/*
* This file is part of GNUnet
- * Copyright (C) 2012 Christian Grothoff (and other contributing authors)
+ * Copyright (C) 2012-2017 GNUnet e.V.
*
- * GNUnet is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published
- * by the Free Software Foundation; either version 3, or (at your
- * option) any later version.
+ * GNUnet is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation, either version 3 of the License,
+ * or (at your option) any later version.
*
* GNUnet is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
+ * Affero General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with GNUnet; see the file COPYING. If not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+ SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
* @file src/regex/regex_test_lib.c
* Struct to hold the tree formed by prefix-combining the regexes.
*/
struct RegexCombineCtx {
-
- /**
- * Next node with same prefix but different token.
- */
- struct RegexCombineCtx *next;
-
/**
- * Prev node with same prefix but different token.
+ * Child nodes with same prefix and token.
*/
- struct RegexCombineCtx *prev;
+ struct RegexCombineCtx **children;
/**
- * First child node with same prefix and token.
+ * Alphabet size (how many @a children there are)
*/
- struct RegexCombineCtx *head;
-
- /**
- * Last child node.
- */
- struct RegexCombineCtx *tail;
+ unsigned int size;
/**
* Token.
char *s;
};
-/*
+
+/**
+ * Char 2 int
+ *
+ * Convert a character into its int value depending on the base used
+ *
+ * @param c Char
+ * @param size base (2, 8 or 16(hex))
+ *
+ * @return Int in range [0, (base-1)]
+ */
+static int
+c2i(char c, int size)
+{
+ switch (size)
+ {
+ case 2:
+ case 8:
+ return c - '0';
+ break;
+
+ case 16:
+ if (c >= '0' && c <= '9')
+ return c - '0';
+ else if (c >= 'A' && c <= 'F')
+ return c - 'A' + 10;
+ else if (c >= 'a' && c <= 'f')
+ return c - 'a' + 10;
+ else
+ {
+ GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
+ "Cannot convert char %c in base %u\n",
+ c, size);
+ GNUNET_assert(0);
+ }
+ break;
+
+ default:
+ GNUNET_assert(0);
+ }
+}
+
+
+/**
+ * Printf spaces to indent the regex tree
+ *
+ * @param n Indentation level
+ */
static void
-space (int n)
+space(int n)
{
- int i;
- for (i = 0; i < n; i++)
- printf (" ");
+ for (int i = 0; i < n; i++)
+ fprintf(stderr, "| ");
}
+
+/**
+ * Printf the combined regex ctx.
+ *
+ * @param ctx The ctx to printf
+ * @param level Indentation level to start with
+ */
static void
-debugctx (struct RegexCombineCtx *ctx, int level)
+debugctx(struct RegexCombineCtx *ctx, int level)
{
- struct RegexCombineCtx *p;
- space (level);
+#if DEBUG_REGEX
if (NULL != ctx->s)
- printf ("'%s'\n", ctx->s);
+ {
+ space(level - 1);
+ fprintf(stderr, "%u:'%s'\n", c2i(ctx->s[0], ctx->size), ctx->s);
+ }
else
- printf ("NULL\n");
- for (p = ctx->head; NULL != p; p = p->next)
- {
- debugctx (p, level + 1);
- }
+ fprintf(stderr, "ROOT (base %u)\n", ctx->size);
+ for (unsigned int i = 0; i < ctx->size; i++)
+ {
+ if (NULL != ctx->children[i])
+ {
+ space(level);
+ debugctx(ctx->children[i], level + 1);
+ }
+ }
+ fflush(stderr);
+#endif
+}
+
+
+/**
+ * Add a single regex to a context, combining with exisiting regex by-prefix.
+ *
+ * @param ctx Context with 0 or more regexes.
+ * @param regex Regex to add.
+ */
+static void
+regex_add(struct RegexCombineCtx *ctx,
+ const char *regex);
+
+
+/**
+ * Create and initialize a new RegexCombineCtx.
+ *
+ * @param alphabet_size Size of the alphabet (and the Trie array)
+ */
+static struct RegexCombineCtx *
+new_regex_ctx(unsigned int alphabet_size)
+{
+ struct RegexCombineCtx *ctx;
+ size_t array_size;
+
+ array_size = sizeof(struct RegexCombineCtx *) * alphabet_size;
+ ctx = GNUNET_new(struct RegexCombineCtx);
+ ctx->children = GNUNET_malloc(array_size);
+ ctx->size = alphabet_size;
+
+ return ctx;
}
-*/
+
+
+static void
+move_children(struct RegexCombineCtx *dst,
+ const struct RegexCombineCtx *src)
+{
+ size_t array_size;
+
+ array_size = sizeof(struct RegexCombineCtx *) * src->size;
+ GNUNET_memcpy(dst->children,
+ src->children,
+ array_size);
+ for (unsigned int i = 0; i < src->size; i++)
+ {
+ src->children[i] = NULL;
+ }
+}
+
/**
* Extract a string from all prefix-combined regexes.
* @return Regex that matches any of the added regexes.
*/
static char *
-regex_combine (struct RegexCombineCtx *ctx)
+regex_combine(struct RegexCombineCtx *ctx)
{
struct RegexCombineCtx *p;
+ unsigned int i;
size_t len;
char *regex;
char *tmp;
char *s;
int opt;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "new combine %s\n", ctx->s);
- regex = GNUNET_strdup ("");
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "new combine %s\n", ctx->s);
+ regex = GNUNET_strdup("");
opt = GNUNET_NO;
- for (p = ctx->head; NULL != p; p = p->next)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "adding '%s' to innner %s\n", p->s, ctx->s);
- s = regex_combine (p);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " total '%s'\n", s);
- if (strlen(s) == 0)
- {
- opt = GNUNET_YES;
- }
- else
+ for (i = 0; i < ctx->size; i++)
{
- GNUNET_asprintf (&tmp, "%s%s|", regex, s);
- GNUNET_free_non_null (regex);
- regex = tmp;
+ p = ctx->children[i];
+ if (NULL == p)
+ continue;
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "adding '%s' to innner %s\n",
+ p->s, ctx->s);
+ s = regex_combine(p);
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, " total '%s'\n", s);
+ if (strlen(s) == 0)
+ {
+ opt = GNUNET_YES;
+ }
+ else
+ {
+ GNUNET_asprintf(&tmp, "%s%s|", regex, s);
+ GNUNET_free_non_null(regex);
+ regex = tmp;
+ }
+ GNUNET_free_non_null(s);
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, " so far '%s' for inner %s\n", regex, ctx->s);
}
- GNUNET_free_non_null (s);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " so far '%s' for inner %s\n", regex, ctx->s);
- }
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "opt: %d, innner: '%s'\n", opt, regex);
- len = strlen (regex);
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "opt: %d, innner: '%s'\n", opt, regex);
+ len = strlen(regex);
if (0 == len)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "empty, returning ''\n");
- GNUNET_free (regex);
- return NULL == ctx->s ? NULL : GNUNET_strdup (ctx->s);
- }
+ {
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "empty, returning ''\n");
+ GNUNET_free(regex);
+ return NULL == ctx->s ? NULL : GNUNET_strdup(ctx->s);
+ }
if ('|' == regex[len - 1])
regex[len - 1] = '\0';
if (NULL != ctx->s)
- {
- if (opt)
- GNUNET_asprintf (&s, "%s(%s)?", ctx->s, regex);
- else
- GNUNET_asprintf (&s, "%s(%s)", ctx->s, regex);
- GNUNET_free (regex);
- regex = s;
- }
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "partial: %s\n", regex);
+ {
+ if (opt)
+ GNUNET_asprintf(&s, "%s(%s)?", ctx->s, regex);
+ else
+ GNUNET_asprintf(&s, "%s(%s)", ctx->s, regex);
+ GNUNET_free(regex);
+ regex = s;
+ }
+
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "partial: %s\n", regex);
return regex;
}
* @return Number of characters of matching prefix.
*/
static unsigned int
-get_prefix_length (const char *s1, const char *s2)
+get_prefix_length(const char *s1, const char *s2)
{
unsigned int l1;
unsigned int l2;
unsigned int limit;
unsigned int i;
- l1 = strlen (s1);
- l2 = strlen (s2);
+ l1 = strlen(s1);
+ l2 = strlen(s2);
limit = l1 > l2 ? l2 : l1;
- for (i = 1; i <= limit; i++)
- {
- if (0 != strncmp (s1, s2, i))
- return i - 1;
- }
+ for (i = 0; i < limit; i++)
+ {
+ if (s1[i] != s2[i])
+ return i;
+ }
return limit;
}
* @return Child with the longest prefix, NULL if no child matches.
*/
static struct RegexCombineCtx *
-get_longest_prefix (struct RegexCombineCtx *ctx, const char *regex)
+get_longest_prefix(struct RegexCombineCtx *ctx, const char *regex)
{
struct RegexCombineCtx *p;
struct RegexCombineCtx *best;
+ unsigned int i;
unsigned int l;
unsigned int best_l;
best_l = 0;
best = NULL;
- for (p = ctx->head; NULL != p; p = p->next)
- {
- l = get_prefix_length (p->s, regex);
- if (l > best_l)
+
+ for (i = 0; i < ctx->size; i++)
{
- GNUNET_break (0 == best_l);
- best = p;
- best_l = l;
+ p = ctx->children[i];
+ if (NULL == p)
+ continue;
+
+ l = get_prefix_length(p->s, regex);
+ if (l > best_l)
+ {
+ GNUNET_break(0 == best_l);
+ best = p;
+ best_l = l;
+ }
}
- }
return best;
}
+static void
+regex_add_multiple(struct RegexCombineCtx *ctx,
+ const char *regex,
+ struct RegexCombineCtx **children)
+{
+ char tmp[2];
+ long unsigned int i;
+ size_t l;
+ struct RegexCombineCtx *newctx;
+ unsigned int count;
+
+ if ('(' != regex[0])
+ {
+ GNUNET_assert(0);
+ }
+
+ /* Does the regex cover *all* possible children? Then don't add any,
+ * as it will be covered by the post-regex "(a-z)*"
+ */
+ l = strlen(regex);
+ count = 0;
+ for (i = 1UL; i < l; i++)
+ {
+ if (regex[i] != '|' && regex[i] != ')')
+ {
+ count++;
+ }
+ }
+ if (count == ctx->size)
+ {
+ return;
+ }
+
+ /* Add every component as a child node */
+ tmp[1] = '\0';
+ for (i = 1UL; i < l; i++)
+ {
+ if (regex[i] != '|' && regex[i] != ')')
+ {
+ tmp[0] = regex[i];
+ newctx = new_regex_ctx(ctx->size);
+ newctx->s = GNUNET_strdup(tmp);
+ if (children != NULL)
+ GNUNET_memcpy(newctx->children,
+ children,
+ sizeof(*children) * ctx->size);
+ ctx->children[c2i(tmp[0], ctx->size)] = newctx;
+ }
+ }
+}
+
+/**
+ * Add a single regex to a context, splitting the exisiting state.
+ *
+ * We only had a partial match, split existing state, truncate the current node
+ * so it only contains the prefix, add suffix(es) as children.
+ *
+ * @param ctx Context to split.
+ * @param len Lenght of ctx->s
+ * @param prefix_l Lenght of common prefix of the new regex and @a ctx->s
+ */
+static void
+regex_split(struct RegexCombineCtx *ctx,
+ unsigned int len,
+ unsigned int prefix_l)
+{
+ struct RegexCombineCtx *newctx;
+ unsigned int idx;
+ char *suffix;
+
+ suffix = GNUNET_malloc(len - prefix_l + 1);
+ /*
+ * We can use GNUNET_strlcpy because ctx->s is null-terminated
+ */
+ GNUNET_strlcpy(suffix, &ctx->s[prefix_l], len - prefix_l + 1);
+
+ /* Suffix saved, truncate current node so it only contains the prefix,
+ * copy any children nodes to put as grandchildren and initialize new empty
+ * children array.
+ */
+ ctx->s[prefix_l] = '\0';
+
+ /* If the suffix is an OR expression, add multiple children */
+ if ('(' == suffix[0])
+ {
+ struct RegexCombineCtx **tmp;
+
+ tmp = ctx->children;
+ ctx->children = GNUNET_malloc(sizeof(*tmp) * ctx->size);
+ regex_add_multiple(ctx, suffix, tmp);
+ GNUNET_free(suffix);
+ GNUNET_free(tmp);
+ return;
+ }
+
+ /* The suffix is a normal string, add as one node */
+ newctx = new_regex_ctx(ctx->size);
+ newctx->s = suffix;
+ move_children(newctx, ctx);
+ idx = c2i(suffix[0], ctx->size);
+ ctx->children[idx] = newctx;
+}
+
/**
* Add a single regex to a context, combining with exisiting regex by-prefix.
* @param regex Regex to add.
*/
static void
-regex_add (struct RegexCombineCtx *ctx, const char *regex)
+regex_add(struct RegexCombineCtx *ctx, const char *regex)
{
struct RegexCombineCtx *p;
struct RegexCombineCtx *newctx;
+ long unsigned int l;
unsigned int prefix_l;
const char *rest_r;
const char *rest_s;
size_t len;
+ int idx;
- if (0 == strlen (regex))
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "regex_add '%s' into '%s'\n",
+ regex, ctx->s);
+ l = strlen(regex);
+ if (0UL == l)
return;
- p = get_longest_prefix (ctx, regex);
- if (NULL != p) /* There is some prefix match, reduce regex and try again */
- {
- prefix_l = get_prefix_length (p->s, regex);
- rest_s = &p->s[prefix_l];
- rest_r = ®ex[prefix_l];
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "chosen '%s' [%u]\n", p->s, prefix_l);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "prefix r '%.*s'\n", prefix_l, p->s);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "rest r '%s'\n", rest_r);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "rest s '%s'\n", rest_s);
- len = strlen (p->s);
- if (prefix_l < len) /* only partial match, split existing state */
+ /* If the regex is in the form of (a|b|c), add every character separately */
+ if ('(' == regex[0])
{
- newctx = GNUNET_new (struct RegexCombineCtx);
- newctx->head = p->head;
- newctx->tail = p->tail;
- newctx->s = GNUNET_malloc(len - prefix_l + 1);
- strncpy (newctx->s, rest_s, len - prefix_l + 1);
-
- p->head = newctx;
- p->tail = newctx;
- p->s[prefix_l] = '\0';
+ regex_add_multiple(ctx, regex, NULL);
+ return;
}
- regex_add (p, rest_r);
- return;
- }
+
+ p = get_longest_prefix(ctx, regex);
+ if (NULL != p)
+ {
+ /* There is some prefix match, reduce regex and try again */
+ prefix_l = get_prefix_length(p->s, regex);
+ rest_s = &p->s[prefix_l];
+ rest_r = ®ex[prefix_l];
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "chosen '%s' [%u]\n", p->s, prefix_l);
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "prefix r '%.*s'\n", prefix_l, p->s);
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "rest r '%s'\n", rest_r);
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "rest s '%s'\n", rest_s);
+ len = strlen(p->s);
+ if (prefix_l < len)
+ {
+ regex_split(p, len, prefix_l);
+ }
+ regex_add(p, rest_r);
+ return;
+ }
+
/* There is no prefix match, add new */
- if (NULL == ctx->head && NULL != ctx->s)
- {
- /* this was the end before, add empty string */
- newctx = GNUNET_new (struct RegexCombineCtx);
- newctx->s = GNUNET_strdup ("");
- GNUNET_CONTAINER_DLL_insert (ctx->head, ctx->tail, newctx);
- }
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " no match\n");
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " new state %s\n", regex);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " under %s\n", ctx->s);
- newctx = GNUNET_new (struct RegexCombineCtx);
- newctx->s = GNUNET_strdup (regex);
- GNUNET_CONTAINER_DLL_insert (ctx->head, ctx->tail, newctx);
+ idx = c2i(regex[0], ctx->size);
+ if (NULL == ctx->children[idx] && NULL != ctx->s)
+ {
+ /* this was the end before, add empty string */
+ newctx = new_regex_ctx(ctx->size);
+ newctx->s = GNUNET_strdup("");
+ ctx->children[idx] = newctx;
+ }
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, " no match\n");
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, " new state %s\n", regex);
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, " under %s\n", ctx->s);
+ newctx = new_regex_ctx(ctx->size);
+ newctx->s = GNUNET_strdup(regex);
+ ctx->children[idx] = newctx;
}
* @param ctx Context to free.
*/
static void
-regex_ctx_destroy (struct RegexCombineCtx *ctx)
+regex_ctx_destroy(struct RegexCombineCtx *ctx)
{
- struct RegexCombineCtx *p;
- struct RegexCombineCtx *next;
-
- for (p = ctx->head; NULL != p; p = next)
- {
- next = p->next;
- regex_ctx_destroy (p);
- }
- GNUNET_free_non_null (ctx->s); /* 's' on root node is null */
- GNUNET_free (ctx);
+ unsigned int i;
+
+ if (NULL == ctx)
+ return;
+
+ for (i = 0; i < ctx->size; i++)
+ {
+ regex_ctx_destroy(ctx->children[i]);
+ }
+ GNUNET_free_non_null(ctx->s); /* 's' on root node is null */
+ GNUNET_free(ctx->children);
+ GNUNET_free(ctx);
}
/**
- * Return a prefix-combine regex that matches the same strings as
+ * Combine an array of regexes into a single prefix-shared regex.
+ * Returns a prefix-combine regex that matches the same strings as
* any of the original regexes.
*
* WARNING: only useful for reading specific regexes for specific applications,
* namely the gnunet-regex-profiler / gnunet-regex-daemon.
* This function DOES NOT support arbitrary regex combining.
+ *
+ * @param regexes A NULL-terminated array of regexes.
+ * @param alphabet_size Size of the alphabet the regex uses.
+ *
+ * @return A string with a single regex that matches any of the original regexes
*/
char *
-REGEX_TEST_combine (char * const regexes[])
+REGEX_TEST_combine(char * const regexes[], unsigned int alphabet_size)
{
unsigned int i;
char *combined;
const char *current;
struct RegexCombineCtx *ctx;
- ctx = GNUNET_new (struct RegexCombineCtx);
+ ctx = new_regex_ctx(alphabet_size);
for (i = 0; regexes[i]; i++)
- {
- current = regexes[i];
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Regex %u: %s\n", i, current);
- regex_add (ctx, current);
- /* debugctx (ctx, 0); */
- }
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "\nCombining...\n");
- /* debugctx (ctx, 0); */
+ {
+ current = regexes[i];
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Regex %u: %s\n", i, current);
+ regex_add(ctx, current);
+ debugctx(ctx, 0);
+ }
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "\nCombining...\n");
+ debugctx(ctx, 0);
- combined = regex_combine (ctx);
+ combined = regex_combine(ctx);
- regex_ctx_destroy (ctx);
+ regex_ctx_destroy(ctx);
return combined;
}
* @return A newly allocated, NULL terminated array of regexes.
*/
char **
-REGEX_TEST_read_from_file (const char *filename)
+REGEX_TEST_read_from_file(const char *filename)
{
struct GNUNET_DISK_FileHandle *f;
unsigned int nr;
char *regex;
char **regexes;
- f = GNUNET_DISK_file_open (filename,
- GNUNET_DISK_OPEN_READ,
- GNUNET_DISK_PERM_NONE);
+ f = GNUNET_DISK_file_open(filename,
+ GNUNET_DISK_OPEN_READ,
+ GNUNET_DISK_PERM_NONE);
if (NULL == f)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Can't open file %s for reading\n", filename);
- return NULL;
- }
- if (GNUNET_OK != GNUNET_DISK_file_handle_size (f, &size))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Can't get size of file %s\n", filename);
- GNUNET_DISK_file_close (f);
- return NULL;
- }
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "using file %s, size %llu\n",
- filename, (unsigned long long) size);
-
- buffer = GNUNET_malloc (size + 1);
- GNUNET_DISK_file_read (f, buffer, size);
- GNUNET_DISK_file_close (f);
- regexes = GNUNET_malloc (sizeof (char *));
+ {
+ GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
+ "Can't open file %s for reading\n", filename);
+ return NULL;
+ }
+ if (GNUNET_OK != GNUNET_DISK_file_handle_size(f, &size))
+ {
+ GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
+ "Can't get size of file %s\n", filename);
+ GNUNET_DISK_file_close(f);
+ return NULL;
+ }
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "using file %s, size %llu\n",
+ filename, (unsigned long long)size);
+
+ buffer = GNUNET_malloc(size + 1);
+ GNUNET_DISK_file_read(f, buffer, size);
+ GNUNET_DISK_file_close(f);
+ regexes = GNUNET_malloc(sizeof(char *));
nr = 1;
offset = 0;
regex = NULL;
do
- {
- if (NULL == regex)
- regex = GNUNET_malloc (size + 1);
- len = (size_t) sscanf (&buffer[offset], "%s", regex);
- if (0 == len)
- break;
- len = strlen (regex);
- offset += len + 1;
- if (len < 1)
- continue;
- regex[len] = '\0';
- regex = GNUNET_realloc (regex, len + 1);
- GNUNET_array_grow (regexes, nr, nr + 1);
- GNUNET_assert (NULL == regexes[nr - 2]);
- regexes[nr - 2] = regex;
- regexes[nr - 1] = NULL;
- regex = NULL;
- } while (offset < size);
- GNUNET_free_non_null (regex);
- GNUNET_free (buffer);
+ {
+ if (NULL == regex)
+ regex = GNUNET_malloc(size + 1);
+ len = (size_t)sscanf(&buffer[offset], "%s", regex);
+ if (0 == len)
+ break;
+ len = strlen(regex);
+ offset += len + 1;
+ if (len < 1)
+ continue;
+ regex[len] = '\0';
+ regex = GNUNET_realloc(regex, len + 1);
+ GNUNET_array_grow(regexes, nr, nr + 1);
+ GNUNET_assert(NULL == regexes[nr - 2]);
+ regexes[nr - 2] = regex;
+ regexes[nr - 1] = NULL;
+ regex = NULL;
+ }
+ while (offset < size);
+ GNUNET_free_non_null(regex);
+ GNUNET_free(buffer);
return regexes;
}
* @param regexes NULL-terminated array of regexes.
*/
void
-REGEX_TEST_free_from_file (char **regexes)
+REGEX_TEST_free_from_file(char **regexes)
{
unsigned int i;
for (i = 0; regexes[i]; i++)
- GNUNET_free (regexes[i]);
- GNUNET_free (regexes);
+ GNUNET_free(regexes[i]);
+ GNUNET_free(regexes);
}
/* end of regex_test_lib.c */
projects / oweals / gnunet.git / blobdiff