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86ca72a4f0
PR-URL: https://github.com/nodejs/node/pull/51291 Reviewed-By: Stephen Belanger <admin@stephenbelanger.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
/*
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* nghttp3
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*
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* Copyright (c) 2022 nghttp3 contributors
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* Copyright (c) 2022 ngtcp2 contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "nghttp3_unreachable.h"
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#include <stdio.h>
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#include <errno.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif /* HAVE_UNISTD_H */
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#include <stdlib.h>
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#ifdef WIN32
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# include <io.h>
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#endif /* WIN32 */
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void nghttp3_unreachable_fail(const char *file, int line, const char *func) {
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char *buf;
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size_t buflen;
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int rv;
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#define NGHTTP3_UNREACHABLE_TEMPLATE "%s:%d %s: Unreachable.\n"
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rv = snprintf(NULL, 0, NGHTTP3_UNREACHABLE_TEMPLATE, file, line, func);
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if (rv < 0) {
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abort();
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}
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/* here we explicitly use system malloc */
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buflen = (size_t)rv + 1;
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buf = malloc(buflen);
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if (buf == NULL) {
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abort();
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}
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rv = snprintf(buf, buflen, NGHTTP3_UNREACHABLE_TEMPLATE, file, line, func);
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if (rv < 0) {
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abort();
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}
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#ifndef WIN32
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while (write(STDERR_FILENO, buf, (size_t)rv) == -1 && errno == EINTR)
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;
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#else /* WIN32 */
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_write(_fileno(stderr), buf, (unsigned int)rv);
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#endif /* WIN32 */
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free(buf);
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abort();
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}
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