From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 16 Mar 2011 01:55:55 +0000 (+0100)
Subject: main: check if we have a valid PID before getting the name of it
X-Git-Tag: v21~73
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=dfa7f7e139e465c7685fd530d61a52c41184bcde

main: check if we have a valid PID before getting the name of it
---

diff --git a/src/kmsg-syslogd.c b/src/kmsg-syslogd.c
index 4edb16136..c78011fe2 100644
--- a/src/kmsg-syslogd.c
+++ b/src/kmsg-syslogd.c
@@ -354,7 +354,9 @@ static int write_message(Server *s, const char *buf, struct ucred *ucred) {
         /* Then, add process if set */
         if (read_process(&buf, &iovec[i]) > 0)
                 i++;
-        else if (ucred && get_process_name(ucred->pid, &process) >= 0)
+        else if (ucred &&
+                 ucred->pid > 0 &&
+                 get_process_name(ucred->pid, &process) >= 0)
                 IOVEC_SET_STRING(iovec[i++], process);
 
         /* Skip the stored PID if we have a better one */
diff --git a/src/manager.c b/src/manager.c
index df75eca8c..9edb8f09b 100644
--- a/src/manager.c
+++ b/src/manager.c
@@ -2070,7 +2070,9 @@ static int manager_process_signal_fd(Manager *m) {
                         return -errno;
                 }
 
-                get_process_name(sfsi.ssi_pid, &p);
+                if (sfsi.ssi_pid > 0)
+                        get_process_name(sfsi.ssi_pid, &p);
+
                 log_debug("Received SIG%s from PID %lu (%s)",
                           strna(signal_to_string(sfsi.ssi_signo)),
                           (unsigned long) sfsi.ssi_pid, strna(p));