diff options
Diffstat (limited to 'package/system/mtd/src/mtd.c')
| -rw-r--r-- | package/system/mtd/src/mtd.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/package/system/mtd/src/mtd.c b/package/system/mtd/src/mtd.c index a660486..2ec02a8 100644 --- a/package/system/mtd/src/mtd.c +++ b/package/system/mtd/src/mtd.c @@ -55,6 +55,7 @@ int quiet; int no_erase; int mtdsize = 0; int erasesize = 0; +int jffs2_skip_bytes=0; int mtd_open(const char *mtd, bool block) { @@ -339,7 +340,6 @@ resume: fprintf(stderr, "Could not open mtd device: %s\n", mtd); exit(1); } - if (part_offset > 0) { fprintf(stderr, "Seeking on mtd device '%s' to: %u\n", mtd, part_offset); lseek(fd, part_offset, SEEK_SET); @@ -379,7 +379,7 @@ resume: continue; } - if (jffs2file) { + if (jffs2file && w >= jffs2_skip_bytes) { if (memcmp(buf, JFFS2_EOF, sizeof(JFFS2_EOF) - 1) == 0) { if (!quiet) fprintf(stderr, "\b\b\b "); @@ -503,6 +503,7 @@ static void usage(void) " -e <device> erase <device> before executing the command\n" " -d <name> directory for jffs2write, defaults to \"tmp\"\n" " -j <name> integrate <file> into jffs2 data when writing an image\n" + " -s <number> skip the first n bytes when appending data to the jffs2 partiton, defaults to \"0\"\n" " -p write beginning at partition offset\n"); if (mtd_fixtrx) { fprintf(stderr, @@ -560,7 +561,7 @@ int main (int argc, char **argv) #ifdef FIS_SUPPORT "F:" #endif - "frnqe:d:j:p:o:")) != -1) + "frnqe:d:s:j:p:o:")) != -1) switch (ch) { case 'f': force = 1; @@ -574,6 +575,14 @@ int main (int argc, char **argv) case 'j': jffs2file = optarg; break; + case 's': + errno = 0; + jffs2_skip_bytes = strtoul(optarg, 0, 0); + if (errno) { + fprintf(stderr, "-s: illegal numeric string\n"); + usage(); + } + break; case 'q': quiet++; break; |