diff options
Diffstat (limited to 'ext/standard/base64.c')
| -rw-r--r-- | ext/standard/base64.c | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/ext/standard/base64.c b/ext/standard/base64.c deleted file mode 100644 index fcec86bbba..0000000000 --- a/ext/standard/base64.c +++ /dev/null @@ -1,193 +0,0 @@ -/* - +----------------------------------------------------------------------+ - | PHP version 4.0 | - +----------------------------------------------------------------------+ - | Copyright (c) 1997, 1998, 1999 The PHP Group | - +----------------------------------------------------------------------+ - | This source file is subject to version 2.0 of the PHP license, | - | that is bundled with this package in the file LICENSE, and is | - | available at through the world-wide-web at | - | http://www.php.net/license/2_0.txt. | - | If you did not receive a copy of the PHP license and are unable to | - | obtain it through the world-wide-web, please send a note to | - | license@php.net so we can mail you a copy immediately. | - +----------------------------------------------------------------------+ - | Author: Jim Winstead (jimw@php.net) | - +----------------------------------------------------------------------+ - */ -/* $Id$ */ - -#include <string.h> - -#include "php.h" -#include "base64.h" - -static char base64_table[] = - { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', - 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', - 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', - 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', - '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/', '\0' - }; -static char base64_pad = '='; - -unsigned char *_php3_base64_encode(const unsigned char *string, int length, int *ret_length) { - const unsigned char *current = string; - int i = 0; - unsigned char *result = (unsigned char *)emalloc(((length + 3 - length % 3) * 4 / 3 + 1) * sizeof(char)); - - while (length > 2) { /* keep going until we have less than 24 bits */ - result[i++] = base64_table[current[0] >> 2]; - result[i++] = base64_table[((current[0] & 0x03) << 4) + (current[1] >> 4)]; - result[i++] = base64_table[((current[1] & 0x0f) << 2) + (current[2] >> 6)]; - result[i++] = base64_table[current[2] & 0x3f]; - - current += 3; - length -= 3; /* we just handle 3 octets of data */ - } - - /* now deal with the tail end of things */ - if (length != 0) { - result[i++] = base64_table[current[0] >> 2]; - if (length > 1) { - result[i++] = base64_table[((current[0] & 0x03) << 4) + (current[1] >> 4)]; - result[i++] = base64_table[(current[1] & 0x0f) << 2]; - result[i++] = base64_pad; - } - else { - result[i++] = base64_table[(current[0] & 0x03) << 4]; - result[i++] = base64_pad; - result[i++] = base64_pad; - } - } - if(ret_length) { - *ret_length = i; - } - result[i] = '\0'; - return result; -} - -/* as above, but backwards. :) */ -unsigned char *_php3_base64_decode(const unsigned char *string, int length, int *ret_length) { - const unsigned char *current = string; - int ch, i = 0, j = 0, k; - /* this sucks for threaded environments */ - static short reverse_table[256]; - static int table_built; - unsigned char *result; - - if (++table_built == 1) { - char *chp; - for(ch = 0; ch < 256; ch++) { - chp = strchr(base64_table, ch); - if(chp) { - reverse_table[ch] = chp - base64_table; - } else { - reverse_table[ch] = -1; - } - } - } - - result = (unsigned char *)emalloc((length / 4 * 3 + 1) * sizeof(char)); - if (result == NULL) { - return NULL; - } - - /* run through the whole string, converting as we go */ - while ((ch = *current++) != '\0') { - if (ch == base64_pad) break; - ch = reverse_table[ch]; - if (ch < 0) continue; - - switch(i % 4) { - case 0: - result[j] = ch << 2; - break; - case 1: - result[j++] |= ch >> 4; - result[j] = (ch & 0x0f) << 4; - break; - case 2: - result[j++] |= ch >>2; - result[j] = (ch & 0x03) << 6; - break; - case 3: - result[j++] |= ch; - break; - } - i++; - } - - k = j; - /* mop things up if we ended on a boundary */ - if (ch == base64_pad) { - switch(i % 4) { - case 0: - case 1: - efree(result); - return NULL; - case 2: - k++; - case 3: - result[k++] = 0; - } - } - if(ret_length) { - *ret_length = j; - } - result[k] = '\0'; - return result; -} - -/* {{{ proto string base64_encode(string str) - Encodes string using MIME base64 algorithm */ -PHP_FUNCTION(base64_encode) { - pval **string; - unsigned char *result; - int ret_length; - - if (ARG_COUNT(ht)!=1 || getParametersEx(1,&string) == FAILURE) { - WRONG_PARAM_COUNT; - } - convert_to_string_ex(string); - result = _php3_base64_encode((*string)->value.str.val, (*string)->value.str.len, &ret_length); - if (result != NULL) { - return_value->value.str.val = result; - return_value->value.str.len = ret_length; - return_value->type = IS_STRING; - } else { - RETURN_FALSE; - } -} -/* }}} */ - - -/* {{{ proto string base64_decode(string str) - Decodes string using MIME base64 algorithm */ -PHP_FUNCTION(base64_decode) { - pval **string; - unsigned char *result; - int ret_length; - - if (ARG_COUNT(ht)!=1 || getParametersEx(1,&string) == FAILURE) { - WRONG_PARAM_COUNT; - } - convert_to_string_ex(string); - result = _php3_base64_decode((*string)->value.str.val, (*string)->value.str.len, &ret_length); - if (result != NULL) { - return_value->value.str.val = result; - return_value->value.str.len = ret_length; - return_value->type = IS_STRING; - } else { - RETURN_FALSE; - } -} -/* }}} */ - - -/* - * Local variables: - * tab-width: 4 - * c-basic-offset: 4 - * End: - */ |