| /* 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 <openssl/opensslconf.h> |
| #if !defined(OPENSSL_SYS_STARBOARD) |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #endif // !defined(OPENSSL_SYS_STARBOARD) |
| #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 = OPENSSL_port_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 :-( */ |
| OPENSSL_port_printferr( |
| "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 :-( */ |
| OPENSSL_port_printferr("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) |
| OPENSSL_port_printferr("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 += OPENSSL_port_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); |
| } |
