diff options
Diffstat (limited to 'thirdparty/openssl/crypto/txt_db/txt_db.c')
| -rw-r--r-- | thirdparty/openssl/crypto/txt_db/txt_db.c | 381 |
1 files changed, 381 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/txt_db/txt_db.c b/thirdparty/openssl/crypto/txt_db/txt_db.c new file mode 100644 index 0000000000..f9b42ac6e5 --- /dev/null +++ b/thirdparty/openssl/crypto/txt_db/txt_db.c @@ -0,0 +1,381 @@ +/* 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); +} |