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Diffstat (limited to 'contrib/pgcrypto/crypt-blowfish.c')
-rw-r--r--contrib/pgcrypto/crypt-blowfish.c175
1 files changed, 106 insertions, 69 deletions
diff --git a/contrib/pgcrypto/crypt-blowfish.c b/contrib/pgcrypto/crypt-blowfish.c
index d60807f2417..3bc8e19fa90 100644
--- a/contrib/pgcrypto/crypt-blowfish.c
+++ b/contrib/pgcrypto/crypt-blowfish.c
@@ -57,10 +57,11 @@ typedef unsigned int BF_word;
typedef BF_word BF_key[BF_N + 2];
-typedef struct {
- BF_word S[4][0x100];
- BF_key P;
-} BF_ctx;
+typedef struct
+{
+ BF_word S[4][0x100];
+ BF_key P;
+} BF_ctx;
/*
* Magic IV for 64 Blowfish encryptions that we do at the end.
@@ -347,7 +348,7 @@ static BF_ctx BF_init_state = {
};
static unsigned char BF_itoa64[64 + 1] =
- "./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+"./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
static unsigned char BF_atoi64[0x60] = {
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 0, 1,
@@ -367,22 +368,30 @@ do { \
(dst) = tmp; \
} while (0)
-static int BF_decode(BF_word *dst, const char *src, int size)
+static int
+BF_decode(BF_word * dst, const char *src, int size)
{
- unsigned char *dptr = (unsigned char *)dst;
+ unsigned char *dptr = (unsigned char *) dst;
unsigned char *end = dptr + size;
- unsigned char *sptr = (unsigned char *)src;
- unsigned int tmp, c1, c2, c3, c4;
-
- do {
+ unsigned char *sptr = (unsigned char *) src;
+ unsigned int tmp,
+ c1,
+ c2,
+ c3,
+ c4;
+
+ do
+ {
BF_safe_atoi64(c1, *sptr++);
BF_safe_atoi64(c2, *sptr++);
*dptr++ = (c1 << 2) | ((c2 & 0x30) >> 4);
- if (dptr >= end) break;
+ if (dptr >= end)
+ break;
BF_safe_atoi64(c3, *sptr++);
*dptr++ = ((c2 & 0x0F) << 4) | ((c3 & 0x3C) >> 2);
- if (dptr >= end) break;
+ if (dptr >= end)
+ break;
BF_safe_atoi64(c4, *sptr++);
*dptr++ = ((c3 & 0x03) << 6) | c4;
@@ -391,18 +400,22 @@ static int BF_decode(BF_word *dst, const char *src, int size)
return 0;
}
-static void BF_encode(char *dst, const BF_word *src, int size)
+static void
+BF_encode(char *dst, const BF_word * src, int size)
{
- unsigned char *sptr = (unsigned char *)src;
+ unsigned char *sptr = (unsigned char *) src;
unsigned char *end = sptr + size;
- unsigned char *dptr = (unsigned char *)dst;
- unsigned int c1, c2;
+ unsigned char *dptr = (unsigned char *) dst;
+ unsigned int c1,
+ c2;
- do {
+ do
+ {
c1 = *sptr++;
*dptr++ = BF_itoa64[c1 >> 2];
c1 = (c1 & 0x03) << 4;
- if (sptr >= end) {
+ if (sptr >= end)
+ {
*dptr++ = BF_itoa64[c1];
break;
}
@@ -411,7 +424,8 @@ static void BF_encode(char *dst, const BF_word *src, int size)
c1 |= c2 >> 4;
*dptr++ = BF_itoa64[c1];
c1 = (c2 & 0x0f) << 2;
- if (sptr >= end) {
+ if (sptr >= end)
+ {
*dptr++ = BF_itoa64[c1];
break;
}
@@ -423,18 +437,20 @@ static void BF_encode(char *dst, const BF_word *src, int size)
} while (sptr < end);
}
-static void BF_swap(BF_word *x, int count)
+static void
+BF_swap(BF_word * x, int count)
{
- static int endianness_check = 1;
- char *is_little_endian = (char *)&endianness_check;
- BF_word tmp;
+ static int endianness_check = 1;
+ char *is_little_endian = (char *) &endianness_check;
+ BF_word tmp;
if (*is_little_endian)
- do {
- tmp = *x;
- tmp = (tmp << 16) | (tmp >> 16);
- *x++ = ((tmp & 0x00FF00FF) << 8) | ((tmp >> 8) & 0x00FF00FF);
- } while (--count);
+ do
+ {
+ tmp = *x;
+ tmp = (tmp << 16) | (tmp >> 16);
+ *x++ = ((tmp & 0x00FF00FF) << 8) | ((tmp >> 8) & 0x00FF00FF);
+ } while (--count);
}
#if BF_SCALE
@@ -504,7 +520,8 @@ static void BF_swap(BF_word *x, int count)
#if BF_ASM
-extern void _BF_body_r(BF_ctx *ctx);
+extern void _BF_body_r(BF_ctx * ctx);
+
#define BF_body() \
_BF_body_r(&data.ctx);
@@ -527,22 +544,28 @@ extern void _BF_body_r(BF_ctx *ctx);
*(ptr - 2) = L; \
*(ptr - 1) = R; \
} while (ptr < &data.ctx.S[3][0xFF]);
-
#endif
-static void BF_set_key(const char *key, BF_key expanded, BF_key initial)
+static void
+BF_set_key(const char *key, BF_key expanded, BF_key initial)
{
const char *ptr = key;
- int i, j;
- BF_word tmp;
+ int i,
+ j;
+ BF_word tmp;
- for (i = 0; i < BF_N + 2; i++) {
+ for (i = 0; i < BF_N + 2; i++)
+ {
tmp = 0;
- for (j = 0; j < 4; j++) {
+ for (j = 0; j < 4; j++)
+ {
tmp <<= 8;
tmp |= *ptr;
- if (!*ptr) ptr = key; else ptr++;
+ if (!*ptr)
+ ptr = key;
+ else
+ ptr++;
}
expanded[i] = tmp;
@@ -550,41 +573,51 @@ static void BF_set_key(const char *key, BF_key expanded, BF_key initial)
}
}
-char *_crypt_blowfish_rn(const char *key, const char *setting,
- char *output, int size)
+char *
+_crypt_blowfish_rn(const char *key, const char *setting,
+ char *output, int size)
{
- struct {
- BF_ctx ctx;
- BF_key expanded_key;
- union {
- BF_word salt[4];
- BF_word output[6];
- } binary;
- } data;
- BF_word L, R;
- BF_word tmp1, tmp2, tmp3, tmp4;
- BF_word *ptr;
- BF_word count;
- int i;
-
- if (size < 7 + 22 + 31 + 1) {
+ struct
+ {
+ BF_ctx ctx;
+ BF_key expanded_key;
+ union
+ {
+ BF_word salt[4];
+ BF_word output[6];
+ } binary;
+ } data;
+ BF_word L,
+ R;
+ BF_word tmp1,
+ tmp2,
+ tmp3,
+ tmp4;
+ BF_word *ptr;
+ BF_word count;
+ int i;
+
+ if (size < 7 + 22 + 31 + 1)
+ {
__set_errno(ERANGE);
return NULL;
}
if (setting[0] != '$' ||
- setting[1] != '2' ||
- setting[2] != 'a' ||
- setting[3] != '$' ||
- setting[4] < '0' || setting[4] > '3' ||
- setting[5] < '0' || setting[5] > '9' ||
- setting[6] != '$') {
+ setting[1] != '2' ||
+ setting[2] != 'a' ||
+ setting[3] != '$' ||
+ setting[4] < '0' || setting[4] > '3' ||
+ setting[5] < '0' || setting[5] > '9' ||
+ setting[6] != '$')
+ {
__set_errno(EINVAL);
return NULL;
}
- count = (BF_word)1 << ((setting[4] - '0') * 10 + (setting[5] - '0'));
- if (count < 16 || BF_decode(data.binary.salt, &setting[7], 16)) {
+ count = (BF_word) 1 << ((setting[4] - '0') * 10 + (setting[5] - '0'));
+ if (count < 16 || BF_decode(data.binary.salt, &setting[7], 16))
+ {
memset(data.binary.salt, 0, sizeof(data.binary.salt));
__set_errno(EINVAL);
return NULL;
@@ -596,7 +629,8 @@ char *_crypt_blowfish_rn(const char *key, const char *setting,
memcpy(data.ctx.S, BF_init_state.S, sizeof(data.ctx.S));
L = R = 0;
- for (i = 0; i < BF_N + 2; i += 2) {
+ for (i = 0; i < BF_N + 2; i += 2)
+ {
L ^= data.binary.salt[i & 2];
R ^= data.binary.salt[(i & 2) + 1];
BF_ENCRYPT;
@@ -605,7 +639,8 @@ char *_crypt_blowfish_rn(const char *key, const char *setting,
}
ptr = data.ctx.S[0];
- do {
+ do
+ {
ptr += 4;
L ^= data.binary.salt[(BF_N + 2) & 3];
R ^= data.binary.salt[(BF_N + 3) & 3];
@@ -620,7 +655,8 @@ char *_crypt_blowfish_rn(const char *key, const char *setting,
*(ptr - 1) = R;
} while (ptr < &data.ctx.S[3][0xFF]);
- do {
+ do
+ {
data.ctx.P[0] ^= data.expanded_key[0];
data.ctx.P[1] ^= data.expanded_key[1];
data.ctx.P[2] ^= data.expanded_key[2];
@@ -668,12 +704,14 @@ char *_crypt_blowfish_rn(const char *key, const char *setting,
BF_body();
} while (--count);
- for (i = 0; i < 6; i += 2) {
+ for (i = 0; i < 6; i += 2)
+ {
L = BF_magic_w[i];
R = BF_magic_w[i + 1];
count = 64;
- do {
+ do
+ {
BF_ENCRYPT;
} while (--count);
@@ -683,7 +721,7 @@ char *_crypt_blowfish_rn(const char *key, const char *setting,
memcpy(output, setting, 7 + 22 - 1);
output[7 + 22 - 1] = BF_itoa64[(int)
- BF_atoi64[(int)setting[7 + 22 - 1] - 0x20] & 0x30];
+ BF_atoi64[(int) setting[7 + 22 - 1] - 0x20] & 0x30];
/* This has to be bug-compatible with the original implementation, so
* only encode 23 of the 24 bytes. :-) */
@@ -698,4 +736,3 @@ char *_crypt_blowfish_rn(const char *key, const char *setting,
return output;
}
-
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-08 00:12:14 +0000