mirror of
https://github.com/curl/curl.git
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142ac257b3
Create the line in a dynbuf. Aborts the reading of the file on errors. Avoids having to always allocate maximum amount from the start. Avoids direct malloc. Closes #12846
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "curl_setup.h"
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#if !defined(CURL_DISABLE_COOKIES) || !defined(CURL_DISABLE_ALTSVC) || \
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!defined(CURL_DISABLE_HSTS) || !defined(CURL_DISABLE_NETRC)
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#include "curl_get_line.h"
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#include "curl_memory.h"
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/* The last #include file should be: */
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#include "memdebug.h"
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/*
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* Curl_get_line() makes sure to only return complete whole lines that end
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* newlines.
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*/
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int Curl_get_line(struct dynbuf *buf, FILE *input)
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{
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CURLcode result;
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char buffer[128];
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Curl_dyn_reset(buf);
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while(1) {
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char *b = fgets(buffer, sizeof(buffer), input);
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if(b) {
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size_t rlen = strlen(b);
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if(!rlen)
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break;
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result = Curl_dyn_addn(buf, b, rlen);
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if(result)
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/* too long line or out of memory */
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return 0; /* error */
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else if(b[rlen-1] == '\n')
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/* end of the line */
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return 1; /* all good */
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else if(feof(input)) {
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/* append a newline */
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result = Curl_dyn_addn(buf, "\n", 1);
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if(result)
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/* too long line or out of memory */
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return 0; /* error */
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return 1; /* all good */
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}
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}
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else
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break;
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}
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return 0;
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}
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#endif /* if not disabled */
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