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Diffstat (limited to 'networking/inetd.c')
-rw-r--r--networking/inetd.c141
1 files changed, 66 insertions, 75 deletions
diff --git a/networking/inetd.c b/networking/inetd.c
index 9947f01ae..e47022350 100644
--- a/networking/inetd.c
+++ b/networking/inetd.c
@@ -311,18 +311,19 @@ static FILE *fconfig;
static char line[1024];
static char *defhost;
-static char *newstr (char *cp)
+/* xstrdup(NULL) returns NULL, but this one
+ * will return newly-allocated "" if called with NULL arg
+ * TODO: audit whether this makes any real difference
+ */
+static char *xxstrdup (char *cp)
{
- if ((cp = strdup (cp ? cp : "")))
- return (cp);
- syslog (LOG_ERR, "strdup: %m");
- exit (1);
+ return xstrdup (cp ? cp : "");
}
static int setconfig (void)
{
free (defhost);
- defhost = newstr ("*");
+ defhost = xstrdup ("*");
if (fconfig != NULL) {
fseek (fconfig, 0L, SEEK_SET);
return (1);
@@ -350,12 +351,12 @@ static void register_rpc (servtab_t *sep)
socklen_t size;
if ((pp = getprotobyname (sep->se_proto + 4)) == NULL) {
- syslog (LOG_ERR, "%s: getproto: %m", sep->se_proto);
+ bb_perror_msg ("%s: getproto", sep->se_proto);
return;
}
size = sizeof ir_sin;
if (getsockname (sep->se_fd, (struct sockaddr *) &ir_sin, &size) < 0) {
- syslog (LOG_ERR, "%s/%s: getsockname: %m",
+ bb_perror_msg ("%s/%s: getsockname",
sep->se_service, sep->se_proto);
return;
}
@@ -363,7 +364,7 @@ static void register_rpc (servtab_t *sep)
for (n = sep->se_rpcversl; n <= sep->se_rpcversh; n++) {
(void) pmap_unset (sep->se_rpcprog, n);
if (!pmap_set (sep->se_rpcprog, n, pp->p_proto, ntohs (ir_sin.sin_port)))
- syslog (LOG_ERR, "%s %s: pmap_set: %u %u %u %u: %m",
+ bb_perror_msg ("%s %s: pmap_set: %u %u %u %u",
sep->se_service, sep->se_proto,
sep->se_rpcprog, n, pp->p_proto, ntohs (ir_sin.sin_port));
}
@@ -375,7 +376,7 @@ static void unregister_rpc (servtab_t *sep)
for (n = sep->se_rpcversl; n <= sep->se_rpcversh; n++) {
if (!pmap_unset (sep->se_rpcprog, n))
- syslog (LOG_ERR, "pmap_unset(%u, %u)", sep->se_rpcprog, n);
+ bb_error_msg ("pmap_unset(%u, %u)", sep->se_rpcprog, n);
}
}
#endif /* CONFIG_FEATURE_INETD_RPC */
@@ -401,19 +402,19 @@ static int bump_nofile (void)
struct rlimit rl;
if (getrlimit (RLIMIT_NOFILE, &rl) < 0) {
- syslog (LOG_ERR, "getrlimit: %m");
+ bb_perror_msg ("getrlimit");
return -1;
}
rl.rlim_cur = MIN (rl.rlim_max, rl.rlim_cur + FD_CHUNK);
rl.rlim_cur = MIN (FD_SETSIZE, rl.rlim_cur + FD_CHUNK);
if (rl.rlim_cur <= rlim_ofile_cur) {
- syslog (LOG_ERR, "bump_nofile: cannot extend file limit, max = %d",
+ bb_error_msg ("bump_nofile: cannot extend file limit, max = %d",
(int) rl.rlim_cur);
return -1;
}
if (setrlimit (RLIMIT_NOFILE, &rl) < 0) {
- syslog (LOG_ERR, "setrlimit: %m");
+ bb_perror_msg ("setrlimit");
return -1;
}
@@ -427,13 +428,13 @@ static void setup (servtab_t *sep)
int r;
if ((sep->se_fd = socket (sep->se_family, sep->se_socktype, 0)) < 0) {
- syslog (LOG_ERR, "%s/%s: socket: %m", sep->se_service, sep->se_proto);
+ bb_perror_msg ("%s/%s: socket", sep->se_service, sep->se_proto);
return;
}
#define turnon(fd, opt) \
setsockopt(fd, SOL_SOCKET, opt, (char *)&on, sizeof (on))
if (turnon (sep->se_fd, SO_REUSEADDR) < 0)
- syslog (LOG_ERR, "setsockopt (SO_REUSEADDR): %m");
+ bb_perror_msg ("setsockopt (SO_REUSEADDR)");
#undef turnon
#ifdef CONFIG_FEATURE_INETD_RPC
@@ -467,7 +468,7 @@ setsockopt(fd, SOL_SOCKET, opt, (char *)&on, sizeof (on))
#endif
r = bind (sep->se_fd, &sep->se_ctrladdr, sep->se_ctrladdr_size);
if (r < 0) {
- syslog (LOG_ERR, "%s/%s (%d): bind: %m",
+ bb_perror_msg ("%s/%s (%d): bind",
sep->se_service, sep->se_proto, sep->se_ctrladdr.sa_family);
close (sep->se_fd);
sep->se_fd = -1;
@@ -510,7 +511,7 @@ static char *skip (char **cpp) /* int report; */
/* erp: */
if (*cpp == NULL) {
/* if (report) */
- /* syslog(LOG_ERR, "syntax error in inetd config file"); */
+ /* bb_error_msg ("syntax error in inetd config file"); */
return (NULL);
}
@@ -543,14 +544,7 @@ again:
static servtab_t *new_servtab(void)
{
- servtab_t *sep;
-
- sep = (servtab_t *) malloc (sizeof (servtab_t));
- if (sep == NULL) {
- syslog (LOG_ERR, bb_msg_memory_exhausted);
- exit (1);
- }
- return sep;
+ return xmalloc (sizeof (servtab_t));
}
static servtab_t *dupconfig (servtab_t *sep)
@@ -560,26 +554,25 @@ static servtab_t *dupconfig (servtab_t *sep)
newtab = new_servtab();
memset (newtab, 0, sizeof (servtab_t));
- newtab->se_service = sep->se_service ? newstr (sep->se_service) : NULL;
+ newtab->se_service = xstrdup (sep->se_service);
newtab->se_socktype = sep->se_socktype;
newtab->se_family = sep->se_family;
- newtab->se_proto = sep->se_proto ? newstr (sep->se_proto) : NULL;
+ newtab->se_proto = xstrdup (sep->se_proto);
#ifdef CONFIG_FEATURE_INETD_RPC
newtab->se_rpcprog = sep->se_rpcprog;
newtab->se_rpcversl = sep->se_rpcversl;
newtab->se_rpcversh = sep->se_rpcversh;
#endif
newtab->se_wait = sep->se_wait;
- newtab->se_user = sep->se_user ? newstr (sep->se_user) : NULL;
- newtab->se_group = sep->se_group ? newstr (sep->se_group) : NULL;
+ newtab->se_user = xstrdup (sep->se_user);
+ newtab->se_group = xstrdup (sep->se_group);
#ifdef INETD_FEATURE_ENABLED
newtab->se_bi = sep->se_bi;
#endif
- newtab->se_server = sep->se_server ? newstr (sep->se_server) : 0;
+ newtab->se_server = xstrdup (sep->se_server);
for (argc = 0; argc <= MAXARGV; argc++)
- newtab->se_argv[argc] = sep->se_argv[argc] ?
- newstr (sep->se_argv[argc]) : NULL;
+ newtab->se_argv[argc] = xstrdup (sep->se_argv[argc]);
newtab->se_max = sep->se_max;
return (newtab);
@@ -617,7 +610,7 @@ more:
hostdelim = strrchr (arg, ':');
if (hostdelim) {
*hostdelim = '\0';
- sep->se_hostaddr = newstr (arg);
+ sep->se_hostaddr = xstrdup (arg);
arg = hostdelim + 1;
/*
* If the line is of the form `host:', then just change the
@@ -632,9 +625,9 @@ more:
}
}
} else
- sep->se_hostaddr = newstr (defhost);
+ sep->se_hostaddr = xxstrdup (defhost);
- sep->se_service = newstr (arg);
+ sep->se_service = xxstrdup (arg);
arg = skip (&cp);
if (strcmp (arg, "stream") == 0)
@@ -650,7 +643,7 @@ more:
else
sep->se_socktype = -1;
- sep->se_proto = newstr (skip (&cp));
+ sep->se_proto = xxstrdup (skip (&cp));
if (strcmp (sep->se_proto, "unix") == 0) {
sep->se_family = AF_UNIX;
@@ -660,7 +653,7 @@ more:
#ifdef CONFIG_FEATURE_IPV6
sep->se_family = AF_INET6;
#else
- syslog (LOG_ERR, "%s: IPV6 not supported", sep->se_proto);
+ bb_error_msg ("%s: IPV6 not supported", sep->se_proto);
#endif
if (strncmp (sep->se_proto, "rpc/", 4) == 0) {
#ifdef CONFIG_FEATURE_INETD_RPC
@@ -669,14 +662,14 @@ more:
p = strchr (sep->se_service, '/');
if (p == 0) {
- syslog (LOG_ERR, "%s: no rpc version", sep->se_service);
+ bb_error_msg ("%s: no rpc version", sep->se_service);
goto more;
}
*p++ = '\0';
l = strtol (p, &ccp, 0);
if (ccp == p || l < 0 || l > INT_MAX) {
badafterall:
- syslog (LOG_ERR, "%s/%s: bad rpc version", sep->se_service, p);
+ bb_error_msg ("%s/%s: bad rpc version", sep->se_service, p);
goto more;
}
sep->se_rpcversl = sep->se_rpcversh = l;
@@ -689,7 +682,7 @@ more:
} else if (*ccp != '\0')
goto badafterall;
#else
- syslog (LOG_ERR, "%s: rpc services not supported", sep->se_service);
+ bb_error_msg ("%s: rpc services not supported", sep->se_service);
#endif
}
}
@@ -708,18 +701,18 @@ more:
sep->se_wait = strcmp (arg, "wait") == 0;
/* if ((arg = skip(&cp, 1)) == NULL) */
/* goto more; */
- sep->se_user = newstr (skip (&cp));
+ sep->se_user = xxstrdup (skip (&cp));
arg = strchr (sep->se_user, '.');
if (arg == NULL)
arg = strchr (sep->se_user, ':');
if (arg) {
*arg++ = '\0';
- sep->se_group = newstr (arg);
+ sep->se_group = xstrdup (arg);
}
/* if ((arg = skip(&cp, 1)) == NULL) */
/* goto more; */
- sep->se_server = newstr (skip (&cp));
+ sep->se_server = xxstrdup (skip (&cp));
if (strcmp (sep->se_server, "internal") == 0) {
#ifdef INETD_FEATURE_ENABLED
const struct builtin *bi;
@@ -729,13 +722,13 @@ more:
strcmp (bi->bi_service, sep->se_service) == 0)
break;
if (bi->bi_service == 0) {
- syslog (LOG_ERR, "internal service %s unknown", sep->se_service);
+ bb_error_msg ("internal service %s unknown", sep->se_service);
goto more;
}
sep->se_bi = bi;
sep->se_wait = bi->bi_wait;
#else
- syslog (LOG_ERR, "internal service %s unknown", sep->se_service);
+ bb_perror_msg ("internal service %s unknown", sep->se_service);
goto more;
#endif
}
@@ -746,7 +739,7 @@ more:
argc = 0;
for (arg = skip (&cp); cp; arg = skip (&cp)) {
if (argc < MAXARGV)
- sep->se_argv[argc++] = newstr (arg);
+ sep->se_argv[argc++] = xxstrdup (arg);
}
while (argc <= MAXARGV)
sep->se_argv[argc++] = NULL;
@@ -764,7 +757,7 @@ more:
* and make a dup for the new entry.
*/
*hostdelim++ = '\0';
- nsep->se_hostaddr = newstr (hostdelim);
+ nsep->se_hostaddr = xstrdup (hostdelim);
nsep->se_next = sep->se_next;
sep->se_next = nsep;
@@ -781,12 +774,11 @@ more:
hp = gethostbyname (nsep->se_hostaddr);
if (hp == 0) {
- syslog (LOG_ERR, "%s: unknown host", nsep->se_hostaddr);
+ bb_error_msg ("%s: unknown host", nsep->se_hostaddr);
nsep->se_checked = 0;
goto skip;
} else if (hp->h_addrtype != AF_INET) {
- syslog (LOG_ERR,
- "%s: address isn't an Internet "
+ bb_error_msg ("%s: address isn't an Internet "
"address", nsep->se_hostaddr);
nsep->se_checked = 0;
goto skip;
@@ -797,7 +789,7 @@ more:
hp->h_addr_list[0], sizeof (struct in_addr));
while (hp->h_addr_list[i] != NULL) {
psep = dupconfig (nsep);
- psep->se_hostaddr = newstr (nsep->se_hostaddr);
+ psep->se_hostaddr = xxstrdup (nsep->se_hostaddr);
psep->se_checked = 1;
memmove (&psep->se_ctrladdr_in.sin_addr,
hp->h_addr_list[i], sizeof (struct in_addr));
@@ -913,7 +905,7 @@ static void config (int sig ATTRIBUTE_UNUSED)
char protoname[10];
if (!setconfig ()) {
- syslog (LOG_ERR, "%s: %m", CONFIG);
+ bb_perror_msg ("%s", CONFIG);
return;
}
for (sep = servtab; sep; sep = sep->se_next)
@@ -989,7 +981,7 @@ static void config (int sig ATTRIBUTE_UNUSED)
if (sep->se_rpcprog == 0) {
rp = getrpcbyname (sep->se_service);
if (rp == 0) {
- syslog (LOG_ERR, "%s: unknown rpc service", sep->se_service);
+ bb_error_msg ("%s: unknown rpc service", sep->se_service);
goto serv_unknown;
}
sep->se_rpcprog = rp->r_number;
@@ -1009,8 +1001,8 @@ static void config (int sig ATTRIBUTE_UNUSED)
protoname[strlen (protoname) - 1] = '\0';
sp = getservbyname (sep->se_service, protoname);
if (sp == 0) {
- syslog (LOG_ERR,
- "%s/%s: unknown service", sep->se_service, sep->se_proto);
+ bb_error_msg ("%s/%s: unknown service",
+ sep->se_service, sep->se_proto);
goto serv_unknown;
}
port = sp->s_port;
@@ -1042,7 +1034,7 @@ static void config (int sig ATTRIBUTE_UNUSED)
if (sep->se_rpcprog == 0) {
rp = getrpcbyname (sep->se_service);
if (rp == 0) {
- syslog (LOG_ERR, "%s: unknown rpc service", sep->se_service);
+ bb_error_msg ("%s: unknown rpc service", sep->se_service);
goto serv_unknown;
}
sep->se_rpcprog = rp->r_number;
@@ -1062,8 +1054,8 @@ static void config (int sig ATTRIBUTE_UNUSED)
protoname[strlen (protoname) - 1] = '\0';
sp = getservbyname (sep->se_service, protoname);
if (sp == 0) {
- syslog (LOG_ERR,
- "%s/%s: unknown service", sep->se_service, sep->se_proto);
+ bb_error_msg ("%s/%s: unknown service",
+ sep->se_service, sep->se_proto);
goto serv_unknown;
}
port = sp->s_port;
@@ -1137,12 +1129,11 @@ static void reapchild (int sig ATTRIBUTE_UNUSED)
for (sep = servtab; sep; sep = sep->se_next)
if (sep->se_wait == pid) {
if (WIFEXITED (status) && WEXITSTATUS (status))
- syslog (LOG_WARNING,
- "%s: exit status 0x%x",
+ bb_error_msg("%s: exit status 0x%x",
sep->se_server, WEXITSTATUS (status));
else if (WIFSIGNALED (status))
- syslog (LOG_WARNING,
- "%s: exit signal 0x%x", sep->se_server, WTERMSIG (status));
+ bb_error_msg("%s: exit signal 0x%x",
+ sep->se_server, WTERMSIG (status));
sep->se_wait = 1;
FD_SET (sep->se_fd, &allsock);
nsock++;
@@ -1271,7 +1262,7 @@ inetd_main (int argc, char *argv[])
toomany = strtoul (stoomany, &e, 0);
if (!(toomany >= 0 && *e == '\0')) {
toomany = TOOMANY;
- syslog (LOG_ERR, "-R %s: bad value for service invocation rate", stoomany);
+ bb_perror_msg ("-R %s: bad value for service invocation rate", stoomany);
}
}
argc -= optind;
@@ -1295,6 +1286,7 @@ inetd_main (int argc, char *argv[])
} else {
setsid ();
}
+ logmode = LOGMODE_SYSLOG;
if (uid == 0) {
gid_t gid = getgid ();
@@ -1313,7 +1305,7 @@ inetd_main (int argc, char *argv[])
}
if (getrlimit (RLIMIT_NOFILE, &rlim_ofile) < 0) {
- syslog (LOG_ERR, "getrlimit: %m");
+ bb_perror_msg ("getrlimit");
} else {
rlim_ofile_cur = rlim_ofile.rlim_cur;
if (rlim_ofile_cur == RLIM_INFINITY) /* ! */
@@ -1365,7 +1357,7 @@ inetd_main (int argc, char *argv[])
readable = allsock;
if ((n = select (maxsock + 1, &readable, NULL, NULL, NULL)) <= 0) {
if (n < 0 && errno != EINTR) {
- syslog (LOG_WARNING, "select: %m");
+ bb_perror_msg("select");
sleep (1);
}
continue;
@@ -1378,7 +1370,7 @@ inetd_main (int argc, char *argv[])
if (ctrl < 0) {
if (errno == EINTR)
continue;
- syslog (LOG_WARNING, "accept (for %s): %m", sep->se_service);
+ bb_perror_msg("accept (for %s)", sep->se_service);
continue;
}
if (sep->se_family == AF_INET && sep->se_socktype == SOCK_STREAM) {
@@ -1386,7 +1378,7 @@ inetd_main (int argc, char *argv[])
socklen_t plen = sizeof (peer);
if (getpeername (ctrl, (struct sockaddr *) &peer, &plen) < 0) {
- syslog (LOG_WARNING, "could not getpeername");
+ bb_error_msg("could not getpeername");
close (ctrl);
continue;
}
@@ -1426,8 +1418,7 @@ inetd_main (int argc, char *argv[])
--sep->se_count;
continue;
}
- syslog (LOG_ERR,
- "%s/%s server failing (looping), service terminated",
+ bb_error_msg ("%s/%s server failing (looping), service terminated",
sep->se_service, sep->se_proto);
if (!sep->se_wait && sep->se_socktype == SOCK_STREAM)
close (ctrl);
@@ -1447,7 +1438,7 @@ inetd_main (int argc, char *argv[])
pid = fork ();
}
if (pid < 0) {
- syslog (LOG_ERR, "fork: %m");
+ bb_perror_msg ("fork");
if (!sep->se_wait && sep->se_socktype == SOCK_STREAM)
close (ctrl);
sigprocmask(SIG_UNBLOCK, &omask, NULL);
@@ -1468,15 +1459,15 @@ inetd_main (int argc, char *argv[])
#endif
{
if ((pwd = getpwnam (sep->se_user)) == NULL) {
- syslog (LOG_ERR, "getpwnam: %s: No such user", sep->se_user);
+ bb_error_msg ("getpwnam: %s: no such user", sep->se_user);
if (sep->se_socktype != SOCK_STREAM)
recv (0, buf, sizeof (buf), 0);
_exit (1);
}
if (setsid () < 0)
- syslog (LOG_ERR, "%s: setsid: %m", sep->se_service);
+ bb_perror_msg ("%s: setsid", sep->se_service);
if (sep->se_group && (grp = getgrnam (sep->se_group)) == NULL) {
- syslog (LOG_ERR, "getgrnam: %s: No such group", sep->se_group);
+ bb_error_msg ("getgrnam: %s: no such group", sep->se_group);
if (sep->se_socktype != SOCK_STREAM)
recv (0, buf, sizeof (buf), 0);
_exit (1);
@@ -1502,7 +1493,7 @@ inetd_main (int argc, char *argv[])
dup2 (0, 2);
if (rlim_ofile.rlim_cur != rlim_ofile_cur)
if (setrlimit (RLIMIT_NOFILE, &rlim_ofile) < 0)
- syslog (LOG_ERR, "setrlimit: %m");
+ bb_perror_msg ("setrlimit");
closelog ();
for (tmpint = rlim_ofile_cur - 1; --tmpint > 2;)
(void) close (tmpint);
@@ -1510,7 +1501,7 @@ inetd_main (int argc, char *argv[])
execv (sep->se_server, sep->se_argv);
if (sep->se_socktype != SOCK_STREAM)
recv (0, buf, sizeof (buf), 0);
- syslog (LOG_ERR, "execv %s: %m", sep->se_server);
+ bb_perror_msg ("execv %s", sep->se_server);
_exit (1);
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-11 15:42:47 +0000