diff options
| -rw-r--r-- | usr.bin/truss/syscalls.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/usr.bin/truss/syscalls.c b/usr.bin/truss/syscalls.c index 2477b22..ba03094 100644 --- a/usr.bin/truss/syscalls.c +++ b/usr.bin/truss/syscalls.c @@ -1476,10 +1476,15 @@ print_cmsgs(FILE *fp, pid_t pid, bool recv, struct msghdr *msghdr) bool first; len = msghdr->msg_controllen; + if (len == 0) { + fputs("{}", fp); + return; + } cmsgbuf = calloc(1, len); if (get_struct(pid, msghdr->msg_control, cmsgbuf, len) == -1) { fprintf(fp, "%p", msghdr->msg_control); free(cmsgbuf); + return; } msghdr->msg_control = cmsgbuf; first = true; |
