if check_tcp was called with -e but not -s, it would hang in a call to my_recv. the

fix committed here adds on more piece of logic to the check to see if more data needs
to be read, avoiding the deadlock call.  a better fix would be to not use these "voodoo"
heuristics and instead use poll() or select(), but that's quite a bit more complicated.


git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@1170 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 4 insertions, 2 deletions

diff --git a/plugins/check_tcp.c b/plugins/check_tcp.c
index 979dfad..fd2fe66 100644
--- a/plugins/check_tcp.c
+++ b/plugins/check_tcp.c
@@ -322,8 +322,10 @@ main (int argc, char **argv)
                 while ((i = my_recv ()) > 0) {
                         buffer[i] = '\0';
                         asprintf (&status, "%s%s", status, buffer);
-                        if (buffer[i-2] == '\r' && buffer[i-1] == '\n')
-                                break;
+                        if (buffer[i-1] == '\n') {
+                                if (buffer[i-2] == '\r' || i < MAXBUF-1)
+                                        break;
+                        }
                         if (maxbytes>0 && strlen(status) >= (unsigned)maxbytes)
                                 break;
                 }