From f007a508253164c0959f15b8f0ad4779f4f4ba7a Mon Sep 17 00:00:00 2001 From: Markus Wigge Date: Thu, 1 Jul 2010 10:40:22 +0000 Subject: [PATCH] preset stable and try* flags for TRX2 headers * changed addpattern.c to preset the stable and try flags used in TRXv2 images to dupe CFE and pretend a stable image. * changed trx.c to calculate TRXv2 CRC with stable and try flags set to 0xFF like CFE does on startup * fixed compile warnings in trx.c by explicit casting SVN-Revision: 22012 --- src/addpattern.c | 6 ++++-- src/trx.c | 20 ++++++++++++++++++-- 2 files changed, 22 insertions(+), 4 deletions(-) diff --git a/src/addpattern.c b/src/addpattern.c index 6eccb1b..da6797c 100644 --- a/src/addpattern.c +++ b/src/addpattern.c @@ -205,8 +205,10 @@ int main(int argc, char **argv) break; case '5': /* V5 is appended to trxV2 image */ - hdr->stable[0] = hdr->stable[1] = 0xFF; - hdr->try1[0] = hdr->try1[1] = 0xFF; + hdr->stable[0] = 0x73; // force image to be stable + hdr->stable[1] = 0x00; + hdr->try1[0] = 0x74; // force try1 to be set + hdr->try1[1] = 0x00; hdr->try2[0] = hdr->try2[1] = 0xFF; hdr->try3[0] = hdr->try3[1] = 0xFF; break; diff --git a/src/trx.c b/src/trx.c index fbae789..7a64cfd 100644 --- a/src/trx.c +++ b/src/trx.c @@ -102,6 +102,7 @@ int main(int argc, char **argv) unsigned long maxlen = TRX_MAX_LEN; struct trx_header *p; char trx_version = 1; + unsigned char binheader[32]; fprintf(stderr, "mjn3's trx replacement - v0.81.1\n"); @@ -213,7 +214,7 @@ int main(int argc, char **argv) usage(); } if (n < cur_len) { - fprintf(stderr, "WARNING: current length exceeds -b %d offset\n",n); + fprintf(stderr, "WARNING: current length exceeds -b %d offset\n",(int) n); } else { memset(buf + cur_len, 0, n - cur_len); cur_len = n; @@ -228,7 +229,7 @@ int main(int argc, char **argv) } if (n2 < 0) { if (-n2 > cur_len) { - fprintf(stderr, "WARNING: current length smaller then -x %d offset\n",n2); + fprintf(stderr, "WARNING: current length smaller then -x %d offset\n",(int) n2); cur_len = 0; } else cur_len += n2; @@ -257,12 +258,27 @@ int main(int argc, char **argv) cur_len += ROUND - n; } + /* for TRXv2 set bin-header Flags to 0xFF for CRC calculation like CFE does */ + if (trx_version == 2) { + if(cur_len - p->offsets[3] < sizeof(binheader)) { + fprintf(stderr, "TRXv2 binheader too small!\n"); + return EXIT_FAILURE; + } + memcpy(binheader, buf + p->offsets[3], sizeof(binheader)); /* save header */ + memset(buf + p->offsets[3] + 22, 0xFF, 8); /* set stable and try1-3 to 0xFF */ + } + p->crc32 = crc32buf((char *) &p->flag_version, cur_len - offsetof(struct trx_header, flag_version)); p->crc32 = STORE32_LE(p->crc32); p->len = STORE32_LE(cur_len); + /* restore TRXv2 bin-header */ + if (trx_version == 2) { + memcpy(buf + p->offsets[3], binheader, sizeof(binheader)); + } + if (!fwrite(buf, cur_len, 1, out) || fflush(out)) { fprintf(stderr, "fwrite failed\n"); return EXIT_FAILURE; -- 2.30.2