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87 lines
2.4 KiB
C
87 lines
2.4 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) 1998 - 2022, 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 fit in
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* 'len' bytes and end with a newline.
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*/
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char *Curl_get_line(char *buf, int len, FILE *input)
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{
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bool partial = FALSE;
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while(1) {
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char *b = fgets(buf, len, 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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if(b[rlen-1] == '\n') {
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/* b is \n terminated */
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if(partial) {
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partial = FALSE;
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continue;
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}
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return b;
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}
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else if(feof(input)) {
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if(partial)
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/* Line is already too large to return, ignore rest */
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break;
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if(rlen + 1 < (size_t) len) {
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/* b is EOF terminated, insert missing \n */
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b[rlen] = '\n';
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b[rlen + 1] = '\0';
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return b;
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}
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else
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/* Maximum buffersize reached + EOF
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* This line is impossible to add a \n to so we'll ignore it
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*/
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break;
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}
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else
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/* Maximum buffersize reached */
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partial = TRUE;
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}
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else
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break;
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}
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return NULL;
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}
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#endif /* if not disabled */
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