src/misc.c

   1 /* vim:tw=78:ts=8:sw=4:set ft=c:  */
   2 /*
   3     Copyright (C) 2002-2006 Ben Kibbey <bjk@luxsci.net>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18 */
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <err.h>
  22 #include <string.h>
  23 #include <ctype.h>
  24 #include <string.h>
  25 #include <errno.h>
  26
  27 #ifdef HAVE_CONFIG_H
  28 #include <config.h>
  29 #endif
  30
  31 #ifdef HAVE_LIMITS_H
  32 #include <limits.h>
  33 #endif
  34
  35 #ifdef WITH_DMALLOC
  36 #include <dmalloc.h>
  37 #endif
  38
  39 void *Malloc(size_t size)
  40 {
  41     void *ptr;
  42
  43     if ((ptr = malloc(size)) == NULL)
  44         err(EXIT_FAILURE, "malloc()");
  45
  46     return ptr;
  47 }
  48
  49 void *Realloc(void *ptr, size_t size)
  50 {
  51     void *ptr2;
  52
  53     if ((ptr2 = realloc(ptr, size)) == NULL)
  54         err(EXIT_FAILURE, "realloc()");
  55
  56     return ptr2;
  57 }
  58
  59 void *Calloc(size_t n, size_t size)
  60 {
  61     void *p;
  62
  63     if ((p = calloc(n, size)) == NULL)
  64         err(EXIT_FAILURE, "calloc()");
  65
  66     return p;
  67 }
  68
  69 char *trim(char *str)
  70 {
  71     int i = 0;
  72
  73     if (!str)
  74         return NULL;
  75
  76     while (isspace(*str))
  77         str++;
  78
  79     for (i = strlen(str) - 1; isspace(str[i]); i--)
  80         str[i] = 0;
  81
  82     return str;
  83 }
  84
  85 char *itoa(long n)
  86 {
  87     static char buf[16];
  88
  89     snprintf(buf, sizeof(buf), "%li", n);
  90     return buf;
  91 }
  92
  93 int integer_len(long n)
  94 {
  95     return strlen(itoa(n));
  96 }
  97
  98 int isinteger(const char *str)
  99 {
 100     int i;
 101     int len = strlen(str);
 102
 103     for (i = 0; i < len; i++) {
 104         if (!isdigit(str[i]))
 105             return 0;
 106     }
 107
 108     return 1;
 109 }
 110
 111 char *tilde_expand(char *str)
 112 {
 113     static char buf[FILENAME_MAX];
 114
 115     if (*str == '~') {
 116         strncpy(buf, getenv("HOME"), sizeof(buf));
 117
 118         if (++str)
 119             strncat(buf, str, sizeof(buf));
 120     }
 121     else
 122         return str;
 123
 124     return buf;
 125 }