From 14f051a0ae3d752c50f419d3583e85fdf4c5bfc9 Mon Sep 17 00:00:00 2001 From: Rich Salz Date: Wed, 13 Apr 2016 15:58:28 -0400 Subject: Make string_to_hex/hex_to_string public Give the API new names, document it. Reviewed-by: Richard Levitte --- crypto/x509v3/v3_utl.c | 102 ------------------------------------------------- 1 file changed, 102 deletions(-) (limited to 'crypto/x509v3/v3_utl.c') diff --git a/crypto/x509v3/v3_utl.c b/crypto/x509v3/v3_utl.c index f791c2f37c..ae9645d687 100644 --- a/crypto/x509v3/v3_utl.c +++ b/crypto/x509v3/v3_utl.c @@ -396,108 +396,6 @@ static char *strip_spaces(char *name) return p; } -/* hex string utilities */ - -/* - * 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 *hex_to_string(const unsigned char *buffer, long len) -{ - char *tmp, *q; - const unsigned char *p; - int i; - const static char hexdig[] = "0123456789ABCDEF"; - if (!buffer || !len) - return NULL; - if ((tmp = OPENSSL_malloc(len * 3 + 1)) == NULL) { - X509V3err(X509V3_F_HEX_TO_STRING, 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 tmp; -} - -/* - * Give a string of hex digits convert to a buffer - */ - -unsigned char *string_to_hex(const char *str, long *len) -{ - unsigned char *hexbuf, *q; - unsigned char ch, cl, *p; - if (!str) { - X509V3err(X509V3_F_STRING_TO_HEX, X509V3_R_INVALID_NULL_ARGUMENT); - return NULL; - } - if ((hexbuf = OPENSSL_malloc(strlen(str) >> 1)) == NULL) - goto err; - for (p = (unsigned char *)str, q = hexbuf; *p;) { - ch = *p++; -#ifdef CHARSET_EBCDIC - ch = os_toebcdic[ch]; -#endif - if (ch == ':') - continue; - cl = *p++; -#ifdef CHARSET_EBCDIC - cl = os_toebcdic[cl]; -#endif - if (!cl) { - X509V3err(X509V3_F_STRING_TO_HEX, X509V3_R_ODD_NUMBER_OF_DIGITS); - OPENSSL_free(hexbuf); - return NULL; - } - if (isupper(ch)) - ch = tolower(ch); - if (isupper(cl)) - cl = tolower(cl); - - if ((ch >= '0') && (ch <= '9')) - ch -= '0'; - else if ((ch >= 'a') && (ch <= 'f')) - ch -= 'a' - 10; - else - goto badhex; - - if ((cl >= '0') && (cl <= '9')) - cl -= '0'; - else if ((cl >= 'a') && (cl <= 'f')) - cl -= 'a' - 10; - else - goto badhex; - - *q++ = (ch << 4) | cl; - } - - if (len) - *len = q - hexbuf; - - return hexbuf; - - err: - OPENSSL_free(hexbuf); - X509V3err(X509V3_F_STRING_TO_HEX, ERR_R_MALLOC_FAILURE); - return NULL; - - badhex: - OPENSSL_free(hexbuf); - X509V3err(X509V3_F_STRING_TO_HEX, X509V3_R_ILLEGAL_HEX_DIGIT); - return NULL; - -} /* * V2I name comparison function: returns zero if 'name' matches cmp or cmp.* -- cgit v1.2.3