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zdtm/dumpable02: don't print a non-null terminated string

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Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
This commit is contained in:
Andrei Vagin 2017-03-29 23:15:00 +03:00 • committed by Pavel Emelyanov
parent a2a07874d1
commit feff2efa9a
1 changed files with 2 additions and 1 deletions
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3
test/zdtm/static/dumpable02.c
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@ -36,11 +36,12 @@ int get_dumpable_from_pipes(int pipe_input, int pipe_output) {
/* input and output are from the child's point of view. */
write(pipe_input, "GET\n", 4);
len = read(pipe_output, buf, sizeof(buf));
len = read(pipe_output, buf, sizeof(buf) - 1);
if (len < 0) {
pr_perror("error in parent reading from pipe");
return -1;
}
buf[len] = 0;
if (memcmp(buf, "DUMPABLE:", 9) != 0) {
pr_perror("child returned [%s]", buf);