diff options
| -rw-r--r-- | tools/firmware-utils/src/trx.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/tools/firmware-utils/src/trx.c b/tools/firmware-utils/src/trx.c index 728deac37f..44bd06a068 100644 --- a/tools/firmware-utils/src/trx.c +++ b/tools/firmware-utils/src/trx.c @@ -83,7 +83,7 @@ void usage(void) __attribute__ (( __noreturn__ )); void usage(void) { fprintf(stderr, "Usage:\n"); - fprintf(stderr, " trx [-2] [-o outfile] [-m maxlen] [-a align] [-b offset] \\\n"); + fprintf(stderr, " trx [-2] [-o outfile] [-m maxlen] [-a align] [-b absolute offset] [-x relative offset]\n"); fprintf(stderr, " [-f file] [-f file [-f file [-f file (v2 only)]]]\n"); exit(EXIT_FAILURE); } @@ -97,6 +97,7 @@ int main(int argc, char **argv) char *e; int c, i, append = 0; size_t n; + ssize_t n2; uint32_t cur_len; unsigned long maxlen = TRX_MAX_LEN; struct trx_header *p; @@ -118,7 +119,7 @@ int main(int argc, char **argv) in = NULL; i = 0; - while ((c = getopt(argc, argv, "-:2o:m:a:b:f:A:")) != -1) { + while ((c = getopt(argc, argv, "-:2o:m:a:x:b:f:A:")) != -1) { switch (c) { case '2': /* take care that nothing was written to buf so far */ @@ -219,6 +220,25 @@ int main(int argc, char **argv) cur_len = n; } break; + case 'x': + errno = 0; + n2 = strtol(optarg, &e, 0); + if (errno || (e == optarg) || *e) { + fprintf(stderr, "illegal numeric string\n"); + usage(); + } + if (n2 < 0) { + if (-n2 > cur_len) { + fprintf(stderr, "WARNING: current length smaller then -x %d offset\n",n2); + cur_len = 0; + } else + cur_len += n2; + } else { + memset(buf + cur_len, 0, n2); + cur_len += n2; + } + + break; default: usage(); } |