quickjs-tart

quickjs-based runtime for wallet-core logic
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curl_get_line.c (2527B)

      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) 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.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  * SPDX-License-Identifier: curl
     22  *
     23  ***************************************************************************/
     24 
     25 #include "curl_setup.h"
     26 
     27 #if !defined(CURL_DISABLE_COOKIES) || !defined(CURL_DISABLE_ALTSVC) ||  \
     28   !defined(CURL_DISABLE_HSTS) || !defined(CURL_DISABLE_NETRC)
     29 
     30 #include "curl_get_line.h"
     31 #include "curl_memory.h"
     32 /* The last #include file should be: */
     33 #include "memdebug.h"
     34 
     35 static int appendnl(struct dynbuf *buf)
     36 {
     37   CURLcode result = curlx_dyn_addn(buf, "\n", 1);
     38   if(result)
     39     /* too long line or out of memory */
     40     return 0; /* error */
     41   return 1; /* all good */
     42 }
     43 
     44 /*
     45  * Curl_get_line() makes sure to only return complete whole lines that end
     46  * newlines.
     47  */
     48 int Curl_get_line(struct dynbuf *buf, FILE *input)
     49 {
     50   CURLcode result;
     51   char buffer[128];
     52   curlx_dyn_reset(buf);
     53   while(1) {
     54     char *b = fgets(buffer, sizeof(buffer), input);
     55     size_t rlen;
     56 
     57     if(b) {
     58       rlen = strlen(b);
     59 
     60       if(!rlen)
     61         break;
     62 
     63       result = curlx_dyn_addn(buf, b, rlen);
     64       if(result)
     65         /* too long line or out of memory */
     66         return 0; /* error */
     67 
     68       else if(b[rlen-1] == '\n')
     69         /* end of the line */
     70         return 1; /* all good */
     71 
     72       else if(feof(input))
     73         /* append a newline */
     74         return appendnl(buf);
     75     }
     76     else {
     77       rlen = curlx_dyn_len(buf);
     78       if(rlen) {
     79         b = curlx_dyn_ptr(buf);
     80 
     81         if(b[rlen-1] != '\n')
     82           /* append a newline */
     83           return appendnl(buf);
     84 
     85         return 1; /* all good */
     86       }
     87       else
     88         break;
     89     }
     90   }
     91   return 0;
     92 }
     93 
     94 #endif /* if not disabled */