diff options
Diffstat (limited to 'obsolete-buildroot/sources/openwrt/tools')
| -rw-r--r-- | obsolete-buildroot/sources/openwrt/tools/addpattern.c | 202 | ||||
| -rw-r--r-- | obsolete-buildroot/sources/openwrt/tools/sstrip.c | 483 | ||||
| -rw-r--r-- | obsolete-buildroot/sources/openwrt/tools/trx.c | 334 |
3 files changed, 0 insertions, 1019 deletions
diff --git a/obsolete-buildroot/sources/openwrt/tools/addpattern.c b/obsolete-buildroot/sources/openwrt/tools/addpattern.c deleted file mode 100644 index b32ab9f49f..0000000000 --- a/obsolete-buildroot/sources/openwrt/tools/addpattern.c +++ /dev/null @@ -1,202 +0,0 @@ -/* - * Copyright (C) 2004 Manuel Novoa III <mjn3@codepoet.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/* July 29, 2004 - * - * This is a hacked replacement for the 'addpattern' utility used to - * create wrt54g .bin firmware files. It isn't pretty, but it does - * the job for me. - * - * Extensions: - * -v allows setting the version string on the command line. - * -{0|1} sets the (currently ignored) hw_ver flag in the header - * to 0 or 1 respectively. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> -#include <unistd.h> -#include <sys/stat.h> - -/**********************************************************************/ - -#define CODE_ID "U2ND" /* from code_pattern.h */ -#define CODE_PATTERN "W54S" /* from code_pattern.h */ - -#define CYBERTAN_VERSION "v2.07.1" /* from cyutils.h */ -/* #define CYBERTAN_VERSION "v2.04.3" */ - -struct code_header { /* from cyutils.h */ - char magic[4]; - char res1[4]; /* for extra magic */ - char fwdate[3]; - char fwvern[3]; - char id[4]; /* U2ND */ -#if 0 - unsigned char res2[14]; -#else - char hw_ver; /* 0: for 4702, 1: for 4712 -- new in 2.04.3 */ - unsigned char res2[13]; -#endif -} ; - -/**********************************************************************/ - -void usage(void) __attribute__ (( __noreturn__ )); - -void usage(void) -{ - fprintf(stderr, "Usage: addpattern [-i trxfile] [-o binfile] [-p pattern] [-g] [-v v#.#.#] [-{0|1}]\n"); - exit(EXIT_FAILURE); -} - -int main(int argc, char **argv) -{ - char buf[1024]; /* keep this at 1k or adjust garbage calc below */ - struct code_header *hdr; - FILE *in = stdin; - FILE *out = stdout; - char *ifn = NULL; - char *ofn = NULL; - char *pattern = CODE_PATTERN; - char *version = CYBERTAN_VERSION; - int gflag = 0; - int c; - int v0, v1, v2; - size_t off, n; - time_t t; - struct tm *ptm; - - fprintf(stderr, "mjn3's addpattern replacement - v0.81\n"); - - hdr = (struct code_header *) buf; - - while ((c = getopt(argc, argv, "i:o:p:gv:01")) != -1) { - switch (c) { - case 'i': - ifn = optarg; - break; - case 'o': - ofn = optarg; - break; - case 'p': - pattern = optarg; - break; - case 'g': - gflag = 1; - break; - case 'v': /* extension to allow setting version */ - version = optarg; - break; - case '0': - hdr->hw_ver = 0; - break; - case '1': - hdr->hw_ver = 1; - break; - default: - usage(); - } - } - - if (optind != argc) { - fprintf(stderr, "illegal arg \"%s\"\n", argv[optind]); - usage(); - } - - if (strlen(pattern) != 4) { - fprintf(stderr, "illegal pattern \"%s\": length != 4\n", pattern); - usage(); - } - - if (ifn && !(in = fopen(ifn, "r"))) { - fprintf(stderr, "can not open \"%s\" for reading\n", ifn); - usage(); - } - - if (ofn && !(out = fopen(ofn, "w"))) { - fprintf(stderr, "can not open \"%s\" for writing\n", ofn); - usage(); - } - - if (time(&t) == (time_t)(-1)) { - fprintf(stderr, "time call failed\n"); - return EXIT_FAILURE; - } - - ptm = localtime(&t); - - if (3 != sscanf(version, "v%d.%d.%d", &v0, &v1, &v2)) { - fprintf(stderr, "bad version string \"%s\"\n", version); - return EXIT_FAILURE; - } - - memset(hdr, 0, sizeof(struct code_header)); - memcpy(&hdr->magic, pattern, 4); - hdr->fwdate[0] = ptm->tm_year % 100; - hdr->fwdate[1] = ptm->tm_mon + 1; - hdr->fwdate[2] = ptm->tm_mday; - hdr->fwvern[0] = v0; - hdr->fwvern[1] = v1; - hdr->fwvern[2] = v2; - memcpy(&hdr->id, CODE_ID, strlen(CODE_ID)); - - off = sizeof(struct code_header); - - fprintf(stderr, "writing firmware v%d.%d.%d on %d/%d/%d (y/m/d)\n", - v0, v1, v2, - hdr->fwdate[0], hdr->fwdate[1], hdr->fwdate[2]); - - - while ((n = fread(buf + off, 1, sizeof(buf)-off, in) + off) > 0) { - off = 0; - if (n < sizeof(buf)) { - if (ferror(in)) { - FREAD_ERROR: - fprintf(stderr, "fread error\n"); - return EXIT_FAILURE; - } - if (gflag) { - gflag = sizeof(buf) - n; - memset(buf + n, 0xff, gflag); - fprintf(stderr, "adding %d bytes of garbage\n", gflag); - n = sizeof(buf); - } - } - if (!fwrite(buf, n, 1, out)) { - FWRITE_ERROR: - fprintf(stderr, "fwrite error\n"); - return EXIT_FAILURE; - } - } - - if (ferror(in)) { - goto FREAD_ERROR; - } - - if (fflush(out)) { - goto FWRITE_ERROR; - } - - fclose(in); - fclose(out); - - return EXIT_SUCCESS; -} diff --git a/obsolete-buildroot/sources/openwrt/tools/sstrip.c b/obsolete-buildroot/sources/openwrt/tools/sstrip.c deleted file mode 100644 index e820a44b88..0000000000 --- a/obsolete-buildroot/sources/openwrt/tools/sstrip.c +++ /dev/null @@ -1,483 +0,0 @@ -/* http://www.muppetlabs.com/~breadbox/software/elfkickers.html */ - -/* sstrip: Copyright (C) 1999-2001 by Brian Raiter, under the GNU - * General Public License. No warranty. See COPYING for details. - * - * Aug 23, 2004 Hacked by Manuel Novoa III <mjn3@codepoet.org> to - * handle targets of different endianness and/or elf class, making - * it more useful in a cross-devel environment. - */ - -/* ============== original README =================== - * - * sstrip is a small utility that removes the contents at the end of an - * ELF file that are not part of the program's memory image. - * - * Most ELF executables are built with both a program header table and a - * section header table. However, only the former is required in order - * for the OS to load, link and execute a program. sstrip attempts to - * extract the ELF header, the program header table, and its contents, - * leaving everything else in the bit bucket. It can only remove parts of - * the file that occur at the end, after the parts to be saved. However, - * this almost always includes the section header table, and occasionally - * a few random sections that are not used when running a program. - * - * It should be noted that the GNU bfd library is (understandably) - * dependent on the section header table as an index to the file's - * contents. Thus, an executable file that has no section header table - * cannot be used with gdb, objdump, or any other program based upon the - * bfd library, at all. In fact, the program will not even recognize the - * file as a valid executable. (This limitation is noted in the source - * code comments for bfd, and is marked "FIXME", so this may change at - * some future date. However, I would imagine that it is a pretty - * low-priority item, as executables without a section header table are - * rare in the extreme.) This probably also explains why strip doesn't - * offer the option to do this. - * - * Shared library files may also have their section header table removed. - * Such a library will still function; however, it will no longer be - * possible for a compiler to link a new program against it. - * - * As an added bonus, sstrip also tries to removes trailing zero bytes - * from the end of the file. (This normally cannot be done with an - * executable that has a section header table.) - * - * sstrip is a very simplistic program. It depends upon the common - * practice of putting the parts of the file that contribute to the - * memory image at the front, and the remaining material at the end. This - * permits it to discard the latter material without affecting file - * offsets and memory addresses in what remains. Of course, the ELF - * standard permits files to be organized in almost any order, so if a - * pathological linker decided to put its section headers at the top, - * sstrip would be useless on such executables. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <fcntl.h> -#include <elf.h> -#ifdef __FreeBSD__ -/** - * This seems to work on FreeBSD 5.3, should - * work on all newer versions as well. I have - * no idea if it will work on versions < 5.3 - * - * Joe Estock (guru) <jestock at nutextonline.com> - */ -#include <sys/endian.h> -#define bswap_64 __bswap64 -#define bswap_32 __bswap32 -#define bswap_16 __bswap16 -#else -#include <endian.h> -#include <byteswap.h> -#endif /* defined(__FreeBSD__) */ - - -#ifndef TRUE -#define TRUE 1 -#define FALSE 0 -#endif - -/* The name of the program. - */ -static char const *progname; - -/* The name of the current file. - */ -static char const *filename; - - -/* A simple error-handling function. FALSE is always returned for the - * convenience of the caller. - */ -static int err(char const *errmsg) -{ - fprintf(stderr, "%s: %s: %s\n", progname, filename, errmsg); - return FALSE; -} - -/* A flag to signal the need for endian reversal. - */ -static int do_reverse_endian; - -/* Get a value from the elf header, compensating for endianness. - */ -#define EGET(X) \ - (__extension__ ({ \ - uint64_t __res; \ - if (!do_reverse_endian) { \ - __res = (X); \ - } else if (sizeof(X) == 1) { \ - __res = (X); \ - } else if (sizeof(X) == 2) { \ - __res = bswap_16((X)); \ - } else if (sizeof(X) == 4) { \ - __res = bswap_32((X)); \ - } else if (sizeof(X) == 8) { \ - __res = bswap_64((X)); \ - } else { \ - fprintf(stderr, "%s: %s: EGET failed for size %d\n", \ - progname, filename, sizeof(X)); \ - exit(EXIT_FAILURE); \ - } \ - __res; \ - })) - -/* Set a value 'Y' in the elf header to 'X', compensating for endianness. - */ -#define ESET(Y,X) \ - do if (!do_reverse_endian) { \ - Y = (X); \ - } else if (sizeof(Y) == 1) { \ - Y = (X); \ - } else if (sizeof(Y) == 2) { \ - Y = bswap_16((uint16_t)(X)); \ - } else if (sizeof(Y) == 4) { \ - Y = bswap_32((uint32_t)(X)); \ - } else if (sizeof(Y) == 8) { \ - Y = bswap_64((uint64_t)(X)); \ - } else { \ - fprintf(stderr, "%s: %s: ESET failed for size %d\n", \ - progname, filename, sizeof(Y)); \ - exit(EXIT_FAILURE); \ - } while (0) - - -/* A macro for I/O errors: The given error message is used only when - * errno is not set. - */ -#define ferr(msg) (err(errno ? strerror(errno) : (msg))) - - - -#define HEADER_FUNCTIONS(CLASS) \ - \ -/* readelfheader() reads the ELF header into our global variable, and \ - * checks to make sure that this is in fact a file that we should be \ - * munging. \ - */ \ -static int readelfheader ## CLASS (int fd, Elf ## CLASS ## _Ehdr *ehdr) \ -{ \ - if (read(fd, ((char *)ehdr)+EI_NIDENT, sizeof(*ehdr) - EI_NIDENT) \ - != sizeof(*ehdr) - EI_NIDENT) \ - return ferr("missing or incomplete ELF header."); \ - \ - /* Verify the sizes of the ELF header and the program segment \ - * header table entries. \ - */ \ - if (EGET(ehdr->e_ehsize) != sizeof(Elf ## CLASS ## _Ehdr)) \ - return err("unrecognized ELF header size."); \ - if (EGET(ehdr->e_phentsize) != sizeof(Elf ## CLASS ## _Phdr)) \ - return err("unrecognized program segment header size."); \ - \ - /* Finally, check the file type. \ - */ \ - if (EGET(ehdr->e_type) != ET_EXEC && EGET(ehdr->e_type) != ET_DYN) \ - return err("not an executable or shared-object library."); \ - \ - return TRUE; \ -} \ - \ -/* readphdrtable() loads the program segment header table into memory. \ - */ \ -static int readphdrtable ## CLASS (int fd, Elf ## CLASS ## _Ehdr const *ehdr, \ - Elf ## CLASS ## _Phdr **phdrs) \ -{ \ - size_t size; \ - \ - if (!EGET(ehdr->e_phoff) || !EGET(ehdr->e_phnum) \ -) return err("ELF file has no program header table."); \ - \ - size = EGET(ehdr->e_phnum) * sizeof **phdrs; \ - if (!(*phdrs = malloc(size))) \ - return err("Out of memory!"); \ - \ - errno = 0; \ - if (read(fd, *phdrs, size) != (ssize_t)size) \ - return ferr("missing or incomplete program segment header table."); \ - \ - return TRUE; \ -} \ - \ -/* getmemorysize() determines the offset of the last byte of the file \ - * that is referenced by an entry in the program segment header table. \ - * (Anything in the file after that point is not used when the program \ - * is executing, and thus can be safely discarded.) \ - */ \ -static int getmemorysize ## CLASS (Elf ## CLASS ## _Ehdr const *ehdr, \ - Elf ## CLASS ## _Phdr const *phdrs, \ - unsigned long *newsize) \ -{ \ - Elf ## CLASS ## _Phdr const *phdr; \ - unsigned long size, n; \ - int i; \ - \ - /* Start by setting the size to include the ELF header and the \ - * complete program segment header table. \ - */ \ - size = EGET(ehdr->e_phoff) + EGET(ehdr->e_phnum) * sizeof *phdrs; \ - if (size < sizeof *ehdr) \ - size = sizeof *ehdr; \ - \ - /* Then keep extending the size to include whatever data the \ - * program segment header table references. \ - */ \ - for (i = 0, phdr = phdrs ; i < EGET(ehdr->e_phnum) ; ++i, ++phdr) { \ - if (EGET(phdr->p_type) != PT_NULL) { \ - n = EGET(phdr->p_offset) + EGET(phdr->p_filesz); \ - if (n > size) \ - size = n; \ - } \ - } \ - \ - *newsize = size; \ - return TRUE; \ -} \ - \ -/* modifyheaders() removes references to the section header table if \ - * it was stripped, and reduces program header table entries that \ - * included truncated bytes at the end of the file. \ - */ \ -static int modifyheaders ## CLASS (Elf ## CLASS ## _Ehdr *ehdr, \ - Elf ## CLASS ## _Phdr *phdrs, \ - unsigned long newsize) \ -{ \ - Elf ## CLASS ## _Phdr *phdr; \ - int i; \ - \ - /* If the section header table is gone, then remove all references \ - * to it in the ELF header. \ - */ \ - if (EGET(ehdr->e_shoff) >= newsize) { \ - ESET(ehdr->e_shoff,0); \ - ESET(ehdr->e_shnum,0); \ - ESET(ehdr->e_shentsize,0); \ - ESET(ehdr->e_shstrndx,0); \ - } \ - \ - /* The program adjusts the file size of any segment that was \ - * truncated. The case of a segment being completely stripped out \ - * is handled separately. \ - */ \ - for (i = 0, phdr = phdrs ; i < EGET(ehdr->e_phnum) ; ++i, ++phdr) { \ - if (EGET(phdr->p_offset) >= newsize) { \ - ESET(phdr->p_offset,newsize); \ - ESET(phdr->p_filesz,0); \ - } else if (EGET(phdr->p_offset) + EGET(phdr->p_filesz) > newsize) { \ - newsize -= EGET(phdr->p_offset); \ - ESET(phdr->p_filesz, newsize); \ - } \ - } \ - \ - return TRUE; \ -} \ - \ -/* commitchanges() writes the new headers back to the original file \ - * and sets the file to its new size. \ - */ \ -static int commitchanges ## CLASS (int fd, Elf ## CLASS ## _Ehdr const *ehdr, \ - Elf ## CLASS ## _Phdr *phdrs, \ - unsigned long newsize) \ -{ \ - size_t n; \ - \ - /* Save the changes to the ELF header, if any. \ - */ \ - if (lseek(fd, 0, SEEK_SET)) \ - return ferr("could not rewind file"); \ - errno = 0; \ - if (write(fd, ehdr, sizeof *ehdr) != sizeof *ehdr) \ - return err("could not modify file"); \ - \ - /* Save the changes to the program segment header table, if any. \ - */ \ - if (lseek(fd, EGET(ehdr->e_phoff), SEEK_SET) == (off_t)-1) { \ - err("could not seek in file."); \ - goto warning; \ - } \ - n = EGET(ehdr->e_phnum) * sizeof *phdrs; \ - if (write(fd, phdrs, n) != (ssize_t)n) { \ - err("could not write to file"); \ - goto warning; \ - } \ - \ - /* Eleventh-hour sanity check: don't truncate before the end of \ - * the program segment header table. \ - */ \ - if (newsize < EGET(ehdr->e_phoff) + n) \ - newsize = EGET(ehdr->e_phoff) + n; \ - \ - /* Chop off the end of the file. \ - */ \ - if (ftruncate(fd, newsize)) { \ - err("could not resize file"); \ - goto warning; \ - } \ - \ - return TRUE; \ - \ - warning: \ - return err("ELF file may have been corrupted!"); \ -} - - -/* First elements of Elf32_Ehdr and Elf64_Ehdr are common. - */ -static int readelfheaderident(int fd, Elf32_Ehdr *ehdr) -{ - errno = 0; - if (read(fd, ehdr, EI_NIDENT) != EI_NIDENT) - return ferr("missing or incomplete ELF header."); - - /* Check the ELF signature. - */ - if (!(ehdr->e_ident[EI_MAG0] == ELFMAG0 && - ehdr->e_ident[EI_MAG1] == ELFMAG1 && - ehdr->e_ident[EI_MAG2] == ELFMAG2 && - ehdr->e_ident[EI_MAG3] == ELFMAG3)) - { - err("missing ELF signature."); - return -1; - } - - /* Compare the file's class and endianness with the program's. - */ -#if __BYTE_ORDER == __LITTLE_ENDIAN - if (ehdr->e_ident[EI_DATA] == ELFDATA2LSB) { - do_reverse_endian = 0; - } else if (ehdr->e_ident[EI_DATA] == ELFDATA2MSB) { -/* fprintf(stderr, "ELF file has different endianness.\n"); */ - do_reverse_endian = 1; - } -#elif __BYTE_ORDER == __BIG_ENDIAN - if (ehdr->e_ident[EI_DATA] == ELFDATA2LSB) { -/* fprintf(stderr, "ELF file has different endianness.\n"); */ - do_reverse_endian = 1; - } else if (ehdr->e_ident[EI_DATA] == ELFDATA2MSB) { - do_reverse_endian = 0; - } -#else -#error unkown endianness -#endif - else { - err("Unsupported endianness"); - return -1; - } - - /* Check the target architecture. - */ -/* if (EGET(ehdr->e_machine) != ELF_ARCH) { */ -/* /\* return err("ELF file created for different architecture."); *\/ */ -/* fprintf(stderr, "ELF file created for different architecture.\n"); */ -/* } */ - return ehdr->e_ident[EI_CLASS]; -} - - -HEADER_FUNCTIONS(32) - -HEADER_FUNCTIONS(64) - -/* truncatezeros() examines the bytes at the end of the file's - * size-to-be, and reduces the size to exclude any trailing zero - * bytes. - */ -static int truncatezeros(int fd, unsigned long *newsize) -{ - unsigned char contents[1024]; - unsigned long size, n; - - size = *newsize; - do { - n = sizeof contents; - if (n > size) - n = size; - if (lseek(fd, size - n, SEEK_SET) == (off_t)-1) - return ferr("cannot seek in file."); - if (read(fd, contents, n) != (ssize_t)n) - return ferr("cannot read file contents"); - while (n && !contents[--n]) - --size; - } while (size && !n); - - /* Sanity check. - */ - if (!size) - return err("ELF file is completely blank!"); - - *newsize = size; - return TRUE; -} - -/* main() loops over the cmdline arguments, leaving all the real work - * to the other functions. - */ -int main(int argc, char *argv[]) -{ - int fd; - union { - Elf32_Ehdr ehdr32; - Elf64_Ehdr ehdr64; - } e; - union { - Elf32_Phdr *phdrs32; - Elf64_Phdr *phdrs64; - } p; - unsigned long newsize; - char **arg; - int failures = 0; - - if (argc < 2 || argv[1][0] == '-') { - printf("Usage: sstrip FILE...\n" - "sstrip discards all nonessential bytes from an executable.\n\n" - "Version 2.0-X Copyright (C) 2000,2001 Brian Raiter.\n" - "Cross-devel hacks Copyright (C) 2004 Manuel Novoa III.\n" - "This program is free software, licensed under the GNU\n" - "General Public License. There is absolutely no warranty.\n"); - return EXIT_SUCCESS; - } - - progname = argv[0]; - - for (arg = argv + 1 ; *arg != NULL ; ++arg) { - filename = *arg; - - fd = open(*arg, O_RDWR); - if (fd < 0) { - ferr("can't open"); - ++failures; - continue; - } - - switch (readelfheaderident(fd, &e.ehdr32)) { - case ELFCLASS32: - if (!(readelfheader32(fd, &e.ehdr32) && - readphdrtable32(fd, &e.ehdr32, &p.phdrs32) && - getmemorysize32(&e.ehdr32, p.phdrs32, &newsize) && - truncatezeros(fd, &newsize) && - modifyheaders32(&e.ehdr32, p.phdrs32, newsize) && - commitchanges32(fd, &e.ehdr32, p.phdrs32, newsize))) - ++failures; - break; - case ELFCLASS64: - if (!(readelfheader64(fd, &e.ehdr64) && - readphdrtable64(fd, &e.ehdr64, &p.phdrs64) && - getmemorysize64(&e.ehdr64, p.phdrs64, &newsize) && - truncatezeros(fd, &newsize) && - modifyheaders64(&e.ehdr64, p.phdrs64, newsize) && - commitchanges64(fd, &e.ehdr64, p.phdrs64, newsize))) - ++failures; - break; - default: - ++failures; - break; - } - close(fd); - } - - return failures ? EXIT_FAILURE : EXIT_SUCCESS; -} diff --git a/obsolete-buildroot/sources/openwrt/tools/trx.c b/obsolete-buildroot/sources/openwrt/tools/trx.c deleted file mode 100644 index f029dc5fba..0000000000 --- a/obsolete-buildroot/sources/openwrt/tools/trx.c +++ /dev/null @@ -1,334 +0,0 @@ -/* - * Copyright (C) 2004 Manuel Novoa III <mjn3@codepoet.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/* July 29, 2004 - * - * This is a hacked replacement for the 'trx' utility used to create - * wrt54g .trx firmware files. It isn't pretty, but it does the job - * for me. - * - * As an extension, you can specify a larger maximum length for the - * .trx file using '-m'. It will be rounded up to be a multiple of 4K. - * NOTE: This space will be malloc()'d. - * - * August 16, 2004 - * - * Sigh... Make it endian-neutral. - * - * TODO: Support '-b' option to specify offsets for each file. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <stddef.h> -#include <stdint.h> -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <endian.h> -#include <byteswap.h> - -#if __BYTE_ORDER == __BIG_ENDIAN -#define STORE32_LE(X) bswap_32(X) -#elif __BYTE_ORDER == __LITTLE_ENDIAN -#define STORE32_LE(X) (X) -#else -#error unkown endianness! -#endif - -uint32_t crc32buf(char *buf, size_t len); - -/**********************************************************************/ -/* from trxhdr.h */ - -#define TRX_MAGIC 0x30524448 /* "HDR0" */ -#define TRX_VERSION 1 -#define TRX_MAX_LEN 0x3A0000 -#define TRX_NO_HEADER 1 /* Do not write TRX header */ - -struct trx_header { - uint32_t magic; /* "HDR0" */ - uint32_t len; /* Length of file including header */ - uint32_t crc32; /* 32-bit CRC from flag_version to end of file */ - uint32_t flag_version; /* 0:15 flags, 16:31 version */ - uint32_t offsets[3]; /* Offsets of partitions from start of header */ -}; - -/**********************************************************************/ - -void usage(void) __attribute__ (( __noreturn__ )); - -void usage(void) -{ - fprintf(stderr, "Usage: trx [-o outfile] [-m maxlen] file [file [file]]\n"); - exit(EXIT_FAILURE); -} - -int main(int argc, char **argv) -{ - FILE *out = stdout; - FILE *in; - char *ofn = NULL; - char *buf; - char *e; - int c, i; - size_t n; - uint32_t cur_len; - unsigned long maxlen = TRX_MAX_LEN; - struct trx_header *p; - - fprintf(stderr, "mjn3's trx replacement - v0.81\n"); - - while ((c = getopt(argc, argv, "o:m:")) != -1) { - switch (c) { - case 'o': - ofn = optarg; - break; - case 'm': - errno = 0; - maxlen = strtoul(optarg, &e, 0); - if (errno || (e == optarg) || *e) { - fprintf(stderr, "illegal numeric string\n"); - usage(); - } -#undef ROUND -#define ROUND 0x1000 - if (maxlen & (ROUND-1)) { - maxlen += (ROUND - (maxlen & (ROUND-1))); - } - if (maxlen < ROUND) { - fprintf(stderr, "maxlen too small (or wrapped)\n"); - usage(); - } - break; - default: - usage(); - } - } - - if (ofn && !(out = fopen(ofn, "w"))) { - fprintf(stderr, "can not open \"%s\" for writing\n", ofn); - usage(); - } - - if (optind == argc) { - fprintf(stderr, "we require at least one arg\n"); - usage(); - } - - if (argc - optind > 3) { - fprintf(stderr, "too many args: %d > 3\n", argc - optind); - usage(); - } - - if (maxlen > TRX_MAX_LEN) { - fprintf(stderr, "WARNING: maxlen exceeds default maximum! Beware of overwriting nvram!\n"); - } - - if (!(buf = malloc(maxlen))) { - fprintf(stderr, "malloc failed\n"); - return EXIT_FAILURE; - } - - p = (struct trx_header *) buf; - - p->magic = STORE32_LE(TRX_MAGIC); - cur_len = sizeof(struct trx_header); - p->flag_version = STORE32_LE((TRX_VERSION << 16)); - - i = 0; - - while (optind < argc) { - p->offsets[i++] = STORE32_LE(cur_len); - - if (!(in = fopen(argv[optind], "r"))) { - fprintf(stderr, "can not open \"%s\" for reading\n", argv[optind]); - usage(); - } - - n = fread(buf + cur_len, 1, maxlen - cur_len, in); - if (!feof(in)) { - fprintf(stderr, "fread failure or file \"%s\" too large\n", - argv[optind]); - fclose(in); - return EXIT_FAILURE; - } - - fclose(in); - - ++optind; - - if (optind < argc) { -#undef ROUND -#define ROUND 4 - if (n & (ROUND-1)) { - memset(buf + cur_len + n, 0, ROUND - (n & (ROUND-1))); - n += ROUND - (n & (ROUND-1)); - } - } - - cur_len += n; - } - -#undef ROUND -#define ROUND 0x1000 - n = cur_len & (ROUND-1); - if (n) { - memset(buf + cur_len, 0, ROUND - n); - cur_len += ROUND - n; - } - - 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); - - if (!fwrite(buf, cur_len, 1, out) || fflush(out)) { - fprintf(stderr, "fwrite failed\n"); - return EXIT_FAILURE; - } - - fclose(out); - - return EXIT_SUCCESS; -} - -/**********************************************************************/ -/* The following was grabbed and tweaked from the old snippets collection - * of public domain C code. */ - -/**********************************************************************\ -|* Demonstration program to compute the 32-bit CRC used as the frame *| -|* check sequence in ADCCP (ANSI X3.66, also known as FIPS PUB 71 *| -|* and FED-STD-1003, the U.S. versions of CCITT's X.25 link-level *| -|* protocol). The 32-bit FCS was added via the Federal Register, *| -|* 1 June 1982, p.23798. I presume but don't know for certain that *| -|* this polynomial is or will be included in CCITT V.41, which *| -|* defines the 16-bit CRC (often called CRC-CCITT) polynomial. FIPS *| -|* PUB 78 says that the 32-bit FCS reduces otherwise undetected *| -|* errors by a factor of 10^-5 over 16-bit FCS. *| -\**********************************************************************/ - -/* Copyright (C) 1986 Gary S. Brown. You may use this program, or - code or tables extracted from it, as desired without restriction.*/ - -/* First, the polynomial itself and its table of feedback terms. The */ -/* polynomial is */ -/* X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0 */ -/* Note that we take it "backwards" and put the highest-order term in */ -/* the lowest-order bit. The X^32 term is "implied"; the LSB is the */ -/* X^31 term, etc. The X^0 term (usually shown as "+1") results in */ -/* the MSB being 1. */ - -/* Note that the usual hardware shift register implementation, which */ -/* is what we're using (we're merely optimizing it by doing eight-bit */ -/* chunks at a time) shifts bits into the lowest-order term. In our */ -/* implementation, that means shifting towards the right. Why do we */ -/* do it this way? Because the calculated CRC must be transmitted in */ -/* order from highest-order term to lowest-order term. UARTs transmit */ -/* characters in order from LSB to MSB. By storing the CRC this way, */ -/* we hand it to the UART in the order low-byte to high-byte; the UART */ -/* sends each low-bit to hight-bit; and the result is transmission bit */ -/* by bit from highest- to lowest-order term without requiring any bit */ -/* shuffling on our part. Reception works similarly. */ - -/* The feedback terms table consists of 256, 32-bit entries. Notes: */ -/* */ -/* 1. The table can be generated at runtime if desired; code to do so */ -/* is shown later. It might not be obvious, but the feedback */ -/* terms simply represent the results of eight shift/xor opera- */ -/* tions for all combinations of data and CRC register values. */ -/* */ -/* 2. The CRC accumulation logic is the same for all CRC polynomials, */ -/* be they sixteen or thirty-two bits wide. You simply choose the */ -/* appropriate table. Alternatively, because the table can be */ -/* generated at runtime, you can start by generating the table for */ -/* the polynomial in question and use exactly the same "updcrc", */ -/* if your application needn't simultaneously handle two CRC */ -/* polynomials. (Note, however, that XMODEM is strange.) */ -/* */ -/* 3. For 16-bit CRCs, the table entries need be only 16 bits wide; */ -/* of course, 32-bit entries work OK if the high 16 bits are zero. */ -/* */ -/* 4. The values must be right-shifted by eight bits by the "updcrc" */ -/* logic; the shift must be unsigned (bring in zeroes). On some */ -/* hardware you could probably optimize the shift in assembler by */ -/* using byte-swap instructions. */ - -static const uint32_t crc_32_tab[] = { /* CRC polynomial 0xedb88320 */ -0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, -0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, -0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, -0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, -0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, -0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, -0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, -0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, -0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, -0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, -0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, -0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, -0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, -0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, -0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, -0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, -0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, -0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, -0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, -0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, -0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, -0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, -0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, -0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, -0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, -0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, -0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, -0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, -0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, -0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, -0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, -0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, -0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, -0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, -0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, -0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, -0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, -0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, -0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, -0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, -0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, -0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, -0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d -}; - -#define UPDC32(octet,crc) (crc_32_tab[((crc) ^ (octet)) & 0xff] ^ ((crc) >> 8)) - -uint32_t crc32buf(char *buf, size_t len) -{ - uint32_t crc; - - crc = 0xFFFFFFFF; - - for ( ; len; --len, ++buf) - { - crc = UPDC32(*buf, crc); - } - - return crc; -} |