quickjs-tart

quickjs-based runtime for wallet-core logic
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ares_strsplit.c (2658B)

      1 /* MIT License
      2  *
      3  * Copyright (c) 2018 John Schember
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining a copy
      6  * of this software and associated documentation files (the "Software"), to deal
      7  * in the Software without restriction, including without limitation the rights
      8  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
      9  * copies of the Software, and to permit persons to whom the Software is
     10  * furnished to do so, subject to the following conditions:
     11  *
     12  * The above copyright notice and this permission notice (including the next
     13  * paragraph) shall be included in all copies or substantial portions of the
     14  * Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     22  * SOFTWARE.
     23  *
     24  * SPDX-License-Identifier: MIT
     25  */
     26 #include "ares_private.h"
     27 
     28 void ares_strsplit_free(char **elms, size_t num_elm)
     29 {
     30   ares_free_array(elms, num_elm, ares_free);
     31 }
     32 
     33 char **ares_strsplit_duplicate(char **elms, size_t num_elm)
     34 {
     35   size_t i;
     36   char **out;
     37 
     38   if (elms == NULL || num_elm == 0) {
     39     return NULL; /* LCOV_EXCL_LINE: DefensiveCoding */
     40   }
     41 
     42   out = ares_malloc_zero(sizeof(*elms) * num_elm);
     43   if (out == NULL) {
     44     return NULL; /* LCOV_EXCL_LINE: OutOfMemory */
     45   }
     46 
     47   for (i = 0; i < num_elm; i++) {
     48     out[i] = ares_strdup(elms[i]);
     49     if (out[i] == NULL) {
     50       ares_strsplit_free(out, num_elm); /* LCOV_EXCL_LINE: OutOfMemory */
     51       return NULL;                      /* LCOV_EXCL_LINE: OutOfMemory */
     52     }
     53   }
     54 
     55   return out;
     56 }
     57 
     58 char **ares_strsplit(const char *in, const char *delms, size_t *num_elm)
     59 {
     60   ares_status_t status;
     61   ares_buf_t   *buf = NULL;
     62   char        **out = NULL;
     63 
     64   if (in == NULL || delms == NULL || num_elm == NULL) {
     65     return NULL; /* LCOV_EXCL_LINE: DefensiveCoding */
     66   }
     67 
     68   *num_elm = 0;
     69 
     70   buf = ares_buf_create_const((const unsigned char *)in, ares_strlen(in));
     71   if (buf == NULL) {
     72     return NULL;
     73   }
     74 
     75   status = ares_buf_split_str(
     76     buf, (const unsigned char *)delms, ares_strlen(delms),
     77     ARES_BUF_SPLIT_NO_DUPLICATES | ARES_BUF_SPLIT_CASE_INSENSITIVE, 0, &out,
     78     num_elm);
     79   if (status != ARES_SUCCESS) {
     80     goto done;
     81   }
     82 
     83 done:
     84   ares_buf_destroy(buf);
     85   if (status != ARES_SUCCESS) {
     86     out = NULL;
     87   }
     88 
     89   return out;
     90 }