diff options
author | Arne Schwabe <arne@rfc2549.org> | 2012-04-16 19:21:14 +0200 |
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committer | Arne Schwabe <arne@rfc2549.org> | 2012-04-16 19:21:14 +0200 |
commit | 3e4d8f433239c40311037616b1b8833a06651ae0 (patch) | |
tree | 98ab7fce0d011d34677b0beb762d389cb5c39199 /openssl/crypto/conf/conf_def.c |
Initial import
Diffstat (limited to 'openssl/crypto/conf/conf_def.c')
-rw-r--r-- | openssl/crypto/conf/conf_def.c | 740 |
1 files changed, 740 insertions, 0 deletions
diff --git a/openssl/crypto/conf/conf_def.c b/openssl/crypto/conf/conf_def.c new file mode 100644 index 00000000..cf951320 --- /dev/null +++ b/openssl/crypto/conf/conf_def.c @@ -0,0 +1,740 @@ +/* crypto/conf/conf.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * 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 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 acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS 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 AUTHOR OR 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. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +/* Part of the code in here was originally in conf.c, which is now removed */ + +#include <stdio.h> +#include <string.h> +#include "cryptlib.h" +#include <openssl/stack.h> +#include <openssl/lhash.h> +#include <openssl/conf.h> +#include <openssl/conf_api.h> +#include "conf_def.h" +#include <openssl/buffer.h> +#include <openssl/err.h> + +static char *eat_ws(CONF *conf, char *p); +static char *eat_alpha_numeric(CONF *conf, char *p); +static void clear_comments(CONF *conf, char *p); +static int str_copy(CONF *conf,char *section,char **to, char *from); +static char *scan_quote(CONF *conf, char *p); +static char *scan_dquote(CONF *conf, char *p); +#define scan_esc(conf,p) (((IS_EOF((conf),(p)[1]))?((p)+1):((p)+2))) + +static CONF *def_create(CONF_METHOD *meth); +static int def_init_default(CONF *conf); +static int def_init_WIN32(CONF *conf); +static int def_destroy(CONF *conf); +static int def_destroy_data(CONF *conf); +static int def_load(CONF *conf, const char *name, long *eline); +static int def_load_bio(CONF *conf, BIO *bp, long *eline); +static int def_dump(const CONF *conf, BIO *bp); +static int def_is_number(const CONF *conf, char c); +static int def_to_int(const CONF *conf, char c); + +const char CONF_def_version[]="CONF_def" OPENSSL_VERSION_PTEXT; + +static CONF_METHOD default_method = { + "OpenSSL default", + def_create, + def_init_default, + def_destroy, + def_destroy_data, + def_load_bio, + def_dump, + def_is_number, + def_to_int, + def_load + }; + +static CONF_METHOD WIN32_method = { + "WIN32", + def_create, + def_init_WIN32, + def_destroy, + def_destroy_data, + def_load_bio, + def_dump, + def_is_number, + def_to_int, + def_load + }; + +CONF_METHOD *NCONF_default() + { + return &default_method; + } +CONF_METHOD *NCONF_WIN32() + { + return &WIN32_method; + } + +static CONF *def_create(CONF_METHOD *meth) + { + CONF *ret; + + ret = OPENSSL_malloc(sizeof(CONF) + sizeof(unsigned short *)); + if (ret) + if (meth->init(ret) == 0) + { + OPENSSL_free(ret); + ret = NULL; + } + return ret; + } + +static int def_init_default(CONF *conf) + { + if (conf == NULL) + return 0; + + conf->meth = &default_method; + conf->meth_data = CONF_type_default; + conf->data = NULL; + + return 1; + } + +static int def_init_WIN32(CONF *conf) + { + if (conf == NULL) + return 0; + + conf->meth = &WIN32_method; + conf->meth_data = (void *)CONF_type_win32; + conf->data = NULL; + + return 1; + } + +static int def_destroy(CONF *conf) + { + if (def_destroy_data(conf)) + { + OPENSSL_free(conf); + return 1; + } + return 0; + } + +static int def_destroy_data(CONF *conf) + { + if (conf == NULL) + return 0; + _CONF_free_data(conf); + return 1; + } + +static int def_load(CONF *conf, const char *name, long *line) + { + int ret; + BIO *in=NULL; + +#ifdef OPENSSL_SYS_VMS + in=BIO_new_file(name, "r"); +#else + in=BIO_new_file(name, "rb"); +#endif + if (in == NULL) + { + if (ERR_GET_REASON(ERR_peek_last_error()) == BIO_R_NO_SUCH_FILE) + CONFerr(CONF_F_DEF_LOAD,CONF_R_NO_SUCH_FILE); + else + CONFerr(CONF_F_DEF_LOAD,ERR_R_SYS_LIB); + return 0; + } + + ret = def_load_bio(conf, in, line); + BIO_free(in); + + return ret; + } + +static int def_load_bio(CONF *conf, BIO *in, long *line) + { +/* The macro BUFSIZE conflicts with a system macro in VxWorks */ +#define CONFBUFSIZE 512 + int bufnum=0,i,ii; + BUF_MEM *buff=NULL; + char *s,*p,*end; + int again; + long eline=0; + char btmp[DECIMAL_SIZE(eline)+1]; + CONF_VALUE *v=NULL,*tv; + CONF_VALUE *sv=NULL; + char *section=NULL,*buf; + char *start,*psection,*pname; + void *h = (void *)(conf->data); + + if ((buff=BUF_MEM_new()) == NULL) + { + CONFerr(CONF_F_DEF_LOAD_BIO,ERR_R_BUF_LIB); + goto err; + } + + section=(char *)OPENSSL_malloc(10); + if (section == NULL) + { + CONFerr(CONF_F_DEF_LOAD_BIO,ERR_R_MALLOC_FAILURE); + goto err; + } + BUF_strlcpy(section,"default",10); + + if (_CONF_new_data(conf) == 0) + { + CONFerr(CONF_F_DEF_LOAD_BIO,ERR_R_MALLOC_FAILURE); + goto err; + } + + sv=_CONF_new_section(conf,section); + if (sv == NULL) + { + CONFerr(CONF_F_DEF_LOAD_BIO, + CONF_R_UNABLE_TO_CREATE_NEW_SECTION); + goto err; + } + + bufnum=0; + again=0; + for (;;) + { + if (!BUF_MEM_grow(buff,bufnum+CONFBUFSIZE)) + { + CONFerr(CONF_F_DEF_LOAD_BIO,ERR_R_BUF_LIB); + goto err; + } + p= &(buff->data[bufnum]); + *p='\0'; + BIO_gets(in, p, CONFBUFSIZE-1); + p[CONFBUFSIZE-1]='\0'; + ii=i=strlen(p); + if (i == 0 && !again) break; + again=0; + while (i > 0) + { + if ((p[i-1] != '\r') && (p[i-1] != '\n')) + break; + else + i--; + } + /* we removed some trailing stuff so there is a new + * line on the end. */ + if (ii && i == ii) + again=1; /* long line */ + else + { + p[i]='\0'; + eline++; /* another input line */ + } + + /* we now have a line with trailing \r\n removed */ + + /* i is the number of bytes */ + bufnum+=i; + + v=NULL; + /* check for line continuation */ + if (bufnum >= 1) + { + /* If we have bytes and the last char '\\' and + * second last char is not '\\' */ + p= &(buff->data[bufnum-1]); + if (IS_ESC(conf,p[0]) && + ((bufnum <= 1) || !IS_ESC(conf,p[-1]))) + { + bufnum--; + again=1; + } + } + if (again) continue; + bufnum=0; + buf=buff->data; + + clear_comments(conf, buf); + s=eat_ws(conf, buf); + if (IS_EOF(conf,*s)) continue; /* blank line */ + if (*s == '[') + { + char *ss; + + s++; + start=eat_ws(conf, s); + ss=start; +again: + end=eat_alpha_numeric(conf, ss); + p=eat_ws(conf, end); + if (*p != ']') + { + if (*p != '\0') + { + ss=p; + goto again; + } + CONFerr(CONF_F_DEF_LOAD_BIO, + CONF_R_MISSING_CLOSE_SQUARE_BRACKET); + goto err; + } + *end='\0'; + if (!str_copy(conf,NULL,§ion,start)) goto err; + if ((sv=_CONF_get_section(conf,section)) == NULL) + sv=_CONF_new_section(conf,section); + if (sv == NULL) + { + CONFerr(CONF_F_DEF_LOAD_BIO, + CONF_R_UNABLE_TO_CREATE_NEW_SECTION); + goto err; + } + continue; + } + else + { + pname=s; + psection=NULL; + end=eat_alpha_numeric(conf, s); + if ((end[0] == ':') && (end[1] == ':')) + { + *end='\0'; + end+=2; + psection=pname; + pname=end; + end=eat_alpha_numeric(conf, end); + } + p=eat_ws(conf, end); + if (*p != '=') + { + CONFerr(CONF_F_DEF_LOAD_BIO, + CONF_R_MISSING_EQUAL_SIGN); + goto err; + } + *end='\0'; + p++; + start=eat_ws(conf, p); + while (!IS_EOF(conf,*p)) + p++; + p--; + while ((p != start) && (IS_WS(conf,*p))) + p--; + p++; + *p='\0'; + + if (!(v=(CONF_VALUE *)OPENSSL_malloc(sizeof(CONF_VALUE)))) + { + CONFerr(CONF_F_DEF_LOAD_BIO, + ERR_R_MALLOC_FAILURE); + goto err; + } + if (psection == NULL) psection=section; + v->name=(char *)OPENSSL_malloc(strlen(pname)+1); + v->value=NULL; + if (v->name == NULL) + { + CONFerr(CONF_F_DEF_LOAD_BIO, + ERR_R_MALLOC_FAILURE); + goto err; + } + BUF_strlcpy(v->name,pname,strlen(pname)+1); + if (!str_copy(conf,psection,&(v->value),start)) goto err; + + if (strcmp(psection,section) != 0) + { + if ((tv=_CONF_get_section(conf,psection)) + == NULL) + tv=_CONF_new_section(conf,psection); + if (tv == NULL) + { + CONFerr(CONF_F_DEF_LOAD_BIO, + CONF_R_UNABLE_TO_CREATE_NEW_SECTION); + goto err; + } + } + else + tv=sv; +#if 1 + if (_CONF_add_string(conf, tv, v) == 0) + { + CONFerr(CONF_F_DEF_LOAD_BIO, + ERR_R_MALLOC_FAILURE); + goto err; + } +#else + v->section=tv->section; + if (!sk_CONF_VALUE_push(ts,v)) + { + CONFerr(CONF_F_DEF_LOAD_BIO, + ERR_R_MALLOC_FAILURE); + goto err; + } + vv=(CONF_VALUE *)lh_insert(conf->data,v); + if (vv != NULL) + { + sk_CONF_VALUE_delete_ptr(ts,vv); + OPENSSL_free(vv->name); + OPENSSL_free(vv->value); + OPENSSL_free(vv); + } +#endif + v=NULL; + } + } + if (buff != NULL) BUF_MEM_free(buff); + if (section != NULL) OPENSSL_free(section); + return(1); +err: + if (buff != NULL) BUF_MEM_free(buff); + if (section != NULL) OPENSSL_free(section); + if (line != NULL) *line=eline; + BIO_snprintf(btmp,sizeof btmp,"%ld",eline); + ERR_add_error_data(2,"line ",btmp); + if ((h != conf->data) && (conf->data != NULL)) + { + CONF_free(conf->data); + conf->data=NULL; + } + if (v != NULL) + { + if (v->name != NULL) OPENSSL_free(v->name); + if (v->value != NULL) OPENSSL_free(v->value); + if (v != NULL) OPENSSL_free(v); + } + return(0); + } + +static void clear_comments(CONF *conf, char *p) + { + for (;;) + { + if (IS_FCOMMENT(conf,*p)) + { + *p='\0'; + return; + } + if (!IS_WS(conf,*p)) + { + break; + } + p++; + } + + for (;;) + { + if (IS_COMMENT(conf,*p)) + { + *p='\0'; + return; + } + if (IS_DQUOTE(conf,*p)) + { + p=scan_dquote(conf, p); + continue; + } + if (IS_QUOTE(conf,*p)) + { + p=scan_quote(conf, p); + continue; + } + if (IS_ESC(conf,*p)) + { + p=scan_esc(conf,p); + continue; + } + if (IS_EOF(conf,*p)) + return; + else + p++; + } + } + +static int str_copy(CONF *conf, char *section, char **pto, char *from) + { + int q,r,rr=0,to=0,len=0; + char *s,*e,*rp,*p,*rrp,*np,*cp,v; + BUF_MEM *buf; + + if ((buf=BUF_MEM_new()) == NULL) return(0); + + len=strlen(from)+1; + if (!BUF_MEM_grow(buf,len)) goto err; + + for (;;) + { + if (IS_QUOTE(conf,*from)) + { + q= *from; + from++; + while (!IS_EOF(conf,*from) && (*from != q)) + { + if (IS_ESC(conf,*from)) + { + from++; + if (IS_EOF(conf,*from)) break; + } + buf->data[to++]= *(from++); + } + if (*from == q) from++; + } + else if (IS_DQUOTE(conf,*from)) + { + q= *from; + from++; + while (!IS_EOF(conf,*from)) + { + if (*from == q) + { + if (*(from+1) == q) + { + from++; + } + else + { + break; + } + } + buf->data[to++]= *(from++); + } + if (*from == q) from++; + } + else if (IS_ESC(conf,*from)) + { + from++; + v= *(from++); + if (IS_EOF(conf,v)) break; + else if (v == 'r') v='\r'; + else if (v == 'n') v='\n'; + else if (v == 'b') v='\b'; + else if (v == 't') v='\t'; + buf->data[to++]= v; + } + else if (IS_EOF(conf,*from)) + break; + else if (*from == '$') + { + /* try to expand it */ + rrp=NULL; + s= &(from[1]); + if (*s == '{') + q='}'; + else if (*s == '(') + q=')'; + else q=0; + + if (q) s++; + cp=section; + e=np=s; + while (IS_ALPHA_NUMERIC(conf,*e)) + e++; + if ((e[0] == ':') && (e[1] == ':')) + { + cp=np; + rrp=e; + rr= *e; + *rrp='\0'; + e+=2; + np=e; + while (IS_ALPHA_NUMERIC(conf,*e)) + e++; + } + r= *e; + *e='\0'; + rp=e; + if (q) + { + if (r != q) + { + CONFerr(CONF_F_STR_COPY,CONF_R_NO_CLOSE_BRACE); + goto err; + } + e++; + } + /* So at this point we have + * np which is the start of the name string which is + * '\0' terminated. + * cp which is the start of the section string which is + * '\0' terminated. + * e is the 'next point after'. + * r and rr are the chars replaced by the '\0' + * rp and rrp is where 'r' and 'rr' came from. + */ + p=_CONF_get_string(conf,cp,np); + if (rrp != NULL) *rrp=rr; + *rp=r; + if (p == NULL) + { + CONFerr(CONF_F_STR_COPY,CONF_R_VARIABLE_HAS_NO_VALUE); + goto err; + } + BUF_MEM_grow_clean(buf,(strlen(p)+buf->length-(e-from))); + while (*p) + buf->data[to++]= *(p++); + + /* Since we change the pointer 'from', we also have + to change the perceived length of the string it + points at. /RL */ + len -= e-from; + from=e; + + /* In case there were no braces or parenthesis around + the variable reference, we have to put back the + character that was replaced with a '\0'. /RL */ + *rp = r; + } + else + buf->data[to++]= *(from++); + } + buf->data[to]='\0'; + if (*pto != NULL) OPENSSL_free(*pto); + *pto=buf->data; + OPENSSL_free(buf); + return(1); +err: + if (buf != NULL) BUF_MEM_free(buf); + return(0); + } + +static char *eat_ws(CONF *conf, char *p) + { + while (IS_WS(conf,*p) && (!IS_EOF(conf,*p))) + p++; + return(p); + } + +static char *eat_alpha_numeric(CONF *conf, char *p) + { + for (;;) + { + if (IS_ESC(conf,*p)) + { + p=scan_esc(conf,p); + continue; + } + if (!IS_ALPHA_NUMERIC_PUNCT(conf,*p)) + return(p); + p++; + } + } + +static char *scan_quote(CONF *conf, char *p) + { + int q= *p; + + p++; + while (!(IS_EOF(conf,*p)) && (*p != q)) + { + if (IS_ESC(conf,*p)) + { + p++; + if (IS_EOF(conf,*p)) return(p); + } + p++; + } + if (*p == q) p++; + return(p); + } + + +static char *scan_dquote(CONF *conf, char *p) + { + int q= *p; + + p++; + while (!(IS_EOF(conf,*p))) + { + if (*p == q) + { + if (*(p+1) == q) + { + p++; + } + else + { + break; + } + } + p++; + } + if (*p == q) p++; + return(p); + } + +static void dump_value_doall_arg(CONF_VALUE *a, BIO *out) + { + if (a->name) + BIO_printf(out, "[%s] %s=%s\n", a->section, a->name, a->value); + else + BIO_printf(out, "[[%s]]\n", a->section); + } + +static IMPLEMENT_LHASH_DOALL_ARG_FN(dump_value, CONF_VALUE, BIO) + +static int def_dump(const CONF *conf, BIO *out) + { + lh_CONF_VALUE_doall_arg(conf->data, LHASH_DOALL_ARG_FN(dump_value), + BIO, out); + return 1; + } + +static int def_is_number(const CONF *conf, char c) + { + return IS_NUMBER(conf,c); + } + +static int def_to_int(const CONF *conf, char c) + { + return c - '0'; + } + |