mod_export int
dosetopt(int optno, int value, int force)
{
if(!optno)
return -1;
if(optno < 0) {
optno = -optno;
value = !value;
}
if (optno == RESTRICTED) {
if (isset(RESTRICTED))
return value ? 0 : -1;
if (value) {
char **s;
for (s = rparams; *s; s++)
restrictparam(*s);
}
} else if(!force && optno == EXECOPT && !value && interact) {
/* cannot set noexec when interactive */
return -1;
} else if(!force && (optno == INTERACTIVE || optno == SHINSTDIN ||
optno == SINGLECOMMAND)) {
if (opts[optno] == value)
return 0;
/* it is not permitted to change the value of these options */
return -1;
} else if(!force && optno == USEZLE && value) {
/* we require a terminal in order to use ZLE */
if(!interact || SHTTY == -1 || !shout)
return -1;
} else if(optno == PRIVILEGED && !value) {
/* unsetting PRIVILEGED causes the shell to make itself unprivileged */
#ifdef HAVE_SETUID
setuid(getuid());
setgid(getgid());
#endif /* HAVE_SETUID */
#ifndef JOB_CONTROL
} else if(optno == MONITOR && value) {
return -1;
#endif /* not JOB_CONTROL */
#ifdef GETPWNAM_FAKED
} else if(optno == CDABLEVARS && value) {
return -1;
#endif /* GETPWNAM_FAKED */
} else if ((optno == EMACSMODE || optno == VIMODE) && value) {
(*zlesetkeymapptr)(optno);
opts[(optno == EMACSMODE) ? VIMODE : EMACSMODE] = 0;
}
opts[optno] = value;
if (optno == BANGHIST || optno == SHINSTDIN)
inittyptab();
return 0;
}
mod_export int
dosetopt(int optno, int value, int force, char *new_opts)
{
if(!optno)
return -1;
if(optno < 0) {
optno = -optno;
value = !value;
}
if (optno == RESTRICTED) {
if (isset(RESTRICTED))
return value ? 0 : -1;
if (value) {
char **s;
for (s = rparams; *s; s++)
restrictparam(*s);
}
} else if(!force && optno == EXECOPT && !value && interact) {
/* cannot set noexec when interactive */
return -1;
} else if(!force && (optno == INTERACTIVE || optno == SHINSTDIN ||
optno == SINGLECOMMAND)) {
if (new_opts[optno] == value)
return 0;
/* it is not permitted to change the value of these options */
return -1;
} else if(!force && optno == USEZLE && value) {
/* we require a terminal in order to use ZLE */
if(!interact || SHTTY == -1 || !shout)
return -1;
} else if(optno == PRIVILEGED && !value) {
/* unsetting PRIVILEGED causes the shell to make itself unprivileged */
#ifdef HAVE_SETUID
setuid(getuid());
setgid(getgid());
if (setuid(getuid())) {
zwarn("failed to change user ID: %e", errno);
return -1;
} else if (setgid(getgid())) {
zwarn("failed to change group ID: %e", errno);
return -1;
}
#else
zwarn("setuid not available");
return -1;
#endif /* not HAVE_SETUID */
#ifdef JOB_CONTROL
} else if (!force && optno == MONITOR && value) {
if (new_opts[optno] == value)
return 0;
if (SHTTY != -1) {
origpgrp = GETPGRP();
acquire_pgrp();
} else
return -1;
#else
} else if(optno == MONITOR && value) {
return -1;
#endif /* not JOB_CONTROL */
#ifdef GETPWNAM_FAKED
} else if(optno == CDABLEVARS && value) {
return -1;
#endif /* GETPWNAM_FAKED */
} else if ((optno == EMACSMODE || optno == VIMODE) && value) {
if (sticky && sticky->emulation)
return -1;
zleentry(ZLE_CMD_SET_KEYMAP, optno);
new_opts[(optno == EMACSMODE) ? VIMODE : EMACSMODE] = 0;
} else if (optno == SUNKEYBOARDHACK) {
/* for backward compatibility */
keyboardhackchar = (value ? '`' : '\0');
}
new_opts[optno] = value;
if (optno == BANGHIST || optno == SHINSTDIN)
inittyptab();
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;
}
int
init_term(void)
{
#ifndef TGETENT_ACCEPTS_NULL
static char termbuf[2048]; /* the termcap buffer */
#endif
if (!*term)
return termok = TERM_BAD;
/* unset zle if using zsh under emacs */
if (!strcmp(term, "emacs"))
opts[USEZLE] = 0;
#ifdef TGETENT_ACCEPTS_NULL
/* If possible, we let tgetent allocate its own termcap buffer */
if (tgetent(NULL, term) != 1) {
#else
if (tgetent(termbuf, term) != 1) {
#endif
if (isset(INTERACTIVE))
zerr("can't find termcap info for %s", term, 0);
errflag = 0;
return termok = TERM_BAD;
} else {
char tbuf[1024], *pp;
int t0;
termok = TERM_OK;
for (t0 = 0; t0 != TC_COUNT; t0++) {
pp = tbuf;
zsfree(tcstr[t0]);
/* AIX tgetstr() ignores second argument */
if (!(pp = tgetstr(tccapnams[t0], &pp)))
tcstr[t0] = NULL, tclen[t0] = 0;
else {
tclen[t0] = strlen(pp);
tcstr[t0] = (char *) zalloc(tclen[t0] + 1);
memcpy(tcstr[t0], pp, tclen[t0] + 1);
}
}
/* check whether terminal has automargin (wraparound) capability */
hasam = tgetflag("am");
/* if there's no termcap entry for cursor up, use single line mode: *
* this is flagged by termok which is examined in zle_refresh.c *
*/
if (!tccan(TCUP)) {
tcstr[TCUP] = NULL;
termok = TERM_NOUP;
}
/* if there's no termcap entry for cursor left, use \b. */
if (!tccan(TCLEFT)) {
tcstr[TCLEFT] = ztrdup("\b");
tclen[TCLEFT] = 1;
}
/* if the termcap entry for down is \n, don't use it. */
if (tccan(TCDOWN) && tcstr[TCDOWN][0] == '\n') {
tclen[TCDOWN] = 0;
zsfree(tcstr[TCDOWN]);
tcstr[TCDOWN] = NULL;
}
/* if there's no termcap entry for clear, use ^L. */
if (!tccan(TCCLEARSCREEN)) {
tcstr[TCCLEARSCREEN] = ztrdup("\14");
tclen[TCCLEARSCREEN] = 1;
}
}
return termok;
}
/* Initialize lots of global variables and hash tables */
/**/
void
setupvals(void)
{
struct passwd *pswd;
struct timezone dummy_tz;
char *ptr;
#ifdef HAVE_GETRLIMIT
int i;
#endif
noeval = 0;
curhist = 0;
histsiz = DEFAULT_HISTSIZE;
inithist();
clwords = (char **) zcalloc((clwsize = 16) * sizeof(char *));
cmdstack = (unsigned char *) zalloc(256);
cmdsp = 0;
bangchar = '!';
hashchar = '#';
hatchar = '^';
termok = TERM_BAD;
curjob = prevjob = coprocin = coprocout = -1;
gettimeofday(&shtimer, &dummy_tz); /* init $SECONDS */
srand((unsigned int)(shtimer.tv_sec + shtimer.tv_usec)); /* seed $RANDOM */
hostnam = (char *) zalloc(256);
gethostname(hostnam, 256);
/* Set default path */
path = (char **) zalloc(sizeof(*path) * 5);
path[0] = ztrdup("/bin");
path[1] = ztrdup("/usr/bin");
path[2] = ztrdup("/usr/ucb");
path[3] = ztrdup("/usr/local/bin");
path[4] = NULL;
cdpath = mkarray(NULL);
manpath = mkarray(NULL);
fignore = mkarray(NULL);
fpath = mkarray(NULL);
mailpath = mkarray(NULL);
watch = mkarray(NULL);
psvar = mkarray(NULL);
#ifdef DYNAMIC
module_path = mkarray(ztrdup(MODULE_DIR));
modules = newlinklist();
#endif
/* Set default prompts */
if (opts[INTERACTIVE]) {
prompt = ztrdup("%m%# ");
prompt2 = ztrdup("%_> ");
} else {
prompt = ztrdup("");
prompt2 = ztrdup("");
}
prompt3 = ztrdup("?# ");
prompt4 = ztrdup("+ ");
sprompt = ztrdup("zsh: correct '%R' to '%r' [nyae]? ");
ifs = ztrdup(DEFAULT_IFS);
wordchars = ztrdup(DEFAULT_WORDCHARS);
postedit = ztrdup("");
underscore = ztrdup("");
zoptarg = ztrdup("");
zoptind = 1;
schedcmds = NULL;
ppid = (long) getppid();
mypid = (long) getpid();
term = ztrdup("");
#ifdef TIOCGWINSZ
if (!(columns = shttyinfo.winsize.ws_col))
columns = 80;
if (columns < 2)
opts[USEZLE] = 0;
if (!(lines = shttyinfo.winsize.ws_row))
lines = 24;
if (lines < 2)
opts[SINGLELINEZLE] = 1;
#else
columns = 80;
lines = 24;
#endif
/* The following variable assignments cause zsh to behave more *
* like Bourne and Korn shells when invoked as "sh" or "ksh". *
* NULLCMD=":" and READNULLCMD=":" */
if (emulation == EMULATE_KSH || emulation == EMULATE_SH) {
nullcmd = ztrdup(":");
readnullcmd = ztrdup(":");
} else {
nullcmd = ztrdup("cat");
readnullcmd = ztrdup("more");
}
/* We cache the uid so we know when to *
* recheck the info for `USERNAME' */
cached_uid = getuid();
/* Get password entry and set info for `HOME' and `USERNAME' */
if ((pswd = getpwuid(cached_uid))) {
home = metafy(pswd->pw_dir, -1, META_DUP);
cached_username = ztrdup(pswd->pw_name);
} else {
home = ztrdup("/");
cached_username = ztrdup("");
}
/* Try a cheap test to see if we can *
* initialize `PWD' from `HOME' */
if (ispwd(home))
pwd = ztrdup(home);
else if ((ptr = zgetenv("PWD")) && ispwd(ptr))
pwd = ztrdup(ptr);
else
pwd = metafy(zgetcwd(), -1, META_REALLOC);
oldpwd = ztrdup(pwd); /* initialize `OLDPWD' = `PWD' */
#ifdef __EMX__
*cdrive = _getdrive();
strcat(cdrive+1,":");
#endif
inittyptab(); /* initialize the ztypes table */
initlextabs(); /* initialize lexing tables */
createreswdtable(); /* create hash table for reserved words */
createaliastable(); /* create hash table for aliases */
createcmdnamtable(); /* create hash table for external commands */
createshfunctable(); /* create hash table for shell functions */
createbuiltintable(); /* create hash table for builtin commands */
createnameddirtable(); /* create hash table for named directories */
createparamtable(); /* create paramater hash table */
#ifdef ZLE_MODULE
add_dep("compctl", "zle");
addbuiltin("bindkey", 0, NULL, 0, -1, "zle");
addbuiltin("vared", 0, NULL, 1, 7, "zle");
addbuiltin("compctl", 0, NULL, 0, -1, "compctl");
#endif
#ifdef HAVE_GETRLIMIT
for (i = 0; i != RLIM_NLIMITS; i++) {
getrlimit(i, current_limits + i);
limits[i] = current_limits[i];
}
#endif
breaks = loops = 0;
lastmailcheck = time(NULL);
locallist = NULL;
locallevel = sourcelevel = 0;
trapreturn = 0;
noerrexit = 0;
nohistsave = 1;
dirstack = newlinklist();
bufstack = newlinklist();
hsubl = hsubr = NULL;
lastpid = 0;
bshin = SHIN ? fdopen(SHIN, "r") : stdin;
if (isset(SHINSTDIN) && !SHIN && unset(INTERACTIVE)) {
#ifdef _IONBF
setvbuf(stdin, NULL, _IONBF, 0);
#else
setlinebuf(stdin);
#endif
}
times(&shtms);
}
/* Initialize signal handling */
/**/
void
init_signals(void)
{
intr();
#ifndef QDEBUG
signal_ignore(SIGQUIT);
#endif
install_handler(SIGHUP);
install_handler(SIGCHLD);
if (interact) {
install_handler(SIGALRM);
#ifdef SIGWINCH
install_handler(SIGWINCH);
#endif
signal_ignore(SIGTERM);
}
if (jobbing) {
long ttypgrp;
#ifndef __EMX__
while ((ttypgrp = gettygrp()) != -1 && ttypgrp != mypgrp)
kill(0, SIGTTIN);
#endif
if (ttypgrp == -1) {
opts[MONITOR] = 0;
} else {
#ifndef __EMX__
signal_ignore(SIGTTOU);
signal_ignore(SIGTSTP);
signal_ignore(SIGTTIN);
#endif
signal_ignore(SIGPIPE);
attachtty(mypgrp);
}
}
if (islogin) {
signal_setmask(signal_mask(0));
} else if (interact) {
sigset_t set;
sigemptyset(&set);
sigaddset(&set, SIGINT);
sigaddset(&set, SIGQUIT);
signal_unblock(set);
}
}