Fix debug output of wait4 result (was reusing buf[] on unknown events)
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
diff --git a/strace.c b/strace.c
index f767831..3fd35d9 100644
--- a/strace.c
+++ b/strace.c
@@ -2001,7 +2001,7 @@
event = ((unsigned)status >> 16);
if (debug_flag) {
char buf[sizeof("WIFEXITED,exitcode=%u") + sizeof(int)*3 /*paranoia:*/ + 16];
- char evbuf[sizeof(",PTRACE_EVENT_?? (%u)") + sizeof(int)*3 /*paranoia:*/ + 16];
+ char evbuf[sizeof(",EVENT_VFORK_DONE (%u)") + sizeof(int)*3 /*paranoia:*/ + 16];
strcpy(buf, "???");
if (WIFSIGNALED(status))
#ifdef WCOREDUMP
@@ -2031,16 +2031,12 @@
[PTRACE_EVENT_EXIT] = "EXIT",
/* [PTRACE_EVENT_STOP (=128)] would make biggish array */
};
- const char *e;
+ const char *e = "??";
if (event < ARRAY_SIZE(event_names))
e = event_names[event];
else if (event == PTRACE_EVENT_STOP)
e = "STOP";
- else {
- sprintf(buf, "?? (%u)", event);
- e = buf;
- }
- sprintf(evbuf, ",PTRACE_EVENT_%s", e);
+ sprintf(evbuf, ",EVENT_%s (%u)", e, event);
}
fprintf(stderr, " [wait(0x%04x) = %u] %s%s\n", status, pid, buf, evbuf);
}