[Bug 219929] [NEW] dhcp3-client warns about nonexisting pid

[Roman Yepishev]

Public bug reported:

Binary package hint: dhcp3-client

In case pid file does not contain any pid, the message
 There is already a pid file /var/run/dhclient.pid with pid 134519120
is printed with random unbelievable pids.

This bugs comes from "dhclient.c.stale-pids.dpatch"
...
@@ -251,11 +251,17 @@
                if ((pidfd = fopen(path_dhclient_pid, "r")) != NULL) {
                        e = fscanf(pidfd, "%ld\n", &temp);
                        oldpid = (pid_t)temp;
+                        log_info ("There is already a pid file %s with pid %i", path_dhclient_pid, oldpid);
 
                        if (e != 0 && e != EOF) {
                                if (oldpid) {
- 
...

The log_info() call should be moved to "if (e != 0 ...)" conditional
block as e is 0 and "temp" contains random data if there is no process
ID in the pidfile.

Observed on Ubuntu 7.10, dhcp3-client Installed: 3.0.5-3ubuntu4.

** Affects: dhcp3 (Ubuntu)
     Importance: Undecided
         Status: New

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dhcp3-client warns about nonexisting pid
https://bugs.launchpad.net/bugs/219929
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