"Fossies" - the Fresh Open Source Software Archive

Member "authforce-0.9.9/src/misc.c" (13 May 2007, 2432 Bytes) of package /linux/www/old/authforce-0.9.9.tar.gz:

    1 /* $Id: misc.c,v 1.3 2001/02/13 22:54:53 kapheine Exp $ */
    2 
    3 #include <config.h>
    4 #include <stdio.h>
    5 #include <stdlib.h>
    6 #include <malloc.h>
    7 #include <string.h>
    8 #include <ctype.h>
    9 #ifdef MEMWATCH
   10 #include "memwatch.h"
   11 #endif /* MEMWATCH */
   12 #include "extern.h"
   13 
   14 /* malloc wrapper with error checking */
   15 void *malloc_wrapper(size_t size) {
   16     void *ptr;
   17 
   18     ptr = malloc(size);
   19 
   20     if (!ptr) {
   21         fprintf(stderr, "malloc_wrapper: couldn't allocate memory\n");
   22         exit(EXIT_FAILURE);
   23     }
   24 
   25     return (ptr);
   26 }
   27 
   28 /* strdup wrapper with error checking */
   29 char *strdup_wrapper(const char *s) {
   30     char *ptr;
   31 
   32     ptr = strdup(s);
   33 
   34     if (!ptr) {
   35         fprintf(stderr, "strdup_wrapper: couldn't allocate memory\n");
   36         exit(EXIT_FAILURE);
   37     }
   38 
   39     return (ptr);
   40 }
   41 
   42 /*
   43  * seperates str using token, putting the first part in str and returning
   44  * the second part. (does a function like this already exist?)
   45  * why the hell wont it ever return null blah!
   46  */
   47 char *extract(char *str, char token) {
   48 
   49     while (*str != token) {
   50         if (*str == '\0')
   51             return(NULL);
   52         ++str;
   53     }
   54     *str = '\0';
   55     str++;
   56     return(str);
   57 }
   58 
   59 /* calculate new average, average being new entry, element being the new
   60  * number and num being the total elements in average
   61  */
   62 
   63 float stats(float average, float element, int num) {
   64     printf("avg: %f, el: %f, num: %i\n", average, element, num);
   65     return (((average*num)+element)/num+1);
   66 }
   67 
   68 /* code released as public domain by Bob Stout */
   69 char *strrev(char *str)
   70 {
   71       char *p1, *p2;
   72 
   73       if (! str || ! *str)
   74             return str;
   75       for (p1 = str, p2 = str + strlen(str) - 1; p2 > p1; ++p1, --p2)
   76       {
   77             *p1 ^= *p2;
   78             *p2 ^= *p1;
   79             *p1 ^= *p2;
   80       }
   81       return str;
   82 }
   83 
   84 /* +++Date last modified: 05-Jul-1997 */
   85 /*
   86 **  Originally published as part of the MicroFirm Function Library
   87 **
   88 **  Copyright 1986, S.E. Margison
   89 **  Copyright 1989, Robert B.Stout
   90 **
   91 **  The user is granted a free limited license to use this source file
   92 **  to create royalty-free programs, subject to the terms of the
   93 **  license restrictions specified in the LICENSE.MFL file.
   94 **
   95 **  remove all whitespace from a string
   96 */
   97 /* slightly modified */
   98 
   99 void remove_crud(char *str)
  100 {
  101       char *obuf, *nbuf;
  102 
  103       if (str)
  104       {
  105             for (obuf = str, nbuf = str; *obuf; ++obuf)
  106             {
  107                   if (*obuf != ' ' && *obuf != '\t')
  108                         *nbuf++ = *obuf;
  109 
  110             }
  111             *nbuf = 0;
  112       }
  113 }