+++ /dev/null
-/*
- * This is an OpenSSL-compatible implementation of the RSA Data Security, Inc.
- * MD5 Message-Digest Algorithm (RFC 1321).
- *
- * Homepage:
- * http://openwall.info/wiki/people/solar/software/public-domain-source-code/md5
- *
- * Author:
- * Alexander Peslyak, better known as Solar Designer <solar at openwall.com>
- *
- * This software was written by Alexander Peslyak in 2001. No copyright is
- * claimed, and the software is hereby placed in the public domain.
- * In case this attempt to disclaim copyright and place the software in the
- * public domain is deemed null and void, then the software is
- * Copyright (c) 2001 Alexander Peslyak and it is hereby released to the
- * general public under the following terms:
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted.
- *
- * There's ABSOLUTELY NO WARRANTY, express or implied.
- *
- * (This is a heavily cut-down "BSD license".)
- *
- * This differs from Colin Plumb's older public domain implementation in that
- * no exactly 32-bit integer data type is required (any 32-bit or wider
- * unsigned integer data type will do), there's no compile-time endianness
- * configuration, and the function prototypes match OpenSSL's. No code from
- * Colin Plumb's implementation has been reused; this comment merely compares
- * the properties of the two independent implementations.
- *
- * The primary goals of this implementation are portability and ease of use.
- * It is meant to be fast, but not as fast as possible. Some known
- * optimizations are not included to reduce source code size and avoid
- * compile-time configuration.
- */
-
-#ifndef HAVE_OPENSSL
-
-#include <string.h>
-
-#include "md5.h"
-
-/*
- * The basic MD5 functions.
- *
- * F and G are optimized compared to their RFC 1321 definitions for
- * architectures that lack an AND-NOT instruction, just like in Colin Plumb's
- * implementation.
- */
-#define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
-#define G(x, y, z) ((y) ^ ((z) & ((x) ^ (y))))
-#define H(x, y, z) (((x) ^ (y)) ^ (z))
-#define H2(x, y, z) ((x) ^ ((y) ^ (z)))
-#define I(x, y, z) ((y) ^ ((x) | ~(z)))
-
-/*
- * The MD5 transformation for all four rounds.
- */
-#define STEP(f, a, b, c, d, x, t, s) \
- (a) += f((b), (c), (d)) + (x) + (t); \
- (a) = (((a) << (s)) | (((a) & 0xffffffff) >> (32 - (s)))); \
- (a) += (b);
-
-/*
- * SET reads 4 input bytes in little-endian byte order and stores them
- * in a properly aligned word in host byte order.
- *
- * The check for little-endian architectures that tolerate unaligned
- * memory accesses is just an optimization. Nothing will break if it
- * doesn't work.
- */
-#if defined(__i386__) || defined(__x86_64__) || defined(__vax__)
-#define SET(n) \
- (*(MD5_u32plus *)&ptr[(n) * 4])
-#define GET(n) \
- SET(n)
-#else
-#define SET(n) \
- (ctx->block[(n)] = \
- (MD5_u32plus)ptr[(n) * 4] | \
- ((MD5_u32plus)ptr[(n) * 4 + 1] << 8) | \
- ((MD5_u32plus)ptr[(n) * 4 + 2] << 16) | \
- ((MD5_u32plus)ptr[(n) * 4 + 3] << 24))
-#define GET(n) \
- (ctx->block[(n)])
-#endif
-
-/*
- * This processes one or more 64-byte data blocks, but does NOT update
- * the bit counters. There are no alignment requirements.
- */
-static const void *body(MD5_CTX *ctx, const void *data, unsigned long size)
-{
- const unsigned char *ptr;
- MD5_u32plus a, b, c, d;
- MD5_u32plus saved_a, saved_b, saved_c, saved_d;
-
- ptr = (const unsigned char *)data;
-
- a = ctx->a;
- b = ctx->b;
- c = ctx->c;
- d = ctx->d;
-
- do {
- saved_a = a;
- saved_b = b;
- saved_c = c;
- saved_d = d;
-
-/* Round 1 */
- STEP(F, a, b, c, d, SET(0), 0xd76aa478, 7)
- STEP(F, d, a, b, c, SET(1), 0xe8c7b756, 12)
- STEP(F, c, d, a, b, SET(2), 0x242070db, 17)
- STEP(F, b, c, d, a, SET(3), 0xc1bdceee, 22)
- STEP(F, a, b, c, d, SET(4), 0xf57c0faf, 7)
- STEP(F, d, a, b, c, SET(5), 0x4787c62a, 12)
- STEP(F, c, d, a, b, SET(6), 0xa8304613, 17)
- STEP(F, b, c, d, a, SET(7), 0xfd469501, 22)
- STEP(F, a, b, c, d, SET(8), 0x698098d8, 7)
- STEP(F, d, a, b, c, SET(9), 0x8b44f7af, 12)
- STEP(F, c, d, a, b, SET(10), 0xffff5bb1, 17)
- STEP(F, b, c, d, a, SET(11), 0x895cd7be, 22)
- STEP(F, a, b, c, d, SET(12), 0x6b901122, 7)
- STEP(F, d, a, b, c, SET(13), 0xfd987193, 12)
- STEP(F, c, d, a, b, SET(14), 0xa679438e, 17)
- STEP(F, b, c, d, a, SET(15), 0x49b40821, 22)
-
-/* Round 2 */
- STEP(G, a, b, c, d, GET(1), 0xf61e2562, 5)
- STEP(G, d, a, b, c, GET(6), 0xc040b340, 9)
- STEP(G, c, d, a, b, GET(11), 0x265e5a51, 14)
- STEP(G, b, c, d, a, GET(0), 0xe9b6c7aa, 20)
- STEP(G, a, b, c, d, GET(5), 0xd62f105d, 5)
- STEP(G, d, a, b, c, GET(10), 0x02441453, 9)
- STEP(G, c, d, a, b, GET(15), 0xd8a1e681, 14)
- STEP(G, b, c, d, a, GET(4), 0xe7d3fbc8, 20)
- STEP(G, a, b, c, d, GET(9), 0x21e1cde6, 5)
- STEP(G, d, a, b, c, GET(14), 0xc33707d6, 9)
- STEP(G, c, d, a, b, GET(3), 0xf4d50d87, 14)
- STEP(G, b, c, d, a, GET(8), 0x455a14ed, 20)
- STEP(G, a, b, c, d, GET(13), 0xa9e3e905, 5)
- STEP(G, d, a, b, c, GET(2), 0xfcefa3f8, 9)
- STEP(G, c, d, a, b, GET(7), 0x676f02d9, 14)
- STEP(G, b, c, d, a, GET(12), 0x8d2a4c8a, 20)
-
-/* Round 3 */
- STEP(H, a, b, c, d, GET(5), 0xfffa3942, 4)
- STEP(H2, d, a, b, c, GET(8), 0x8771f681, 11)
- STEP(H, c, d, a, b, GET(11), 0x6d9d6122, 16)
- STEP(H2, b, c, d, a, GET(14), 0xfde5380c, 23)
- STEP(H, a, b, c, d, GET(1), 0xa4beea44, 4)
- STEP(H2, d, a, b, c, GET(4), 0x4bdecfa9, 11)
- STEP(H, c, d, a, b, GET(7), 0xf6bb4b60, 16)
- STEP(H2, b, c, d, a, GET(10), 0xbebfbc70, 23)
- STEP(H, a, b, c, d, GET(13), 0x289b7ec6, 4)
- STEP(H2, d, a, b, c, GET(0), 0xeaa127fa, 11)
- STEP(H, c, d, a, b, GET(3), 0xd4ef3085, 16)
- STEP(H2, b, c, d, a, GET(6), 0x04881d05, 23)
- STEP(H, a, b, c, d, GET(9), 0xd9d4d039, 4)
- STEP(H2, d, a, b, c, GET(12), 0xe6db99e5, 11)
- STEP(H, c, d, a, b, GET(15), 0x1fa27cf8, 16)
- STEP(H2, b, c, d, a, GET(2), 0xc4ac5665, 23)
-
-/* Round 4 */
- STEP(I, a, b, c, d, GET(0), 0xf4292244, 6)
- STEP(I, d, a, b, c, GET(7), 0x432aff97, 10)
- STEP(I, c, d, a, b, GET(14), 0xab9423a7, 15)
- STEP(I, b, c, d, a, GET(5), 0xfc93a039, 21)
- STEP(I, a, b, c, d, GET(12), 0x655b59c3, 6)
- STEP(I, d, a, b, c, GET(3), 0x8f0ccc92, 10)
- STEP(I, c, d, a, b, GET(10), 0xffeff47d, 15)
- STEP(I, b, c, d, a, GET(1), 0x85845dd1, 21)
- STEP(I, a, b, c, d, GET(8), 0x6fa87e4f, 6)
- STEP(I, d, a, b, c, GET(15), 0xfe2ce6e0, 10)
- STEP(I, c, d, a, b, GET(6), 0xa3014314, 15)
- STEP(I, b, c, d, a, GET(13), 0x4e0811a1, 21)
- STEP(I, a, b, c, d, GET(4), 0xf7537e82, 6)
- STEP(I, d, a, b, c, GET(11), 0xbd3af235, 10)
- STEP(I, c, d, a, b, GET(2), 0x2ad7d2bb, 15)
- STEP(I, b, c, d, a, GET(9), 0xeb86d391, 21)
-
- a += saved_a;
- b += saved_b;
- c += saved_c;
- d += saved_d;
-
- ptr += 64;
- } while (size -= 64);
-
- ctx->a = a;
- ctx->b = b;
- ctx->c = c;
- ctx->d = d;
-
- return ptr;
-}
-
-void MD5_Init(MD5_CTX *ctx)
-{
- ctx->a = 0x67452301;
- ctx->b = 0xefcdab89;
- ctx->c = 0x98badcfe;
- ctx->d = 0x10325476;
-
- ctx->lo = 0;
- ctx->hi = 0;
-}
-
-void MD5_Update(MD5_CTX *ctx, const void *data, unsigned long size)
-{
- MD5_u32plus saved_lo;
- unsigned long used, available;
-
- saved_lo = ctx->lo;
- if ((ctx->lo = (saved_lo + size) & 0x1fffffff) < saved_lo)
- ctx->hi++;
- ctx->hi += size >> 29;
-
- used = saved_lo & 0x3f;
-
- if (used) {
- available = 64 - used;
-
- if (size < available) {
- memcpy(&ctx->buffer[used], data, size);
- return;
- }
-
- memcpy(&ctx->buffer[used], data, available);
- data = (const unsigned char *)data + available;
- size -= available;
- body(ctx, ctx->buffer, 64);
- }
-
- if (size >= 64) {
- data = body(ctx, data, size & ~(unsigned long)0x3f);
- size &= 0x3f;
- }
-
- memcpy(ctx->buffer, data, size);
-}
-
-void MD5_Final(unsigned char *result, MD5_CTX *ctx)
-{
- unsigned long used, available;
-
- used = ctx->lo & 0x3f;
-
- ctx->buffer[used++] = 0x80;
-
- available = 64 - used;
-
- if (available < 8) {
- memset(&ctx->buffer[used], 0, available);
- body(ctx, ctx->buffer, 64);
- used = 0;
- available = 64;
- }
-
- memset(&ctx->buffer[used], 0, available - 8);
-
- ctx->lo <<= 3;
- ctx->buffer[56] = ctx->lo;
- ctx->buffer[57] = ctx->lo >> 8;
- ctx->buffer[58] = ctx->lo >> 16;
- ctx->buffer[59] = ctx->lo >> 24;
- ctx->buffer[60] = ctx->hi;
- ctx->buffer[61] = ctx->hi >> 8;
- ctx->buffer[62] = ctx->hi >> 16;
- ctx->buffer[63] = ctx->hi >> 24;
-
- body(ctx, ctx->buffer, 64);
-
- result[0] = ctx->a;
- result[1] = ctx->a >> 8;
- result[2] = ctx->a >> 16;
- result[3] = ctx->a >> 24;
- result[4] = ctx->b;
- result[5] = ctx->b >> 8;
- result[6] = ctx->b >> 16;
- result[7] = ctx->b >> 24;
- result[8] = ctx->c;
- result[9] = ctx->c >> 8;
- result[10] = ctx->c >> 16;
- result[11] = ctx->c >> 24;
- result[12] = ctx->d;
- result[13] = ctx->d >> 8;
- result[14] = ctx->d >> 16;
- result[15] = ctx->d >> 24;
-
- memset(ctx, 0, sizeof(*ctx));
-}
-
-#endif
+++ /dev/null
-/*
- * oseama
- *
- * Copyright (C) 2016 Rafał Miłecki <zajec5@gmail.com>
- *
- * 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.
- */
-
-#include <byteswap.h>
-#include <endian.h>
-#include <errno.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "md5.h"
-
-#if !defined(__BYTE_ORDER)
-#error "Unknown byte order"
-#endif
-
-#if __BYTE_ORDER == __BIG_ENDIAN
-#define cpu_to_be32(x) (x)
-#define be32_to_cpu(x) (x)
-#define cpu_to_be16(x) (x)
-#define be16_to_cpu(x) (x)
-#elif __BYTE_ORDER == __LITTLE_ENDIAN
-#define cpu_to_be32(x) bswap_32(x)
-#define be32_to_cpu(x) bswap_32(x)
-#define cpu_to_be16(x) bswap_16(x)
-#define be16_to_cpu(x) bswap_16(x)
-#else
-#error "Unsupported endianness"
-#endif
-
-#define SEAMA_MAGIC 0x5ea3a417
-
-struct seama_seal_header {
- uint32_t magic;
- uint16_t reserved;
- uint16_t metasize;
- uint32_t imagesize;
-} __attribute__ ((packed));
-
-struct seama_entity_header {
- uint32_t magic;
- uint16_t reserved;
- uint16_t metasize;
- uint32_t imagesize;
- uint8_t md5[16];
-} __attribute__ ((packed));
-
-char *seama_path;
-int entity_idx = -1;
-char *out_path;
-
-static inline size_t oseama_min(size_t x, size_t y) {
- return x < y ? x : y;
-}
-
-/**************************************************
- * Info
- **************************************************/
-
-static void oseama_info_parse_options(int argc, char **argv) {
- int c;
-
- while ((c = getopt(argc, argv, "e:")) != -1) {
- switch (c) {
- case 'e':
- entity_idx = atoi(optarg);
- break;
- }
- }
-}
-
-static int oseama_info_entities(FILE *seama) {
- struct seama_entity_header hdr;
- size_t bytes, metasize, imagesize;
- uint8_t buf[1024];
- char *end, *tmp;
- int i = 0;
- int err = 0;
-
- while ((bytes = fread(&hdr, 1, sizeof(hdr), seama)) == sizeof(hdr)) {
- if (be32_to_cpu(hdr.magic) != SEAMA_MAGIC) {
- fprintf(stderr, "Invalid Seama magic: 0x%08x\n", be32_to_cpu(hdr.magic));
- err = -EINVAL;
- goto err_out;
- }
- metasize = be16_to_cpu(hdr.metasize);
- imagesize = be32_to_cpu(hdr.imagesize);
-
- if (entity_idx >= 0 && i != entity_idx) {
- fseek(seama, metasize + imagesize, SEEK_CUR);
- i++;
- continue;
- }
-
- if (metasize >= sizeof(buf)) {
- fprintf(stderr, "Too small buffer (%zu B) to read all meta info (%zd B)\n", sizeof(buf), metasize);
- err = -EINVAL;
- goto err_out;
- }
-
- if (entity_idx < 0)
- printf("\n");
- printf("Entity offset:\t%ld\n", ftell(seama) - sizeof(hdr));
- printf("Entity size:\t%zd\n", sizeof(hdr) + metasize + imagesize);
- printf("Meta size:\t%zd\n", metasize);
- printf("Image size:\t%zd\n", imagesize);
-
- bytes = fread(buf, 1, metasize, seama);
- if (bytes != metasize) {
- fprintf(stderr, "Couldn't read %zd B of meta\n", metasize);
- err = -EIO;
- goto err_out;
- }
-
- end = (char *)&buf[metasize - 1];
- *end = '\0';
- for (tmp = (char *)buf; tmp < end && strlen(tmp); tmp += strlen(tmp) + 1) {
- printf("Meta entry:\t%s\n", tmp);
- }
-
- fseek(seama, imagesize, SEEK_CUR);
- i++;
- }
-
-err_out:
- return err;
-}
-
-static int oseama_info(int argc, char **argv) {
- FILE *seama;
- struct seama_seal_header hdr;
- size_t bytes;
- uint16_t metasize;
- uint32_t imagesize;
- uint8_t buf[1024];
- int err = 0;
-
- if (argc < 3) {
- fprintf(stderr, "No Seama file passed\n");
- err = -EINVAL;
- goto out;
- }
- seama_path = argv[2];
-
- optind = 3;
- oseama_info_parse_options(argc, argv);
-
- seama = fopen(seama_path, "r");
- if (!seama) {
- fprintf(stderr, "Couldn't open %s\n", seama_path);
- err = -EACCES;
- goto out;
- }
-
- bytes = fread(&hdr, 1, sizeof(hdr), seama);
- if (bytes != sizeof(hdr)) {
- fprintf(stderr, "Couldn't read %s header\n", seama_path);
- err = -EIO;
- goto err_close;
- }
- metasize = be16_to_cpu(hdr.metasize);
- imagesize = be32_to_cpu(hdr.imagesize);
-
- if (be32_to_cpu(hdr.magic) != SEAMA_MAGIC) {
- fprintf(stderr, "Invalid Seama magic: 0x%08x\n", be32_to_cpu(hdr.magic));
- err = -EINVAL;
- goto err_close;
- }
-
- if (metasize >= sizeof(buf)) {
- fprintf(stderr, "Too small buffer (%zu B) to read all meta info (%d B)\n", sizeof(buf), metasize);
- err = -EINVAL;
- goto err_close;
- }
-
- if (imagesize) {
- fprintf(stderr, "Invalid Seama image size: 0x%08x (should be 0)\n", imagesize);
- err = -EINVAL;
- goto err_close;
- }
-
- bytes = fread(buf, 1, metasize, seama);
- if (bytes != metasize) {
- fprintf(stderr, "Couldn't read %d B of meta\n", metasize);
- err = -EIO;
- goto err_close;
- }
-
- if (entity_idx < 0) {
- char *end, *tmp;
-
- printf("Meta size:\t%d\n", metasize);
- printf("Image size:\t%d\n", imagesize);
-
- end = (char *)&buf[metasize - 1];
- *end = '\0';
- for (tmp = (char *)buf; tmp < end && strlen(tmp); tmp += strlen(tmp) + 1) {
- printf("Meta entry:\t%s\n", tmp);
- }
- }
-
- oseama_info_entities(seama);
-
-err_close:
- fclose(seama);
-out:
- return err;
-}
-
-/**************************************************
- * Create
- **************************************************/
-
-static ssize_t oseama_entity_append_file(FILE *seama, const char *in_path) {
- FILE *in;
- size_t bytes;
- ssize_t length = 0;
- uint8_t buf[128];
-
- in = fopen(in_path, "r");
- if (!in) {
- fprintf(stderr, "Couldn't open %s\n", in_path);
- return -EACCES;
- }
-
- while ((bytes = fread(buf, 1, sizeof(buf), in)) > 0) {
- if (fwrite(buf, 1, bytes, seama) != bytes) {
- fprintf(stderr, "Couldn't write %zu B to %s\n", bytes, seama_path);
- length = -EIO;
- break;
- }
- length += bytes;
- }
-
- fclose(in);
-
- return length;
-}
-
-static ssize_t oseama_entity_append_zeros(FILE *seama, size_t length) {
- uint8_t *buf;
-
- buf = malloc(length);
- if (!buf)
- return -ENOMEM;
- memset(buf, 0, length);
-
- if (fwrite(buf, 1, length, seama) != length) {
- fprintf(stderr, "Couldn't write %zu B to %s\n", length, seama_path);
- return -EIO;
- }
-
- return length;
-}
-
-static ssize_t oseama_entity_align(FILE *seama, size_t curr_offset, size_t alignment) {
- if (curr_offset & (alignment - 1)) {
- size_t length = alignment - (curr_offset % alignment);
-
- return oseama_entity_append_zeros(seama, length);
- }
-
- return 0;
-}
-
-static int oseama_entity_write_hdr(FILE *seama, size_t metasize, size_t imagesize) {
- struct seama_entity_header hdr = {};
- uint8_t buf[128];
- size_t length = imagesize;
- size_t bytes;
- MD5_CTX ctx;
-
- fseek(seama, sizeof(hdr) + metasize, SEEK_SET);
- MD5_Init(&ctx);
- while ((bytes = fread(buf, 1, oseama_min(sizeof(buf), length), seama)) > 0) {
- MD5_Update(&ctx, buf, bytes);
- length -= bytes;
- }
- MD5_Final(hdr.md5, &ctx);
-
- hdr.magic = cpu_to_be32(SEAMA_MAGIC);
- hdr.metasize = cpu_to_be16(metasize);
- hdr.imagesize = cpu_to_be32(imagesize);
-
- fseek(seama, 0, SEEK_SET);
- bytes = fwrite(&hdr, 1, sizeof(hdr), seama);
- if (bytes != sizeof(hdr)) {
- fprintf(stderr, "Couldn't write Seama entity header to %s\n", seama_path);
- return -EIO;
- }
-
- return 0;
-}
-
-static int oseama_entity(int argc, char **argv) {
- FILE *seama;
- ssize_t sbytes;
- size_t curr_offset = sizeof(struct seama_entity_header);
- size_t metasize = 0, imagesize = 0;
- int c;
- int err = 0;
-
- if (argc < 3) {
- fprintf(stderr, "No Seama file passed\n");
- err = -EINVAL;
- goto out;
- }
- seama_path = argv[2];
-
- seama = fopen(seama_path, "w+");
- if (!seama) {
- fprintf(stderr, "Couldn't open %s\n", seama_path);
- err = -EACCES;
- goto out;
- }
- fseek(seama, curr_offset, SEEK_SET);
-
- optind = 3;
- while ((c = getopt(argc, argv, "m:f:b:")) != -1) {
- switch (c) {
- case 'm':
- sbytes = fwrite(optarg, 1, strlen(optarg) + 1, seama);
- if (sbytes < 0) {
- fprintf(stderr, "Failed to write meta %s\n", optarg);
- } else {
- curr_offset += sbytes;
- metasize += sbytes;
- }
-
- sbytes = oseama_entity_align(seama, curr_offset, 4);
- if (sbytes < 0) {
- fprintf(stderr, "Failed to append zeros\n");
- } else {
- curr_offset += sbytes;
- metasize += sbytes;
- }
-
- break;
- case 'f':
- case 'b':
- break;
- }
- }
-
- optind = 3;
- while ((c = getopt(argc, argv, "m:f:b:")) != -1) {
- switch (c) {
- case 'm':
- break;
- case 'f':
- sbytes = oseama_entity_append_file(seama, optarg);
- if (sbytes < 0) {
- fprintf(stderr, "Failed to append file %s\n", optarg);
- } else {
- curr_offset += sbytes;
- imagesize += sbytes;
- }
- break;
- case 'b':
- sbytes = strtol(optarg, NULL, 0) - curr_offset;
- if (sbytes < 0) {
- fprintf(stderr, "Current Seama entity length is 0x%zx, can't pad it with zeros to 0x%lx\n", curr_offset, strtol(optarg, NULL, 0));
- } else {
- sbytes = oseama_entity_append_zeros(seama, sbytes);
- if (sbytes < 0) {
- fprintf(stderr, "Failed to append zeros\n");
- } else {
- curr_offset += sbytes;
- imagesize += sbytes;
- }
- }
- break;
- }
- if (err)
- break;
- }
-
- oseama_entity_write_hdr(seama, metasize, imagesize);
-
- fclose(seama);
-out:
- return err;
-}
-
-/**************************************************
- * Extract
- **************************************************/
-
-static void oseama_extract_parse_options(int argc, char **argv) {
- int c;
-
- while ((c = getopt(argc, argv, "e:o:")) != -1) {
- switch (c) {
- case 'e':
- entity_idx = atoi(optarg);
- break;
- case 'o':
- out_path = optarg;
- break;
- }
- }
-}
-
-static int oseama_extract_entity(FILE *seama, FILE *out) {
- struct seama_entity_header hdr;
- size_t bytes, metasize, imagesize, length;
- uint8_t buf[1024];
- int i = 0;
- int err = 0;
-
- while ((bytes = fread(&hdr, 1, sizeof(hdr), seama)) == sizeof(hdr)) {
- if (be32_to_cpu(hdr.magic) != SEAMA_MAGIC) {
- fprintf(stderr, "Invalid Seama magic: 0x%08x\n", be32_to_cpu(hdr.magic));
- err = -EINVAL;
- break;
- }
- metasize = be16_to_cpu(hdr.metasize);
- imagesize = be32_to_cpu(hdr.imagesize);
-
- if (i != entity_idx) {
- fseek(seama, metasize + imagesize, SEEK_CUR);
- i++;
- continue;
- }
-
- fseek(seama, -sizeof(hdr), SEEK_CUR);
-
- length = sizeof(hdr) + metasize + imagesize;
- while ((bytes = fread(buf, 1, oseama_min(sizeof(buf), length), seama)) > 0) {
- if (fwrite(buf, 1, bytes, out) != bytes) {
- fprintf(stderr, "Couldn't write %zu B to %s\n", bytes, out_path);
- err = -EIO;
- break;
- }
- length -= bytes;
- }
-
- if (length) {
- fprintf(stderr, "Couldn't extract whole entity %d from %s (%zu B left)\n", entity_idx, seama_path, length);
- err = -EIO;
- break;
- }
-
- break;
- }
-
- return err;
-}
-
-static int oseama_extract(int argc, char **argv) {
- FILE *seama;
- FILE *out;
- struct seama_seal_header hdr;
- size_t bytes;
- uint16_t metasize;
- int err = 0;
-
- if (argc < 3) {
- fprintf(stderr, "No Seama file passed\n");
- err = -EINVAL;
- goto out;
- }
- seama_path = argv[2];
-
- optind = 3;
- oseama_extract_parse_options(argc, argv);
- if (entity_idx < 0) {
- fprintf(stderr, "No entity specified\n");
- err = -EINVAL;
- goto out;
- } else if (!out_path) {
- fprintf(stderr, "No output file specified\n");
- err = -EINVAL;
- goto out;
- }
-
- seama = fopen(seama_path, "r");
- if (!seama) {
- fprintf(stderr, "Couldn't open %s\n", seama_path);
- err = -EACCES;
- goto out;
- }
-
- out = fopen(out_path, "w");
- if (!out) {
- fprintf(stderr, "Couldn't open %s\n", out_path);
- err = -EACCES;
- goto err_close_seama;
- }
-
- bytes = fread(&hdr, 1, sizeof(hdr), seama);
- if (bytes != sizeof(hdr)) {
- fprintf(stderr, "Couldn't read %s header\n", seama_path);
- err = -EIO;
- goto err_close_out;
- }
- metasize = be16_to_cpu(hdr.metasize);
-
- fseek(seama, metasize, SEEK_CUR);
-
- oseama_extract_entity(seama, out);
-
-err_close_out:
- fclose(out);
-err_close_seama:
- fclose(seama);
-out:
- return err;
-}
-
-/**************************************************
- * Start
- **************************************************/
-
-static void usage() {
- printf("Usage:\n");
- printf("\n");
- printf("Info about Seama seal (container):\n");
- printf("\toseama info <file> [options]\n");
- printf("\t-e\t\t\t\tprint info about specified entity only\n");
- printf("\n");
- printf("Create Seama entity:\n");
- printf("\toseama entity <file> [options]\n");
- printf("\t-m meta\t\t\t\tmeta into to put in header\n");
- printf("\t-f file\t\t\t\tappend content from file\n");
- printf("\t-b offset\t\t\tappend zeros till reaching absolute offset\n");
- printf("\n");
- printf("Extract from Seama seal (container):\n");
- printf("\toseama extract <file> [options]\n");
- printf("\t-e\t\t\t\tindex of entity to extract\n");
- printf("\t-o file\t\t\t\toutput file\n");
-}
-
-int main(int argc, char **argv) {
- if (argc > 1) {
- if (!strcmp(argv[1], "info"))
- return oseama_info(argc, argv);
- else if (!strcmp(argv[1], "entity"))
- return oseama_entity(argc, argv);
- else if (!strcmp(argv[1], "extract"))
- return oseama_extract(argc, argv);
- }
-
- usage();
- return 0;
-}
projects / openwrt / staging / blocktrron.git / commitdiff