--- /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.]
+ */
+
+/* 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)
+ {
+ 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';
+ }
+
projects / cassiopeia.git / blobdiff