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| author | Christian Neukirchen <chneukirchen@gmail.com> | 2016-06-13 15:50:17 +0200 |
|---|---|---|
| committer | Christian Neukirchen <chneukirchen@gmail.com> | 2016-06-13 15:50:17 +0200 |
| commit | 42f0b52d8fae12f2bbe82111a7312bf5d66fcb6b (patch) | |
| tree | bfba938894f0008ca43753bd6b209b6bdcfe54ee | |
| parent | 9dc80af52106832b1ad58868c4c0314c93e9f6d5 (diff) | |
| download | extrace-42f0b52d8fae12f2bbe82111a7312bf5d66fcb6b.tar.gz extrace-42f0b52d8fae12f2bbe82111a7312bf5d66fcb6b.tar.xz extrace-42f0b52d8fae12f2bbe82111a7312bf5d66fcb6b.zip | |
check fscanf return value
| -rw-r--r-- | extrace.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/extrace.c b/extrace.c index 50506ce..560481a 100644 --- a/extrace.c +++ b/extrace.c @@ -101,7 +101,8 @@ pid_depth(pid_t pid) snprintf(name, sizeof name, "/proc/%d/stat", pid); if ((f = fopen(name, "r"))) { - fscanf(f, "%*d (%*[^)]) %*c %d", &ppid); + if (fscanf(f, "%*d (%*[^)]) %*c %d", &ppid) < 0) + ppid = 0; fclose(f); } |