Improve the printing of cmgs when the length is 0. Fix error handling.
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3193be242b
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6accaf4a90
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=328059
@ -1493,10 +1493,15 @@ print_cmsgs(FILE *fp, pid_t pid, bool receive, struct msghdr *msghdr)
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bool first;
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len = msghdr->msg_controllen;
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if (len == 0) {
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fputs("{}", fp);
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return;
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}
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cmsgbuf = calloc(1, len);
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if (get_struct(pid, msghdr->msg_control, cmsgbuf, len) == -1) {
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fprintf(fp, "%p", msghdr->msg_control);
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free(cmsgbuf);
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return;
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}
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msghdr->msg_control = cmsgbuf;
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first = true;
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