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Annotation of embedaddon/coova-chilli/src/util.c, revision 1.1.1.1

1.1       misho       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: getline.c,v 1.3 2004/05/18 22:45:18 summerisle 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