X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/08e8737994db7654157be36585c43c563b2a6735..cec23da75a4f97634d64584d28f83a85b92b2dae:/tools/firmware-utils/src/trx2edips.c?ds=sidebyside diff --git a/tools/firmware-utils/src/trx2edips.c b/tools/firmware-utils/src/trx2edips.c index 9606bd851..f8d068d50 100644 --- a/tools/firmware-utils/src/trx2edips.c +++ b/tools/firmware-utils/src/trx2edips.c @@ -5,6 +5,17 @@ #include #include #include + +#if __BYTE_ORDER == __BIG_ENDIAN +#define STORE32_LE(X) bswap_32(X) +#define LOAD32_LE(X) bswap_32(X) +#elif __BYTE_ORDER == __LITTLE_ENDIAN +#define STORE32_LE(X) (X) +#define LOAD32_LE(X) (X) +#else +#error unkown endianness! +#endif + /**********************************************************************/ /* from trxhdr.h */ @@ -22,9 +33,15 @@ struct trx_header { }; +struct edimax_header { + uint32_t sign; /* signature for header */ + uint32_t length; /* start address but doesn't seems to be used... */ + uint32_t start_addr; /* length of data, not used too ...*/ +}; + -#define EDIMAX_PS16 0x36315350 -#define EDIMAX_HDR_LEN 0xc +#define EDIMAX_PS16 0x36315350 /* "PS16" */ +#define EDIMAX_HDR_LEN 0xc /**********************************************************************/ @@ -93,16 +110,13 @@ int main(int argc, char *argv[]) { FILE *fpIn = NULL; FILE *fpOut = NULL; - long nImgSize; - uint32_t sign = EDIMAX_PS16; /* signature for header */ - uint32_t start_addr = 0x80500000; /* start address but doesn't seems to be used... */ - uint32_t length; /* length of data, not used too ...*/ + struct edimax_header eh; size_t res; + int length; char *buf; struct trx_header *p; - if (argc != 3) { printf("Usage: %s \n", argv[0]); return -1; @@ -113,21 +127,23 @@ int main(int argc, char *argv[]) fprintf(stderr, "Unable to open %s\n", argv[1]); return EXIT_FAILURE; } + /* compute the length of the file */ fseek(fpIn, 0, SEEK_END); length = ftell(fpIn); - + /* alloc enough memory to store the file */ buf = (char *)malloc(length); if (!buf) { fprintf(stderr, "malloc of buffers failed\n"); return EXIT_FAILURE; } - + rewind(fpIn); + /* read the whole file*/ res = fread(buf, 1, length, fpIn); p = (struct trx_header *)buf; - if (p->magic != TRX_MAGIC) { - fprintf(stderr, "Not a trx file...%x\n", p->magic); + if (LOAD32_LE(p->magic) != TRX_MAGIC) { + fprintf(stderr, "Not a trx file...%x\n", LOAD32_LE(p->magic)); return EXIT_FAILURE; } @@ -139,12 +155,16 @@ int main(int argc, char *argv[]) return EXIT_FAILURE; } /* make the 3 partition beeing 12 bytes closer from the header */ - memcpy(buf + p->offsets[2] - EDIMAX_HDR_LEN, buf + p->offsets[2], length - p->offsets[2]); - p->crc32 = crc32buf((char *) &p->flag_version, length - offsetof(struct trx_header, flag_version)); + memcpy(buf + LOAD32_LE(p->offsets[2]) - EDIMAX_HDR_LEN, buf + LOAD32_LE(p->offsets[2]), length - LOAD32_LE(p->offsets[2])); + /* recompute the crc32 check */ + p->crc32 = STORE32_LE(crc32buf((char *) &p->flag_version, length - offsetof(struct trx_header, flag_version))); + + eh.sign = STORE32_LE(EDIMAX_PS16); + eh.length = STORE32_LE(length); + eh.start_addr = STORE32_LE(0x80500000); - fwrite(&sign, sizeof(long), 1, fpOut); - fwrite(&length, sizeof(long), 1, fpOut); - fwrite(&start_addr, sizeof(long), 1, fpOut); + /* write the modified file */ + fwrite(&eh, sizeof(struct edimax_header), 1, fpOut); fwrite(buf, sizeof(char), length, fpOut); fclose(fpOut); }