diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/trasher.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/tools/trasher.c b/tools/trasher.c index aaa09f4..0b89cfe 100644 --- a/tools/trasher.c +++ b/tools/trasher.c @@ -30,6 +30,15 @@ static uint32_t ran(void) return state = state * 1664525 + 1013904223; } +static void checked_seek(FILE *stream, int64_t offset, int whence) +{ + offset = fseek(stream, offset, whence); + if (offset < 0) { + fprintf(stderr, "seek failed\n"); + exit(1); + } +} + int main(int argc, char **argv) { FILE *f; @@ -49,17 +58,14 @@ int main(int argc, char **argv) maxburst = atoi(argv[3]); state = atoi(argv[4]); - fseek(f, 0, SEEK_END); + checked_seek(f, 0, SEEK_END); length = ftell(f); - fseek(f, 0, SEEK_SET); + checked_seek(f, 0, SEEK_SET); while (count--) { int burst = 1 + ran() * (uint64_t) (abs(maxburst) - 1) / UINT32_MAX; int pos = ran() * (uint64_t) length / UINT32_MAX; - if (fseek(f, pos, SEEK_SET) < 0) { - fprintf(stderr, "seek failed\n"); - return 1; - } + checked_seek(f, pos, SEEK_SET); if (maxburst < 0) burst = -maxburst; |
