diff options
Diffstat (limited to 'openssl/crypto/asn1/a_strex.c')
| -rw-r--r-- | openssl/crypto/asn1/a_strex.c | 574 |
1 files changed, 0 insertions, 574 deletions
diff --git a/openssl/crypto/asn1/a_strex.c b/openssl/crypto/asn1/a_strex.c deleted file mode 100644 index 264ebf23..00000000 --- a/openssl/crypto/asn1/a_strex.c +++ /dev/null @@ -1,574 +0,0 @@ -/* a_strex.c */ -/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL - * project 2000. - */ -/* ==================================================================== - * Copyright (c) 2000 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * 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 - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * licensing@OpenSSL.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). - * - */ - -#include <stdio.h> -#include <string.h> -#include "cryptlib.h" -#include <openssl/crypto.h> -#include <openssl/x509.h> -#include <openssl/asn1.h> - -#include "charmap.h" - -/* ASN1_STRING_print_ex() and X509_NAME_print_ex(). - * Enhanced string and name printing routines handling - * multibyte characters, RFC2253 and a host of other - * options. - */ - - -#define CHARTYPE_BS_ESC (ASN1_STRFLGS_ESC_2253 | CHARTYPE_FIRST_ESC_2253 | CHARTYPE_LAST_ESC_2253) - -#define ESC_FLAGS (ASN1_STRFLGS_ESC_2253 | \ - ASN1_STRFLGS_ESC_QUOTE | \ - ASN1_STRFLGS_ESC_CTRL | \ - ASN1_STRFLGS_ESC_MSB) - - -/* Three IO functions for sending data to memory, a BIO and - * and a FILE pointer. - */ -#if 0 /* never used */ -static int send_mem_chars(void *arg, const void *buf, int len) -{ - unsigned char **out = arg; - if(!out) return 1; - memcpy(*out, buf, len); - *out += len; - return 1; -} -#endif - -static int send_bio_chars(void *arg, const void *buf, int len) -{ - if(!arg) return 1; - if(BIO_write(arg, buf, len) != len) return 0; - return 1; -} - -static int send_fp_chars(void *arg, const void *buf, int len) -{ - if(!arg) return 1; - if(fwrite(buf, 1, len, arg) != (unsigned int)len) return 0; - return 1; -} - -typedef int char_io(void *arg, const void *buf, int len); - -/* This function handles display of - * strings, one character at a time. - * It is passed an unsigned long for each - * character because it could come from 2 or even - * 4 byte forms. - */ - -static int do_esc_char(unsigned long c, unsigned char flags, char *do_quotes, char_io *io_ch, void *arg) -{ - unsigned char chflgs, chtmp; - char tmphex[HEX_SIZE(long)+3]; - - if(c > 0xffffffffL) - return -1; - if(c > 0xffff) { - BIO_snprintf(tmphex, sizeof tmphex, "\\W%08lX", c); - if(!io_ch(arg, tmphex, 10)) return -1; - return 10; - } - if(c > 0xff) { - BIO_snprintf(tmphex, sizeof tmphex, "\\U%04lX", c); - if(!io_ch(arg, tmphex, 6)) return -1; - return 6; - } - chtmp = (unsigned char)c; - if(chtmp > 0x7f) chflgs = flags & ASN1_STRFLGS_ESC_MSB; - else chflgs = char_type[chtmp] & flags; - if(chflgs & CHARTYPE_BS_ESC) { - /* If we don't escape with quotes, signal we need quotes */ - if(chflgs & ASN1_STRFLGS_ESC_QUOTE) { - if(do_quotes) *do_quotes = 1; - if(!io_ch(arg, &chtmp, 1)) return -1; - return 1; - } - if(!io_ch(arg, "\\", 1)) return -1; - if(!io_ch(arg, &chtmp, 1)) return -1; - return 2; - } - if(chflgs & (ASN1_STRFLGS_ESC_CTRL|ASN1_STRFLGS_ESC_MSB)) { - BIO_snprintf(tmphex, 11, "\\%02X", chtmp); - if(!io_ch(arg, tmphex, 3)) return -1; - return 3; - } - /* If we get this far and do any escaping at all must escape - * the escape character itself: backslash. - */ - if (chtmp == '\\' && flags & ESC_FLAGS) { - if(!io_ch(arg, "\\\\", 2)) return -1; - return 2; - } - if(!io_ch(arg, &chtmp, 1)) return -1; - return 1; -} - -#define BUF_TYPE_WIDTH_MASK 0x7 -#define BUF_TYPE_CONVUTF8 0x8 - -/* This function sends each character in a buffer to - * do_esc_char(). It interprets the content formats - * and converts to or from UTF8 as appropriate. - */ - -static int do_buf(unsigned char *buf, int buflen, - int type, unsigned char flags, char *quotes, char_io *io_ch, void *arg) -{ - int i, outlen, len; - unsigned char orflags, *p, *q; - unsigned long c; - p = buf; - q = buf + buflen; - outlen = 0; - while(p != q) { - if(p == buf && flags & ASN1_STRFLGS_ESC_2253) orflags = CHARTYPE_FIRST_ESC_2253; - else orflags = 0; - switch(type & BUF_TYPE_WIDTH_MASK) { - case 4: - c = ((unsigned long)*p++) << 24; - c |= ((unsigned long)*p++) << 16; - c |= ((unsigned long)*p++) << 8; - c |= *p++; - break; - - case 2: - c = ((unsigned long)*p++) << 8; - c |= *p++; - break; - - case 1: - c = *p++; - break; - - case 0: - i = UTF8_getc(p, buflen, &c); - if(i < 0) return -1; /* Invalid UTF8String */ - p += i; - break; - default: - return -1; /* invalid width */ - } - if (p == q && flags & ASN1_STRFLGS_ESC_2253) orflags = CHARTYPE_LAST_ESC_2253; - if(type & BUF_TYPE_CONVUTF8) { - unsigned char utfbuf[6]; - int utflen; - utflen = UTF8_putc(utfbuf, sizeof utfbuf, c); - for(i = 0; i < utflen; i++) { - /* We don't need to worry about setting orflags correctly - * because if utflen==1 its value will be correct anyway - * otherwise each character will be > 0x7f and so the - * character will never be escaped on first and last. - */ - len = do_esc_char(utfbuf[i], (unsigned char)(flags | orflags), quotes, io_ch, arg); - if(len < 0) return -1; - outlen += len; - } - } else { - len = do_esc_char(c, (unsigned char)(flags | orflags), quotes, io_ch, arg); - if(len < 0) return -1; - outlen += len; - } - } - return outlen; -} - -/* This function hex dumps a buffer of characters */ - -static int do_hex_dump(char_io *io_ch, void *arg, unsigned char *buf, int buflen) -{ - static const char hexdig[] = "0123456789ABCDEF"; - unsigned char *p, *q; - char hextmp[2]; - if(arg) { - p = buf; - q = buf + buflen; - while(p != q) { - hextmp[0] = hexdig[*p >> 4]; - hextmp[1] = hexdig[*p & 0xf]; - if(!io_ch(arg, hextmp, 2)) return -1; - p++; - } - } - return buflen << 1; -} - -/* "dump" a string. This is done when the type is unknown, - * or the flags request it. We can either dump the content - * octets or the entire DER encoding. This uses the RFC2253 - * #01234 format. - */ - -static int do_dump(unsigned long lflags, char_io *io_ch, void *arg, ASN1_STRING *str) -{ - /* Placing the ASN1_STRING in a temp ASN1_TYPE allows - * the DER encoding to readily obtained - */ - ASN1_TYPE t; - unsigned char *der_buf, *p; - int outlen, der_len; - - if(!io_ch(arg, "#", 1)) return -1; - /* If we don't dump DER encoding just dump content octets */ - if(!(lflags & ASN1_STRFLGS_DUMP_DER)) { - outlen = do_hex_dump(io_ch, arg, str->data, str->length); - if(outlen < 0) return -1; - return outlen + 1; - } - t.type = str->type; - t.value.ptr = (char *)str; - der_len = i2d_ASN1_TYPE(&t, NULL); - der_buf = OPENSSL_malloc(der_len); - if(!der_buf) return -1; - p = der_buf; - i2d_ASN1_TYPE(&t, &p); - outlen = do_hex_dump(io_ch, arg, der_buf, der_len); - OPENSSL_free(der_buf); - if(outlen < 0) return -1; - return outlen + 1; -} - -/* Lookup table to convert tags to character widths, - * 0 = UTF8 encoded, -1 is used for non string types - * otherwise it is the number of bytes per character - */ - -static const signed char tag2nbyte[] = { - -1, -1, -1, -1, -1, /* 0-4 */ - -1, -1, -1, -1, -1, /* 5-9 */ - -1, -1, 0, -1, /* 10-13 */ - -1, -1, -1, -1, /* 15-17 */ - -1, 1, 1, /* 18-20 */ - -1, 1, 1, 1, /* 21-24 */ - -1, 1, -1, /* 25-27 */ - 4, -1, 2 /* 28-30 */ -}; - -/* This is the main function, print out an - * ASN1_STRING taking note of various escape - * and display options. Returns number of - * characters written or -1 if an error - * occurred. - */ - -static int do_print_ex(char_io *io_ch, void *arg, unsigned long lflags, ASN1_STRING *str) -{ - int outlen, len; - int type; - char quotes; - unsigned char flags; - quotes = 0; - /* Keep a copy of escape flags */ - flags = (unsigned char)(lflags & ESC_FLAGS); - - type = str->type; - - outlen = 0; - - - if(lflags & ASN1_STRFLGS_SHOW_TYPE) { - const char *tagname; - tagname = ASN1_tag2str(type); - outlen += strlen(tagname); - if(!io_ch(arg, tagname, outlen) || !io_ch(arg, ":", 1)) return -1; - outlen++; - } - - /* Decide what to do with type, either dump content or display it */ - - /* Dump everything */ - if(lflags & ASN1_STRFLGS_DUMP_ALL) type = -1; - /* Ignore the string type */ - else if(lflags & ASN1_STRFLGS_IGNORE_TYPE) type = 1; - else { - /* Else determine width based on type */ - if((type > 0) && (type < 31)) type = tag2nbyte[type]; - else type = -1; - if((type == -1) && !(lflags & ASN1_STRFLGS_DUMP_UNKNOWN)) type = 1; - } - - if(type == -1) { - len = do_dump(lflags, io_ch, arg, str); - if(len < 0) return -1; - outlen += len; - return outlen; - } - - if(lflags & ASN1_STRFLGS_UTF8_CONVERT) { - /* Note: if string is UTF8 and we want - * to convert to UTF8 then we just interpret - * it as 1 byte per character to avoid converting - * twice. - */ - if(!type) type = 1; - else type |= BUF_TYPE_CONVUTF8; - } - - len = do_buf(str->data, str->length, type, flags, "es, io_ch, NULL); - if(len < 0) return -1; - outlen += len; - if(quotes) outlen += 2; - if(!arg) return outlen; - if(quotes && !io_ch(arg, "\"", 1)) return -1; - if(do_buf(str->data, str->length, type, flags, NULL, io_ch, arg) < 0) - return -1; - if(quotes && !io_ch(arg, "\"", 1)) return -1; - return outlen; -} - -/* Used for line indenting: print 'indent' spaces */ - -static int do_indent(char_io *io_ch, void *arg, int indent) -{ - int i; - for(i = 0; i < indent; i++) - if(!io_ch(arg, " ", 1)) return 0; - return 1; -} - -#define FN_WIDTH_LN 25 -#define FN_WIDTH_SN 10 - -static int do_name_ex(char_io *io_ch, void *arg, X509_NAME *n, - int indent, unsigned long flags) -{ - int i, prev = -1, orflags, cnt; - int fn_opt, fn_nid; - ASN1_OBJECT *fn; - ASN1_STRING *val; - X509_NAME_ENTRY *ent; - char objtmp[80]; - const char *objbuf; - int outlen, len; - char *sep_dn, *sep_mv, *sep_eq; - int sep_dn_len, sep_mv_len, sep_eq_len; - if(indent < 0) indent = 0; - outlen = indent; - if(!do_indent(io_ch, arg, indent)) return -1; - switch (flags & XN_FLAG_SEP_MASK) - { - case XN_FLAG_SEP_MULTILINE: - sep_dn = "\n"; - sep_dn_len = 1; - sep_mv = " + "; - sep_mv_len = 3; - break; - - case XN_FLAG_SEP_COMMA_PLUS: - sep_dn = ","; - sep_dn_len = 1; - sep_mv = "+"; - sep_mv_len = 1; - indent = 0; - break; - - case XN_FLAG_SEP_CPLUS_SPC: - sep_dn = ", "; - sep_dn_len = 2; - sep_mv = " + "; - sep_mv_len = 3; - indent = 0; - break; - - case XN_FLAG_SEP_SPLUS_SPC: - sep_dn = "; "; - sep_dn_len = 2; - sep_mv = " + "; - sep_mv_len = 3; - indent = 0; - break; - - default: - return -1; - } - - if(flags & XN_FLAG_SPC_EQ) { - sep_eq = " = "; - sep_eq_len = 3; - } else { - sep_eq = "="; - sep_eq_len = 1; - } - - fn_opt = flags & XN_FLAG_FN_MASK; - - cnt = X509_NAME_entry_count(n); - for(i = 0; i < cnt; i++) { - if(flags & XN_FLAG_DN_REV) - ent = X509_NAME_get_entry(n, cnt - i - 1); - else ent = X509_NAME_get_entry(n, i); - if(prev != -1) { - if(prev == ent->set) { - if(!io_ch(arg, sep_mv, sep_mv_len)) return -1; - outlen += sep_mv_len; - } else { - if(!io_ch(arg, sep_dn, sep_dn_len)) return -1; - outlen += sep_dn_len; - if(!do_indent(io_ch, arg, indent)) return -1; - outlen += indent; - } - } - prev = ent->set; - fn = X509_NAME_ENTRY_get_object(ent); - val = X509_NAME_ENTRY_get_data(ent); - fn_nid = OBJ_obj2nid(fn); - if(fn_opt != XN_FLAG_FN_NONE) { - int objlen, fld_len; - if((fn_opt == XN_FLAG_FN_OID) || (fn_nid==NID_undef) ) { - OBJ_obj2txt(objtmp, sizeof objtmp, fn, 1); - fld_len = 0; /* XXX: what should this be? */ - objbuf = objtmp; - } else { - if(fn_opt == XN_FLAG_FN_SN) { - fld_len = FN_WIDTH_SN; - objbuf = OBJ_nid2sn(fn_nid); - } else if(fn_opt == XN_FLAG_FN_LN) { - fld_len = FN_WIDTH_LN; - objbuf = OBJ_nid2ln(fn_nid); - } else { - fld_len = 0; /* XXX: what should this be? */ - objbuf = ""; - } - } - objlen = strlen(objbuf); - if(!io_ch(arg, objbuf, objlen)) return -1; - if ((objlen < fld_len) && (flags & XN_FLAG_FN_ALIGN)) { - if (!do_indent(io_ch, arg, fld_len - objlen)) return -1; - outlen += fld_len - objlen; - } - if(!io_ch(arg, sep_eq, sep_eq_len)) return -1; - outlen += objlen + sep_eq_len; - } - /* If the field name is unknown then fix up the DER dump - * flag. We might want to limit this further so it will - * DER dump on anything other than a few 'standard' fields. - */ - if((fn_nid == NID_undef) && (flags & XN_FLAG_DUMP_UNKNOWN_FIELDS)) - orflags = ASN1_STRFLGS_DUMP_ALL; - else orflags = 0; - - len = do_print_ex(io_ch, arg, flags | orflags, val); - if(len < 0) return -1; - outlen += len; - } - return outlen; -} - -/* Wrappers round the main functions */ - -int X509_NAME_print_ex(BIO *out, X509_NAME *nm, int indent, unsigned long flags) -{ - if(flags == XN_FLAG_COMPAT) - return X509_NAME_print(out, nm, indent); - return do_name_ex(send_bio_chars, out, nm, indent, flags); -} - -#ifndef OPENSSL_NO_FP_API -int X509_NAME_print_ex_fp(FILE *fp, X509_NAME *nm, int indent, unsigned long flags) -{ - if(flags == XN_FLAG_COMPAT) - { - BIO *btmp; - int ret; - btmp = BIO_new_fp(fp, BIO_NOCLOSE); - if(!btmp) return -1; - ret = X509_NAME_print(btmp, nm, indent); - BIO_free(btmp); - return ret; - } - return do_name_ex(send_fp_chars, fp, nm, indent, flags); -} -#endif - -int ASN1_STRING_print_ex(BIO *out, ASN1_STRING *str, unsigned long flags) -{ - return do_print_ex(send_bio_chars, out, flags, str); -} - -#ifndef OPENSSL_NO_FP_API -int ASN1_STRING_print_ex_fp(FILE *fp, ASN1_STRING *str, unsigned long flags) -{ - return do_print_ex(send_fp_chars, fp, flags, str); -} -#endif - -/* Utility function: convert any string type to UTF8, returns number of bytes - * in output string or a negative error code - */ - -int ASN1_STRING_to_UTF8(unsigned char **out, ASN1_STRING *in) -{ - ASN1_STRING stmp, *str = &stmp; - int mbflag, type, ret; - if(!in) return -1; - type = in->type; - if((type < 0) || (type > 30)) return -1; - mbflag = tag2nbyte[type]; - if(mbflag == -1) return -1; - mbflag |= MBSTRING_FLAG; - stmp.data = NULL; - ret = ASN1_mbstring_copy(&str, in->data, in->length, mbflag, B_ASN1_UTF8STRING); - if(ret < 0) return ret; - *out = stmp.data; - return stmp.length; -} |