#
# expose (again) an hash_fd function (used 911-ipkg.patch)
#
diff -ruN busybox-1.1.1-old/coreutils/md5_sha1_sum.c busybox-1.1.1-new/coreutils/md5_sha1_sum.c
--- busybox-1.1.1-old/coreutils/md5_sha1_sum.c 2006-03-30 00:14:50.000000000 +0200
+++ busybox-1.1.1-new/coreutils/md5_sha1_sum.c 2006-03-29 23:46:51.000000000 +0200
@@ -15,80 +15,10 @@
#include "busybox.h"
-typedef enum { HASH_SHA1, HASH_MD5 } hash_algo_t;
-
#define FLAG_SILENT 1
#define FLAG_CHECK 2
#define FLAG_WARN 4
-/* This might be useful elsewhere */
-static unsigned char *hash_bin_to_hex(unsigned char *hash_value,
- unsigned char hash_length)
-{
- int x, len, max;
- unsigned char *hex_value;
-
- max = (hash_length * 2) + 2;
- hex_value = xmalloc(max);
- for (x = len = 0; x < hash_length; x++) {
- len += snprintf((char*)(hex_value + len), max - len, "%02x", hash_value[x]);
- }
- return (hex_value);
-}
-
-static uint8_t *hash_file(const char *filename, hash_algo_t hash_algo)
-{
- int src_fd, hash_len, count;
- union _ctx_ {
- sha1_ctx_t sha1;
- md5_ctx_t md5;
- } context;
- uint8_t *hash_value = NULL;
- RESERVE_CONFIG_UBUFFER(in_buf, 4096);
- void (*update)(const void*, size_t, void*);
- void (*final)(void*, void*);
-
- if(strcmp(filename, "-") == 0) {
- src_fd = STDIN_FILENO;
- } else if(0 > (src_fd = open(filename, O_RDONLY))) {
- bb_perror_msg("%s", filename);
- return NULL;
- }
-
- // figure specific hash algorithims
- if(ENABLE_MD5SUM && hash_algo==HASH_MD5) {
- md5_begin(&context.md5);
- update = (void (*)(const void*, size_t, void*))md5_hash;
- final = (void (*)(void*, void*))md5_end;
- hash_len = 16;
- } else if(ENABLE_SHA1SUM && hash_algo==HASH_SHA1) {
- sha1_begin(&context.sha1);
- update = (void (*)(const void*, size_t, void*))sha1_hash;
- final = (void (*)(void*, void*))sha1_end;
- hash_len = 20;
- } else {
- bb_error_msg_and_die("algotithm not supported");
- }
-
-
- while(0 < (count = read(src_fd, in_buf, sizeof in_buf))) {
- update(in_buf, count, &context);
- }
-
- if(count == 0) {
- final(in_buf, &context);
- hash_value = hash_bin_to_hex(in_buf, hash_len);
- }
-
- RELEASE_CONFIG_BUFFER(in_buf);
-
- if(src_fd != STDIN_FILENO) {
- close(src_fd);
- }
-
- return hash_value;
-}
-
/* This could become a common function for md5 as well, by using md5_stream */
static int hash_files(int argc, char **argv, hash_algo_t hash_algo)
{
diff -ruN busybox-1.1.1-old/include/libbb.h busybox-1.1.1-new/include/libbb.h
--- busybox-1.1.1-old/include/libbb.h 2006-03-30 00:14:50.000000000 +0200
+++ busybox-1.1.1-new/include/libbb.h 2006-03-30 00:31:48.000000000 +0200
@@ -490,6 +490,12 @@
void md5_hash(const void *data, size_t length, md5_ctx_t *ctx);
void *md5_end(void *resbuf, md5_ctx_t *ctx);
+typedef enum { HASH_SHA1, HASH_MD5 } hash_algo_t;
+
+unsigned char *hash_bin_to_hex(unsigned char *hash_value, unsigned char hash_length);
+int hash_fd(int fd, hash_algo_t hash_algo, uint8_t *hash_value);
+uint8_t *hash_file(const char *filename, hash_algo_t hash_algo);
+
/* busybox.h will include dmalloc later for us, else include it here. */
#if !defined _BB_INTERNAL_H_ && defined DMALLOC
#include <dmalloc.h>
diff -ruN busybox-1.1.1-old/libbb/Makefile.in busybox-1.1.1-new/libbb/Makefile.in
--- busybox-1.1.1-old/libbb/Makefile.in 2006-03-30 00:14:50.000000000 +0200
+++ busybox-1.1.1-new/libbb/Makefile.in 2006-03-29 23:46:51.000000000 +0200
@@ -11,6 +11,7 @@
LIBBB-n:=
LIBBB-y:= \
+ hash.c \
bb_asprintf.c ask_confirmation.c change_identity.c chomp.c \
compare_string_array.c concat_path_file.c copy_file.c copyfd.c \
create_icmp_socket.c create_icmp6_socket.c \
diff -ruN busybox-1.1.1-old/libbb/hash.c busybox-1.1.1-new/libbb/hash.c
--- busybox-1.1.1-old/libbb/hash.c 1970-01-01 01:00:00.000000000 +0100
+++ busybox-1.1.1-new/libbb/hash.c 2006-03-30 00:35:54.000000000 +0200
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2003 Glenn L. McGrath
+ * Copyright (C) 2003-2004 Erik Andersen
+ *
+ * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ */
+
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "busybox.h"
+
+unsigned char *hash_bin_to_hex(unsigned char *hash_value, unsigned char hash_length)
+{
+ int x, len, max;
+ unsigned char *hex_value;
+
+ max = (hash_length * 2) + 2;
+ hex_value = xmalloc(max);
+ for (x = len = 0; x < hash_length; x++) {
+ len += snprintf((char*)(hex_value + len), max - len, "%02x", hash_value[x]);
+ }
+ return (hex_value);
+}
+
+int hash_fd(int fd, hash_algo_t hash_algo, uint8_t *hash_value)
+{
+ int count, result = 0;
+ union _ctx_ {
+ sha1_ctx_t sha1;
+ md5_ctx_t md5;
+ } context;
+ RESERVE_CONFIG_UBUFFER(in_buf, 4096);
+ void (*update)(const void*, size_t, void*) = NULL;
+ void (*final)(void*, void*) = NULL;
+
+ // figure specific hash algorithims
+ if(hash_algo==HASH_MD5) {
+ md5_begin(&context.md5);
+ update = (void (*)(const void*, size_t, void*))md5_hash;
+ final = (void (*)(void*, void*))md5_end;
+ } else if(hash_algo==HASH_SHA1) {
+ sha1_begin(&context.sha1);
+ update = (void (*)(const void*, size_t, void*))sha1_hash;
+ final = (void (*)(void*, void*))sha1_end;
+ }
+
+
+ while(0 < (count = read(fd, in_buf, sizeof in_buf))) {
+ update(in_buf, count, &context);
+ result += count;
+ }
+
+ if(count == 0) {
+ final(hash_value, &context);
+ }
+
+ RELEASE_CONFIG_BUFFER(in_buf);
+
+ return result;
+}
+
+uint8_t *hash_file(const char *filename, hash_algo_t hash_algo)
+{
+ int src_fd, hash_len;
+ RESERVE_CONFIG_UBUFFER(hash_buf, 20);
+ uint8_t *hash_value = NULL;
+
+ if(ENABLE_MD5SUM && hash_algo==HASH_MD5) {
+ hash_len = 16;
+ } else if(ENABLE_SHA1SUM && hash_algo==HASH_SHA1) {
+ hash_len = 20;
+ } else {
+ bb_error_msg_and_die("algotithm not supported");
+ }
+
+ if(strcmp(filename, "-") == 0) {
+ src_fd = STDIN_FILENO;
+ } else if(0 > (src_fd = open(filename, O_RDONLY))) {
+ bb_perror_msg("%s", filename);
+ return NULL;
+ }
+
+ if(hash_fd(src_fd, hash_algo, hash_buf) > 0) {
+ hash_value = hash_bin_to_hex(hash_buf, hash_len);
+ }
+
+ if(src_fd != STDIN_FILENO) {
+ close(src_fd);
+ }
+
+ RELEASE_CONFIG_BUFFER(hash_buf);
+
+ return hash_value;
+}