cloexec dhcp-4.2.0/client/dhclient.c --- dhcp-4.2.0/client/dhclient.c.cloexec 2010-07-21 13:55:42.000000000 +0200 +++ dhcp-4.2.0/client/dhclient.c 2010-07-21 14:33:44.000000000 +0200 @@ -137,11 +137,11 @@ 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) @@ -488,7 +488,7 @@ 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; @@ -530,7 +530,7 @@ 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; @@ -555,7 +555,7 @@ 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); @@ -2931,7 +2931,7 @@ 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; @@ -3035,7 +3035,7 @@ 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; @@ -3215,7 +3215,7 @@ 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; @@ -3668,9 +3668,9 @@ 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 (); @@ -3682,14 +3682,14 @@ 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-4.2.0/common/bpf.c.cloexec dhcp-4.2.0/common/bpf.c --- dhcp-4.2.0/common/bpf.c.cloexec 2009-11-20 02:48:59.000000000 +0100 +++ dhcp-4.2.0/common/bpf.c 2010-07-21 14:31:13.000000000 +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-4.2.0/common/discover.c.cloexec dhcp-4.2.0/common/discover.c --- dhcp-4.2.0/common/discover.c.cloexec 2009-10-28 05:12:29.000000000 +0100 +++ dhcp-4.2.0/common/discover.c 2010-07-21 14:31:13.000000000 +0200 @@ -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; @@ -444,7 +444,7 @@ 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-4.2.0/common/dlpi.c.cloexec dhcp-4.2.0/common/dlpi.c --- dhcp-4.2.0/common/dlpi.c.cloexec 2009-11-20 02:49:00.000000000 +0100 +++ dhcp-4.2.0/common/dlpi.c 2010-07-21 14:31:13.000000000 +0200 @@ -807,7 +807,7 @@ dlpiopen(const char *ifname) { } *dp = '\0'; - return open (devname, O_RDWR, 0); + return open (devname, O_RDWR | O_CLOEXEC, 0); } /* diff -up dhcp-4.2.0/common/nit.c.cloexec dhcp-4.2.0/common/nit.c --- dhcp-4.2.0/common/nit.c.cloexec 2009-11-20 02:49:01.000000000 +0100 +++ dhcp-4.2.0/common/nit.c 2010-07-21 14:31:13.000000000 +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-4.2.0/common/resolv.c.cloexec dhcp-4.2.0/common/resolv.c --- dhcp-4.2.0/common/resolv.c.cloexec 2009-11-20 02:49:01.000000000 +0100 +++ dhcp-4.2.0/common/resolv.c 2010-07-21 14:31:13.000000000 +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-4.2.0/common/upf.c.cloexec dhcp-4.2.0/common/upf.c --- dhcp-4.2.0/common/upf.c.cloexec 2009-11-20 02:49:01.000000000 +0100 +++ dhcp-4.2.0/common/upf.c 2010-07-21 14:31:13.000000000 +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-4.2.0/dst/dst_api.c.cloexec dhcp-4.2.0/dst/dst_api.c --- dhcp-4.2.0/dst/dst_api.c.cloexec 2009-10-29 01:46:48.000000000 +0100 +++ dhcp-4.2.0/dst/dst_api.c 2010-07-21 14:31:13.000000000 +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-4.2.0/dst/prandom.c.cloexec dhcp-4.2.0/dst/prandom.c --- dhcp-4.2.0/dst/prandom.c.cloexec 2009-11-20 02:49:01.000000000 +0100 +++ dhcp-4.2.0/dst/prandom.c 2010-07-21 14:31:13.000000000 +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-4.2.0/omapip/trace.c.cloexec dhcp-4.2.0/omapip/trace.c --- dhcp-4.2.0/omapip/trace.c.cloexec 2010-06-01 19:29:59.000000000 +0200 +++ dhcp-4.2.0/omapip/trace.c 2010-07-21 14:36:48.000000000 +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-4.2.0/relay/dhcrelay.c.cloexec dhcp-4.2.0/relay/dhcrelay.c --- dhcp-4.2.0/relay/dhcrelay.c.cloexec 2010-02-17 21:33:55.000000000 +0100 +++ dhcp-4.2.0/relay/dhcrelay.c 2010-07-21 14:31:39.000000000 +0200 @@ -177,11 +177,11 @@ 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) @@ -520,12 +520,12 @@ 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-4.2.0/server/confpars.c.cloexec dhcp-4.2.0/server/confpars.c --- dhcp-4.2.0/server/confpars.c.cloexec 2010-03-24 22:49:47.000000000 +0100 +++ dhcp-4.2.0/server/confpars.c 2010-07-21 14:31:39.000000000 +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-4.2.0/server/db.c.cloexec dhcp-4.2.0/server/db.c --- dhcp-4.2.0/server/db.c.cloexec 2010-02-17 21:33:55.000000000 +0100 +++ dhcp-4.2.0/server/db.c 2010-07-21 14:31:39.000000000 +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-4.2.0/server/dhcpd.c.cloexec dhcp-4.2.0/server/dhcpd.c --- dhcp-4.2.0/server/dhcpd.c.cloexec 2010-06-01 19:29:59.000000000 +0200 +++ dhcp-4.2.0/server/dhcpd.c 2010-07-21 14:31:39.000000000 +0200 @@ -268,11 +268,11 @@ 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) @@ -780,7 +780,7 @@ 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) { @@ -798,7 +798,7 @@ 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()); IGNORE_RET (write(i, pbuf, strlen(pbuf))); close(i); @@ -824,9 +824,9 @@ 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-4.2.0/server/ldap.c.cloexec dhcp-4.2.0/server/ldap.c --- dhcp-4.2.0/server/ldap.c.cloexec 2010-03-25 16:26:58.000000000 +0100 +++ dhcp-4.2.0/server/ldap.c 2010-07-21 14:31:39.000000000 +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));