+++ /dev/null
-/* 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.]
- */
-
-#include <stdio.h>
-#include <errno.h>
-#include "cryptlib.h"
-#include <openssl/stack.h>
-#include <openssl/lhash.h>
-#include <openssl/conf.h>
-#include <openssl/buffer.h>
-#include <openssl/err.h>
-
-#include "conf_lcl.h"
-
-static void value_free_hash(CONF_VALUE *a, LHASH *conf);
-static void value_free_stack(CONF_VALUE *a,LHASH *conf);
-static unsigned long hash(CONF_VALUE *v);
-static int cmp_conf(CONF_VALUE *a,CONF_VALUE *b);
-static char *eat_ws(char *p);
-static char *eat_alpha_numeric(char *p);
-static void clear_comments(char *p);
-static int str_copy(LHASH *conf,char *section,char **to, char *from);
-static char *scan_quote(char *p);
-static CONF_VALUE *new_section(LHASH *conf,char *section);
-static CONF_VALUE *get_section(LHASH *conf,char *section);
-#define scan_esc(p) ((((p)[1] == '\0')?(p++):(p+=2)),p)
-
-const char *CONF_version="CONF" OPENSSL_VERSION_PTEXT;
-
-
-LHASH *CONF_load(LHASH *h, const char *file, long *line)
- {
- LHASH *ltmp;
- BIO *in=NULL;
-
-#ifdef VMS
- in=BIO_new_file(file, "r");
-#else
- in=BIO_new_file(file, "rb");
-#endif
- if (in == NULL)
- {
- CONFerr(CONF_F_CONF_LOAD,ERR_R_SYS_LIB);
- return NULL;
- }
-
- ltmp = CONF_load_bio(h, in, line);
- BIO_free(in);
-
- return ltmp;
-}
-#ifndef NO_FP_API
-LHASH *CONF_load_fp(LHASH *h, FILE *in, long *line)
-{
- BIO *btmp;
- LHASH *ltmp;
- if(!(btmp = BIO_new_fp(in, BIO_NOCLOSE))) {
- CONFerr(CONF_F_CONF_LOAD_FP,ERR_R_BUF_LIB);
- return NULL;
- }
- ltmp = CONF_load_bio(h, btmp, line);
- BIO_free(btmp);
- return ltmp;
-}
-#endif
-
-LHASH *CONF_load_bio(LHASH *h, BIO *in, long *line)
- {
- LHASH *ret=NULL;
-#define BUFSIZE 512
- char btmp[16];
- int bufnum=0,i,ii;
- BUF_MEM *buff=NULL;
- char *s,*p,*end;
- int again,n;
- long eline=0;
- CONF_VALUE *v=NULL,*vv,*tv;
- CONF_VALUE *sv=NULL;
- char *section=NULL,*buf;
- STACK_OF(CONF_VALUE) *section_sk=NULL,*ts;
- char *start,*psection,*pname;
-
- if ((buff=BUF_MEM_new()) == NULL)
- {
- CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_BUF_LIB);
- goto err;
- }
-
- section=(char *)Malloc(10);
- if (section == NULL)
- {
- CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- strcpy(section,"default");
-
- if (h == NULL)
- {
- if ((ret=lh_new(hash,cmp_conf)) == NULL)
- {
- CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- }
- else
- ret=h;
-
- sv=new_section(ret,section);
- if (sv == NULL)
- {
- CONFerr(CONF_F_CONF_LOAD_BIO,
- CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
- goto err;
- }
- section_sk=(STACK_OF(CONF_VALUE) *)sv->value;
-
- bufnum=0;
- for (;;)
- {
- again=0;
- if (!BUF_MEM_grow(buff,bufnum+BUFSIZE))
- {
- CONFerr(CONF_F_CONF_LOAD_BIO,ERR_R_BUF_LIB);
- goto err;
- }
- p= &(buff->data[bufnum]);
- *p='\0';
- BIO_gets(in, p, BUFSIZE-1);
- p[BUFSIZE-1]='\0';
- ii=i=strlen(p);
- if (i == 0) break;
- 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 (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(p[0]) &&
- ((bufnum <= 1) || !IS_ESC(p[-1])))
- {
- bufnum--;
- again=1;
- }
- }
- if (again) continue;
- bufnum=0;
- buf=buff->data;
-
- clear_comments(buf);
- n=strlen(buf);
- s=eat_ws(buf);
- if (IS_EOF(*s)) continue; /* blank line */
- if (*s == '[')
- {
- char *ss;
-
- s++;
- start=eat_ws(s);
- ss=start;
-again:
- end=eat_alpha_numeric(ss);
- p=eat_ws(end);
- if (*p != ']')
- {
- if (*p != '\0')
- {
- ss=p;
- goto again;
- }
- CONFerr(CONF_F_CONF_LOAD_BIO,
- CONF_R_MISSING_CLOSE_SQUARE_BRACKET);
- goto err;
- }
- *end='\0';
- if (!str_copy(ret,NULL,§ion,start)) goto err;
- if ((sv=get_section(ret,section)) == NULL)
- sv=new_section(ret,section);
- if (sv == NULL)
- {
- CONFerr(CONF_F_CONF_LOAD_BIO,
- CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
- goto err;
- }
- section_sk=(STACK_OF(CONF_VALUE) *)sv->value;
- continue;
- }
- else
- {
- pname=s;
- psection=NULL;
- end=eat_alpha_numeric(s);
- if ((end[0] == ':') && (end[1] == ':'))
- {
- *end='\0';
- end+=2;
- psection=pname;
- pname=end;
- end=eat_alpha_numeric(end);
- }
- p=eat_ws(end);
- if (*p != '=')
- {
- CONFerr(CONF_F_CONF_LOAD_BIO,
- CONF_R_MISSING_EQUAL_SIGN);
- goto err;
- }
- *end='\0';
- p++;
- start=eat_ws(p);
- while (!IS_EOF(*p))
- p++;
- p--;
- while ((p != start) && (IS_WS(*p)))
- p--;
- p++;
- *p='\0';
-
- if (!(v=(CONF_VALUE *)Malloc(sizeof(CONF_VALUE))))
- {
- CONFerr(CONF_F_CONF_LOAD_BIO,
- ERR_R_MALLOC_FAILURE);
- goto err;
- }
- if (psection == NULL) psection=section;
- v->name=(char *)Malloc(strlen(pname)+1);
- v->value=NULL;
- if (v->name == NULL)
- {
- CONFerr(CONF_F_CONF_LOAD_BIO,
- ERR_R_MALLOC_FAILURE);
- goto err;
- }
- strcpy(v->name,pname);
- if (!str_copy(ret,psection,&(v->value),start)) goto err;
-
- if (strcmp(psection,section) != 0)
- {
- if ((tv=get_section(ret,psection))
- == NULL)
- tv=new_section(ret,psection);
- if (tv == NULL)
- {
- CONFerr(CONF_F_CONF_LOAD_BIO,
- CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
- goto err;
- }
- ts=(STACK_OF(CONF_VALUE) *)tv->value;
- }
- else
- {
- tv=sv;
- ts=section_sk;
- }
- v->section=tv->section;
- if (!sk_CONF_VALUE_push(ts,v))
- {
- CONFerr(CONF_F_CONF_LOAD_BIO,
- ERR_R_MALLOC_FAILURE);
- goto err;
- }
- vv=(CONF_VALUE *)lh_insert(ret,v);
- if (vv != NULL)
- {
- sk_CONF_VALUE_delete_ptr(ts,vv);
- Free(vv->name);
- Free(vv->value);
- Free(vv);
- }
- v=NULL;
- }
- }
- if (buff != NULL) BUF_MEM_free(buff);
- if (section != NULL) Free(section);
- return(ret);
-err:
- if (buff != NULL) BUF_MEM_free(buff);
- if (section != NULL) Free(section);
- if (line != NULL) *line=eline;
- sprintf(btmp,"%ld",eline);
- ERR_add_error_data(2,"line ",btmp);
- if ((h != ret) && (ret != NULL)) CONF_free(ret);
- if (v != NULL)
- {
- if (v->name != NULL) Free(v->name);
- if (v->value != NULL) Free(v->value);
- if (v != NULL) Free(v);
- }
- return(NULL);
- }
-
-char *CONF_get_string(LHASH *conf, char *section, char *name)
- {
- CONF_VALUE *v,vv;
- char *p;
-
- if (name == NULL) return(NULL);
- if (conf != NULL)
- {
- if (section != NULL)
- {
- vv.name=name;
- vv.section=section;
- v=(CONF_VALUE *)lh_retrieve(conf,&vv);
- if (v != NULL) return(v->value);
- if (strcmp(section,"ENV") == 0)
- {
- p=Getenv(name);
- if (p != NULL) return(p);
- }
- }
- vv.section="default";
- vv.name=name;
- v=(CONF_VALUE *)lh_retrieve(conf,&vv);
- if (v != NULL)
- return(v->value);
- else
- return(NULL);
- }
- else
- return(Getenv(name));
- }
-
-static CONF_VALUE *get_section(LHASH *conf, char *section)
- {
- CONF_VALUE *v,vv;
-
- if ((conf == NULL) || (section == NULL)) return(NULL);
- vv.name=NULL;
- vv.section=section;
- v=(CONF_VALUE *)lh_retrieve(conf,&vv);
- return(v);
- }
-
-STACK_OF(CONF_VALUE) *CONF_get_section(LHASH *conf, char *section)
- {
- CONF_VALUE *v;
-
- v=get_section(conf,section);
- if (v != NULL)
- return((STACK_OF(CONF_VALUE) *)v->value);
- else
- return(NULL);
- }
-
-long CONF_get_number(LHASH *conf, char *section, char *name)
- {
- char *str;
- long ret=0;
-
- str=CONF_get_string(conf,section,name);
- if (str == NULL) return(0);
- for (;;)
- {
- if (IS_NUMER(*str))
- ret=ret*10+(*str -'0');
- else
- return(ret);
- str++;
- }
- }
-
-void CONF_free(LHASH *conf)
- {
- if (conf == NULL) return;
-
- conf->down_load=0; /* evil thing to make sure the 'Free()'
- * works as expected */
- lh_doall_arg(conf,(void (*)())value_free_hash,conf);
-
- /* We now have only 'section' entries in the hash table.
- * Due to problems with */
-
- lh_doall_arg(conf,(void (*)())value_free_stack,conf);
- lh_free(conf);
- }
-
-static void value_free_hash(CONF_VALUE *a, LHASH *conf)
- {
- if (a->name != NULL)
- {
- a=(CONF_VALUE *)lh_delete(conf,a);
- }
- }
-
-static void value_free_stack(CONF_VALUE *a, LHASH *conf)
- {
- CONF_VALUE *vv;
- STACK *sk;
- int i;
-
- if (a->name != NULL) return;
-
- sk=(STACK *)a->value;
- for (i=sk_num(sk)-1; i>=0; i--)
- {
- vv=(CONF_VALUE *)sk_value(sk,i);
- Free(vv->value);
- Free(vv->name);
- Free(vv);
- }
- if (sk != NULL) sk_free(sk);
- Free(a->section);
- Free(a);
- }
-
-static void clear_comments(char *p)
- {
- char *to;
-
- to=p;
- for (;;)
- {
- if (IS_COMMENT(*p))
- {
- *p='\0';
- return;
- }
- if (IS_QUOTE(*p))
- {
- p=scan_quote(p);
- continue;
- }
- if (IS_ESC(*p))
- {
- p=scan_esc(p);
- continue;
- }
- if (IS_EOF(*p))
- return;
- else
- p++;
- }
- }
-
-static int str_copy(LHASH *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(*from))
- {
- q= *from;
- from++;
- while ((*from != '\0') && (*from != q))
- {
- if (*from == '\\')
- {
- from++;
- if (*from == '\0') break;
- }
- buf->data[to++]= *(from++);
- }
- }
- else if (*from == '\\')
- {
- from++;
- v= *(from++);
- if (v == '\0') 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 (*from == '\0')
- 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(*e))
- e++;
- if ((e[0] == ':') && (e[1] == ':'))
- {
- cp=np;
- rrp=e;
- rr= *e;
- *rrp='\0';
- e+=2;
- np=e;
- while (IS_ALPHA_NUMERIC(*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
- * ns which is the start of the name string which is
- * '\0' terminated.
- * cs which is the start of the section string which is
- * '\0' terminated.
- * e is the 'next point after'.
- * r and s are the chars replaced by the '\0'
- * rp and sp is where 'r' and 's' 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(buf,(strlen(p)+len-(e-from)));
- while (*p)
- buf->data[to++]= *(p++);
- from=e;
- }
- else
- buf->data[to++]= *(from++);
- }
- buf->data[to]='\0';
- if (*pto != NULL) Free(*pto);
- *pto=buf->data;
- Free(buf);
- return(1);
-err:
- if (buf != NULL) BUF_MEM_free(buf);
- return(0);
- }
-
-static char *eat_ws(char *p)
- {
- while (IS_WS(*p) && (!IS_EOF(*p)))
- p++;
- return(p);
- }
-
-static char *eat_alpha_numeric(char *p)
- {
- for (;;)
- {
- if (IS_ESC(*p))
- {
- p=scan_esc(p);
- continue;
- }
- if (!IS_ALPHA_NUMERIC_PUNCT(*p))
- return(p);
- p++;
- }
- }
-
-static unsigned long hash(CONF_VALUE *v)
- {
- return((lh_strhash(v->section)<<2)^lh_strhash(v->name));
- }
-
-static int cmp_conf(CONF_VALUE *a, CONF_VALUE *b)
- {
- int i;
-
- if (a->section != b->section)
- {
- i=strcmp(a->section,b->section);
- if (i) return(i);
- }
-
- if ((a->name != NULL) && (b->name != NULL))
- {
- i=strcmp(a->name,b->name);
- return(i);
- }
- else if (a->name == b->name)
- return(0);
- else
- return((a->name == NULL)?-1:1);
- }
-
-static char *scan_quote(char *p)
- {
- int q= *p;
-
- p++;
- while (!(IS_EOF(*p)) && (*p != q))
- {
- if (IS_ESC(*p))
- {
- p++;
- if (IS_EOF(*p)) return(p);
- }
- p++;
- }
- if (*p == q) p++;
- return(p);
- }
-
-static CONF_VALUE *new_section(LHASH *conf, char *section)
- {
- STACK *sk=NULL;
- int ok=0,i;
- CONF_VALUE *v=NULL,*vv;
-
- if ((sk=sk_new_null()) == NULL)
- goto err;
- if ((v=(CONF_VALUE *)Malloc(sizeof(CONF_VALUE))) == NULL)
- goto err;
- i=strlen(section)+1;
- if ((v->section=(char *)Malloc(i)) == NULL)
- goto err;
-
- memcpy(v->section,section,i);
- v->name=NULL;
- v->value=(char *)sk;
-
- vv=(CONF_VALUE *)lh_insert(conf,v);
- if (vv != NULL)
- {
-#if !defined(NO_STDIO) && !defined(WIN16)
- fprintf(stderr,"internal fault\n");
-#endif
- abort();
- }
- ok=1;
-err:
- if (!ok)
- {
- if (sk != NULL) sk_free(sk);
- if (v != NULL) Free(v);
- v=NULL;
- }
- return(v);
- }
-
-IMPLEMENT_STACK_OF(CONF_VALUE)
projects / oweals / openssl.git / commitdiff