If we call pid2tcb with 0 as argument, the function will
return the first tcp with flag TCB_INUSE, which will cause
problems if we call wait with pgrp id 0 on linux.
* strace.c (pid2tcb): Return NULL if argument is process
group id on linux.
---
strace.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/strace.c b/strace.c
index 3cb3758..77ae7e9 100644
--- a/strace.c
+++ b/strace.c
@@ -1343,6 +1343,11 @@ int pid;
int i;
struct tcb *tcp;
+#ifndef USE_PROCFS
+ if (pid == 0 || pid < -1)
+ return NULL;
+#endif
+
for (i = 0; i < tcbtabsize; i++) {
tcp = tcbtab[i];
if (pid && tcp->pid != pid)
--
1.6.5.2
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