rc_find_pids now returns RC_PIDLIST instead of a NULL terminated array.

2 files changed, 38 insertions, 29 deletions

diff --git a/src/rc/rc.c b/src/rc/rc.c
index 6754d2d3..d906870c 100644
--- a/src/rc/rc.c
+++ b/src/rc/rc.c
@@ -99,12 +99,7 @@ static RC_HOOK hook_out = 0;
 
 struct termios *termios_orig = NULL;
 
-typedef struct piditem
-{
-	pid_t pid;
-	LIST_ENTRY(piditem) entries;
-} PIDITEM;
-LIST_HEAD(, piditem) service_pids;
+RC_PIDLIST service_pids;
 
 static void clean_failed(void)
 {
@@ -138,8 +133,8 @@ static void clean_failed(void)
 static void cleanup(void)
 {
 	if (applet && strcmp(applet, "rc") == 0) {
-		PIDITEM *p1 = LIST_FIRST(&service_pids);
-		PIDITEM *p2;
+		RC_PID *p1 = LIST_FIRST(&service_pids);
+		RC_PID *p2;
 
 		if (hook_out)
 			rc_plugin_run(hook_out, runlevel);
@@ -410,14 +405,14 @@ static int get_ksoftlevel(char *buffer, int buffer_len)
 
 static void add_pid(pid_t pid)
 {
-	PIDITEM *p = xmalloc(sizeof(*p));
+	RC_PID *p = xmalloc(sizeof(*p));
 	p->pid = pid;
 	LIST_INSERT_HEAD(&service_pids, p, entries);
 }
 
 static void remove_pid(pid_t pid)
 {
-	PIDITEM *p;
+	RC_PID *p;
 
 	LIST_FOREACH(p, &service_pids, entries)
 		if (p->pid == pid) {
@@ -437,7 +432,7 @@ static void handle_signal(int sig)
 	int serrno = errno;
 	char signame[10] = { '\0' };
 	pid_t pid;
-	PIDITEM *pi;
+	RC_PID *pi;
 	int status = 0;
 	struct winsize ws;
 	sigset_t sset;
diff --git a/src/rc/start-stop-daemon.c b/src/rc/start-stop-daemon.c
index bfb737a5..9b1c109e 100644
--- a/src/rc/start-stop-daemon.c
+++ b/src/rc/start-stop-daemon.c
@@ -73,6 +73,15 @@ static struct pam_conv conv = { NULL, NULL};
 #include "rc.h"
 #include "rc-misc.h"
 
+/* Some libc implementations don't define this */
+#ifndef LIST_FOREACH_SAFE
+#define	LIST_FOREACH_SAFE(var, head, field, tvar)			\
+	for ((var) = LIST_FIRST((head));				\
+	     (var) && ((tvar) = LIST_NEXT((var), field), 1);		\
+	     (var) = (tvar))
+#endif
+
+
 typedef struct scheduleitem
 {
 	enum
@@ -301,11 +310,12 @@ static int do_stop(const char *const *argv, const char *cmd,
 		   const char *pidfile, uid_t uid,int sig,
 		   bool quiet, bool verbose, bool test)
 {
-	pid_t *pids;
+	RC_PIDLIST *pids;
+	RC_PID *pi;
+	RC_PID *np;
 	bool killed;
 	int nkilled = 0;
 	pid_t pid = 0;
-	int i;
 
 	if (pidfile) {
 		if ((pid = get_pid(pidfile, quiet)) == -1)
@@ -317,27 +327,31 @@ static int do_stop(const char *const *argv, const char *cmd,
 	if (! pids)
 		return 0;
 
-	for (i = 0; pids[i]; i++) {
+	LIST_FOREACH_SAFE(pi, pids, entries, np) {
 		if (test) {
 			if (! quiet)
-				einfo("Would send signal %d to PID %d", sig, pids[i]);
+				einfo("Would send signal %d to PID %d",
+				      sig, pi->pid);
 			nkilled++;
-			continue;
-		}
-
-		if (verbose)
-			ebegin("Sending signal %d to PID %d", sig, pids[i]);
-		errno = 0;
-		killed = (kill(pids[i], sig) == 0 || errno == ESRCH ? true : false);
-		if (verbose)
-			eend(killed ? 0 : 1, "%s: failed to send signal %d to PID %d: %s",
-			     applet, sig, pids[i], strerror(errno));
-		if (! killed) {
-			nkilled = -1;
 		} else {
-			if (nkilled != -1)
-				nkilled++;
+			if (verbose)
+				ebegin("Sending signal %d to PID %d",
+				sig, pi->pid);
+			errno = 0;
+			killed = (kill(pi->pid, sig) == 0 ||
+					errno == ESRCH ? true : false);
+			if (verbose)
+				eend(killed ? 0 : 1,
+				     "%s: failed to send signal %d to PID %d: %s",
+				     applet, sig, pi->pid, strerror(errno));
+			if (! killed) {
+				nkilled = -1;
+			} else {
+				if (nkilled != -1)
+					nkilled++;
+			}
 		}
+		free(pi);
 	}
 
 	free(pids);