mirror of
git://git.code.sf.net/p/zsh/code
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121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/*
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* main.c - the main() function
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*
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* This file is part of zsh, the Z shell.
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*
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* Copyright (c) 1992-1997 Paul Falstad
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* All rights reserved.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and to distribute modified versions of this software for any
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* purpose, provided that the above copyright notice and the following
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* two paragraphs appear in all copies of this software.
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*
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* In no event shall Paul Falstad or the Zsh Development Group be liable
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* to any party for direct, indirect, special, incidental, or consequential
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* damages arising out of the use of this software and its documentation,
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* even if Paul Falstad and the Zsh Development Group have been advised of
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* the possibility of such damage.
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*
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* Paul Falstad and the Zsh Development Group specifically disclaim any
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* warranties, including, but not limited to, the implied warranties of
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* merchantability and fitness for a particular purpose. The software
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* provided hereunder is on an "as is" basis, and Paul Falstad and the
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* Zsh Development Group have no obligation to provide maintenance,
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* support, updates, enhancements, or modifications.
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*
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*/
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#include "zsh.mdh"
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#include "main.pro"
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/**/
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int
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main(int argc, char **argv)
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{
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char **t;
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int t0;
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#ifdef USE_LOCALE
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setlocale(LC_ALL, "");
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#endif
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init_hackzero(argv, environ);
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/*
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* Provisionally set up the type table to allow metafication.
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* This will be done properly when we have decided if we are
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* interactive
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*/
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typtab['\0'] |= IMETA;
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typtab[STOUC(Meta) ] |= IMETA;
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typtab[STOUC(Marker)] |= IMETA;
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for (t0 = (int)STOUC(Pound); t0 <= (int)STOUC(Nularg); t0++)
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typtab[t0] |= ITOK | IMETA;
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for (t = argv; *t; *t = metafy(*t, -1, META_ALLOC), t++);
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zsh_name = argv[0];
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do {
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char *arg0 = zsh_name;
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if (!(zsh_name = strrchr(arg0, '/')))
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zsh_name = arg0;
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else
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zsh_name++;
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if (*zsh_name == '-')
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zsh_name++;
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if (strcmp(zsh_name, "su") == 0) {
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char *sh = zgetenv("SHELL");
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if (sh && *sh && arg0 != sh)
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zsh_name = sh;
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else
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break;
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} else
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break;
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} while (zsh_name);
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fdtable_size = OPEN_MAX;
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fdtable = zcalloc(fdtable_size);
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createoptiontable();
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emulate(zsh_name, 1); /* initialises most options */
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opts[LOGINSHELL] = (**argv == '-');
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opts[MONITOR] = 1; /* may be unset in init_io() */
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opts[PRIVILEGED] = (getuid() != geteuid() || getgid() != getegid());
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opts[USEZLE] = 1; /* may be unset in init_io() */
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parseargs(argv); /* sets INTERACTIVE, SHINSTDIN and SINGLECOMMAND */
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SHTTY = -1;
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init_io();
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setupvals();
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init_signals();
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init_bltinmods();
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run_init_scripts();
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init_misc();
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for (;;) {
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do
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loop(1,0);
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while (tok != ENDINPUT && (tok != LEXERR || isset(SHINSTDIN)));
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if (tok == LEXERR) {
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stopmsg = 1;
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zexit(lastval, 0);
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}
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if (!(isset(IGNOREEOF) && interact)) {
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#if 0
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if (interact)
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fputs(islogin ? "logout\n" : "exit\n", shout);
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#endif
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zexit(lastval, 0);
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continue;
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}
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noexitct++;
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if (noexitct >= 10) {
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stopmsg = 1;
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zexit(lastval, 0);
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}
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zerrnam("zsh", (!islogin) ? "use 'exit' to exit."
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: "use 'logout' to logout.", NULL, 0);
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}
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}
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