| 1 | #include "test-tool.h" |
| 2 | #include "git-compat-util.h" |
| 3 | |
| 4 | /* |
| 5 | * Truncate a file to the given size. |
| 6 | */ |
| 7 | int cmd__truncate(int argc, const char **argv) |
| 8 | { |
| 9 | char *p = NULL; |
| 10 | uintmax_t sz = 0; |
| 11 | int fd = -1; |
| 12 | |
| 13 | if (argc != 3) |
| 14 | die("expected filename and size"); |
| 15 | |
| 16 | sz = strtoumax(argv[2], &p, 0); |
| 17 | if (*p) |
| 18 | die("invalid size"); |
| 19 | |
| 20 | fd = xopen(argv[1], O_WRONLY | O_CREAT, 0600); |
| 21 | |
| 22 | if (ftruncate(fd, (off_t) sz) < 0) |
| 23 | die_errno("failed to truncate file"); |
| 24 | |
| 25 | close(fd); |
| 26 | |
| 27 | return 0; |
| 28 | } |