utmpdump: check ftello() return value
Signed-off-by: Karel Zak <kzak@redhat.com>
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@ -169,6 +169,9 @@ static int follow_by_inotify(FILE *in, const char *filename, FILE *out)
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size = ftello(in);
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fclose(in);
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if (size < 0)
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err(EXIT_FAILURE, _("%s: cannot get file position"), filename);
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wd = inotify_add_watch(fd, filename, EVENTS);
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if (wd == -1)
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err(EXIT_FAILURE, _("%s: cannot add inotify watch."), filename);
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