uspace/lib/pcut/src/os/stdc.c

   1 /*
   2  * Copyright (c) 2013 Vojtech Horky
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * - Redistributions of source code must retain the above copyright
  10  *   notice, this list of conditions and the following disclaimer.
  11  * - Redistributions in binary form must reproduce the above copyright
  12  *   notice, this list of conditions and the following disclaimer in the
  13  *   documentation and/or other materials provided with the distribution.
  14  * - The name of the author may not be used to endorse or promote products
  15  *   derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /** @file
  30  *
  31  * String operation functions for systems with a standard C library.
  32  */
  33
  34 #include <string.h>
  35 #include "../internal.h"
  36
  37 int pcut_str_equals(const char *a, const char *b) {
  38         return strcmp(a, b) == 0;
  39 }
  40
  41 int pcut_str_start_equals(const char *a, const char *b, int len) {
  42         return strncmp(a, b, len) == 0;
  43 }
  44
  45 int pcut_str_size(const char *s) {
  46         return strlen(s);
  47 }
  48
  49 int pcut_str_to_int(const char *s) {
  50         return atoi(s);
  51 }
  52
  53 char *pcut_str_find_char(const char *haystack, const char needle) {
  54         return strchr(haystack, needle);
  55 }
  56
  57 void pcut_str_error(int error, char *buffer, int size) {
  58         const char *str = strerror(error);
  59         if (str == NULL) {
  60                 str = "(strerror failure)";
  61         }
  62         strncpy(buffer, str, size - 1);
  63         /* Ensure correct termination. */
  64         buffer[size - 1] = 0;
  65 }