This commit was manufactured by cvs2git to create tag 'OPENBSD_2_4_BASE'.OPENBSD_2_4_BASE

1 files changed, 727 insertions, 0 deletions

diff --git a/src/lib/libcrypto/conf/conf.c b/src/lib/libcrypto/conf/conf.c
new file mode 100644
index 0000000000..9e84300c5e
--- /dev/null
+++ b/src/lib/libcrypto/conf/conf.c
@@ -0,0 +1,727 @@
+/* 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 "stack.h"
+#include "lhash.h"
+#include "conf.h"
+#include "buffer.h"
+#include "err.h"
+
+#include "conf_lcl.h"
+
+#ifndef NOPROTO
+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_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);
+#else
+static void value_free_hash();
+static void value_free_stack();
+static unsigned long hash();
+static int cmp();
+static char *eat_ws();
+static char *eat_alpha_numeric();
+static void clear_comments();
+static int str_copy();
+static char *scan_quote();
+static CONF_VALUE *new_section();
+static CONF_VALUE *get_section();
+#endif
+
+#define scan_esc(p)     ((*(++p) == '\0')?(p):(++p))
+
+char *CONF_version="CONF part of SSLeay 0.9.0b 29-Jun-1998";
+
+LHASH *CONF_load(h,file,line)
+LHASH *h;
+char *file;
+long *line;
+        {
+        LHASH *ret=NULL;
+        FILE *in=NULL;
+#define BUFSIZE 512
+        int bufnum=0,i,ii;
+        BUF_MEM *buff=NULL;
+        char *s,*p,*end;
+        int again,n,eline=0;
+        CONF_VALUE *v=NULL,*vv,*tv;
+        CONF_VALUE *sv=NULL;
+        char *section=NULL,*buf;
+        STACK *section_sk=NULL,*ts;
+        char *start,*psection,*pname;
+
+        if ((buff=BUF_MEM_new()) == NULL)
+                {
+                CONFerr(CONF_F_CONF_LOAD,ERR_R_BUF_LIB);
+                goto err;
+                }
+
+        in=fopen(file,"rb");
+        if (in == NULL)
+                {
+                SYSerr(SYS_F_FOPEN,get_last_sys_error());
+                ERR_set_error_data(BUF_strdup(file),
+                        ERR_TXT_MALLOCED|ERR_TXT_STRING);
+                CONFerr(CONF_F_CONF_LOAD,ERR_R_SYS_LIB);
+                goto err;
+                }
+
+        section=(char *)Malloc(10);
+        if (section == NULL)
+                {
+                CONFerr(CONF_F_CONF_LOAD,ERR_R_MALLOC_FAILURE);
+                goto err;
+                }
+        strcpy(section,"default");
+
+        if (h == NULL)
+                {
+                if ((ret=lh_new(hash,cmp)) == NULL)
+                        {
+                        CONFerr(CONF_F_CONF_LOAD,ERR_R_MALLOC_FAILURE);
+                        goto err;
+                        }
+                }
+        else
+                ret=h;
+
+        sv=new_section(ret,section);
+        if (sv == NULL)
+                {
+                CONFerr(CONF_F_CONF_LOAD,CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
+                goto err;
+                }
+        section_sk=(STACK *)sv->value;
+
+        bufnum=0;
+        for (;;)
+                {
+                again=0;
+                if (!BUF_MEM_grow(buff,bufnum+BUFSIZE))
+                        {
+                        CONFerr(CONF_F_CONF_LOAD,ERR_R_BUF_LIB);
+                        goto err;
+                        }
+                p= &(buff->data[bufnum]);
+                *p='\0';
+                fgets(p,BUFSIZE-1,in);
+                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 == '[')
+                        {
+                        s++;
+                        start=eat_ws(s);
+                        end=eat_alpha_numeric(start);
+                        p=eat_ws(end);
+                        if (*p != ']')
+                                {
+                                CONFerr(CONF_F_CONF_LOAD,CONF_R_MISSING_CLOSE_SQUARE_BRACKET);
+                                goto err;
+                                }
+                        *end='\0';
+                        if (!str_copy(ret,NULL,&section,start)) goto err;
+                        if ((sv=get_section(ret,section)) == NULL)
+                                sv=new_section(ret,section);
+                        if (sv == NULL)
+                                {
+                                CONFerr(CONF_F_CONF_LOAD,CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
+                                goto err;
+                                }
+                        section_sk=(STACK *)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,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))) == NULL)
+                                {
+                                CONFerr(CONF_F_CONF_LOAD,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,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,CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
+                                        goto err;
+                                        }
+                                ts=(STACK *)tv->value;
+                                }
+                        else
+                                {
+                                tv=sv;
+                                ts=section_sk;
+                                }
+                        v->section=tv->section; 
+                        if (!sk_push(ts,(char *)v))
+                                {
+                                CONFerr(CONF_F_CONF_LOAD,ERR_R_MALLOC_FAILURE);
+                                goto err;
+                                }
+                        vv=(CONF_VALUE *)lh_insert(ret,(char *)v);
+                        if (vv != NULL)
+                                {
+                                sk_delete_ptr(ts,(char *)vv);
+                                Free(vv->name);
+                                Free(vv->value);
+                                Free(vv);
+                                }
+                        v=NULL;
+                        }
+                }
+        if (buff != NULL) BUF_MEM_free(buff);
+        if (section != NULL) Free(section);
+        if (in != NULL) fclose(in);
+        return(ret);
+err:
+        if (buff != NULL) BUF_MEM_free(buff);
+        if (section != NULL) Free(section);
+        if (line != NULL) *line=eline;
+        if (in != NULL) fclose(in);
+        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(conf,section,name)
+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,(char *)&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,(char *)&vv);
+                if (v != NULL)
+                        return(v->value);
+                else
+                        return(NULL);
+                }
+        else
+                return(Getenv(name));
+        }
+
+static CONF_VALUE *get_section(conf,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,(char *)&vv);
+        return(v);
+        }
+
+STACK *CONF_get_section(conf,section)
+LHASH *conf;
+char *section;
+        {
+        CONF_VALUE *v;
+
+        v=get_section(conf,section);
+        if (v != NULL)
+                return((STACK *)v->value);
+        else
+                return(NULL);
+        }
+
+long CONF_get_number(conf,section,name)
+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(conf)
+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,(char *)conf);
+
+        /* We now have only 'section' entries in the hash table.
+         * Due to problems with */
+
+        lh_doall_arg(conf,(void (*)())value_free_stack,(char *)conf);
+        lh_free(conf);
+        }
+
+static void value_free_hash(a,conf)
+CONF_VALUE *a;
+LHASH *conf;
+        {
+        if (a->name != NULL)
+                {
+                a=(CONF_VALUE *)lh_delete(conf,(char *)a);
+                }
+        }
+
+static void value_free_stack(a,conf)
+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(p)
+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(conf,section,pto,from)
+LHASH *conf;
+char *section;
+char **pto,*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(p)
+char *p;
+        {
+        while (IS_WS(*p) && (!IS_EOF(*p)))
+                p++;
+        return(p);
+        }
+
+static char *eat_alpha_numeric(p)
+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(v)
+CONF_VALUE *v;
+        {
+        return((lh_strhash(v->section)<<2)^lh_strhash(v->name));
+        }
+
+static int cmp(a,b)
+CONF_VALUE *a,*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(p)
+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(conf,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,(char *)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);
+        }