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authorMax Kellermann <max@duempel.org>2009-01-18 17:15:34 +0100
committerMax Kellermann <max@duempel.org>2009-01-18 17:15:34 +0100
commit90b34f8e6feb4dabc8da0d782cf5146318cfc02a (patch)
tree394a6135f7b7382916578693c571f08b4ac90bee /src/daemon.c
parent1f0dfb4407344996bbe874525413275b79da12b3 (diff)
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main: moved code to daemon.c
Moved changeToUser(), cleanUpPidFile(), killFromPidFile() to daemon.c. These are daemonization functions.
Diffstat (limited to 'src/daemon.c')
-rw-r--r--src/daemon.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/src/daemon.c b/src/daemon.c
index 566c59250..99ba4d9df 100644
--- a/src/daemon.c
+++ b/src/daemon.c
@@ -28,6 +28,46 @@
#include <sys/stat.h>
#include <fcntl.h>
+#ifndef WIN32
+#include <signal.h>
+#include <pwd.h>
+#include <grp.h>
+#endif
+
+void
+daemonize_kill(void)
+{
+#ifndef WIN32
+ FILE *fp;
+ struct config_param *param =
+ parseConfigFilePath(CONF_PID_FILE, 0);
+ int pid, ret;
+
+ if (param == NULL)
+ g_error("no pid_file specified in the config file");
+
+ fp = fopen(param->value, "r");
+ if (fp == NULL)
+ g_error("unable to open %s \"%s\": %s",
+ CONF_PID_FILE, param->value, g_strerror(errno));
+
+ if (fscanf(fp, "%i", &pid) != 1) {
+ g_error("unable to read the pid from file \"%s\"",
+ param->value);
+ }
+ fclose(fp);
+
+ ret = kill(pid, SIGTERM);
+ if (ret < 0)
+ g_error("unable to kill proccess %i: %s",
+ pid, g_strerror(errno));
+
+ exit(EXIT_SUCCESS);
+#else
+ g_error("--kill is not available on WIN32");
+#endif
+}
+
void
daemonize_close_stdin(void)
{
@@ -42,6 +82,50 @@ daemonize_close_stdin(void)
}
void
+daemonize_set_user(void)
+{
+#ifndef WIN32
+ struct config_param *param = config_get_param(CONF_USER);
+
+ if (param && strlen(param->value)) {
+ /* get uid */
+ struct passwd *userpwd;
+ if ((userpwd = getpwnam(param->value)) == NULL) {
+ g_error("no such user \"%s\" at line %i",
+ param->value, param->line);
+ }
+
+ if (setgid(userpwd->pw_gid) == -1) {
+ g_error("cannot setgid for user \"%s\" at line %i: %s",
+ param->value, param->line, strerror(errno));
+ }
+#ifdef _BSD_SOURCE
+ /* init suplementary groups
+ * (must be done before we change our uid)
+ */
+ if (initgroups(param->value, userpwd->pw_gid) == -1) {
+ g_warning("cannot init supplementary groups "
+ "of user \"%s\" at line %i: %s",
+ param->value, param->line, strerror(errno));
+ }
+#endif
+
+ /* set uid */
+ if (setuid(userpwd->pw_uid) == -1) {
+ g_error("cannot change to uid of user "
+ "\"%s\" at line %i: %s",
+ param->value, param->line, strerror(errno));
+ }
+
+ /* this is needed by libs such as arts */
+ if (userpwd->pw_dir) {
+ g_setenv("HOME", userpwd->pw_dir, true);
+ }
+ }
+#endif
+}
+
+void
daemonize(Options *options)
{
#ifndef WIN32
@@ -91,3 +175,16 @@ daemonize(Options *options)
(void)options;
#endif
}
+
+void
+daemonize_delete_pidfile(void)
+{
+ struct config_param *param = parseConfigFilePath(CONF_PID_FILE, 0);
+
+ if (param == NULL)
+ return;
+
+ g_debug("cleaning up pid file");
+
+ unlink(param->value);
+}