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service_register(): Do not modify input string, may be read-only

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Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson
2017-10-15 21:17:00 +02:00
parent e131b20a6c
commit 1a45045a0f
1 changed files with 14 additions and 5 deletions
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src/service.c
+14 -5
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@@ -456,7 +456,7 @@ void service_runlevel(int newlevel)
/**
* service_register - Register service, task or run commands
* @type: %SVC_TYPE_SERVICE(0), %SVC_TYPE_TASK(1), %SVC_TYPE_RUN(2)
* @line: A complete command line with -- separated description text
* @svcline: A complete command line with -- separated description text
* @mtime: The modification time if service is loaded from /etc/finit.d
*
* This function is used to register commands to be run on different
@@ -504,7 +504,7 @@ void service_runlevel(int newlevel)
* Returns:
* POSIX OK(0) on success, or non-zero errno exit status on failure.
*/
int service_register(int type, char *line, struct timeval *mtime)
int service_register(int type, char *svcline, struct timeval *mtime)
{
int i = 0;
int id = 1; /* Default to ID:1 */
@@ -512,17 +512,21 @@ int service_register(int type, char *line, struct timeval *mtime)
int forking = 0;
#endif
int log = 0, levels = 0;
char *username = NULL;
char *username = NULL, *line;
char *service = NULL, *proto = NULL, *ifaces = NULL;
char *cmd, *desc, *runlevels = NULL, *cond = NULL;
svc_t *svc;
plugin_t *plugin = NULL;
if (!line) {
if (!svcline) {
_e("Invalid input argument");
return errno = EINVAL;
}
line = strdup(svcline);
if (!line)
return 1;
desc = strstr(line, "-- ");
if (desc) {
*desc = 0;
@@ -535,7 +539,8 @@ int service_register(int type, char *line, struct timeval *mtime)
cmd = strtok(line, " ");
if (!cmd) {
incomplete:
_e("Incomplete service, cannot register");
_e("Incomplete service '%s', cannot register", svcline);
free(line);
return errno = ENOENT;
}
@@ -570,6 +575,7 @@ int service_register(int type, char *line, struct timeval *mtime)
levels = conf_parse_runlevels(runlevels);
if (runlevel > 0 && !ISOTHER(levels, 0)) {
_d("Skipping %s, bootstrap is completed.", cmd);
free(line);
return 0;
}
@@ -601,6 +607,7 @@ int service_register(int type, char *line, struct timeval *mtime)
plugin = plugin_find(ps);
if (!plugin || !plugin->inetd.cmd) {
_w("Inetd service %s has no internal plugin, skipping ...", service);
free(line);
return errno = ENOENT;
}
}
@@ -674,6 +681,7 @@ recreate:
if (inetd_new(&svc->inetd, name, service, proto, forking, svc)) {
_e("Failed registering new inetd service %s/%s", service, proto);
free(line);
return svc_del(svc);
}
@@ -696,6 +704,7 @@ recreate:
/* New, recently modified or unchanged ... used on reload. */
svc_check_dirty(svc, mtime);
free(line);
return 0;
}