/*
+ * Copyright (C) 1993 Branko Lankester
+ * Copyright (C) 1993 Colin Plumb
+ * Copyright (C) 1995 Erik Troan
+ * Copyright (C) 2004 John Ellis
+ * Copyright (C) 2008 - 2016 The Geeqie Team
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
* This code implements the MD5 message-digest algorithm.
* The algorithm is due to Ron Rivest. This code was
* written by Colin Plumb in 1993, no copyright is claimed.
* will fill a supplied 16-byte array with the digest.
*/
-/* parts of this file are :
- * Written March 1993 by Branko Lankester
- * Modified June 1993 by Colin Plumb for altered md5.c.
- * Modified October 1995 by Erik Troan for RPM
- */
-
-/*
- * Pulled from evolution for use in GQview, their version is nicely glib'ed
- * GNOME CVS HEAD evolution/e-util/md5-utils.[ch] September 8, 2004
- */
-
-
#include <stdio.h>
#include <string.h>
#include "md5-util.h"
-#include "ui_fileops.h" /* for utf-8 filename conversion */
-
-static void md5_transform (guint32 buf[4], const guint32 in[16]);
+static void md5_transform(guint32 buf[4], const guint32 in[16]);
static gint _ie = 0x44332211;
static union _endian { gint i; gchar b[4]; } *_endian = (union _endian *)&_ie;
/*
* Note: this code is harmless on little-endian machines.
*/
-static void
-_byte_reverse (guchar *buf, guint32 longs)
+static void
+_byte_reverse(guchar *buf, guint32 longs)
{
guint32 t;
do {
/**
* md5_init: Initialise an md5 context object
- * @ctx: md5 context
- *
- * Initialise an md5 buffer.
+ * @ctx: md5 context
+ *
+ * Initialise an md5 buffer.
*
**/
-void
-md5_init (MD5Context *ctx)
+void
+md5_init(MD5Context *ctx)
{
ctx->buf[0] = 0x67452301;
ctx->buf[1] = 0xefcdab89;
ctx->buf[2] = 0x98badcfe;
ctx->buf[3] = 0x10325476;
-
+
ctx->bits[0] = 0;
ctx->bits[1] = 0;
-
- if (IS_BIG_ENDIAN())
- ctx->doByteReverse = 1;
- else
- ctx->doByteReverse = 0;
+
+ if (IS_BIG_ENDIAN())
+ ctx->doByteReverse = 1;
+ else
+ ctx->doByteReverse = 0;
}
/**
* md5_update: add a buffer to md5 hash computation
- * @ctx: conetxt object used for md5 computaion
+ * @ctx: context object used for md5 computaion
* @buf: buffer to add
* @len: buffer length
- *
+ *
* Update context to reflect the concatenation of another buffer full
* of bytes. Use this to progressively construct an md5 hash.
**/
-void
-md5_update (MD5Context *ctx, const guchar *buf, guint32 len)
+void
+md5_update(MD5Context *ctx, const guchar *buf, guint32 len)
{
guint32 t;
-
+
/* Update bitcount */
-
+
t = ctx->bits[0];
if ((ctx->bits[0] = t + ((guint32) len << 3)) < t)
ctx->bits[1]++; /* Carry from low to high */
ctx->bits[1] += len >> 29;
-
+
t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
-
+
/* Handle any leading odd-sized chunks */
-
+
if (t) {
guchar *p = (guchar *) ctx->in + t;
-
+
t = 64 - t;
if (len < t) {
- memcpy (p, buf, len);
+ memcpy(p, buf, len);
return;
}
- memcpy (p, buf, t);
+ memcpy(p, buf, t);
if (ctx->doByteReverse)
- _byte_reverse (ctx->in, 16);
- md5_transform (ctx->buf, (guint32 *) ctx->in);
+ _byte_reverse(ctx->in, 16);
+ md5_transform(ctx->buf, (guint32 *) ctx->in);
buf += t;
len -= t;
}
/* Process data in 64-byte chunks */
-
+
while (len >= 64) {
- memcpy (ctx->in, buf, 64);
+ memcpy(ctx->in, buf, 64);
if (ctx->doByteReverse)
- _byte_reverse (ctx->in, 16);
- md5_transform (ctx->buf, (guint32 *) ctx->in);
+ _byte_reverse(ctx->in, 16);
+ md5_transform(ctx->buf, (guint32 *) ctx->in);
buf += 64;
len -= 64;
}
-
- /* Handle any remaining bytes of data. */
-
- memcpy (ctx->in, buf, len);
-}
-
+ /* Handle any remaining bytes of data. */
+ memcpy(ctx->in, buf, len);
+}
/*
- * Final wrapup - pad to 64-byte boundary with the bit pattern
+ * Final wrapup - pad to 64-byte boundary with the bit pattern
* 1 0* (64-bit count of bits processed, MSB-first)
*/
/**
* md5_final: copy the final md5 hash to a bufer
* @digest: 16 bytes buffer
* @ctx: context containing the calculated md5
- *
+ *
* copy the final md5 hash to a bufer
**/
-void
-md5_final (MD5Context *ctx, guchar digest[16])
+void
+md5_final(MD5Context *ctx, guchar digest[16])
{
guint32 count;
guchar *p;
-
+
/* Compute number of bytes mod 64 */
count = (ctx->bits[0] >> 3) & 0x3F;
-
+
/* Set the first char of padding to 0x80. This is safe since there is
always at least one byte free */
p = ctx->in + count;
*p++ = 0x80;
-
+
/* Bytes of padding needed to make 64 bytes */
count = 64 - 1 - count;
-
+
/* Pad out to 56 mod 64 */
if (count < 8) {
/* Two lots of padding: Pad the first block to 64 bytes */
- memset (p, 0, count);
+ memset(p, 0, count);
if (ctx->doByteReverse)
- _byte_reverse (ctx->in, 16);
- md5_transform (ctx->buf, (guint32 *) ctx->in);
-
+ _byte_reverse(ctx->in, 16);
+ md5_transform(ctx->buf, (guint32 *) ctx->in);
+
/* Now fill the next block with 56 bytes */
- memset (ctx->in, 0, 56);
+ memset(ctx->in, 0, 56);
} else {
/* Pad block to 56 bytes */
- memset (p, 0, count - 8);
+ memset(p, 0, count - 8);
}
if (ctx->doByteReverse)
- _byte_reverse (ctx->in, 14);
-
+ _byte_reverse(ctx->in, 14);
+
/* Append length in bits and transform */
((guint32 *) ctx->in)[14] = ctx->bits[0];
((guint32 *) ctx->in)[15] = ctx->bits[1];
-
- md5_transform (ctx->buf, (guint32 *) ctx->in);
+
+ md5_transform(ctx->buf, (guint32 *) ctx->in);
if (ctx->doByteReverse)
- _byte_reverse ((guchar *) ctx->buf, 4);
- memcpy (digest, ctx->buf, 16);
+ _byte_reverse((guchar *) ctx->buf, 4);
+ memcpy(digest, ctx->buf, 16);
}
* reflect the addition of 16 longwords of new data. md5_Update blocks
* the data and converts bytes into longwords for this routine.
*/
-static void
-md5_transform (guint32 buf[4], const guint32 in[16])
+static void
+md5_transform(guint32 buf[4], const guint32 in[16])
{
register guint32 a, b, c, d;
-
+
a = buf[0];
b = buf[1];
c = buf[2];
d = buf[3];
-
- MD5STEP (F1, a, b, c, d, in[0] + 0xd76aa478, 7);
- MD5STEP (F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
- MD5STEP (F1, c, d, a, b, in[2] + 0x242070db, 17);
- MD5STEP (F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
- MD5STEP (F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
- MD5STEP (F1, d, a, b, c, in[5] + 0x4787c62a, 12);
- MD5STEP (F1, c, d, a, b, in[6] + 0xa8304613, 17);
- MD5STEP (F1, b, c, d, a, in[7] + 0xfd469501, 22);
- MD5STEP (F1, a, b, c, d, in[8] + 0x698098d8, 7);
- MD5STEP (F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
- MD5STEP (F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
- MD5STEP (F1, b, c, d, a, in[11] + 0x895cd7be, 22);
- MD5STEP (F1, a, b, c, d, in[12] + 0x6b901122, 7);
- MD5STEP (F1, d, a, b, c, in[13] + 0xfd987193, 12);
- MD5STEP (F1, c, d, a, b, in[14] + 0xa679438e, 17);
- MD5STEP (F1, b, c, d, a, in[15] + 0x49b40821, 22);
-
- MD5STEP (F2, a, b, c, d, in[1] + 0xf61e2562, 5);
- MD5STEP (F2, d, a, b, c, in[6] + 0xc040b340, 9);
- MD5STEP (F2, c, d, a, b, in[11] + 0x265e5a51, 14);
- MD5STEP (F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
- MD5STEP (F2, a, b, c, d, in[5] + 0xd62f105d, 5);
- MD5STEP (F2, d, a, b, c, in[10] + 0x02441453, 9);
- MD5STEP (F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
- MD5STEP (F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
- MD5STEP (F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
- MD5STEP (F2, d, a, b, c, in[14] + 0xc33707d6, 9);
- MD5STEP (F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
- MD5STEP (F2, b, c, d, a, in[8] + 0x455a14ed, 20);
- MD5STEP (F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
- MD5STEP (F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
- MD5STEP (F2, c, d, a, b, in[7] + 0x676f02d9, 14);
- MD5STEP (F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
-
- MD5STEP (F3, a, b, c, d, in[5] + 0xfffa3942, 4);
- MD5STEP (F3, d, a, b, c, in[8] + 0x8771f681, 11);
- MD5STEP (F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
- MD5STEP (F3, b, c, d, a, in[14] + 0xfde5380c, 23);
- MD5STEP (F3, a, b, c, d, in[1] + 0xa4beea44, 4);
- MD5STEP (F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
- MD5STEP (F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
- MD5STEP (F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
- MD5STEP (F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
- MD5STEP (F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
- MD5STEP (F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
- MD5STEP (F3, b, c, d, a, in[6] + 0x04881d05, 23);
- MD5STEP (F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
- MD5STEP (F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
- MD5STEP (F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
- MD5STEP (F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
-
- MD5STEP (F4, a, b, c, d, in[0] + 0xf4292244, 6);
- MD5STEP (F4, d, a, b, c, in[7] + 0x432aff97, 10);
- MD5STEP (F4, c, d, a, b, in[14] + 0xab9423a7, 15);
- MD5STEP (F4, b, c, d, a, in[5] + 0xfc93a039, 21);
- MD5STEP (F4, a, b, c, d, in[12] + 0x655b59c3, 6);
- MD5STEP (F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
- MD5STEP (F4, c, d, a, b, in[10] + 0xffeff47d, 15);
- MD5STEP (F4, b, c, d, a, in[1] + 0x85845dd1, 21);
- MD5STEP (F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
- MD5STEP (F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
- MD5STEP (F4, c, d, a, b, in[6] + 0xa3014314, 15);
- MD5STEP (F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
- MD5STEP (F4, a, b, c, d, in[4] + 0xf7537e82, 6);
- MD5STEP (F4, d, a, b, c, in[11] + 0xbd3af235, 10);
- MD5STEP (F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
- MD5STEP (F4, b, c, d, a, in[9] + 0xeb86d391, 21);
-
+
+ MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
+ MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
+ MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
+ MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
+ MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
+ MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
+ MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
+ MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
+ MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
+ MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
+ MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
+ MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
+ MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
+ MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
+ MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
+ MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
+
+ MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
+ MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
+ MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
+ MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
+ MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
+ MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
+ MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
+ MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
+ MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
+ MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
+ MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
+ MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
+ MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
+ MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
+ MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
+ MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
+
+ MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
+ MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
+ MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
+ MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
+ MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
+ MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
+ MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
+ MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
+ MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
+ MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
+ MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
+ MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
+ MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
+ MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
+ MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
+ MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
+
+ MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
+ MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
+ MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
+ MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
+ MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
+ MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
+ MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
+ MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
+ MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
+ MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
+ MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
+ MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
+ MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
+ MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
+ MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
+ MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
+
buf[0] += a;
buf[1] += b;
buf[2] += c;
* @buffer: byte buffer
* @buffer_size: buffer size (in bytes)
* @digest: 16 bytes buffer receiving the hash code.
- *
- * Get the md5 hash of a buffer. The result is put in
+ *
+ * Get the md5 hash of a buffer. The result is put in
* the 16 bytes buffer @digest .
**/
void
-md5_get_digest (const guchar *buffer, gint buffer_size, guchar digest[16])
-{
+md5_get_digest(const guchar *buffer, gint buffer_size, guchar digest[16])
+{
MD5Context ctx;
- md5_init (&ctx);
- md5_update (&ctx, buffer, buffer_size);
- md5_final (&ctx, digest);
-
+ md5_init(&ctx);
+ md5_update(&ctx, buffer, buffer_size);
+ md5_final(&ctx, digest);
+
}
/* modified for GQView, starting here */
* @filename: file name
* @digest: 16 bytes buffer receiving the hash code.
* @return: TRUE on success
- *
- * Get the md5 hash of a file. The result is put in
+ *
+ * Get the md5 hash of a file. The result is put in
* the 16 bytes buffer @digest .
**/
gboolean md5_get_digest_from_file(const gchar *path, guchar digest[16])
-{
+{
MD5Context ctx;
guchar tmp_buf[1024];
gint nb_bytes_read;
if (!fp) return FALSE;
md5_init(&ctx);
-
- while ((nb_bytes_read = fread (tmp_buf, sizeof (guchar), 1024, fp)) > 0)
+
+ while ((nb_bytes_read = fread(tmp_buf, sizeof (guchar), sizeof(tmp_buf), fp)) > 0)
{
- md5_update (&ctx, tmp_buf, nb_bytes_read);
+ md5_update(&ctx, tmp_buf, nb_bytes_read);
}
-
+
success = (ferror(fp) == 0);
fclose(fp);
if (!success) return FALSE;
- md5_final (&ctx, digest);
+ md5_final(&ctx, digest);
return TRUE;
}
-/* does filename utf8 to filesystem encoding first */
-gboolean md5_get_digest_from_file_utf8(const gchar *path, guchar digest[16])
-{
- gboolean success;
- gchar *pathl;
-
- pathl = path_from_utf8(path);
- success = md5_get_digest_from_file(pathl, digest);
- g_free(pathl);
-
- return success;
-}
-
/* these to and from text string converters were borrowed from
* the libgnomeui library, where they are name thumb_digest_to/from_ascii
*
for (i = 0; i < 16; i++)
{
if (text[2*i] == '\0' || text[2*i+1] == '\0') return FALSE;
- digest[i] = g_ascii_xdigit_value (text[2*i]) << 4 |
- g_ascii_xdigit_value (text[2*i + 1]);
+ digest[i] = g_ascii_xdigit_value(text[2*i]) << 4 |
+ g_ascii_xdigit_value(text[2*i + 1]);
}
return TRUE;
}
-gchar *md5_text_from_file_utf8(const gchar *path, const gchar *error_text)
-{
- guchar digest[16];
-
- if (!md5_get_digest_from_file_utf8(path, digest)) return g_strdup(error_text);
-
- return md5_digest_to_text(digest);
-}
-
+/* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */
projects / geeqie.git / blobdiff