2020-06-15 14:18:57 +00:00
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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2022-04-12 12:20:17 +00:00
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│ Copyright 2022 Justine Alexandra Roberts Tunney │
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2020-06-15 14:18:57 +00:00
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│ │
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2020-12-28 01:18:44 +00:00
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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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2020-06-15 14:18:57 +00:00
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│ │
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2020-12-28 01:18:44 +00:00
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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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2020-06-15 14:18:57 +00:00
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╚─────────────────────────────────────────────────────────────────────────────*/
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2022-10-17 18:02:04 +00:00
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#include "libc/dce.h"
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2023-08-18 16:34:14 +00:00
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#include "libc/intrin/getenv.internal.h"
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2020-11-25 16:19:00 +00:00
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2022-10-17 18:02:04 +00:00
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#define ToUpper(c) \
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(IsWindows() && (c) >= 'a' && (c) <= 'z' ? (c) - 'a' + 'A' : (c))
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2023-08-19 13:41:06 +00:00
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dontasan privileged struct Env __getenv(char **p, const char *k) {
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2022-10-17 18:02:04 +00:00
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char *t;
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int i, j;
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for (i = 0; (t = p[i]); ++i) {
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for (j = 0;; ++j) {
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if (!k[j] || k[j] == '=') {
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if (!t[j]) return (struct Env){t + j, i};
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if (t[j] == '=') return (struct Env){t + j + 1, i};
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break;
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}
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if (ToUpper(k[j] & 255) != ToUpper(t[j] & 255)) {
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break;
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}
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}
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2020-06-15 14:18:57 +00:00
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}
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2022-10-17 18:02:04 +00:00
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return (struct Env){0, i};
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2020-06-15 14:18:57 +00:00
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}
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