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coova-chilli

    1: /* This file is free software; you can redistribute it and/or modify */
    2: /* it under the terms of the GNU General Public License as published by */
    3: /* the Free Software Foundation; either version 2, or (at your option) */
    4: /* any later version. */
    5: 
    6: /* This file is distributed in the hope that it will be useful, */
    7: /* but WITHOUT ANY WARRANTY; without even the implied warranty of */
    8: /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
    9: /* GNU General Public License for more details. */
   10: 
   11: /* You should have received a copy of the GNU General Public License */
   12: /* along with GNU Emacs; see the file COPYING.  If not, write to */
   13: /* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, */
   14: /* Boston, MA 02111-1307, USA. */
   15: 
   16: /* Copyright (C) 2004 Ian Zimmerman */
   17: 
   18: /* $Id: util.c,v 1.1.1.1 2012/02/21 22:48:25 misho Exp $ */
   19: 
   20: #include "../config.h"
   21: #ifndef HAVE_GETLINE
   22: #include <stdio.h>
   23: #include <sys/types.h>
   24: #include <stdlib.h>
   25: 
   26: 
   27: #define GETLINE_BUFSIZE 4096
   28: 
   29: ssize_t
   30: getline (char** lineptr, size_t* n, FILE* stream)
   31: {
   32:   char* lptr1;
   33:   size_t nn;
   34:   int c;
   35: 
   36:   if (*lineptr == NULL && n == NULL)
   37:     {
   38:       lptr1 = malloc (GETLINE_BUFSIZE);
   39:       if (lptr1 == NULL) return EOF;
   40:       nn = GETLINE_BUFSIZE;
   41:     }
   42:   else
   43:     {
   44:       lptr1 = *lineptr;
   45:       nn = *n;
   46:     }
   47:   c = fgetc (stream);
   48:   if (c == EOF) return EOF;
   49:   {
   50:     size_t offset;
   51: 
   52:     offset = 0;
   53:     while (c != EOF)
   54:       {
   55:         if (offset >= nn - 1)
   56:           {
   57:             char* lptr2;
   58:             lptr2 = realloc (lptr1, 2 * nn);
   59:             if (lptr2 == NULL) return EOF;
   60:             lptr1 = lptr2;
   61:             nn *= 2;
   62:           }
   63:         lptr1[offset++] = (char)c;
   64:         if (c == '\n') break;
   65:         c = fgetc (stream);
   66:       }
   67:     lptr1[offset] = '\0';
   68:     *lineptr = lptr1;
   69:     *n = nn;
   70:     return offset;
   71:   }  
   72: }
   73: #endif