diff options
Diffstat (limited to 'utils/cattbl.c')
| -rw-r--r-- | utils/cattbl.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/utils/cattbl.c b/utils/cattbl.c index 99a7349..d7505ed 100644 --- a/utils/cattbl.c +++ b/utils/cattbl.c @@ -17,6 +17,7 @@ #include <err.h> #include <errno.h> #include <limits.h> +#include <stdbool.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> @@ -34,6 +35,7 @@ putuint32BE(uint32_t n, FILE *f) int main(int argc, char *argv[]) { + bool efflag; int i, runsum, numptrs; long size; uint32_t *ptrs, *runsums; @@ -42,7 +44,15 @@ main(int argc, char *argv[]) char *ep; if (argc < 3) { - errx(1, "Usage: cattbl size file ..."); + errx(1, "Usage: cattbl [-f] size file ..."); + } + + if (strcmp(argv[1], "-f") == 0) { + efflag = true; + argv += 1; + argc -= 1; + } else { + efflag = false; } size = strtol(argv[1], &ep, 0); @@ -61,7 +71,11 @@ main(int argc, char *argv[]) runsums = reallocarray(NULL, argc, sizeof *runsums); numptrs = 0; - putuint32BE(0, stdout); + if (efflag) { + putuint32BE(0xef, stdout); + } else { + putuint32BE(0, stdout); + } putuint32BE(0, stdout); runsum = 16 + 16 * (argc); |