Author: tuexen
Date: Sat Apr 7 21:08:44 2018
New Revision: 332252
URL: https://svnweb.freebsd.org/changeset/base/332252
Log:
MFC r328059:
Improve the printing of cmgs when the length is 0. Fix error handling.
Modified:
stable/11/usr.bin/truss/syscalls.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/usr.bin/truss/syscalls.c
==============================================================================
--- stable/11/usr.bin/truss/syscalls.c Sat Apr 7 21:07:47 2018
(r332251)
+++ stable/11/usr.bin/truss/syscalls.c Sat Apr 7 21:08:44 2018
(r332252)
@@ -1476,10 +1476,15 @@ print_cmsgs(FILE *fp, pid_t pid, bool recv, struct msg
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;
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