Limit field width when scanning PID file.

Cppcheck warns that scanf() might otherwise crash when presented with a huge,
bogus PID file.

diff --git a/lib/pidfile.c b/lib/pidfile.c
index 47f6359f6ed2da73409b683ccabaaac6b2cd24a2..425b3043a28fdc054f26e03405aad19752eebc0f 100644 (file)
--- a/lib/pidfile.c
+++ b/lib/pidfile.c
@@ -41,7 +41,7 @@ pid_t read_pid (char *pidfile)
 
   if (!(f=fopen(pidfile,"r")))
     return 0;
-  if(fscanf(f,"%ld", &pid) != 1)
+  if(fscanf(f,"%20ld", &pid) != 1)
     pid = 0;
   fclose(f);
   return pid;