Commit 604838d5ba3eb047a2b7106411e2d819b0212c6e
2013-10-22T01:10:10
* src/base/md5.c, src/base/md5.h: Updated to recent version. * src/base/ftobjs.c: Updated; `md5.c' no longer uses `free'.
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diff --git a/ChangeLog b/ChangeLog
index 758a588..5e5e0b0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2013-10-22 Werner Lemberg <wl@gnu.org>
+
+ * src/base/md5.c, src/base/md5.h: Updated to recent version.
+
+ * src/base/ftobjs.c: Updated; `md5.c' no longer uses `free'.
+
2013-10-19 Werner Lemberg <wl@gnu.org>
[autofit] s/SMALL_TOP/X_HEIGHT/.
diff --git a/src/base/ftobjs.c b/src/base/ftobjs.c
index 3cb81a6..46429ab 100644
--- a/src/base/ftobjs.c
+++ b/src/base/ftobjs.c
@@ -56,9 +56,7 @@
#endif /* _MSC_VER */
/* it's easiest to include `md5.c' directly */
-#define free md5_free /* suppress a shadow warning */
#include "md5.c"
-#undef free
#if defined( _MSC_VER )
#pragma warning( pop )
diff --git a/src/base/md5.c b/src/base/md5.c
index 2f01c93..52d96ac 100644
--- a/src/base/md5.c
+++ b/src/base/md5.c
@@ -50,7 +50,8 @@
*/
#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 H(x, y, z) (((x) ^ (y)) ^ (z))
+#define H2(x, y, z) ((x) ^ ((y) ^ (z)))
#define I(x, y, z) ((y) ^ ((x) | ~(z)))
/*
@@ -89,13 +90,13 @@
* This processes one or more 64-byte data blocks, but does NOT update
* the bit counters. There are no alignment requirements.
*/
-static void *body(MD5_CTX *ctx, void *data, unsigned long size)
+static const void *body(MD5_CTX *ctx, const void *data, unsigned long size)
{
- unsigned char *ptr;
+ const unsigned char *ptr;
MD5_u32plus a, b, c, d;
MD5_u32plus saved_a, saved_b, saved_c, saved_d;
- ptr = (unsigned char *)data;
+ ptr = (const unsigned char *)data;
a = ctx->a;
b = ctx->b;
@@ -146,21 +147,21 @@ static void *body(MD5_CTX *ctx, void *data, unsigned long size)
/* Round 3 */
STEP(H, a, b, c, d, GET(5), 0xfffa3942, 4)
- STEP(H, d, a, b, c, GET(8), 0x8771f681, 11)
+ STEP(H2, d, a, b, c, GET(8), 0x8771f681, 11)
STEP(H, c, d, a, b, GET(11), 0x6d9d6122, 16)
- STEP(H, b, c, d, a, GET(14), 0xfde5380c, 23)
+ STEP(H2, b, c, d, a, GET(14), 0xfde5380c, 23)
STEP(H, a, b, c, d, GET(1), 0xa4beea44, 4)
- STEP(H, d, a, b, c, GET(4), 0x4bdecfa9, 11)
+ STEP(H2, d, a, b, c, GET(4), 0x4bdecfa9, 11)
STEP(H, c, d, a, b, GET(7), 0xf6bb4b60, 16)
- STEP(H, b, c, d, a, GET(10), 0xbebfbc70, 23)
+ STEP(H2, b, c, d, a, GET(10), 0xbebfbc70, 23)
STEP(H, a, b, c, d, GET(13), 0x289b7ec6, 4)
- STEP(H, d, a, b, c, GET(0), 0xeaa127fa, 11)
+ STEP(H2, d, a, b, c, GET(0), 0xeaa127fa, 11)
STEP(H, c, d, a, b, GET(3), 0xd4ef3085, 16)
- STEP(H, b, c, d, a, GET(6), 0x04881d05, 23)
+ STEP(H2, b, c, d, a, GET(6), 0x04881d05, 23)
STEP(H, a, b, c, d, GET(9), 0xd9d4d039, 4)
- STEP(H, d, a, b, c, GET(12), 0xe6db99e5, 11)
+ STEP(H2, d, a, b, c, GET(12), 0xe6db99e5, 11)
STEP(H, c, d, a, b, GET(15), 0x1fa27cf8, 16)
- STEP(H, b, c, d, a, GET(2), 0xc4ac5665, 23)
+ STEP(H2, b, c, d, a, GET(2), 0xc4ac5665, 23)
/* Round 4 */
STEP(I, a, b, c, d, GET(0), 0xf4292244, 6)
@@ -207,10 +208,10 @@ void MD5_Init(MD5_CTX *ctx)
ctx->hi = 0;
}
-void MD5_Update(MD5_CTX *ctx, void *data, unsigned long size)
+void MD5_Update(MD5_CTX *ctx, const void *data, unsigned long size)
{
MD5_u32plus saved_lo;
- unsigned long used, free;
+ unsigned long used, available;
saved_lo = ctx->lo;
if ((ctx->lo = (saved_lo + size) & 0x1fffffff) < saved_lo)
@@ -220,16 +221,16 @@ void MD5_Update(MD5_CTX *ctx, void *data, unsigned long size)
used = saved_lo & 0x3f;
if (used) {
- free = 64 - used;
+ available = 64 - used;
- if (size < free) {
+ if (size < available) {
memcpy(&ctx->buffer[used], data, size);
return;
}
- memcpy(&ctx->buffer[used], data, free);
- data = (unsigned char *)data + free;
- size -= free;
+ memcpy(&ctx->buffer[used], data, available);
+ data = (const unsigned char *)data + available;
+ size -= available;
body(ctx, ctx->buffer, 64);
}
@@ -243,22 +244,22 @@ void MD5_Update(MD5_CTX *ctx, void *data, unsigned long size)
void MD5_Final(unsigned char *result, MD5_CTX *ctx)
{
- unsigned long used, free;
+ unsigned long used, available;
used = ctx->lo & 0x3f;
ctx->buffer[used++] = 0x80;
- free = 64 - used;
+ available = 64 - used;
- if (free < 8) {
- memset(&ctx->buffer[used], 0, free);
+ if (available < 8) {
+ memset(&ctx->buffer[used], 0, available);
body(ctx, ctx->buffer, 64);
used = 0;
- free = 64;
+ available = 64;
}
- memset(&ctx->buffer[used], 0, free - 8);
+ memset(&ctx->buffer[used], 0, available - 8);
ctx->lo <<= 3;
ctx->buffer[56] = ctx->lo;
diff --git a/src/base/md5.h b/src/base/md5.h
index f1a6857..2da44bf 100644
--- a/src/base/md5.h
+++ b/src/base/md5.h
@@ -39,7 +39,7 @@ typedef struct {
} MD5_CTX;
extern void MD5_Init(MD5_CTX *ctx);
-extern void MD5_Update(MD5_CTX *ctx, void *data, unsigned long size);
+extern void MD5_Update(MD5_CTX *ctx, const void *data, unsigned long size);
extern void MD5_Final(unsigned char *result, MD5_CTX *ctx);
#endif