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    1: /***************************************************************************
    2:  *                                  _   _ ____  _
    3:  *  Project                     ___| | | |  _ \| |
    4:  *                             / __| | | | |_) | |
    5:  *                            | (__| |_| |  _ <| |___
    6:  *                             \___|\___/|_| \_\_____|
    7:  *
    8:  * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
    9:  *
   10:  * This software is licensed as described in the file COPYING, which
   11:  * you should have received as part of this distribution. The terms
   12:  * are also available at https://curl.haxx.se/docs/copyright.html.
   13:  *
   14:  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
   15:  * copies of the Software, and permit persons to whom the Software is
   16:  * furnished to do so, under the terms of the COPYING file.
   17:  *
   18:  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
   19:  * KIND, either express or implied.
   20:  *
   21:  ***************************************************************************/
   22: 
   23: #include "curl_setup.h"
   24: 
   25: #include "curl_get_line.h"
   26: #include "curl_memory.h"
   27: /* The last #include file should be: */
   28: #include "memdebug.h"
   29: 
   30: /*
   31:  * get_line() makes sure to only return complete whole lines that fit in 'len'
   32:  * bytes and end with a newline.
   33:  */
   34: char *Curl_get_line(char *buf, int len, FILE *input)
   35: {
   36:   bool partial = FALSE;
   37:   while(1) {
   38:     char *b = fgets(buf, len, input);
   39:     if(b) {
   40:       size_t rlen = strlen(b);
   41:       if(rlen && (b[rlen-1] == '\n')) {
   42:         if(partial) {
   43:           partial = FALSE;
   44:           continue;
   45:         }
   46:         return b;
   47:       }
   48:       /* read a partial, discard the next piece that ends with newline */
   49:       partial = TRUE;
   50:     }
   51:     else
   52:       break;
   53:   }
   54:   return NULL;
   55: }