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46 lines
2.4 KiB
C
46 lines
2.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/str/str.h"
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#include "libc/str/tab.h"
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#include "net/http/http.h"
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/**
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* Converts HTTP method to word encoding.
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*
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* For example, `ParseHttpMethod("GET", -1)` will return `kHttpGet`.
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*
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* @param len if -1 implies strlen
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* @return word encoded method, or 0 if invalid
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*/
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uint64_t ParseHttpMethod(const char *str, size_t len) {
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int s = 0;
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uint64_t w = 0;
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if (len == -1)
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len = str ? strlen(str) : 0;
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for (size_t i = 0; i < len; ++i) {
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int c = kToUpper[str[i] & 255];
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if (!kHttpToken[c])
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return 0;
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if (s == 64)
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return 0;
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w |= (uint64_t)c << s;
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s += 8;
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}
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return w;
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}
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