X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fo_str.c;h=660226fcec5fbc3ab8f305de8328cbc2ab137e0d;hp=60c01c10a40667c29e35395ce65bef12523400d6;hb=70428eada9bc4cf31424d723d1f992baffeb0dfb;hpb=a006fef78e56b078549a80f4bb4518b6a02eba84 diff --git a/crypto/o_str.c b/crypto/o_str.c index 60c01c10a4..660226fcec 100644 --- a/crypto/o_str.c +++ b/crypto/o_str.c @@ -1,6 +1,6 @@ -/* crypto/o_str.c -*- mode:C; c-file-style: "eay" -*- */ -/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL - * project 2003. +/* + * Written by Richard Levitte (richard@levitte.org) for the OpenSSL project + * 2003. */ /* ==================================================================== * Copyright (c) 2003 The OpenSSL Project. All rights reserved. @@ -10,7 +10,7 @@ * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in @@ -57,55 +57,253 @@ */ #include +#include #include -#include "o_str.h" +#include +#include "internal/cryptlib.h" +#include "internal/o_str.h" #if !defined(OPENSSL_IMPLEMENTS_strncasecmp) && \ - !defined(OPENSSL_SYSNAME_WIN32) && !defined(OPENSSL_SYSNAME_WINCE) && \ + !defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_SYS_WINCE) && \ !defined(NETWARE_CLIB) # include #endif int OPENSSL_strncasecmp(const char *str1, const char *str2, size_t n) - { +{ #if defined(OPENSSL_IMPLEMENTS_strncasecmp) - while (*str1 && *str2 && n) - { - int res = toupper(*str1) - toupper(*str2); - if (res) return res < 0 ? -1 : 1; - str1++; - str2++; - n--; - } - if (n == 0) - return 0; - if (*str1) - return 1; - if (*str2) - return -1; - return 0; + while (*str1 && *str2 && n) { + int res = toupper(*str1) - toupper(*str2); + if (res) + return res < 0 ? -1 : 1; + str1++; + str2++; + n--; + } + if (n == 0) + return 0; + if (*str1) + return 1; + if (*str2) + return -1; + return 0; #else - /* Recursion hazard warning! Whenever strncasecmp is #defined as - * OPENSSL_strncasecmp, OPENSSL_IMPLEMENTS_strncasecmp must be - * defined as well. */ - return strncasecmp(str1, str2, n); + /* + * Recursion hazard warning! Whenever strncasecmp is #defined as + * OPENSSL_strncasecmp, OPENSSL_IMPLEMENTS_strncasecmp must be defined as + * well. + */ + return strncasecmp(str1, str2, n); #endif - } +} + int OPENSSL_strcasecmp(const char *str1, const char *str2) - { +{ #if defined(OPENSSL_IMPLEMENTS_strncasecmp) - return OPENSSL_strncasecmp(str1, str2, (size_t)-1); + return OPENSSL_strncasecmp(str1, str2, (size_t)-1); #else - return strcasecmp(str1, str2); + return strcasecmp(str1, str2); #endif - } +} + +int OPENSSL_memcmp(const void *v1, const void *v2, size_t n) +{ + const unsigned char *c1 = v1, *c2 = v2; + int ret = 0; + + while (n && (ret = *c1 - *c2) == 0) + n--, c1++, c2++; + + return ret; +} + +char *CRYPTO_strdup(const char *str, const char* file, int line) +{ + char *ret; + size_t size; + + if (str == NULL) + return NULL; + size = strlen(str) + 1; + ret = CRYPTO_malloc(size, file, line); + if (ret != NULL) + memcpy(ret, str, size); + return ret; +} + +char *CRYPTO_strndup(const char *str, size_t s, const char* file, int line) +{ + size_t maxlen; + char *ret; + + if (str == NULL) + return NULL; + + maxlen = OPENSSL_strnlen(str, s); + + ret = CRYPTO_malloc(maxlen + 1, file, line); + if (ret) { + memcpy(ret, str, maxlen); + ret[maxlen] = '\0'; + } + return ret; +} + +void *CRYPTO_memdup(const void *data, size_t siz, const char* file, int line) +{ + void *ret; + + if (data == NULL || siz >= INT_MAX) + return NULL; + + ret = CRYPTO_malloc(siz, file, line); + if (ret == NULL) { + CRYPTOerr(CRYPTO_F_CRYPTO_MEMDUP, ERR_R_MALLOC_FAILURE); + return NULL; + } + return memcpy(ret, data, siz); +} + +size_t OPENSSL_strnlen(const char *str, size_t maxlen) +{ + const char *p; -int OPENSSL_memcmp(const void *v1,const void *v2,size_t n) - { - const unsigned char *c1=v1,*c2=v2; - int ret=0; + for (p = str; maxlen-- != 0 && *p != '\0'; ++p) ; - while(n && (ret=*c1-*c2)==0) n--,c1++,c2++; + return p - str; +} + +size_t OPENSSL_strlcpy(char *dst, const char *src, size_t size) +{ + size_t l = 0; + for (; size > 1 && *src; size--) { + *dst++ = *src++; + l++; + } + if (size) + *dst = '\0'; + return l + strlen(src); +} + +size_t OPENSSL_strlcat(char *dst, const char *src, size_t size) +{ + size_t l = 0; + for (; size > 0 && *dst; size--, dst++) + l++; + return l + OPENSSL_strlcpy(dst, src, size); +} + +int OPENSSL_hexchar2int(unsigned char c) +{ +#ifdef CHARSET_EBCDIC + c = os_toebcdic[c]; +#endif + + switch (c) { + case '0': + return 0; + case '1': + return 1; + case '2': + return 2; + case '3': + return 3; + case '4': + return 4; + case '5': + return 5; + case '6': + return 6; + case '7': + return 7; + case '8': + return 8; + case '9': + return 9; + case 'a': case 'A': + return 0x0A; + case 'b': case 'B': + return 0x0B; + case 'c': case 'C': + return 0x0C; + case 'd': case 'D': + return 0x0D; + case 'e': case 'E': + return 0x0E; + case 'f': case 'F': + return 0x0F; + } + return -1; +} + +/* + * Give a string of hex digits convert to a buffer + */ +unsigned char *OPENSSL_hexstr2buf(const char *str, long *len) +{ + unsigned char *hexbuf, *q; + unsigned char ch, cl; + int chi, cli; + const unsigned char *p; + size_t s; + + s = strlen(str); + if ((hexbuf = OPENSSL_malloc(s >> 1)) == NULL) { + CRYPTOerr(CRYPTO_F_OPENSSL_HEXSTR2BUF, ERR_R_MALLOC_FAILURE); + return NULL; + } + for (p = (const unsigned char *)str, q = hexbuf; *p; ) { + ch = *p++; + if (ch == ':') + continue; + cl = *p++; + if (!cl) { + CRYPTOerr(CRYPTO_F_OPENSSL_HEXSTR2BUF, + CRYPTO_R_ODD_NUMBER_OF_DIGITS); + OPENSSL_free(hexbuf); + return NULL; + } + cli = OPENSSL_hexchar2int(cl); + chi = OPENSSL_hexchar2int(ch); + if (cli < 0 || chi < 0) { + OPENSSL_free(hexbuf); + CRYPTOerr(CRYPTO_F_OPENSSL_HEXSTR2BUF, CRYPTO_R_ILLEGAL_HEX_DIGIT); + return NULL; + } + *q++ = (unsigned char)((chi << 4) | cli); + } + + if (len) + *len = q - hexbuf; + return hexbuf; +} + +/* + * Given a buffer of length 'len' return a OPENSSL_malloc'ed string with its + * hex representation @@@ (Contents of buffer are always kept in ASCII, also + * on EBCDIC machines) + */ +char *OPENSSL_buf2hexstr(const unsigned char *buffer, long len) +{ + const static char hexdig[] = "0123456789ABCDEF"; + char *tmp, *q; + const unsigned char *p; + int i; + + if ((tmp = OPENSSL_malloc(len * 3 + 1)) == NULL) { + CRYPTOerr(CRYPTO_F_OPENSSL_BUF2HEXSTR, ERR_R_MALLOC_FAILURE); + return NULL; + } + q = tmp; + for (i = 0, p = buffer; i < len; i++, p++) { + *q++ = hexdig[(*p >> 4) & 0xf]; + *q++ = hexdig[*p & 0xf]; + *q++ = ':'; + } + q[-1] = 0; +#ifdef CHARSET_EBCDIC + ebcdic2ascii(tmp, tmp, q - tmp - 1); +#endif - return ret; - } + return tmp; +}