mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
9208c83f7a
- add vdso dump utility - tests now log stack usage - rename g_ftrace to __ftrace - make internal spinlocks go faster - add conformant c11 atomics library - function tracing now logs stack usage - make function call tracing thread safe - add -X unsecure (no ssl) mode to redbean - munmap() has more consistent behavior now - pacify fsync() calls on python unit tests - make --strace flag work better in redbean - start minimizing and documenting compiler flags
121 lines
4.2 KiB
C
121 lines
4.2 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 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/calls/ntspawn.h"
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#include "libc/mem/mem.h"
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#include "libc/str/str.h"
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#include "libc/str/thompike.h"
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#include "libc/str/utf16.h"
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#include "libc/sysv/errfuns.h"
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#define APPEND(c) \
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do { \
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cmdline[k++] = c; \
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if (k == ARG_MAX / 2) { \
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return e2big(); \
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} \
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} while (0)
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static bool NeedsQuotes(const char *s) {
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if (!*s) return true;
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do {
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if (*s == ' ' || *s == '\t') {
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return true;
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}
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} while (*s++);
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return false;
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}
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/**
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* Converts System V argv to Windows-style command line.
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*
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* Escaping is performed and it's designed to round-trip with
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* GetDosArgv() or GetDosArgv(). This function does NOT escape
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* command interpreter syntax, e.g. $VAR (sh), %VAR% (cmd).
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*
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* @param cmdline is output buffer
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* @param prog is used as argv[0]
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* @param argv is an a NULL-terminated array of UTF-8 strings
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* @return freshly allocated lpCommandLine or NULL w/ errno
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* @see libc/runtime/dosargv.c
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*/
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textwindows int mkntcmdline(char16_t cmdline[ARG_MAX / 2], const char *prog,
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char *const argv[]) {
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char *arg;
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uint64_t w;
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wint_t x, y;
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int slashes, n;
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bool needsquote;
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char16_t cbuf[2];
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char *ansiargv[2];
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size_t i, j, k, s;
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if (!argv[0]) {
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bzero(ansiargv, sizeof(ansiargv));
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argv = ansiargv;
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}
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for (arg = prog, k = i = 0; arg; arg = argv[++i]) {
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if (i) APPEND(u' ');
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if ((needsquote = NeedsQuotes(arg))) APPEND(u'"');
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for (slashes = j = 0;;) {
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x = arg[j++] & 255;
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if (x >= 0300) {
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n = ThomPikeLen(x);
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x = ThomPikeByte(x);
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while (--n) {
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if ((y = arg[j++] & 255)) {
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x = ThomPikeMerge(x, y);
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} else {
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x = 0;
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break;
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}
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}
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}
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if (!x) break;
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if (!i && x == '/') {
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x = '\\';
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}
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if (x == '\\') {
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++slashes;
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} else if (x == '"') {
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for (s = 0; s < slashes * 2; ++s) {
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APPEND(u'\\');
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}
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slashes = 0;
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APPEND(u'\\');
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APPEND(u'"');
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} else {
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for (s = 0; s < slashes; ++s) {
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APPEND(u'\\');
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}
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slashes = 0;
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w = EncodeUtf16(x);
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do {
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APPEND(w);
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} while ((w >>= 16));
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}
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}
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for (s = 0; s < (slashes << needsquote); ++s) {
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APPEND(u'\\');
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}
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if (needsquote) {
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APPEND(u'"');
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}
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}
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cmdline[k] = u'\0';
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return 0;
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}
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