Date: Tue, 16 Jan 2018 20:02:07 +0000 (UTC) From: Michael Tuexen <tuexen@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r328059 - head/usr.bin/truss Message-ID: <201801162002.w0GK27Wv044588@repo.freebsd.org>
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Author: tuexen Date: Tue Jan 16 20:02:07 2018 New Revision: 328059 URL: https://svnweb.freebsd.org/changeset/base/328059 Log: Improve the printing of cmgs when the length is 0. Fix error handling. Modified: head/usr.bin/truss/syscalls.c Modified: head/usr.bin/truss/syscalls.c ============================================================================== --- head/usr.bin/truss/syscalls.c Tue Jan 16 19:57:30 2018 (r328058) +++ head/usr.bin/truss/syscalls.c Tue Jan 16 20:02:07 2018 (r328059) @@ -1493,10 +1493,15 @@ print_cmsgs(FILE *fp, pid_t pid, bool receive, struct 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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