int
source(char *s)
{
int tempfd, fd, cj, oldlineno;
int oldshst, osubsh, oloops;
FILE *obshin;
char *old_scriptname = scriptname;
if (!s || (tempfd = movefd(open(unmeta(s), O_RDONLY))) == -1) {
return 1;
}
/* save the current shell state */
fd = SHIN; /* store the shell input fd */
obshin = bshin; /* store file handle for buffered shell input */
osubsh = subsh; /* store whether we are in a subshell */
cj = thisjob; /* store our current job number */
oldlineno = lineno; /* store our current lineno */
oloops = loops; /* stored the # of nested loops we are in */
oldshst = opts[SHINSTDIN]; /* store current value of this option */
SHIN = tempfd;
bshin = fdopen(SHIN, "r");
subsh = 0;
lineno = 0;
loops = 0;
dosetopt(SHINSTDIN, 0, 1);
scriptname = s;
sourcelevel++;
loop(0); /* loop through the file to be sourced */
sourcelevel--;
fclose(bshin);
fdtable[SHIN] = 0;
/* restore the current shell state */
SHIN = fd; /* the shell input fd */
bshin = obshin; /* file handle for buffered shell input */
subsh = osubsh; /* whether we are in a subshell */
thisjob = cj; /* current job number */
lineno = oldlineno; /* our current lineno */
loops = oloops; /* the # of nested loops we are in */
dosetopt(SHINSTDIN, oldshst, 1); /* SHINSTDIN option */
errflag = 0;
retflag = 0;
scriptname = old_scriptname;
return 0;
}
int
bin_setopt(char *nam, char **args, UNUSED(Options ops), int isun)
{
int action, optno, match = 0;
/* With no arguments or options, display options. */
if (!*args) {
scanhashtable(optiontab, 1, 0, OPT_ALIAS, optiontab->printnode, !isun);
return 0;
}
/* loop through command line options (begins with "-" or "+") */
while (*args && (**args == '-' || **args == '+')) {
action = (**args == '-') ^ isun;
if(!args[0][1])
*args = "--";
while (*++*args) {
if(**args == Meta)
*++*args ^= 32;
/* The pseudo-option `--' signifies the end of options. */
if (**args == '-') {
args++;
goto doneoptions;
} else if (**args == 'o') {
if (!*++*args)
args++;
if (!*args) {
zwarnnam(nam, "string expected after -o");
inittyptab();
return 1;
}
if(!(optno = optlookup(*args)))
zwarnnam(nam, "no such option: %s", *args);
else if(dosetopt(optno, action, 0, opts))
zwarnnam(nam, "can't change option: %s", *args);
break;
} else if(**args == 'm') {
match = 1;
} else {
if (!(optno = optlookupc(**args)))
zwarnnam(nam, "bad option: -%c", **args);
else if(dosetopt(optno, action, 0, opts))
zwarnnam(nam, "can't change option: -%c", **args);
}
}
args++;
}
doneoptions:
if (!match) {
/* Not globbing the arguments -- arguments are simply option names. */
while (*args) {
if(!(optno = optlookup(*args++)))
zwarnnam(nam, "no such option: %s", args[-1]);
else if(dosetopt(optno, !isun, 0, opts))
zwarnnam(nam, "can't change option: %s", args[-1]);
}
} else {
/* Globbing option (-m) set. */
while (*args) {
Patprog pprog;
char *s, *t;
t = s = dupstring(*args);
while (*t)
if (*t == '_')
chuck(t);
else {
/* See comment in optlookup() */
if (*t >= 'A' && *t <= 'Z')
*t = (*t - 'A') + 'a';
t++;
}
/* Expand the current arg. */
tokenize(s);
if (!(pprog = patcompile(s, PAT_STATIC, NULL))) {
zwarnnam(nam, "bad pattern: %s", *args);
continue;
}
/* Loop over expansions. */
scanmatchtable(optiontab, pprog, 0, 0, OPT_ALIAS,
setoption, !isun);
args++;
}
}
inittyptab();
return 0;
}
static void
setoption(HashNode hn, int value)
{
dosetopt(((Optname) hn)->optno, value, 0, opts);
}
void
parseargs(char **argv)
{
char **x;
int action, optno;
LinkList paramlist;
int bourne = (emulation == EMULATE_KSH || emulation == EMULATE_SH);
hackzero = argzero = *argv++;
SHIN = 0;
/* There's a bit of trickery with opts[INTERACTIVE] here. It starts *
* at a value of 2 (instead of 1) or 0. If it is explicitly set on *
* the command line, it goes to 1 or 0. If input is coming from *
* somewhere that normally makes the shell non-interactive, we do *
* "opts[INTERACTIVE] &= 1", so that only a *default* on state will *
* be changed. At the end of the function, a value of 2 gets *
* changed to 1. */
opts[INTERACTIVE] = isatty(0) ? 2 : 0;
opts[SHINSTDIN] = 0;
opts[SINGLECOMMAND] = 0;
/* loop through command line options (begins with "-" or "+") */
while (*argv && (**argv == '-' || **argv == '+')) {
action = (**argv == '-');
if(!argv[0][1])
*argv = "--";
while (*++*argv) {
/* The pseudo-option `--' signifies the end of options. *
* `-b' does too, csh-style, unless we're emulating a *
* Bourne style shell. */
if (**argv == '-' || (!bourne && **argv == 'b')) {
argv++;
goto doneoptions;
}
if (**argv == 'c') { /* -c command */
if (!*++argv) {
zerr("string expected after -c", NULL, 0);
exit(1);
}
cmd = *argv++;
opts[INTERACTIVE] &= 1;
opts[SHINSTDIN] = 0;
goto doneoptions;
} else if (**argv == 'o') {
if (!*++*argv)
argv++;
if (!*argv) {
zerr("string expected after -o", NULL, 0);
exit(1);
}
if(!(optno = optlookup(*argv)))
zerr("no such option: %s", *argv, 0);
else
dosetopt(optno, action, 1);
break;
} else {
if (!(optno = optlookupc(**argv))) {
zerr("bad option: -%c", NULL, **argv);
exit(1);
} else
dosetopt(optno, action, 1);
}
}
argv++;
}
doneoptions:
paramlist = newlinklist();
if (*argv) {
if (unset(SHINSTDIN)) {
argzero = *argv;
if (!cmd)
SHIN = movefd(open(unmeta(argzero), O_RDONLY));
if (SHIN == -1) {
zerr("can't open input file: %s", argzero, 0);
exit(1);
}
opts[INTERACTIVE] &= 1;
argv++;
}
while (*argv)
addlinknode(paramlist, ztrdup(*argv++));
} else
opts[SHINSTDIN] = 1;
if(isset(SINGLECOMMAND))
opts[INTERACTIVE] &= 1;
opts[INTERACTIVE] = !!opts[INTERACTIVE];
pparams = x = (char **) zcalloc((countlinknodes(paramlist) + 1) * sizeof(char *));
while ((*x++ = (char *)getlinknode(paramlist)));
free(paramlist);
argzero = ztrdup(argzero);
}
