wmpower-0.4.3/src/power_management/lib_utils/lib_utils.c

   1 /***************************************************************************
   2                           lib_utils.c  -  description
   3                              -------------------
   4     begin                : Sun Jan 20 15:34:25 CET 2002
   5     copyright            : (C) 2002-2004 by Noberasco Michele
   6     e-mail               : noberasco.gnu@disi.unige.it
   7  ***************************************************************************/
   8
   9 /***************************************************************************
  10  *                                                                         *
  11  *   This program is free software; you can redistribute it and/or modify  *
  12  *   it under the terms of the GNU General Public License as published by  *
  13  *   the Free Software Foundation; either version 2 of the License, or     *
  14  *   (at your option) any later version.                                   *
  15  *                                                                         *
  16  *   This program is distributed in the hope that it will be useful,       *
  17  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  18  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  19  *   GNU General Public License for more details.                          *
  20  *                                                                         *
  21  *   You should have received a copy of the GNU General Public License     *
  22  *   along with this program; if not, write to the                         *
  23  *   Free Software Foundation, Inc.,                                       *
  24  *   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.              *
  25  *                                                                         *
  26  ***************************************************************************/
  27
  28 #define MAX 255
  29
  30 #include <dirent.h>
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34 #include <stdarg.h>
  35 #include <time.h>
  36 #include <sys/types.h>
  37 #include <sys/stat.h>
  38 #include <fcntl.h>
  39 #include <unistd.h>
  40 #include <envz.h>
  41 #include "lib_utils.h"
  42
  43
  44 char *jump_next_line(char *ptr)
  45 {
  46         char *temp;
  47
  48         if (!ptr) return NULL;
  49
  50         for (temp=ptr; temp[0]!='\0'; temp++)
  51                 if (temp[0] == '\n') return (temp+1);
  52
  53         return NULL;
  54 }
  55
  56 /* append any number of strings to dst */
  57 char *StrApp (char **dst, ...)
  58 {
  59   int len = 1;
  60   char *pt, *temp;
  61   va_list va;
  62
  63   if (dst) if (*dst) len += strlen(*dst);
  64   va_start(va, dst);
  65   for (;;)
  66   {
  67     pt = va_arg(va, char *);
  68     if (!pt) break;
  69     len += strlen(pt);
  70   }
  71
  72   va_end (va);
  73
  74         temp = (char *) calloc((size_t)len, sizeof(char));
  75
  76   if (dst) if (*dst)
  77   {
  78     strcpy(temp, *dst);
  79     free(*dst);
  80   }
  81
  82   va_start(va, dst);
  83
  84   for (;;)
  85   {
  86     pt = va_arg(va, char *);
  87     if (!pt) break;
  88     strcat(temp, pt);
  89   }
  90   va_end (va);
  91
  92   if (dst) *dst = temp;
  93
  94   return temp;
  95 }