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https://github.com/jart/cosmopolitan.git
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a1677d605a
If we keep making changes like this, redbean might not be a toy anymore. Additional steps are also being taken now to prevent ANSI control codes sent by the client from slipping into logs.
54 lines
2.6 KiB
C
54 lines
2.6 KiB
C
/*-*- 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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│ Copyright 2021 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/mem/mem.h"
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#include "libc/str/str.h"
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#include "net/http/http.h"
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/**
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* Decodes ISO-8859-1 to UTF-8.
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*
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* @param data is input value
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* @param size if -1 implies strlen
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* @param out_size if non-NULL receives output length on success
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* @return allocated NUL-terminated buffer, or NULL w/ errno
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*/
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char *DecodeLatin1(const char *data, size_t size, size_t *out_size) {
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int c;
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char *r, *q;
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const char *p, *e;
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if (size == -1) size = strlen(data);
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if ((r = malloc(size * 2 + 1))) {
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q = r;
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p = data;
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e = p + size;
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while (p < e) {
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c = *p++ & 0xff;
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if (c < 0200) {
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*q++ = c;
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} else {
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*q++ = 0300 | c >> 6;
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*q++ = 0200 | c & 077;
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}
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}
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if (out_size) *out_size = q - r;
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*q++ = '\0';
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if ((q = realloc(r, q - r))) r = q;
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}
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return r;
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}
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