src/xpm/misc.c

   1 /*
   2  * Copyright (C) 1989-95 GROUPE BULL
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a copy
   5  * of this software and associated documentation files (the "Software"), to
   6  * deal in the Software without restriction, including without limitation the
   7  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
   8  * sell copies of the Software, and to permit persons to whom the Software is
   9  * furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  17  * GROUPE BULL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  18  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  19  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20  *
  21  * Except as contained in this notice, the name of GROUPE BULL shall not be
  22  * used in advertising or otherwise to promote the sale, use or other dealings
  23  * in this Software without prior written authorization from GROUPE BULL.
  24  */
  25
  26 /*****************************************************************************\
  27 * misc.c:                                                                     *
  28 *                                                                             *
  29 *  XPM library                                                                *
  30 *  Miscellaneous utilities                                                    *
  31 *                                                                             *
  32 *  Developed by Arnaud Le Hors                                                *
  33 \*****************************************************************************/
  34
  35 #include "XpmI.h"
  36
  37 #ifdef NEED_STRDUP
  38 /*
  39  * in case strdup is not provided by the system here is one
  40  * which does the trick
  41  */
  42 char *
  43 xpmstrdup(s1)
  44     char *s1;
  45 {
  46     char *s2;
  47     int l = strlen(s1) + 1;
  48
  49     if (s2 = (char *) XpmMalloc(l))
  50         strcpy(s2, s1);
  51     return s2;
  52 }
  53
  54 #endif
  55
  56 unsigned int
  57 xpmatoui(p, l, ui_return)
  58     register char *p;
  59     unsigned int l;
  60     unsigned int *ui_return;
  61 {
  62     register unsigned int n, i;
  63
  64     n = 0;
  65     for (i = 0; i < l; i++)
  66         if (*p >= '0' && *p <= '9')
  67             n = n * 10 + *p++ - '0';
  68         else
  69             break;
  70
  71     if (i != 0 && i == l) {
  72         *ui_return = n;
  73         return 1;
  74     } else
  75         return 0;
  76 }
  77
  78 /*
  79  * Function returning a character string related to an error code.
  80  */
  81 char *
  82 XpmGetErrorString(errcode)
  83     int errcode;
  84 {
  85     switch (errcode) {
  86     case XpmColorError:
  87         return ("XpmColorError");
  88     case XpmSuccess:
  89         return ("XpmSuccess");
  90     case XpmOpenFailed:
  91         return ("XpmOpenFailed");
  92     case XpmFileInvalid:
  93         return ("XpmFileInvalid");
  94     case XpmNoMemory:
  95         return ("XpmNoMemory");
  96     case XpmColorFailed:
  97         return ("XpmColorFailed");
  98     default:
  99         return ("Invalid XpmError");
 100     }
 101 }
 102
 103 /*
 104  * The following function provides a way to figure out if the linked library is
 105  * newer or older than the one with which a program has been first compiled.
 106  */
 107 int
 108 XpmLibraryVersion()
 109 {
 110     return XpmIncludeVersion;
 111 }
 112
 113
 114 /* The following should help people wanting to use their own functions */
 115 #ifdef XpmFree
 116 #undef XpmFree
 117 #endif
 118
 119 void
 120 XpmFree(ptr)
 121     void *ptr;
 122 {
 123     free(ptr);
 124 }