2 * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
4 * This tool was based on:
5 * TP-Link WR941 V2 firmware checksum fixing tool.
6 * Copyright (C) 2008,2009 Wang Jian <lark@linux.net.cn>
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License version 2 as published
10 * by the Free Software Foundation.
18 #include <unistd.h> /* for unlink() */
20 #include <getopt.h> /* for getopt() */
25 #include <arpa/inet.h>
26 #include <netinet/in.h>
30 #define ALIGN(x,a) ({ typeof(a) __a = (a); (((x) + __a - 1) & ~(__a - 1)); })
32 #define HEADER_VERSION_V1 0x01000000
33 #define HWID_TL_MR10U_V1 0x00100101
34 #define HWID_TL_MR13U_V1 0x00130101
35 #define HWID_TL_MR3020_V1 0x30200001
36 #define HWID_TL_MR3220_V1 0x32200001
37 #define HWID_TL_MR3220_V2 0x32200002
38 #define HWID_TL_MR3420_V1 0x34200001
39 #define HWID_TL_MR3420_V2 0x34200002
40 #define HWID_TL_WA701N_V1 0x07010001
41 #define HWID_TL_WA7510N_V1 0x75100001
42 #define HWID_TL_WA801ND_V1 0x08010001
43 #define HWID_TL_WA830RE_V1 0x08300010
44 #define HWID_TL_WA830RE_V2 0x08300002
45 #define HWID_TL_WA801ND_V2 0x08010002
46 #define HWID_TL_WA901ND_V1 0x09010001
47 #define HWID_TL_WA901ND_V2 0x09010002
48 #define HWID_TL_WDR4900_V1 0x49000001
49 #define HWID_TL_WR703N_V1 0x07030101
50 #define HWID_TL_WR720N_V3 0x07200103
51 #define HWID_TL_WR741ND_V1 0x07410001
52 #define HWID_TL_WR741ND_V4 0x07410004
53 #define HWID_TL_WR740N_V1 0x07400001
54 #define HWID_TL_WR740N_V3 0x07400003
55 #define HWID_TL_WR743ND_V1 0x07430001
56 #define HWID_TL_WR743ND_V2 0x07430002
57 #define HWID_TL_WR841N_V1_5 0x08410002
58 #define HWID_TL_WR841ND_V3 0x08410003
59 #define HWID_TL_WR841ND_V5 0x08410005
60 #define HWID_TL_WR841ND_V7 0x08410007
61 #define HWID_TL_WR941ND_V2 0x09410002
62 #define HWID_TL_WR941ND_V4 0x09410004
63 #define HWID_TL_WR1043ND_V1 0x10430001
64 #define HWID_TL_WR1043ND_V2 0x10430002
65 #define HWID_TL_WR1041N_V2 0x10410002
66 #define HWID_TL_WR2543N_V1 0x25430001
71 char *file_name; /* name of the file */
72 uint32_t file_size; /* length of the file */
76 uint32_t version; /* header version */
79 uint32_t hw_id; /* hardware id */
80 uint32_t hw_rev; /* hardware revision */
82 uint8_t md5sum1[MD5SUM_LEN];
84 uint8_t md5sum2[MD5SUM_LEN];
86 uint32_t kernel_la; /* kernel load address */
87 uint32_t kernel_ep; /* kernel entry point */
88 uint32_t fw_length; /* total length of the firmware */
89 uint32_t kernel_ofs; /* kernel data offset */
90 uint32_t kernel_len; /* kernel data length */
91 uint32_t rootfs_ofs; /* rootfs data offset */
92 uint32_t rootfs_len; /* rootfs data length */
93 uint32_t boot_ofs; /* bootloader data offset */
94 uint32_t boot_len; /* bootloader data length */
99 } __attribute__ ((packed));
101 struct flash_layout {
120 static char *progname;
121 static char *vendor = "TP-LINK Technologies";
122 static char *version = "ver. 1.0";
123 static char *fw_ver = "0.0.0";
125 static char *board_id;
126 static struct board_info *board;
127 static char *layout_id;
128 static struct flash_layout *layout;
129 static char *opt_hw_id;
130 static uint32_t hw_id;
131 static char *opt_hw_rev;
132 static uint32_t hw_rev;
133 static int fw_ver_lo;
134 static int fw_ver_mid;
135 static int fw_ver_hi;
136 static struct file_info kernel_info;
137 static uint32_t kernel_la = 0;
138 static uint32_t kernel_ep = 0;
139 static uint32_t kernel_len = 0;
140 static struct file_info rootfs_info;
141 static uint32_t rootfs_ofs = 0;
142 static uint32_t rootfs_align;
143 static struct file_info boot_info;
145 static int strip_padding;
146 static int add_jffs2_eof;
147 static unsigned char jffs2_eof_mark[4] = {0xde, 0xad, 0xc0, 0xde};
149 static struct file_info inspect_info;
150 static int extract = 0;
152 char md5salt_normal[MD5SUM_LEN] = {
153 0xdc, 0xd7, 0x3a, 0xa5, 0xc3, 0x95, 0x98, 0xfb,
154 0xdd, 0xf9, 0xe7, 0xf4, 0x0e, 0xae, 0x47, 0x38,
157 char md5salt_boot[MD5SUM_LEN] = {
158 0x8c, 0xef, 0x33, 0x5b, 0xd5, 0xc5, 0xce, 0xfa,
159 0xa7, 0x9c, 0x28, 0xda, 0xb2, 0xe9, 0x0f, 0x42,
162 static struct flash_layout layouts[] = {
165 .fw_max_len = 0x3c0000,
166 .kernel_la = 0x80060000,
167 .kernel_ep = 0x80060000,
168 .rootfs_ofs = 0x140000,
171 .fw_max_len = 0x3c0000,
172 .kernel_la = 0x80060000,
173 .kernel_ep = 0x80060000,
174 .rootfs_ofs = 0x100000,
177 .fw_max_len = 0x7c0000,
178 .kernel_la = 0x80060000,
179 .kernel_ep = 0x80060000,
180 .rootfs_ofs = 0x140000,
183 .fw_max_len = 0x7c0000,
184 .kernel_la = 0x80060000,
185 .kernel_ep = 0x80060000,
186 .rootfs_ofs = 0x100000,
189 .fw_max_len = 0xf80000,
190 .kernel_la = 0x00000000,
191 .kernel_ep = 0xc0000000,
192 .rootfs_ofs = 0x2a0000,
194 /* terminating entry */
198 static struct board_info boards[] = {
201 .hw_id = HWID_TL_MR10U_V1,
203 .layout_id = "4Mlzma",
206 .hw_id = HWID_TL_MR13U_V1,
208 .layout_id = "4Mlzma",
211 .hw_id = HWID_TL_MR3020_V1,
213 .layout_id = "4Mlzma",
216 .hw_id = HWID_TL_MR3220_V1,
221 .hw_id = HWID_TL_MR3220_V2,
223 .layout_id = "4Mlzma",
226 .hw_id = HWID_TL_MR3420_V1,
231 .hw_id = HWID_TL_MR3420_V2,
233 .layout_id = "4Mlzma",
236 .hw_id = HWID_TL_WA701N_V1,
241 .hw_id = HWID_TL_WA7510N_V1,
245 .id = "TL-WA801NDv1",
246 .hw_id = HWID_TL_WA801ND_V1,
250 .id = "TL-WA830REv1",
251 .hw_id = HWID_TL_WA830RE_V1,
255 .id = "TL-WA830REv2",
256 .hw_id = HWID_TL_WA830RE_V2,
260 .id = "TL-WA801NDv2",
261 .hw_id = HWID_TL_WA801ND_V2,
263 .layout_id = "4Mlzma",
265 .id = "TL-WA901NDv1",
266 .hw_id = HWID_TL_WA901ND_V1,
270 .id = "TL-WA901NDv2",
271 .hw_id = HWID_TL_WA901ND_V2,
275 .id = "TL-WDR4900v1",
276 .hw_id = HWID_TL_WDR4900_V1,
278 .layout_id = "16Mppc",
280 .id = "TL-WR741NDv1",
281 .hw_id = HWID_TL_WR741ND_V1,
285 .id = "TL-WR741NDv4",
286 .hw_id = HWID_TL_WR741ND_V4,
288 .layout_id = "4Mlzma",
291 .hw_id = HWID_TL_WR740N_V1,
296 .hw_id = HWID_TL_WR740N_V3,
300 .id = "TL-WR743NDv1",
301 .hw_id = HWID_TL_WR743ND_V1,
305 .id = "TL-WR743NDv2",
306 .hw_id = HWID_TL_WR743ND_V2,
308 .layout_id = "4Mlzma",
310 .id = "TL-WR841Nv1.5",
311 .hw_id = HWID_TL_WR841N_V1_5,
315 .id = "TL-WR841NDv3",
316 .hw_id = HWID_TL_WR841ND_V3,
320 .id = "TL-WR841NDv5",
321 .hw_id = HWID_TL_WR841ND_V5,
325 .id = "TL-WR841NDv7",
326 .hw_id = HWID_TL_WR841ND_V7,
330 .id = "TL-WR941NDv2",
331 .hw_id = HWID_TL_WR941ND_V2,
335 .id = "TL-WR941NDv4",
336 .hw_id = HWID_TL_WR941ND_V4,
340 .id = "TL-WR1041Nv2",
341 .hw_id = HWID_TL_WR1041N_V2,
343 .layout_id = "4Mlzma",
345 .id = "TL-WR1043NDv1",
346 .hw_id = HWID_TL_WR1043ND_V1,
350 .id = "TL-WR1043NDv2",
351 .hw_id = HWID_TL_WR1043ND_V2,
353 .layout_id = "8Mlzma",
355 .id = "TL-WR2543Nv1",
356 .hw_id = HWID_TL_WR2543N_V1,
358 .layout_id = "8Mlzma",
361 .hw_id = HWID_TL_WR703N_V1,
363 .layout_id = "4Mlzma",
366 .hw_id = HWID_TL_WR720N_V3,
368 .layout_id = "4Mlzma",
370 /* terminating entry */
377 #define ERR(fmt, ...) do { \
379 fprintf(stderr, "[%s] *** error: " fmt "\n", \
380 progname, ## __VA_ARGS__ ); \
383 #define ERRS(fmt, ...) do { \
386 fprintf(stderr, "[%s] *** error: " fmt "\n", \
387 progname, ## __VA_ARGS__, strerror(save)); \
390 #define DBG(fmt, ...) do { \
391 fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \
394 static struct board_info *find_board(char *id)
396 struct board_info *ret;
397 struct board_info *board;
400 for (board = boards; board->id != NULL; board++){
401 if (strcasecmp(id, board->id) == 0) {
410 static struct board_info *find_board_by_hwid(uint32_t hw_id)
412 struct board_info *board;
414 for (board = boards; board->id != NULL; board++) {
415 if (hw_id == board->hw_id)
422 static struct flash_layout *find_layout(char *id)
424 struct flash_layout *ret;
425 struct flash_layout *l;
428 for (l = layouts; l->id != NULL; l++){
429 if (strcasecmp(id, l->id) == 0) {
438 static void usage(int status)
440 FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
441 struct board_info *board;
443 fprintf(stream, "Usage: %s [OPTIONS...]\n", progname);
447 " -B <board> create image for the board specified with <board>\n"
448 " -c use combined kernel image\n"
449 " -E <ep> overwrite kernel entry point with <ep> (hexval prefixed with 0x)\n"
450 " -L <la> overwrite kernel load address with <la> (hexval prefixed with 0x)\n"
451 " -H <hwid> use hardware id specified with <hwid>\n"
452 " -W <hwrev> use hardware revision specified with <hwrev>\n"
453 " -F <id> use flash layout specified with <id>\n"
454 " -k <file> read kernel image from the file <file>\n"
455 " -r <file> read rootfs image from the file <file>\n"
456 " -a <align> align the rootfs start on an <align> bytes boundary\n"
457 " -R <offset> overwrite rootfs offset with <offset> (hexval prefixed with 0x)\n"
458 " -o <file> write output to the file <file>\n"
459 " -s strip padding from the end of the image\n"
460 " -j add jffs2 end-of-filesystem markers\n"
461 " -N <vendor> set image vendor to <vendor>\n"
462 " -V <version> set image version to <version>\n"
463 " -v <version> set firmware version to <version>\n"
464 " -i <file> inspect given firmware file <file>\n"
465 " -x extract kernel and rootfs while inspecting (requires -i)\n"
466 " -h show this screen\n"
472 static int get_md5(char *data, int size, char *md5)
477 MD5_Update(&ctx, data, size);
478 MD5_Final(md5, &ctx);
481 static int get_file_stat(struct file_info *fdata)
486 if (fdata->file_name == NULL)
489 res = stat(fdata->file_name, &st);
491 ERRS("stat failed on %s", fdata->file_name);
495 fdata->file_size = st.st_size;
499 static int read_to_buf(struct file_info *fdata, char *buf)
502 int ret = EXIT_FAILURE;
504 f = fopen(fdata->file_name, "r");
506 ERRS("could not open \"%s\" for reading", fdata->file_name);
511 fread(buf, fdata->file_size, 1, f);
513 ERRS("unable to read from file \"%s\"", fdata->file_name);
525 static int check_options(void)
529 if (inspect_info.file_name) {
530 ret = get_file_stat(&inspect_info);
535 } else if (extract) {
536 ERR("no firmware for inspection specified");
540 if (board_id == NULL && opt_hw_id == NULL) {
541 ERR("either board or hardware id must be specified");
546 board = find_board(board_id);
548 ERR("unknown/unsupported board id \"%s\"", board_id);
551 if (layout_id == NULL)
552 layout_id = board->layout_id;
554 hw_id = board->hw_id;
555 hw_rev = board->hw_rev;
557 if (layout_id == NULL) {
558 ERR("flash layout is not specified");
561 hw_id = strtoul(opt_hw_id, NULL, 0);
564 hw_rev = strtoul(opt_hw_rev, NULL, 0);
569 layout = find_layout(layout_id);
570 if (layout == NULL) {
571 ERR("unknown flash layout \"%s\"", layout_id);
576 kernel_la = layout->kernel_la;
578 kernel_ep = layout->kernel_ep;
580 rootfs_ofs = layout->rootfs_ofs;
582 if (kernel_info.file_name == NULL) {
583 ERR("no kernel image specified");
587 ret = get_file_stat(&kernel_info);
591 kernel_len = kernel_info.file_size;
594 if (kernel_info.file_size >
595 layout->fw_max_len - sizeof(struct fw_header)) {
596 ERR("kernel image is too big");
600 if (rootfs_info.file_name == NULL) {
601 ERR("no rootfs image specified");
605 ret = get_file_stat(&rootfs_info);
610 kernel_len += sizeof(struct fw_header);
611 kernel_len = ALIGN(kernel_len, rootfs_align);
612 kernel_len -= sizeof(struct fw_header);
614 DBG("kernel length aligned to %u", kernel_len);
616 if (kernel_len + rootfs_info.file_size >
617 layout->fw_max_len - sizeof(struct fw_header)) {
618 ERR("images are too big");
622 if (kernel_info.file_size >
623 rootfs_ofs - sizeof(struct fw_header)) {
624 ERR("kernel image is too big");
628 if (rootfs_info.file_size >
629 (layout->fw_max_len - rootfs_ofs)) {
630 ERR("rootfs image is too big");
636 if (ofname == NULL) {
637 ERR("no output file specified");
641 ret = sscanf(fw_ver, "%d.%d.%d", &fw_ver_hi, &fw_ver_mid, &fw_ver_lo);
643 ERR("invalid firmware version '%s'", fw_ver);
650 static void fill_header(char *buf, int len)
652 struct fw_header *hdr = (struct fw_header *)buf;
654 memset(hdr, 0, sizeof(struct fw_header));
656 hdr->version = htonl(HEADER_VERSION_V1);
657 strncpy(hdr->vendor_name, vendor, sizeof(hdr->vendor_name));
658 strncpy(hdr->fw_version, version, sizeof(hdr->fw_version));
659 hdr->hw_id = htonl(hw_id);
660 hdr->hw_rev = htonl(hw_rev);
662 if (boot_info.file_size == 0)
663 memcpy(hdr->md5sum1, md5salt_normal, sizeof(hdr->md5sum1));
665 memcpy(hdr->md5sum1, md5salt_boot, sizeof(hdr->md5sum1));
667 hdr->kernel_la = htonl(kernel_la);
668 hdr->kernel_ep = htonl(kernel_ep);
669 hdr->fw_length = htonl(layout->fw_max_len);
670 hdr->kernel_ofs = htonl(sizeof(struct fw_header));
671 hdr->kernel_len = htonl(kernel_len);
673 hdr->rootfs_ofs = htonl(rootfs_ofs);
674 hdr->rootfs_len = htonl(rootfs_info.file_size);
677 hdr->ver_hi = htons(fw_ver_hi);
678 hdr->ver_mid = htons(fw_ver_mid);
679 hdr->ver_lo = htons(fw_ver_lo);
681 get_md5(buf, len, hdr->md5sum1);
684 static int pad_jffs2(char *buf, int currlen)
690 pad_mask = (64 * 1024);
691 while ((len < layout->fw_max_len) && (pad_mask != 0)) {
695 for (i = 10; i < 32; i++) {
701 len = ALIGN(len, mask);
703 for (i = 10; i < 32; i++) {
705 if ((len & (mask - 1)) == 0)
709 for (i = 0; i < sizeof(jffs2_eof_mark); i++)
710 buf[len + i] = jffs2_eof_mark[i];
712 len += sizeof(jffs2_eof_mark);
718 static int write_fw(char *data, int len)
721 int ret = EXIT_FAILURE;
723 f = fopen(ofname, "w");
725 ERRS("could not open \"%s\" for writing", ofname);
730 fwrite(data, len, 1, f);
732 ERRS("unable to write output file");
736 DBG("firmware file \"%s\" completed", ofname);
743 if (ret != EXIT_SUCCESS) {
750 static int build_fw(void)
755 int ret = EXIT_FAILURE;
758 buflen = layout->fw_max_len;
760 buf = malloc(buflen);
762 ERR("no memory for buffer\n");
766 memset(buf, 0xff, buflen);
767 p = buf + sizeof(struct fw_header);
768 ret = read_to_buf(&kernel_info, p);
772 writelen = sizeof(struct fw_header) + kernel_len;
778 p = buf + rootfs_ofs;
780 ret = read_to_buf(&rootfs_info, p);
785 writelen += rootfs_info.file_size;
787 writelen = rootfs_ofs + rootfs_info.file_size;
790 writelen = pad_jffs2(buf, writelen);
796 fill_header(buf, writelen);
797 ret = write_fw(buf, writelen);
809 /* Helper functions to inspect_fw() representing different output formats */
810 static inline void inspect_fw_pstr(char *label, char *str)
812 printf("%-23s: %s\n", label, str);
815 static inline void inspect_fw_phex(char *label, uint32_t val)
817 printf("%-23s: 0x%08x\n", label, val);
820 static inline void inspect_fw_phexpost(char *label,
821 uint32_t val, char *post)
823 printf("%-23s: 0x%08x (%s)\n", label, val, post);
826 static inline void inspect_fw_phexdef(char *label,
827 uint32_t val, uint32_t defval)
829 printf("%-23s: 0x%08x ", label, val);
832 printf("(== OpenWrt default)\n");
834 printf("(OpenWrt default: 0x%08x)\n", defval);
837 static inline void inspect_fw_phexexp(char *label,
838 uint32_t val, uint32_t expval)
840 printf("%-23s: 0x%08x ", label, val);
845 printf("(expected: 0x%08x)\n", expval);
848 static inline void inspect_fw_phexdec(char *label, uint32_t val)
850 printf("%-23s: 0x%08x / %8u bytes\n", label, val, val);
853 static inline void inspect_fw_phexdecdef(char *label,
854 uint32_t val, uint32_t defval)
856 printf("%-23s: 0x%08x / %8u bytes ", label, val, val);
859 printf("(== OpenWrt default)\n");
861 printf("(OpenWrt default: 0x%08x)\n", defval);
864 static inline void inspect_fw_pmd5sum(char *label, uint8_t *val, char *text)
868 printf("%-23s:", label);
869 for (i=0; i<MD5SUM_LEN; i++)
870 printf(" %02x", val[i]);
871 printf(" %s\n", text);
874 static int inspect_fw(void)
877 struct fw_header *hdr;
878 uint8_t md5sum[MD5SUM_LEN];
879 struct board_info *board;
880 int ret = EXIT_FAILURE;
882 buf = malloc(inspect_info.file_size);
884 ERR("no memory for buffer!\n");
888 ret = read_to_buf(&inspect_info, buf);
891 hdr = (struct fw_header *)buf;
893 inspect_fw_pstr("File name", inspect_info.file_name);
894 inspect_fw_phexdec("File size", inspect_info.file_size);
896 if (ntohl(hdr->version) != HEADER_VERSION_V1) {
897 ERR("file does not seem to have V1 header!\n");
901 inspect_fw_phexdec("Version 1 Header size", sizeof(struct fw_header));
903 if (ntohl(hdr->unk1) != 0)
904 inspect_fw_phexdec("Unknown value 1", hdr->unk1);
906 memcpy(md5sum, hdr->md5sum1, sizeof(md5sum));
907 if (ntohl(hdr->boot_len) == 0)
908 memcpy(hdr->md5sum1, md5salt_normal, sizeof(md5sum));
910 memcpy(hdr->md5sum1, md5salt_boot, sizeof(md5sum));
911 get_md5(buf, inspect_info.file_size, hdr->md5sum1);
913 if (memcmp(md5sum, hdr->md5sum1, sizeof(md5sum))) {
914 inspect_fw_pmd5sum("Header MD5Sum1", md5sum, "(*ERROR*)");
915 inspect_fw_pmd5sum(" --> expected", hdr->md5sum1, "");
917 inspect_fw_pmd5sum("Header MD5Sum1", md5sum, "(ok)");
919 if (ntohl(hdr->unk2) != 0)
920 inspect_fw_phexdec("Unknown value 2", hdr->unk2);
921 inspect_fw_pmd5sum("Header MD5Sum2", hdr->md5sum2,
922 "(purpose yet unknown, unchecked here)");
923 if (ntohl(hdr->unk3) != 0)
924 inspect_fw_phexdec("Unknown value 3", hdr->unk3);
928 inspect_fw_pstr("Vendor name", hdr->vendor_name);
929 inspect_fw_pstr("Firmware version", hdr->fw_version);
930 board = find_board_by_hwid(ntohl(hdr->hw_id));
932 layout = find_layout(board->layout_id);
933 inspect_fw_phexpost("Hardware ID",
934 ntohl(hdr->hw_id), board->id);
935 inspect_fw_phexexp("Hardware Revision",
936 ntohl(hdr->hw_rev), board->hw_rev);
938 inspect_fw_phexpost("Hardware ID",
939 ntohl(hdr->hw_id), "unknown");
940 inspect_fw_phex("Hardware Revision",
946 inspect_fw_phexdec("Kernel data offset",
947 ntohl(hdr->kernel_ofs));
948 inspect_fw_phexdec("Kernel data length",
949 ntohl(hdr->kernel_len));
951 inspect_fw_phexdef("Kernel load address",
952 ntohl(hdr->kernel_la),
953 layout ? layout->kernel_la : 0xffffffff);
954 inspect_fw_phexdef("Kernel entry point",
955 ntohl(hdr->kernel_ep),
956 layout ? layout->kernel_ep : 0xffffffff);
957 inspect_fw_phexdecdef("Rootfs data offset",
958 ntohl(hdr->rootfs_ofs),
959 layout ? layout->rootfs_ofs : 0xffffffff);
961 inspect_fw_phex("Kernel load address",
962 ntohl(hdr->kernel_la));
963 inspect_fw_phex("Kernel entry point",
964 ntohl(hdr->kernel_ep));
965 inspect_fw_phexdec("Rootfs data offset",
966 ntohl(hdr->rootfs_ofs));
968 inspect_fw_phexdec("Rootfs data length",
969 ntohl(hdr->rootfs_len));
970 inspect_fw_phexdec("Boot loader data offset",
971 ntohl(hdr->boot_ofs));
972 inspect_fw_phexdec("Boot loader data length",
973 ntohl(hdr->boot_len));
974 inspect_fw_phexdec("Total firmware length",
975 ntohl(hdr->fw_length));
983 filename = malloc(strlen(inspect_info.file_name) + 8);
984 sprintf(filename, "%s-kernel", inspect_info.file_name);
985 printf("Extracting kernel to \"%s\"...\n", filename);
986 fp = fopen(filename, "w");
988 if (!fwrite(buf + ntohl(hdr->kernel_ofs),
989 ntohl(hdr->kernel_len), 1, fp)) {
990 ERR("error in fwrite(): %s", strerror(errno));
994 ERR("error in fopen(): %s", strerror(errno));
998 filename = malloc(strlen(inspect_info.file_name) + 8);
999 sprintf(filename, "%s-rootfs", inspect_info.file_name);
1000 printf("Extracting rootfs to \"%s\"...\n", filename);
1001 fp = fopen(filename, "w");
1003 if (!fwrite(buf + ntohl(hdr->rootfs_ofs),
1004 ntohl(hdr->rootfs_len), 1, fp)) {
1005 ERR("error in fwrite(): %s", strerror(errno));
1009 ERR("error in fopen(): %s", strerror(errno));
1020 int main(int argc, char *argv[])
1022 int ret = EXIT_FAILURE;
1027 progname = basename(argv[0]);
1032 c = getopt(argc, argv, "a:B:H:E:F:L:V:N:W:ci:k:r:R:o:xhsjv:");
1038 sscanf(optarg, "0x%x", &rootfs_align);
1047 sscanf(optarg, "0x%x", &kernel_ep);
1053 opt_hw_rev = optarg;
1056 sscanf(optarg, "0x%x", &kernel_la);
1071 kernel_info.file_name = optarg;
1074 rootfs_info.file_name = optarg;
1077 sscanf(optarg, "0x%x", &rootfs_ofs);
1086 inspect_info.file_name = optarg;
1095 usage(EXIT_SUCCESS);
1098 usage(EXIT_FAILURE);
1103 ret = check_options();
1107 if (!inspect_info.file_name)