--- /dev/null
+/* crypto/txt_db/txt_db.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 <stdlib.h>
+#include <string.h>
+#include "cryptlib.h"
+#include <openssl/buffer.h>
+#include <openssl/txt_db.h>
+
+#undef BUFSIZE
+#define BUFSIZE 512
+
+const char TXT_DB_version[]="TXT_DB" OPENSSL_VERSION_PTEXT;
+
+TXT_DB *TXT_DB_read(BIO *in, int num)
+ {
+ TXT_DB *ret=NULL;
+ int er=1;
+ int esc=0;
+ long ln=0;
+ int i,add,n;
+ int size=BUFSIZE;
+ int offset=0;
+ char *p,*f;
+ OPENSSL_STRING *pp;
+ BUF_MEM *buf=NULL;
+
+ if ((buf=BUF_MEM_new()) == NULL) goto err;
+ if (!BUF_MEM_grow(buf,size)) goto err;
+
+ if ((ret=OPENSSL_malloc(sizeof(TXT_DB))) == NULL)
+ goto err;
+ ret->num_fields=num;
+ ret->index=NULL;
+ ret->qual=NULL;
+ if ((ret->data=sk_OPENSSL_PSTRING_new_null()) == NULL)
+ goto err;
+ if ((ret->index=OPENSSL_malloc(sizeof(*ret->index)*num)) == NULL)
+ goto err;
+ if ((ret->qual=OPENSSL_malloc(sizeof(*(ret->qual))*num)) == NULL)
+ goto err;
+ for (i=0; i<num; i++)
+ {
+ ret->index[i]=NULL;
+ ret->qual[i]=NULL;
+ }
+
+ add=(num+1)*sizeof(char *);
+ buf->data[size-1]='\0';
+ offset=0;
+ for (;;)
+ {
+ if (offset != 0)
+ {
+ size+=BUFSIZE;
+ if (!BUF_MEM_grow_clean(buf,size)) goto err;
+ }
+ buf->data[offset]='\0';
+ BIO_gets(in,&(buf->data[offset]),size-offset);
+ ln++;
+ if (buf->data[offset] == '\0') break;
+ if ((offset == 0) && (buf->data[0] == '#')) continue;
+ i=strlen(&(buf->data[offset]));
+ offset+=i;
+ if (buf->data[offset-1] != '\n')
+ continue;
+ else
+ {
+ buf->data[offset-1]='\0'; /* blat the '\n' */
+ if (!(p=OPENSSL_malloc(add+offset))) goto err;
+ offset=0;
+ }
+ pp=(char **)p;
+ p+=add;
+ n=0;
+ pp[n++]=p;
+ i=0;
+ f=buf->data;
+
+ esc=0;
+ for (;;)
+ {
+ if (*f == '\0') break;
+ if (*f == '\t')
+ {
+ if (esc)
+ p--;
+ else
+ {
+ *(p++)='\0';
+ f++;
+ if (n >= num) break;
+ pp[n++]=p;
+ continue;
+ }
+ }
+ esc=(*f == '\\');
+ *(p++)= *(f++);
+ }
+ *(p++)='\0';
+ if ((n != num) || (*f != '\0'))
+ {
+#if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16) /* temporary fix :-( */
+ fprintf(stderr,"wrong number of fields on line %ld (looking for field %d, got %d, '%s' left)\n",ln,num,n,f);
+#endif
+ er=2;
+ goto err;
+ }
+ pp[n]=p;
+ if (!sk_OPENSSL_PSTRING_push(ret->data,pp))
+ {
+#if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16) /* temporary fix :-( */
+ fprintf(stderr,"failure in sk_push\n");
+#endif
+ er=2;
+ goto err;
+ }
+ }
+ er=0;
+err:
+ BUF_MEM_free(buf);
+ if (er)
+ {
+#if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16)
+ if (er == 1) fprintf(stderr,"OPENSSL_malloc failure\n");
+#endif
+ if (ret != NULL)
+ {
+ if (ret->data != NULL) sk_OPENSSL_PSTRING_free(ret->data);
+ if (ret->index != NULL) OPENSSL_free(ret->index);
+ if (ret->qual != NULL) OPENSSL_free(ret->qual);
+ if (ret != NULL) OPENSSL_free(ret);
+ }
+ return(NULL);
+ }
+ else
+ return(ret);
+ }
+
+OPENSSL_STRING *TXT_DB_get_by_index(TXT_DB *db, int idx, OPENSSL_STRING *value)
+ {
+ OPENSSL_STRING *ret;
+ LHASH_OF(OPENSSL_STRING) *lh;
+
+ if (idx >= db->num_fields)
+ {
+ db->error=DB_ERROR_INDEX_OUT_OF_RANGE;
+ return(NULL);
+ }
+ lh=db->index[idx];
+ if (lh == NULL)
+ {
+ db->error=DB_ERROR_NO_INDEX;
+ return(NULL);
+ }
+ ret=lh_OPENSSL_STRING_retrieve(lh,value);
+ db->error=DB_ERROR_OK;
+ return(ret);
+ }
+
+int TXT_DB_create_index(TXT_DB *db, int field, int (*qual)(OPENSSL_STRING *),
+ LHASH_HASH_FN_TYPE hash, LHASH_COMP_FN_TYPE cmp)
+ {
+ LHASH_OF(OPENSSL_STRING) *idx;
+ OPENSSL_STRING *r;
+ int i,n;
+
+ if (field >= db->num_fields)
+ {
+ db->error=DB_ERROR_INDEX_OUT_OF_RANGE;
+ return(0);
+ }
+ /* FIXME: we lose type checking at this point */
+ if ((idx=(LHASH_OF(OPENSSL_STRING) *)lh_new(hash,cmp)) == NULL)
+ {
+ db->error=DB_ERROR_MALLOC;
+ return(0);
+ }
+ n=sk_OPENSSL_PSTRING_num(db->data);
+ for (i=0; i<n; i++)
+ {
+ r=sk_OPENSSL_PSTRING_value(db->data,i);
+ if ((qual != NULL) && (qual(r) == 0)) continue;
+ if ((r=lh_OPENSSL_STRING_insert(idx,r)) != NULL)
+ {
+ db->error=DB_ERROR_INDEX_CLASH;
+ db->arg1=sk_OPENSSL_PSTRING_find(db->data,r);
+ db->arg2=i;
+ lh_OPENSSL_STRING_free(idx);
+ return(0);
+ }
+ }
+ if (db->index[field] != NULL) lh_OPENSSL_STRING_free(db->index[field]);
+ db->index[field]=idx;
+ db->qual[field]=qual;
+ return(1);
+ }
+
+long TXT_DB_write(BIO *out, TXT_DB *db)
+ {
+ long i,j,n,nn,l,tot=0;
+ char *p,**pp,*f;
+ BUF_MEM *buf=NULL;
+ long ret= -1;
+
+ if ((buf=BUF_MEM_new()) == NULL)
+ goto err;
+ n=sk_OPENSSL_PSTRING_num(db->data);
+ nn=db->num_fields;
+ for (i=0; i<n; i++)
+ {
+ pp=sk_OPENSSL_PSTRING_value(db->data,i);
+
+ l=0;
+ for (j=0; j<nn; j++)
+ {
+ if (pp[j] != NULL)
+ l+=strlen(pp[j]);
+ }
+ if (!BUF_MEM_grow_clean(buf,(int)(l*2+nn))) goto err;
+
+ p=buf->data;
+ for (j=0; j<nn; j++)
+ {
+ f=pp[j];
+ if (f != NULL)
+ for (;;)
+ {
+ if (*f == '\0') break;
+ if (*f == '\t') *(p++)='\\';
+ *(p++)= *(f++);
+ }
+ *(p++)='\t';
+ }
+ p[-1]='\n';
+ j=p-buf->data;
+ if (BIO_write(out,buf->data,(int)j) != j)
+ goto err;
+ tot+=j;
+ }
+ ret=tot;
+err:
+ if (buf != NULL) BUF_MEM_free(buf);
+ return(ret);
+ }
+
+int TXT_DB_insert(TXT_DB *db, OPENSSL_STRING *row)
+ {
+ int i;
+ OPENSSL_STRING *r;
+
+ for (i=0; i<db->num_fields; i++)
+ {
+ if (db->index[i] != NULL)
+ {
+ if ((db->qual[i] != NULL) &&
+ (db->qual[i](row) == 0)) continue;
+ r=lh_OPENSSL_STRING_retrieve(db->index[i],row);
+ if (r != NULL)
+ {
+ db->error=DB_ERROR_INDEX_CLASH;
+ db->arg1=i;
+ db->arg_row=r;
+ goto err;
+ }
+ }
+ }
+ /* We have passed the index checks, now just append and insert */
+ if (!sk_OPENSSL_PSTRING_push(db->data,row))
+ {
+ db->error=DB_ERROR_MALLOC;
+ goto err;
+ }
+
+ for (i=0; i<db->num_fields; i++)
+ {
+ if (db->index[i] != NULL)
+ {
+ if ((db->qual[i] != NULL) &&
+ (db->qual[i](row) == 0)) continue;
+ (void)lh_OPENSSL_STRING_insert(db->index[i],row);
+ }
+ }
+ return(1);
+err:
+ return(0);
+ }
+
+void TXT_DB_free(TXT_DB *db)
+ {
+ int i,n;
+ char **p,*max;
+
+ if(db == NULL)
+ return;
+
+ if (db->index != NULL)
+ {
+ for (i=db->num_fields-1; i>=0; i--)
+ if (db->index[i] != NULL) lh_OPENSSL_STRING_free(db->index[i]);
+ OPENSSL_free(db->index);
+ }
+ if (db->qual != NULL)
+ OPENSSL_free(db->qual);
+ if (db->data != NULL)
+ {
+ for (i=sk_OPENSSL_PSTRING_num(db->data)-1; i>=0; i--)
+ {
+ /* check if any 'fields' have been allocated
+ * from outside of the initial block */
+ p=sk_OPENSSL_PSTRING_value(db->data,i);
+ max=p[db->num_fields]; /* last address */
+ if (max == NULL) /* new row */
+ {
+ for (n=0; n<db->num_fields; n++)
+ if (p[n] != NULL) OPENSSL_free(p[n]);
+ }
+ else
+ {
+ for (n=0; n<db->num_fields; n++)
+ {
+ if (((p[n] < (char *)p) || (p[n] > max))
+ && (p[n] != NULL))
+ OPENSSL_free(p[n]);
+ }
+ }
+ OPENSSL_free(sk_OPENSSL_PSTRING_value(db->data,i));
+ }
+ sk_OPENSSL_PSTRING_free(db->data);
+ }
+ OPENSSL_free(db);
+ }
projects / cassiopeia.git / blobdiff