glibc/crypt_blowfish-gensalt.patch

Index: crypt_blowfish-1.2/crypt_blowfish.c
===================================================================
--- crypt_blowfish-1.2.orig/crypt_blowfish.c
+++ crypt_blowfish-1.2/crypt_blowfish.c
@@ -872,31 +872,3 @@ char *_crypt_blowfish_rn(const char *key
 	__set_errno(EINVAL); /* pretend we don't support this hash type */
 	return NULL;
 }
-
-char *_crypt_gensalt_blowfish_rn(const char *prefix, unsigned long count,
-	const char *input, int size, char *output, int output_size)
-{
-	if (size < 16 || output_size < 7 + 22 + 1 ||
-	    (count && (count < 4 || count > 31)) ||
-	    prefix[0] != '$' || prefix[1] != '2' ||
-	    (prefix[2] != 'a' && prefix[2] != 'y')) {
-		if (output_size > 0) output[0] = '\0';
-		__set_errno((output_size < 7 + 22 + 1) ? ERANGE : EINVAL);
-		return NULL;
-	}
-
-	if (!count) count = 5;
-
-	output[0] = '$';
-	output[1] = '2';
-	output[2] = prefix[2];
-	output[3] = '$';
-	output[4] = '0' + count / 10;
-	output[5] = '0' + count % 10;
-	output[6] = '$';
-
-	BF_encode(&output[7], (const BF_word *)input, 16);
-	output[7 + 22] = '\0';
-
-	return output;
-}
Index: crypt_blowfish-1.2/crypt_blowfish.h
===================================================================
--- crypt_blowfish-1.2.orig/crypt_blowfish.h
+++ crypt_blowfish-1.2/crypt_blowfish.h
@@ -20,8 +20,5 @@
 extern int _crypt_output_magic(const char *setting, char *output, int size);
 extern char *_crypt_blowfish_rn(const char *key, const char *setting,
 	char *output, int size);
-extern char *_crypt_gensalt_blowfish_rn(const char *prefix,
-	unsigned long count,
-	const char *input, int size, char *output, int output_size);
 
 #endif
Index: crypt_blowfish-1.2/crypt_gensalt.c
===================================================================
--- crypt_blowfish-1.2.orig/crypt_gensalt.c
+++ crypt_blowfish-1.2/crypt_gensalt.c
@@ -180,3 +180,69 @@ error:
 	errno = ENOMEM;
 	return NULL;
 }
+
+
+typedef unsigned int BF_word;
+
+static const unsigned char BF_itoa64[64 + 1] =
+	"./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+
+static void BF_encode(char *dst, const BF_word *src, int size)
+{
+	const unsigned char *sptr = (const unsigned char *)src;
+	const unsigned char *end = sptr + size;
+	unsigned char *dptr = (unsigned char *)dst;
+	unsigned int c1, c2;
+
+	do {
+		c1 = *sptr++;
+		*dptr++ = BF_itoa64[c1 >> 2];
+		c1 = (c1 & 0x03) << 4;
+		if (sptr >= end) {
+			*dptr++ = BF_itoa64[c1];
+			break;
+		}
+
+		c2 = *sptr++;
+		c1 |= c2 >> 4;
+		*dptr++ = BF_itoa64[c1];
+		c1 = (c2 & 0x0f) << 2;
+		if (sptr >= end) {
+			*dptr++ = BF_itoa64[c1];
+			break;
+		}
+
+		c2 = *sptr++;
+		c1 |= c2 >> 6;
+		*dptr++ = BF_itoa64[c1];
+		*dptr++ = BF_itoa64[c2 & 0x3f];
+	} while (sptr < end);
+}
+
+char *_crypt_gensalt_blowfish_rn(const char *prefix, unsigned long count,
+	const char *input, int size, char *output, int output_size)
+{
+	if (size < 16 || output_size < 7 + 22 + 1 ||
+	    (count && (count < 4 || count > 31)) ||
+	    prefix[0] != '$' || prefix[1] != '2' ||
+	    (prefix[2] != 'a' && prefix[2] != 'y')) {
+		if (output_size > 0) output[0] = '\0';
+		__set_errno((output_size < 7 + 22 + 1) ? ERANGE : EINVAL);
+		return NULL;
+	}
+
+	if (!count) count = 5;
+
+	output[0] = '$';
+	output[1] = '2';
+	output[2] = prefix[2];
+	output[3] = '$';
+	output[4] = '0' + count / 10;
+	output[5] = '0' + count % 10;
+	output[6] = '$';
+
+	BF_encode(&output[7], (const BF_word *)input, 16);
+	output[7 + 22] = '\0';
+
+	return output;
+}
Index: crypt_blowfish-1.2/crypt_gensalt.h
===================================================================
--- crypt_blowfish-1.2.orig/crypt_gensalt.h
+++ crypt_blowfish-1.2/crypt_gensalt.h
@@ -28,5 +28,8 @@ extern char *_crypt_gensalt_md5_rn(const
 	const char *input, int size, char *output, int output_size);
 extern char *_crypt_gensalt_sha2_rn(const char *prefix, unsigned long count,
 	const char *input, int size, char *output, int output_size);
+extern char *_crypt_gensalt_blowfish_rn(const char *prefix,
+	unsigned long count,
+	const char *input, int size, char *output, int output_size);
 
 #endif
Index: crypt_blowfish-1.2/wrapper-gensalt.c
===================================================================
--- /dev/null
+++ crypt_blowfish-1.2/wrapper-gensalt.c
@@ -0,0 +1,113 @@
+/*
+ * Written by Solar Designer <solar at openwall.com> in 2000-2011.
+ * 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) 2000-2011 Solar Designer 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.
+ *
+ * See crypt_blowfish.c for more information.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <errno.h>
+#ifndef __set_errno
+#define __set_errno(val) errno = (val)
+#endif
+
+#define CRYPT_GENSALT_OUTPUT_SIZE	(7 + 22 + 1)
+
+#if defined(__GLIBC__) && defined(_LIBC)
+#define __SKIP_GNU
+#endif
+#include "ow-crypt.h"
+
+#include "crypt_gensalt.h"
+
+#if !(defined(__GLIBC__) && defined(_LIBC))
+#define __crypt_gensalt_rn crypt_gensalt_rn
+#define __crypt_gensalt_ra crypt_gensalt_ra
+#define __crypt_gensalt crypt_gensalt
+#endif
+
+char *__crypt_gensalt_rn(const char *prefix, unsigned long count,
+	const char *input, int size, char *output, int output_size)
+{
+	char *(*use)(const char *_prefix, unsigned long _count,
+		const char *_input, int _size,
+		char *_output, int _output_size);
+
+	/* This may be supported on some platforms in the future */
+	if (!input) {
+		__set_errno(EINVAL);
+		return NULL;
+	}
+
+	if (!strncmp(prefix, "$5$", 3) || !strncmp(prefix, "$6$", 3))
+		use = _crypt_gensalt_sha2_rn;
+	else
+	if (!strncmp(prefix, "$2a$", 4) || !strncmp(prefix, "$2y$", 4))
+		use = _crypt_gensalt_blowfish_rn;
+	else
+	if (!strncmp(prefix, "$1$", 3))
+		use = _crypt_gensalt_md5_rn;
+	else
+	if (prefix[0] == '_')
+		use = _crypt_gensalt_extended_rn;
+	else
+	if (!prefix[0] ||
+	    (prefix[0] && prefix[1] &&
+	    memchr(_crypt_itoa64, prefix[0], 64) &&
+	    memchr(_crypt_itoa64, prefix[1], 64)))
+		use = _crypt_gensalt_traditional_rn;
+	else {
+		__set_errno(EINVAL);
+		return NULL;
+	}
+
+	return use(prefix, count, input, size, output, output_size);
+}
+
+char *__crypt_gensalt_ra(const char *prefix, unsigned long count,
+	const char *input, int size)
+{
+	char output[CRYPT_GENSALT_OUTPUT_SIZE];
+	char *retval;
+
+	retval = __crypt_gensalt_rn(prefix, count,
+		input, size, output, sizeof(output));
+
+	if (retval) {
+		retval = strdup(retval);
+#ifndef __GLIBC__
+		/* strdup(3) on glibc sets errno, so we don't need to bother */
+		if (!retval)
+			__set_errno(ENOMEM);
+#endif
+	}
+
+	return retval;
+}
+
+char *__crypt_gensalt(const char *prefix, unsigned long count,
+	const char *input, int size)
+{
+	static char output[CRYPT_GENSALT_OUTPUT_SIZE];
+
+	return __crypt_gensalt_rn(prefix, count,
+		input, size, output, sizeof(output));
+}
+
+#if defined(__GLIBC__) && defined(_LIBC)
+weak_alias(__crypt_gensalt_rn, crypt_gensalt_rn)
+weak_alias(__crypt_gensalt_ra, crypt_gensalt_ra)
+weak_alias(__crypt_gensalt, crypt_gensalt)
+#endif
+
Index: crypt_blowfish-1.2/wrapper.c
===================================================================
--- crypt_blowfish-1.2.orig/wrapper.c
+++ crypt_blowfish-1.2/wrapper.c
@@ -35,7 +35,6 @@
 #endif
 
 #define CRYPT_OUTPUT_SIZE		(7 + 22 + 31 + 1)
-#define CRYPT_GENSALT_OUTPUT_SIZE	(7 + 22 + 1)
 
 #if defined(__GLIBC__) && defined(_LIBC)
 #define __SKIP_GNU
@@ -43,7 +42,6 @@
 #include "ow-crypt.h"
 
 #include "crypt_blowfish.h"
-#include "crypt_gensalt.h"
 
 #if defined(__GLIBC__) && defined(_LIBC)
 /* crypt.h from glibc-crypt-2.1 will define struct crypt_data for us */
@@ -209,88 +207,11 @@ char *crypt(const char *key, const char
 		crypt_rn(key, setting, output, sizeof(output)),
 		setting, output, sizeof(output));
 }
-
-#define __crypt_gensalt_rn crypt_gensalt_rn
-#define __crypt_gensalt_ra crypt_gensalt_ra
-#define __crypt_gensalt crypt_gensalt
-#endif
-
-char *__crypt_gensalt_rn(const char *prefix, unsigned long count,
-	const char *input, int size, char *output, int output_size)
-{
-	char *(*use)(const char *_prefix, unsigned long _count,
-		const char *_input, int _size,
-		char *_output, int _output_size);
-
-	/* This may be supported on some platforms in the future */
-	if (!input) {
-		__set_errno(EINVAL);
-		return NULL;
-	}
-
-	if (!strncmp(prefix, "$5$", 3) || !strncmp(prefix, "$6$", 3))
-		use = _crypt_gensalt_sha2_rn;
-	else
-	if (!strncmp(prefix, "$2a$", 4) || !strncmp(prefix, "$2y$", 4))
-		use = _crypt_gensalt_blowfish_rn;
-	else
-	if (!strncmp(prefix, "$1$", 3))
-		use = _crypt_gensalt_md5_rn;
-	else
-	if (prefix[0] == '_')
-		use = _crypt_gensalt_extended_rn;
-	else
-	if (!prefix[0] ||
-	    (prefix[0] && prefix[1] &&
-	    memchr(_crypt_itoa64, prefix[0], 64) &&
-	    memchr(_crypt_itoa64, prefix[1], 64)))
-		use = _crypt_gensalt_traditional_rn;
-	else {
-		__set_errno(EINVAL);
-		return NULL;
-	}
-
-	return use(prefix, count, input, size, output, output_size);
-}
-
-char *__crypt_gensalt_ra(const char *prefix, unsigned long count,
-	const char *input, int size)
-{
-	char output[CRYPT_GENSALT_OUTPUT_SIZE];
-	char *retval;
-
-	retval = __crypt_gensalt_rn(prefix, count,
-		input, size, output, sizeof(output));
-
-	if (retval) {
-		retval = strdup(retval);
-#ifndef __GLIBC__
-		/* strdup(3) on glibc sets errno, so we don't need to bother */
-		if (!retval)
-			__set_errno(ENOMEM);
 #endif
-	}
-
-	return retval;
-}
-
-char *__crypt_gensalt(const char *prefix, unsigned long count,
-	const char *input, int size)
-{
-	static char output[CRYPT_GENSALT_OUTPUT_SIZE];
-
-	return __crypt_gensalt_rn(prefix, count,
-		input, size, output, sizeof(output));
-}
 
 #if defined(__GLIBC__) && defined(_LIBC)
-weak_alias(__crypt_rn, crypt_rn)
-weak_alias(__crypt_ra, crypt_ra)
 weak_alias(__crypt_r, crypt_r)
 weak_alias(__crypt, crypt)
-weak_alias(__crypt_gensalt_rn, crypt_gensalt_rn)
-weak_alias(__crypt_gensalt_ra, crypt_gensalt_ra)
-weak_alias(__crypt_gensalt, crypt_gensalt)
 weak_alias(crypt, fcrypt)
 #endif