diff options
Diffstat (limited to 'openssl/crypto/asn1/a_mbstr.c')
| -rw-r--r-- | openssl/crypto/asn1/a_mbstr.c | 553 |
1 files changed, 288 insertions, 265 deletions
diff --git a/openssl/crypto/asn1/a_mbstr.c b/openssl/crypto/asn1/a_mbstr.c index 1538e0a4f..6935efe09 100644 --- a/openssl/crypto/asn1/a_mbstr.c +++ b/openssl/crypto/asn1/a_mbstr.c @@ -1,6 +1,7 @@ /* a_mbstr.c */ -/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL - * project 1999. +/* + * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project + * 1999. */ /* ==================================================================== * Copyright (c) 1999 The OpenSSL Project. All rights reserved. @@ -10,7 +11,7 @@ * 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 @@ -62,7 +63,8 @@ #include <openssl/asn1.h> static int traverse_string(const unsigned char *p, int len, int inform, - int (*rfunc)(unsigned long value, void *in), void *arg); + int (*rfunc) (unsigned long value, void *in), + void *arg); static int in_utf8(unsigned long value, void *arg); static int out_utf8(unsigned long value, void *arg); static int type_str(unsigned long value, void *arg); @@ -72,212 +74,221 @@ static int cpy_univ(unsigned long value, void *arg); static int cpy_utf8(unsigned long value, void *arg); static int is_printable(unsigned long value); -/* These functions take a string in UTF8, ASCII or multibyte form and - * a mask of permissible ASN1 string types. It then works out the minimal - * type (using the order Printable < IA5 < T61 < BMP < Universal < UTF8) - * and creates a string of the correct type with the supplied data. - * Yes this is horrible: it has to be :-( - * The 'ncopy' form checks minimum and maximum size limits too. +/* + * These functions take a string in UTF8, ASCII or multibyte form and a mask + * of permissible ASN1 string types. It then works out the minimal type + * (using the order Printable < IA5 < T61 < BMP < Universal < UTF8) and + * creates a string of the correct type with the supplied data. Yes this is + * horrible: it has to be :-( The 'ncopy' form checks minimum and maximum + * size limits too. */ int ASN1_mbstring_copy(ASN1_STRING **out, const unsigned char *in, int len, - int inform, unsigned long mask) + int inform, unsigned long mask) { - return ASN1_mbstring_ncopy(out, in, len, inform, mask, 0, 0); + return ASN1_mbstring_ncopy(out, in, len, inform, mask, 0, 0); } int ASN1_mbstring_ncopy(ASN1_STRING **out, const unsigned char *in, int len, - int inform, unsigned long mask, - long minsize, long maxsize) + int inform, unsigned long mask, + long minsize, long maxsize) { - int str_type; - int ret; - char free_out; - int outform, outlen = 0; - ASN1_STRING *dest; - unsigned char *p; - int nchar; - char strbuf[32]; - int (*cpyfunc)(unsigned long,void *) = NULL; - if(len == -1) len = strlen((const char *)in); - if(!mask) mask = DIRSTRING_TYPE; - - /* First do a string check and work out the number of characters */ - switch(inform) { - - case MBSTRING_BMP: - if(len & 1) { - ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, - ASN1_R_INVALID_BMPSTRING_LENGTH); - return -1; - } - nchar = len >> 1; - break; - - case MBSTRING_UNIV: - if(len & 3) { - ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, - ASN1_R_INVALID_UNIVERSALSTRING_LENGTH); - return -1; - } - nchar = len >> 2; - break; - - case MBSTRING_UTF8: - nchar = 0; - /* This counts the characters and does utf8 syntax checking */ - ret = traverse_string(in, len, MBSTRING_UTF8, in_utf8, &nchar); - if(ret < 0) { - ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, - ASN1_R_INVALID_UTF8STRING); - return -1; - } - break; - - case MBSTRING_ASC: - nchar = len; - break; - - default: - ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ASN1_R_UNKNOWN_FORMAT); - return -1; - } - - if((minsize > 0) && (nchar < minsize)) { - ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ASN1_R_STRING_TOO_SHORT); - BIO_snprintf(strbuf, sizeof strbuf, "%ld", minsize); - ERR_add_error_data(2, "minsize=", strbuf); - return -1; - } - - if((maxsize > 0) && (nchar > maxsize)) { - ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ASN1_R_STRING_TOO_LONG); - BIO_snprintf(strbuf, sizeof strbuf, "%ld", maxsize); - ERR_add_error_data(2, "maxsize=", strbuf); - return -1; - } - - /* Now work out minimal type (if any) */ - if(traverse_string(in, len, inform, type_str, &mask) < 0) { - ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ASN1_R_ILLEGAL_CHARACTERS); - return -1; - } - - - /* Now work out output format and string type */ - outform = MBSTRING_ASC; - if(mask & B_ASN1_PRINTABLESTRING) str_type = V_ASN1_PRINTABLESTRING; - else if(mask & B_ASN1_IA5STRING) str_type = V_ASN1_IA5STRING; - else if(mask & B_ASN1_T61STRING) str_type = V_ASN1_T61STRING; - else if(mask & B_ASN1_BMPSTRING) { - str_type = V_ASN1_BMPSTRING; - outform = MBSTRING_BMP; - } else if(mask & B_ASN1_UNIVERSALSTRING) { - str_type = V_ASN1_UNIVERSALSTRING; - outform = MBSTRING_UNIV; - } else { - str_type = V_ASN1_UTF8STRING; - outform = MBSTRING_UTF8; - } - if(!out) return str_type; - if(*out) { - free_out = 0; - dest = *out; - if(dest->data) { - dest->length = 0; - OPENSSL_free(dest->data); - dest->data = NULL; - } - dest->type = str_type; - } else { - free_out = 1; - dest = ASN1_STRING_type_new(str_type); - if(!dest) { - ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, - ERR_R_MALLOC_FAILURE); - return -1; - } - *out = dest; - } - /* If both the same type just copy across */ - if(inform == outform) { - if(!ASN1_STRING_set(dest, in, len)) { - ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY,ERR_R_MALLOC_FAILURE); - return -1; - } - return str_type; - } - - /* Work out how much space the destination will need */ - switch(outform) { - case MBSTRING_ASC: - outlen = nchar; - cpyfunc = cpy_asc; - break; - - case MBSTRING_BMP: - outlen = nchar << 1; - cpyfunc = cpy_bmp; - break; - - case MBSTRING_UNIV: - outlen = nchar << 2; - cpyfunc = cpy_univ; - break; - - case MBSTRING_UTF8: - outlen = 0; - traverse_string(in, len, inform, out_utf8, &outlen); - cpyfunc = cpy_utf8; - break; - } - if(!(p = OPENSSL_malloc(outlen + 1))) { - if(free_out) ASN1_STRING_free(dest); - ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY,ERR_R_MALLOC_FAILURE); - return -1; - } - dest->length = outlen; - dest->data = p; - p[outlen] = 0; - traverse_string(in, len, inform, cpyfunc, &p); - return str_type; + int str_type; + int ret; + char free_out; + int outform, outlen = 0; + ASN1_STRING *dest; + unsigned char *p; + int nchar; + char strbuf[32]; + int (*cpyfunc) (unsigned long, void *) = NULL; + if (len == -1) + len = strlen((const char *)in); + if (!mask) + mask = DIRSTRING_TYPE; + + /* First do a string check and work out the number of characters */ + switch (inform) { + + case MBSTRING_BMP: + if (len & 1) { + ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, + ASN1_R_INVALID_BMPSTRING_LENGTH); + return -1; + } + nchar = len >> 1; + break; + + case MBSTRING_UNIV: + if (len & 3) { + ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, + ASN1_R_INVALID_UNIVERSALSTRING_LENGTH); + return -1; + } + nchar = len >> 2; + break; + + case MBSTRING_UTF8: + nchar = 0; + /* This counts the characters and does utf8 syntax checking */ + ret = traverse_string(in, len, MBSTRING_UTF8, in_utf8, &nchar); + if (ret < 0) { + ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ASN1_R_INVALID_UTF8STRING); + return -1; + } + break; + + case MBSTRING_ASC: + nchar = len; + break; + + default: + ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ASN1_R_UNKNOWN_FORMAT); + return -1; + } + + if ((minsize > 0) && (nchar < minsize)) { + ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ASN1_R_STRING_TOO_SHORT); + BIO_snprintf(strbuf, sizeof strbuf, "%ld", minsize); + ERR_add_error_data(2, "minsize=", strbuf); + return -1; + } + + if ((maxsize > 0) && (nchar > maxsize)) { + ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ASN1_R_STRING_TOO_LONG); + BIO_snprintf(strbuf, sizeof strbuf, "%ld", maxsize); + ERR_add_error_data(2, "maxsize=", strbuf); + return -1; + } + + /* Now work out minimal type (if any) */ + if (traverse_string(in, len, inform, type_str, &mask) < 0) { + ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ASN1_R_ILLEGAL_CHARACTERS); + return -1; + } + + /* Now work out output format and string type */ + outform = MBSTRING_ASC; + if (mask & B_ASN1_PRINTABLESTRING) + str_type = V_ASN1_PRINTABLESTRING; + else if (mask & B_ASN1_IA5STRING) + str_type = V_ASN1_IA5STRING; + else if (mask & B_ASN1_T61STRING) + str_type = V_ASN1_T61STRING; + else if (mask & B_ASN1_BMPSTRING) { + str_type = V_ASN1_BMPSTRING; + outform = MBSTRING_BMP; + } else if (mask & B_ASN1_UNIVERSALSTRING) { + str_type = V_ASN1_UNIVERSALSTRING; + outform = MBSTRING_UNIV; + } else { + str_type = V_ASN1_UTF8STRING; + outform = MBSTRING_UTF8; + } + if (!out) + return str_type; + if (*out) { + free_out = 0; + dest = *out; + if (dest->data) { + dest->length = 0; + OPENSSL_free(dest->data); + dest->data = NULL; + } + dest->type = str_type; + } else { + free_out = 1; + dest = ASN1_STRING_type_new(str_type); + if (!dest) { + ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ERR_R_MALLOC_FAILURE); + return -1; + } + *out = dest; + } + /* If both the same type just copy across */ + if (inform == outform) { + if (!ASN1_STRING_set(dest, in, len)) { + ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ERR_R_MALLOC_FAILURE); + return -1; + } + return str_type; + } + + /* Work out how much space the destination will need */ + switch (outform) { + case MBSTRING_ASC: + outlen = nchar; + cpyfunc = cpy_asc; + break; + + case MBSTRING_BMP: + outlen = nchar << 1; + cpyfunc = cpy_bmp; + break; + + case MBSTRING_UNIV: + outlen = nchar << 2; + cpyfunc = cpy_univ; + break; + + case MBSTRING_UTF8: + outlen = 0; + traverse_string(in, len, inform, out_utf8, &outlen); + cpyfunc = cpy_utf8; + break; + } + if (!(p = OPENSSL_malloc(outlen + 1))) { + if (free_out) + ASN1_STRING_free(dest); + ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ERR_R_MALLOC_FAILURE); + return -1; + } + dest->length = outlen; + dest->data = p; + p[outlen] = 0; + traverse_string(in, len, inform, cpyfunc, &p); + return str_type; } -/* This function traverses a string and passes the value of each character - * to an optional function along with a void * argument. +/* + * This function traverses a string and passes the value of each character to + * an optional function along with a void * argument. */ static int traverse_string(const unsigned char *p, int len, int inform, - int (*rfunc)(unsigned long value, void *in), void *arg) + int (*rfunc) (unsigned long value, void *in), + void *arg) { - unsigned long value; - int ret; - while(len) { - if(inform == MBSTRING_ASC) { - value = *p++; - len--; - } else if(inform == MBSTRING_BMP) { - value = *p++ << 8; - value |= *p++; - len -= 2; - } else if(inform == MBSTRING_UNIV) { - value = ((unsigned long)*p++) << 24; - value |= ((unsigned long)*p++) << 16; - value |= *p++ << 8; - value |= *p++; - len -= 4; - } else { - ret = UTF8_getc(p, len, &value); - if(ret < 0) return -1; - len -= ret; - p += ret; - } - if(rfunc) { - ret = rfunc(value, arg); - if(ret <= 0) return ret; - } - } - return 1; + unsigned long value; + int ret; + while (len) { + if (inform == MBSTRING_ASC) { + value = *p++; + len--; + } else if (inform == MBSTRING_BMP) { + value = *p++ << 8; + value |= *p++; + len -= 2; + } else if (inform == MBSTRING_UNIV) { + value = ((unsigned long)*p++) << 24; + value |= ((unsigned long)*p++) << 16; + value |= *p++ << 8; + value |= *p++; + len -= 4; + } else { + ret = UTF8_getc(p, len, &value); + if (ret < 0) + return -1; + len -= ret; + p += ret; + } + if (rfunc) { + ret = rfunc(value, arg); + if (ret <= 0) + return ret; + } + } + return 1; } /* Various utility functions for traverse_string */ @@ -286,115 +297,127 @@ static int traverse_string(const unsigned char *p, int len, int inform, static int in_utf8(unsigned long value, void *arg) { - int *nchar; - nchar = arg; - (*nchar)++; - return 1; + int *nchar; + nchar = arg; + (*nchar)++; + return 1; } /* Determine size of output as a UTF8 String */ static int out_utf8(unsigned long value, void *arg) { - int *outlen; - outlen = arg; - *outlen += UTF8_putc(NULL, -1, value); - return 1; + int *outlen; + outlen = arg; + *outlen += UTF8_putc(NULL, -1, value); + return 1; } -/* Determine the "type" of a string: check each character against a - * supplied "mask". +/* + * Determine the "type" of a string: check each character against a supplied + * "mask". */ static int type_str(unsigned long value, void *arg) { - unsigned long types; - types = *((unsigned long *)arg); - if((types & B_ASN1_PRINTABLESTRING) && !is_printable(value)) - types &= ~B_ASN1_PRINTABLESTRING; - if((types & B_ASN1_IA5STRING) && (value > 127)) - types &= ~B_ASN1_IA5STRING; - if((types & B_ASN1_T61STRING) && (value > 0xff)) - types &= ~B_ASN1_T61STRING; - if((types & B_ASN1_BMPSTRING) && (value > 0xffff)) - types &= ~B_ASN1_BMPSTRING; - if(!types) return -1; - *((unsigned long *)arg) = types; - return 1; + unsigned long types; + types = *((unsigned long *)arg); + if ((types & B_ASN1_PRINTABLESTRING) && !is_printable(value)) + types &= ~B_ASN1_PRINTABLESTRING; + if ((types & B_ASN1_IA5STRING) && (value > 127)) + types &= ~B_ASN1_IA5STRING; + if ((types & B_ASN1_T61STRING) && (value > 0xff)) + types &= ~B_ASN1_T61STRING; + if ((types & B_ASN1_BMPSTRING) && (value > 0xffff)) + types &= ~B_ASN1_BMPSTRING; + if (!types) + return -1; + *((unsigned long *)arg) = types; + return 1; } /* Copy one byte per character ASCII like strings */ static int cpy_asc(unsigned long value, void *arg) { - unsigned char **p, *q; - p = arg; - q = *p; - *q = (unsigned char) value; - (*p)++; - return 1; + unsigned char **p, *q; + p = arg; + q = *p; + *q = (unsigned char)value; + (*p)++; + return 1; } /* Copy two byte per character BMPStrings */ static int cpy_bmp(unsigned long value, void *arg) { - unsigned char **p, *q; - p = arg; - q = *p; - *q++ = (unsigned char) ((value >> 8) & 0xff); - *q = (unsigned char) (value & 0xff); - *p += 2; - return 1; + unsigned char **p, *q; + p = arg; + q = *p; + *q++ = (unsigned char)((value >> 8) & 0xff); + *q = (unsigned char)(value & 0xff); + *p += 2; + return 1; } /* Copy four byte per character UniversalStrings */ static int cpy_univ(unsigned long value, void *arg) { - unsigned char **p, *q; - p = arg; - q = *p; - *q++ = (unsigned char) ((value >> 24) & 0xff); - *q++ = (unsigned char) ((value >> 16) & 0xff); - *q++ = (unsigned char) ((value >> 8) & 0xff); - *q = (unsigned char) (value & 0xff); - *p += 4; - return 1; + unsigned char **p, *q; + p = arg; + q = *p; + *q++ = (unsigned char)((value >> 24) & 0xff); + *q++ = (unsigned char)((value >> 16) & 0xff); + *q++ = (unsigned char)((value >> 8) & 0xff); + *q = (unsigned char)(value & 0xff); + *p += 4; + return 1; } /* Copy to a UTF8String */ static int cpy_utf8(unsigned long value, void *arg) { - unsigned char **p; - int ret; - p = arg; - /* We already know there is enough room so pass 0xff as the length */ - ret = UTF8_putc(*p, 0xff, value); - *p += ret; - return 1; + unsigned char **p; + int ret; + p = arg; + /* We already know there is enough room so pass 0xff as the length */ + ret = UTF8_putc(*p, 0xff, value); + *p += ret; + return 1; } /* Return 1 if the character is permitted in a PrintableString */ static int is_printable(unsigned long value) { - int ch; - if(value > 0x7f) return 0; - ch = (int) value; - /* Note: we can't use 'isalnum' because certain accented - * characters may count as alphanumeric in some environments. - */ + int ch; + if (value > 0x7f) + return 0; + ch = (int)value; + /* + * Note: we can't use 'isalnum' because certain accented characters may + * count as alphanumeric in some environments. + */ #ifndef CHARSET_EBCDIC - if((ch >= 'a') && (ch <= 'z')) return 1; - if((ch >= 'A') && (ch <= 'Z')) return 1; - if((ch >= '0') && (ch <= '9')) return 1; - if ((ch == ' ') || strchr("'()+,-./:=?", ch)) return 1; -#else /*CHARSET_EBCDIC*/ - if((ch >= os_toascii['a']) && (ch <= os_toascii['z'])) return 1; - if((ch >= os_toascii['A']) && (ch <= os_toascii['Z'])) return 1; - if((ch >= os_toascii['0']) && (ch <= os_toascii['9'])) return 1; - if ((ch == os_toascii[' ']) || strchr("'()+,-./:=?", os_toebcdic[ch])) return 1; -#endif /*CHARSET_EBCDIC*/ - return 0; + if ((ch >= 'a') && (ch <= 'z')) + return 1; + if ((ch >= 'A') && (ch <= 'Z')) + return 1; + if ((ch >= '0') && (ch <= '9')) + return 1; + if ((ch == ' ') || strchr("'()+,-./:=?", ch)) + return 1; +#else /* CHARSET_EBCDIC */ + if ((ch >= os_toascii['a']) && (ch <= os_toascii['z'])) + return 1; + if ((ch >= os_toascii['A']) && (ch <= os_toascii['Z'])) + return 1; + if ((ch >= os_toascii['0']) && (ch <= os_toascii['9'])) + return 1; + if ((ch == os_toascii[' ']) || strchr("'()+,-./:=?", os_toebcdic[ch])) + return 1; +#endif /* CHARSET_EBCDIC */ + return 0; } |