63 lines
3.4 KiB
C
63 lines
3.4 KiB
C
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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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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/bits/bits.h"
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#include "libc/bits/pushpop.h"
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#include "libc/dce.h"
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#include "libc/nt/console.h"
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#include "libc/nt/enum/loadlibrarysearch.h"
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#include "libc/nt/runtime.h"
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#include "libc/runtime/getdosenviron.h"
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#include "libc/runtime/internal.h"
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static void LoadFasterAndPreventHijacking(void) {
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unsigned wrote;
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if (!SetDefaultDllDirectories(kNtLoadLibrarySearchSearchSystem32)) {
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WriteFile(GetStdHandle(kNtStdErrorHandle), "nodll\n", 6, &wrote, NULL);
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ExitProcess(1);
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}
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}
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noreturn textwindows int WinMain(void *hInstance, void *hPrevInstance,
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const char *lpCmdLine, int nCmdShow) {
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int i, count;
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const char16_t *cmd16, *env16;
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long auxarray[][2] = {{pushpop(0L), pushpop(0L)}};
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char envblock[ENV_MAX], *envarray[512], argblock[ARG_MAX], *argarray[512];
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LoadFasterAndPreventHijacking();
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*(/*unconst*/ int *)&__hostos = pushpop(WINDOWS);
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cmd16 = GetCommandLine();
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env16 = GetEnvironmentStrings();
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count = getdosargv(cmd16, argblock, ARG_MAX, argarray, 512);
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for (i = 0; argarray[0][i]; ++i) {
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if (argarray[0][i] == '\\') argarray[0][i] = '/';
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}
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getdosenviron(env16, envblock, ENV_MAX, envarray, 512);
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FreeEnvironmentStrings(env16);
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register int argc asm("r12") = count;
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register char **argv asm("r13") = argarray;
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register char **envp asm("r14") = envarray;
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register long(*auxv)[2] asm("r15") = auxarray;
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asm volatile("jmp\t__executive"
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: /* no outputs */
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: "r"(argc), "r"(argv), "r"(envp), "r"(auxv)
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: "memory", "cc");
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unreachable;
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}
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