int
main(int argc, char **argv)
{
struct jmploc jmploc;
struct stackmark smark;
volatile int state;
char *shinit;
setlocale(LC_ALL, "");
/* Just a --version for show. */
if (argc > 1
&& argv[1][0] == '-'
&& argv[1][1] == '-') {
if (!strcmp(&argv[1][2], "version")) {
printf("kmk_ash - kBuild version %d.%d.%d\n",
KBUILD_VERSION_MAJOR, KBUILD_VERSION_MINOR, KBUILD_VERSION_PATCH);
return 0;
}
if (!strcmp(&argv[1][2], "help")) {
printf("usage: kmk_ash [-aCefnuvxIimqVEb] [+aCefnuvxIimqVEb] [-o option_name]\n"
" [+o option_name] [command_file [argument ...]]\n"
" or: kmk_ash -c [-aCefnuvxIimqVEb] [+aCefnuvxIimqVEb] [-o option_name]\n"
" [+o option_name] command_string [command_name [argument ...]]\n"
" or: kmk_ash -s [-aCefnuvxIimqVEb] [+aCefnuvxIimqVEb] [-o option_name]\n"
" [+o option_name] [argument ...]\n"
" or: kmk_ash --help\n"
" or: kmk_ash --version\n",
argv[0], argv[0], argv[0], argv[0], argv[0]);
return 0;
}
}
#if PROFILE
monitor(4, etext, profile_buf, sizeof profile_buf, 50);
#endif
state = 0;
if (setjmp(jmploc.loc)) {
/*
* When a shell procedure is executed, we raise the
* exception EXSHELLPROC to clean up before executing
* the shell procedure.
*/
switch (exception) {
case EXSHELLPROC:
rootpid = getpid();
rootshell = 1;
minusc = NULL;
state = 3;
break;
case EXEXEC:
exitstatus = exerrno;
break;
case EXERROR:
exitstatus = 2;
break;
default:
break;
}
if (exception != EXSHELLPROC) {
if (state == 0 || iflag == 0 || ! rootshell)
exitshell(exitstatus);
}
reset();
if (exception == EXINT
#if ATTY
&& (! attyset() || equal(termval(), "emacs"))
#endif
) {
out2c('\n');
flushout(&errout);
}
popstackmark(&smark);
FORCEINTON; /* enable interrupts */
if (state == 1)
goto state1;
else if (state == 2)
goto state2;
else if (state == 3)
goto state3;
else
goto state4;
}
handler = &jmploc;
#ifdef DEBUG
#if DEBUG == 2
debug = 1;
#endif
opentrace();
trputs("Shell args: "); trargs(argv);
#endif
rootpid = getpid();
rootshell = 1;
#ifdef _MSC_VER
{
extern void init_syntax(void);
init_syntax();
}
#endif
init();
setstackmark(&smark);
procargs(argc, argv);
if (argv[0] && argv[0][0] == '-') {
state = 1;
#ifndef KMK
read_profile("/etc/profile");
#endif
state1:
state = 2;
#ifndef KMK
read_profile(".profile");
#endif
}
state2:
state = 3;
#ifndef KMK
if (getuid() == geteuid() && getgid() == getegid()) {
if ((shinit = lookupvar("ENV")) != NULL && *shinit != '\0') {
state = 3;
read_profile(shinit);
}
}
#endif
state3:
state = 4;
if (sflag == 0 || minusc) {
static int sigs[] = {
SIGINT, SIGQUIT, SIGHUP,
#ifdef SIGTSTP
SIGTSTP,
#endif
SIGPIPE
};
#define SIGSSIZE (sizeof(sigs)/sizeof(sigs[0]))
int i;
for (i = 0; i < SIGSSIZE; i++)
setsignal(sigs[i], 0);
}
if (minusc)
evalstring(minusc, 0);
if (sflag || minusc == NULL) {
state4: /* XXX ??? - why isn't this before the "if" statement */
cmdloop(1);
}
#if PROFILE
monitor(0);
#endif
exitshell(exitstatus);
/* NOTREACHED */
}
int
main(int argc, char **argv)
{
char *shinit;
volatile int state;
struct jmploc jmploc;
struct stackmark smark;
int login;
int i;
for (i = 1; i < argc; i++) {
if (0 == strcmp(argv[i], "--help") ||
0 == strcmp(argv[i], "-h")) {
sxsh_print_usage();
return (0);
}
if (0 == strcmp(argv[i], "--version") ||
0 == strcmp(argv[i], "-v")) {
sxsh_print_version();
return (0);
}
}
#ifdef __GLIBC__
dash_errno = __errno_location();
#endif
#if PROFILE
monitor(4, etext, profile_buf, sizeof profile_buf, 50);
#endif
state = 0;
if (unlikely(setjmp(jmploc.loc))) {
int e;
int s;
reset();
e = exception;
s = state;
if (e == EXEXIT || s == 0 || iflag == 0 || shlvl)
exitshell();
if (e == EXINT
#if ATTY
&& (! attyset() || equal(termval(), "emacs"))
#endif
) {
out2c('\n');
#ifdef FLUSHERR
flushout(out2);
#endif
}
popstackmark(&smark);
FORCEINTON; /* enable interrupts */
if (s == 1)
goto state1;
else if (s == 2)
goto state2;
else if (s == 3)
goto state3;
else
goto state4;
}
handler = &jmploc;
#ifdef DEBUG
opentrace();
trputs("Shell args: "); trargs(argv);
#endif
rootpid = getpid();
init();
setstackmark(&smark);
login = procargs(argc, argv);
if (login) {
state = 1;
read_profile("/etc/profile");
state1:
state = 2;
read_profile("$HOME/.profile");
}
state2:
state = 3;
if (
#ifndef linux
getuid() == geteuid() && getgid() == getegid() &&
#endif
iflag
) {
if ((shinit = lookupvar("ENV")) != NULL && *shinit != '\0') {
read_profile(shinit);
}
}
popstackmark(&smark);
state3:
state = 4;
if (minusc)
evalstring(minusc, sflag ? 0 : EV_EXIT);
if (sflag || minusc == NULL) {
state4: /* XXX ??? - why isn't this before the "if" statement */
cmdloop(1);
}
#if PROFILE
monitor(0);
#endif
#if GPROF
{
extern void _mcleanup(void);
_mcleanup();
}
#endif
exitshell();
/* NOTREACHED */
}
SH_NORETURN_1 void
shell_main(shinstance *psh, int argc, char **argv)
{
struct jmploc jmploc;
struct stackmark smark;
volatile int state;
char *shinit;
state = 0;
if (setjmp(jmploc.loc)) {
/*
* When a shell procedure is executed, we raise the
* exception EXSHELLPROC to clean up before executing
* the shell procedure.
*/
switch (psh->exception) {
case EXSHELLPROC:
psh->rootpid = /*getpid()*/ psh->pid;
psh->rootshell = 1;
psh->minusc = NULL;
state = 3;
break;
case EXEXEC:
psh->exitstatus = psh->exerrno;
break;
case EXERROR:
psh->exitstatus = 2;
break;
default:
break;
}
if (psh->exception != EXSHELLPROC) {
if (state == 0 || iflag(psh) == 0 || ! psh->rootshell)
exitshell(psh, psh->exitstatus);
}
reset(psh);
if (psh->exception == EXINT
#if ATTY
&& (! attyset(psh) || equal(termval(psh), "emacs"))
#endif
) {
out2c(psh, '\n');
flushout(&psh->errout);
}
popstackmark(psh, &smark);
FORCEINTON; /* enable interrupts */
if (state == 1)
goto state1;
else if (state == 2)
goto state2;
else if (state == 3)
goto state3;
else
goto state4;
}
psh->handler = &jmploc;
psh->rootpid = /*getpid()*/ psh->pid;
psh->rootshell = 1;
#ifdef DEBUG
#if DEBUG == 2
debug(psh) = 1;
#endif
opentrace(psh);
trputs(psh, "Shell args: "); trargs(psh, argv);
#endif
init(psh);
setstackmark(psh, &smark);
procargs(psh, argc, argv);
if (argv[0] && argv[0][0] == '-') {
state = 1;
read_profile(psh, "/etc/profile");
state1:
state = 2;
read_profile(psh, ".profile");
}
state2:
state = 3;
if (sh_getuid(psh) == sh_geteuid(psh) && sh_getgid(psh) == sh_getegid(psh)) {
if ((shinit = lookupvar(psh, "ENV")) != NULL && *shinit != '\0') {
state = 3;
read_profile(psh, shinit);
}
}
state3:
state = 4;
if (sflag(psh) == 0 || psh->minusc) {
static int sigs[] = {
SIGINT, SIGQUIT, SIGHUP,
#ifdef SIGTSTP
SIGTSTP,
#endif
SIGPIPE
};
#define SIGSSIZE (sizeof(sigs)/sizeof(sigs[0]))
unsigned i;
for (i = 0; i < SIGSSIZE; i++)
setsignal(psh, sigs[i], 0);
}
if (psh->minusc)
evalstring(psh, psh->minusc, 0);
if (sflag(psh) || psh->minusc == NULL) {
state4: /* XXX ??? - why isn't this before the "if" statement */
cmdloop(psh, 1);
}
exitshell(psh, psh->exitstatus);
/* NOTREACHED */
}
