DN/External/curl-8.17.0/lib/curl_get_line.c

75 lines
2.3 KiB
C

/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_COOKIES) || !defined(CURL_DISABLE_ALTSVC) || \
!defined(CURL_DISABLE_HSTS) || !defined(CURL_DISABLE_NETRC)
#include "curl_get_line.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
#define appendnl(b) \
curlx_dyn_addn(buf, "\n", 1)
/*
* Curl_get_line() returns only complete whole lines that end with newline.
* When 'eof' is set TRUE, the last line has been read.
*/
CURLcode Curl_get_line(struct dynbuf *buf, FILE *input, bool *eof)
{
CURLcode result;
char buffer[128];
curlx_dyn_reset(buf);
while(1) {
size_t rlen;
char *b = fgets(buffer, sizeof(buffer), input);
*eof = feof(input);
rlen = b ? strlen(b) : 0;
if(rlen) {
result = curlx_dyn_addn(buf, b, rlen);
if(result)
/* too long line or out of memory */
return result;
}
/* now check the full line */
rlen = curlx_dyn_len(buf);
b = curlx_dyn_ptr(buf);
if(rlen && (b[rlen-1] == '\n'))
/* LF at end of the line */
return CURLE_OK; /* all good */
if(*eof)
/* append a newline */
return appendnl(buf);
/* otherwise get next line to append */
}
/* UNREACHABLE */
}
#endif /* if not disabled */