From: Rob Landley <rob@landley.net>
Date: Mon, 4 Sep 2006 18:59:39 +0000 (-0000)
Subject: Patch from Natanael Copa to make start-stop-daemon just use readlink and
X-Git-Tag: 1_4_0~752
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=8cedabaee09937809802e1791cbc6caffdbd3024;p=oweals%2Fbusybox.git

Patch from Natanael Copa to make start-stop-daemon just use readlink and
strcmp to check if a program is already running.
---

diff --git a/debianutils/start_stop_daemon.c b/debianutils/start_stop_daemon.c
index 9c9b5fe77..e0c8f2d9b 100644
--- a/debianutils/start_stop_daemon.c
+++ b/debianutils/start_stop_daemon.c
@@ -39,16 +39,17 @@ static inline void push(pid_t pid)
 
 static int pid_is_exec(pid_t pid, const char *name)
 {
-	char buf[32];
-	struct stat sb, exec_stat;
-
-	if (name)
-		xstat(name, &exec_stat);
+	char buf[32], *execbuf;
+	int equal;
 
 	sprintf(buf, "/proc/%d/exe", pid);
-	if (stat(buf, &sb) != 0)
-		return 0;
-	return (sb.st_dev == exec_stat.st_dev && sb.st_ino == exec_stat.st_ino);
+	execbuf = xstrdup(name);
+	readlink(buf, execbuf, strlen(name)+1);
+	
+	equal = ! strcmp(execbuf, name);
+	if (ENABLE_FEATURE_CLEAN_UP)
+		free(execbuf);
+	return equal;
 }
 
 static int pid_is_user(int pid, int uid)