int
main(int argc, char *argv[])
{
EditLine *el = NULL;
int num;
const char *buf;
Tokenizer *tok;
#if 0
int lastevent = 0;
#endif
int ncontinuation;
History *hist;
HistEvent ev;
(void) setlocale(LC_CTYPE, "");
(void) signal(SIGINT, sig);
(void) signal(SIGQUIT, sig);
(void) signal(SIGHUP, sig);
(void) signal(SIGTERM, sig);
hist = history_init(); /* Init the builtin history */
/* Remember 100 events */
history(hist, &ev, H_SETSIZE, 100);
tok = tok_init(NULL); /* Initialize the tokenizer */
/* Initialize editline */
el = el_init(*argv, stdin, stdout, stderr);
el_set(el, EL_EDITOR, "vi"); /* Default editor is vi */
el_set(el, EL_SIGNAL, 1); /* Handle signals gracefully */
el_set(el, EL_PROMPT_ESC, prompt, '\1');/* Set the prompt function */
/* Tell editline to use this history interface */
el_set(el, EL_HIST, history, hist);
/* Add a user-defined function */
el_set(el, EL_ADDFN, "ed-complete", "Complete argument", complete);
/* Bind tab to it */
el_set(el, EL_BIND, "^I", "ed-complete", NULL);
/*
* Bind j, k in vi command mode to previous and next line, instead
* of previous and next history.
*/
el_set(el, EL_BIND, "-a", "k", "ed-prev-line", NULL);
el_set(el, EL_BIND, "-a", "j", "ed-next-line", NULL);
/*
* Source the user's defaults file.
*/
el_source(el, NULL);
while ((buf = el_gets(el, &num)) != NULL && num != 0) {
int ac, cc, co;
#ifdef DEBUG
int i;
#endif
const char **av;
const LineInfo *li;
li = el_line(el);
#ifdef DEBUG
(void) fprintf(stderr, "==> got %d %s", num, buf);
(void) fprintf(stderr, " > li `%.*s_%.*s'\n",
(li->cursor - li->buffer), li->buffer,
(li->lastchar - 1 - li->cursor),
(li->cursor >= li->lastchar) ? "" : li->cursor);
#endif
if (gotsig) {
(void) fprintf(stderr, "Got signal %d.\n", (int)gotsig);
gotsig = 0;
el_reset(el);
}
if (!continuation && num == 1)
continue;
ac = cc = co = 0;
ncontinuation = tok_line(tok, li, &ac, &av, &cc, &co);
if (ncontinuation < 0) {
(void) fprintf(stderr, "Internal error\n");
continuation = 0;
continue;
}
#ifdef DEBUG
(void) fprintf(stderr, " > nc %d ac %d cc %d co %d\n",
ncontinuation, ac, cc, co);
#endif
#if 0
if (continuation) {
/*
* Append to the right event in case the user
* moved around in history.
*/
if (history(hist, &ev, H_SET, lastevent) == -1)
err(1, "%d: %s", lastevent, ev.str);
history(hist, &ev, H_ADD , buf);
} else {
history(hist, &ev, H_ENTER, buf);
lastevent = ev.num;
}
#else
/* Simpler */
history(hist, &ev, continuation ? H_APPEND : H_ENTER, buf);
#endif
continuation = ncontinuation;
ncontinuation = 0;
if (continuation)
continue;
#ifdef DEBUG
for (i = 0; i < ac; i++) {
(void) fprintf(stderr, " > arg# %2d ", i);
if (i != cc)
(void) fprintf(stderr, "`%s'\n", av[i]);
else
(void) fprintf(stderr, "`%.*s_%s'\n",
co, av[i], av[i] + co);
}
#endif
if (strcmp(av[0], "history") == 0) {
int rv;
switch (ac) {
case 1:
for (rv = history(hist, &ev, H_LAST); rv != -1;
rv = history(hist, &ev, H_PREV))
(void) fprintf(stdout, "%4d %s",
ev.num, ev.str);
break;
case 2:
if (strcmp(av[1], "clear") == 0)
history(hist, &ev, H_CLEAR);
else
goto badhist;
break;
case 3:
if (strcmp(av[1], "load") == 0)
history(hist, &ev, H_LOAD, av[2]);
else if (strcmp(av[1], "save") == 0)
history(hist, &ev, H_SAVE, av[2]);
break;
badhist:
default:
(void) fprintf(stderr,
"Bad history arguments\n");
break;
}
} else if (el_parse(el, ac, av) == -1) {
switch (fork()) {
case 0:
execvp(av[0], __DECONST(char **, av));
perror(av[0]);
_exit(1);
/*NOTREACHED*/
break;
case -1:
perror("fork");
break;
default:
if (wait(&num) == -1)
perror("wait");
(void) fprintf(stderr, "Exit %x\n", num);
break;
}
}
tok_reset(tok);
}
el_end(el);
tok_end(tok);
history_end(hist);
return (0);
}
int el_parse_from_buffer (stralloc *sa, buffer *b)
{
return el_parse(sa, &next, b) ;
}
int
cmdloop(void)
{
char *line;
const char *elline;
int cmd_argc, rval = 0, known;
#define scratch known
char **cmd_argv;
struct cmdtable *cmdp;
History *hist;
EditLine *elptr;
HistEvent he;
curinode = check_ginode(ROOTINO);
curinum = ROOTINO;
printactive(0);
hist = history_init();
history(hist, &he, H_SETSIZE, 100); /* 100 elt history buffer */
elptr = el_init("fsdb", stdin, stdout, stderr);
el_set(elptr, EL_EDITOR, "emacs");
el_set(elptr, EL_PROMPT, prompt);
el_set(elptr, EL_HIST, history, hist);
el_source(elptr, NULL);
while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) {
if (check_debug)
printf("command `%s'\n", elline);
history(hist, &he, H_ENTER, elline);
line = strdup(elline);
cmd_argv = crack(line, &cmd_argc);
/*
* el_parse returns -1 to signal that it's not been handled
* internally.
*/
if (el_parse(elptr, cmd_argc, (const char **)cmd_argv) != -1)
continue;
if (cmd_argc) {
known = 0;
for (cmdp = cmds; cmdp->cmd; cmdp++) {
if (!strcmp(cmdp->cmd, cmd_argv[0])) {
if ((cmdp->flags & FL_WR) == FL_WR && nflag)
warnx("`%s' requires write access", cmd_argv[0]),
rval = 1;
else if (cmd_argc >= cmdp->minargc &&
cmd_argc <= cmdp->maxargc)
rval = (*cmdp->handler)(cmd_argc, cmd_argv);
else if (cmd_argc >= cmdp->minargc &&
(cmdp->flags & FL_ST) == FL_ST) {
strcpy(line, elline);
cmd_argv = recrack(line, &cmd_argc, cmdp->maxargc);
rval = (*cmdp->handler)(cmd_argc, cmd_argv);
} else
rval = argcount(cmdp, cmd_argc, cmd_argv);
known = 1;
break;
}
}
if (!known)
warnx("unknown command `%s'", cmd_argv[0]), rval = 1;
} else
rval = 0;
free(line);
if (rval < 0)
/* user typed "quit" */
return 0;
if (rval)
warnx("rval was %d", rval);
}
el_end(elptr);
history_end(hist);
return rval;
}
int
cmdloop(void *arg)
{
struct clitenv *env = arg;
EditLine *el = env->el;
History *hist = env->hist;
const char *elline;
int cnt;
char **argv;
int maxargs = 16; /* XXX */
int stop;
stop = 0;
if ((argv = calloc(sizeof(char *), maxargs)) == NULL)
err(1, "malloc");
while (!stop && (elline = el_gets(el, &cnt)) != NULL) {
char *line, *orgline;
struct c**t *cmdp;
char **ap;
int argc, res;
HistEvent ev;
memset(argv, 0, sizeof(char *) * maxargs);
history(hist, &ev, H_ENTER, elline);
orgline = line = strdup(elline);
if (line == NULL)
err(1, "strdup");
argc = 0;
for (ap = argv; (*ap = strsep(&line, " \t\n")) != NULL;) {
if (**ap != '\0') {
++ap;
if (++argc == maxargs)
break;
}
}
if (argc == maxargs) {
fprintf(stderr, "Too many arguments\n");
goto cmdout;
}
if (!argc)
goto cmdout;
/*
* Editline commands.
*/
if (el_parse(el, argc, (const char **)argv) != -1)
goto cmdout;
if ((res = name_to_cmd(argv[0], env->cmds, env->ncmds,
&cmdp)) == 1) {
if (argc - 1 > cmdp->maxargc)
fprintf(stderr, "Too many arguments\n");
else if (argc - 1 < cmdp->minargc)
fprintf(stderr, "Too few arguments\n");
else
stop = (*cmdp->handler)(argc, argv,
cmdp->arg ? cmdp->arg : env);
} else {
fprintf(stderr, "%s command: %s\n",
res == 0 ? "unknown" : "ambiguous", argv[0]);
}
cmdout:
free(orgline);
}
free(argv);
return stop;
}
/*
* Command parser.
*/
static void
cmdscanner(void)
{
register struct cmd *c;
static EditLine *el;
static History *hist;
HistEvent he;
size_t len;
int num;
const char *bp;
num = 0;
bp = NULL;
el = NULL;
hist = NULL;
for (;;) {
if (fromatty) {
if (!el) {
el = el_init("lpc", stdin, stdout, stderr);
hist = history_init();
history(hist, &he, H_SETSIZE, 100);
el_set(el, EL_HIST, history, hist);
el_set(el, EL_EDITOR, "emacs");
el_set(el, EL_PROMPT, lpc_prompt);
el_set(el, EL_SIGNAL, 1);
el_source(el, NULL);
/*
* EditLine init may call 'cgetset()' to set a
* capability-db meant for termcap (eg: to set
* terminal type 'xterm'). Reset that now, or
* that same db-information will be used for
* printcap (giving us an "xterm" printer, with
* all kinds of invalid capabilities...).
*/
cgetset(NULL);
}
if ((bp = el_gets(el, &num)) == NULL || num == 0)
quit(0, NULL);
len = (num > MAX_CMDLINE - 1) ? MAX_CMDLINE - 1 : num;
memcpy(cmdline, bp, len);
cmdline[len] = 0;
history(hist, &he, H_ENTER, bp);
} else {
if (fgets(cmdline, MAX_CMDLINE, stdin) == NULL)
quit(0, NULL);
if (cmdline[0] == 0 || cmdline[0] == '\n')
break;
}
makeargv();
if (margc == 0)
continue;
if (el != NULL && el_parse(el, margc, margv) != -1)
continue;
c = getcmd(margv[0]);
if (c == (struct cmd *)-1) {
printf("?Ambiguous command\n");
continue;
}
if (c == NULL) {
printf("?Invalid command\n");
continue;
}
if ((c->c_opts & LPC_PRIVCMD) && getuid() &&
ingroup(LPR_OPER) == 0) {
printf("?Privileged command\n");
continue;
}
/*
* Two different commands might have the same generic rtn
* (eg: "clean" and "tclean"), and just use different
* handler routines for distinct command-setup. The handler
* routine might also be set on a generic routine for
* initial parameter processing.
*/
if (c->c_generic != NULL)
generic(c->c_generic, c->c_opts, c->c_handler,
margc, margv);
else
(*c->c_handler)(margc, margv);
}
}
int
main(int argc, char *argv[])
{
int num;
const char *buf;
Tokenizer *tok;
#if 0
int lastevent = 0;
#endif
int ncontinuation;
History *hist;
HistEvent ev;
(void) signal(SIGINT, sig);
(void) signal(SIGQUIT, sig);
(void) signal(SIGHUP, sig);
(void) signal(SIGTERM, sig);
hist = history_init(); /* Init the builtin history */
/* Remember 100 events */
history(hist, &ev, H_SETSIZE, 100);
tok = tok_init(NULL); /* Initialize the tokenizer */
/* Initialize editline */
el = el_init(*argv, stdin, stdout, stderr);
el_set(el, EL_EDITOR, "vi"); /* Default editor is vi */
el_set(el, EL_SIGNAL, 1); /* Handle signals gracefully */
el_set(el, EL_PROMPT, prompt); /* Set the prompt function */
/* Tell editline to use this history interface */
el_set(el, EL_HIST, history, hist);
/* Add a user-defined function */
el_set(el, EL_ADDFN, "ed-complete", "Complete argument", complete);
/* Bind tab to it */
el_set(el, EL_BIND, "^I", "ed-complete", NULL);
/*
* Bind j, k in vi command mode to previous and next line, instead
* of previous and next history.
*/
el_set(el, EL_BIND, "-a", "k", "ed-prev-line", NULL);
el_set(el, EL_BIND, "-a", "j", "ed-next-line", NULL);
/*
* Source the user's defaults file.
*/
el_source(el, NULL);
while ((buf = el_gets(el, &num)) != NULL && num != 0) {
int ac;
const char **av;
#ifdef DEBUG
(void) fprintf(stderr, "got %d %s", num, buf);
#endif
if (!continuation && num == 1)
continue;
ncontinuation = tok_line(tok, buf, &ac, &av) > 0;
#if 0
if (continuation) {
/*
* Append to the right event in case the user
* moved around in history.
*/
if (history(hist, &ev, H_SET, lastevent) == -1)
err(1, "%d: %s\n", lastevent, ev.str);
history(hist, &ev, H_ADD , buf);
} else {
history(hist, &ev, H_ENTER, buf);
lastevent = ev.num;
}
#else
/* Simpler */
history(hist, &ev, continuation ? H_APPEND : H_ENTER, buf);
#endif
continuation = ncontinuation;
ncontinuation = 0;
if (strcmp(av[0], "history") == 0) {
int rv;
switch (ac) {
case 1:
for (rv = history(hist, &ev, H_LAST); rv != -1;
rv = history(hist, &ev, H_PREV))
(void) fprintf(stdout, "%4d %s",
ev.num, ev.str);
break;
case 2:
if (strcmp(av[1], "clear") == 0)
history(hist, &ev, H_CLEAR);
else
goto badhist;
break;
case 3:
if (strcmp(av[1], "load") == 0)
history(hist, &ev, H_LOAD, av[2]);
else if (strcmp(av[1], "save") == 0)
history(hist, &ev, H_SAVE, av[2]);
break;
badhist:
default:
(void) fprintf(stderr,
"Bad history arguments\n");
break;
}
} else if (el_parse(el, ac, av) == -1) {
switch (fork()) {
case 0:
execvp(av[0], (char *const *)av);
perror(av[0]);
_exit(1);
/*NOTREACHED*/
break;
case -1:
perror("fork");
break;
default:
if (wait(&num) == -1)
perror("wait");
(void) fprintf(stderr, "Exit %x\n", num);
break;
}
}
tok_reset(tok);
}
el_end(el);
tok_end(tok);
history_end(hist);
return (0);
}
static int
cmdloop(void)
{
char *line = NULL;
const char *elline;
int cmd_argc, rval = 0, known;
#define scratch known
char **cmd_argv;
struct cmdtable *cmdp;
History *hist;
EditLine *elptr;
HistEvent hev;
curinode = ginode(ROOTINO);
curinum = ROOTINO;
printactive();
hist = history_init();
history(hist, &hev, H_SETSIZE, 100); /* 100 elt history buffer */
elptr = el_init(__progname, stdin, stdout, stderr);
el_set(elptr, EL_EDITOR, "emacs");
el_set(elptr, EL_PROMPT, prompt);
el_set(elptr, EL_HIST, history, hist);
el_source(elptr, NULL);
while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) {
if (debug)
printf("command `%s'\n", line);
history(hist, &hev, H_ENTER, elline);
line = strdup(elline);
if (line == NULL)
errx(1, "out of memory");
cmd_argv = crack(line, &cmd_argc);
if (cmd_argc) {
/*
* el_parse returns -1 to signal that it's not been handled
* internally.
*/
if (el_parse(elptr, cmd_argc, (const char **)cmd_argv) != -1)
continue;
known = 0;
for (cmdp = cmds; cmdp->cmd; cmdp++) {
if (!strcmp(cmdp->cmd, cmd_argv[0])) {
if (cmd_argc >= cmdp->minargc &&
cmd_argc <= cmdp->maxargc)
rval = (*cmdp->handler)(cmd_argc,
cmd_argv);
else
rval = argcount(cmdp,
cmd_argc, cmd_argv);
known = 1;
break;
}
}
if (!known) {
warnx("unknown command `%s'", cmd_argv[0]);
rval = 1;
}
} else
rval = 0;
free(line);
if (rval < 0)
return rval;
if (rval)
warnx("rval was %d", rval);
}
el_end(elptr);
history_end(hist);
return rval;
}
/*
* Command parser.
*/
void
cmdscanner(int top)
{
struct cmd *c;
int num;
HistEvent hev;
if (!top && !editing)
(void)putc('\n', ttyout);
for (;;) {
if (!editing) {
if (fromatty) {
fputs(prompt(), ttyout);
(void)fflush(ttyout);
}
if (fgets(line, sizeof(line), stdin) == NULL)
quit(0, 0);
num = strlen(line);
if (num == 0)
break;
if (line[--num] == '\n') {
if (num == 0)
break;
line[num] = '\0';
} else if (num == sizeof(line) - 2) {
fputs("sorry, input line too long.\n", ttyout);
while ((num = getchar()) != '\n' && num != EOF)
/* void */;
break;
} /* else it was a line without a newline */
} else {
const char *buf;
cursor_pos = NULL;
if ((buf = el_gets(el, &num)) == NULL || num == 0)
quit(0, 0);
if (buf[--num] == '\n') {
if (num == 0)
break;
}
if (num >= sizeof(line)) {
fputs("sorry, input line too long.\n", ttyout);
break;
}
memcpy(line, buf, (size_t)num);
line[num] = '\0';
history(hist, &hev, H_ENTER, buf);
}
makeargv();
if (margc == 0)
continue;
c = getcmd(margv[0]);
if (c == (struct cmd *)-1) {
fputs("?Ambiguous command.\n", ttyout);
continue;
}
if (c == 0) {
/*
* Give editline(3) a shot at unknown commands.
* XXX - bogus commands with a colon in
* them will not elicit an error.
*/
if (editing &&
el_parse(el, margc, (const char **)margv) != 0)
fputs("?Invalid command.\n", ttyout);
continue;
}
if (c->c_conn && !connected) {
fputs("Not connected.\n", ttyout);
continue;
}
confirmrest = 0;
(*c->c_handler)(margc, margv);
if (bell && c->c_bell)
(void)putc('\007', ttyout);
if (c->c_handler != help)
break;
}
(void)signal(SIGINT, (sig_t)intr);
(void)signal(SIGPIPE, (sig_t)lostpeer);
}
/*
* Command parser.
*/
void
cmdscanner(void)
{
struct cmd *c;
char *p;
#ifndef NO_EDITCOMPLETE
int ch;
#endif
size_t num;
for (;;) {
#ifndef NO_EDITCOMPLETE
if (!editing) {
#endif /* !NO_EDITCOMPLETE */
if (fromatty) {
fputs(prompt(), ttyout);
p = rprompt();
if (*p)
fprintf(ttyout, "%s ", p);
}
(void)fflush(ttyout);
num = getline(stdin, line, sizeof(line), NULL);
switch (num) {
case -1: /* EOF */
case -2: /* error */
if (fromatty)
putc('\n', ttyout);
quit(0, NULL);
/* NOTREACHED */
case -3: /* too long; try again */
fputs("Sorry, input line is too long.\n",
ttyout);
continue;
case 0: /* empty; try again */
continue;
default: /* all ok */
break;
}
#ifndef NO_EDITCOMPLETE
} else {
const char *buf;
HistEvent ev;
cursor_pos = NULL;
buf = el_gets(el, &ch);
num = ch;
if (buf == NULL || num == 0) {
if (fromatty)
putc('\n', ttyout);
quit(0, NULL);
}
if (num >= sizeof(line)) {
fputs("Sorry, input line is too long.\n",
ttyout);
break;
}
memcpy(line, buf, num);
if (line[--num] == '\n') {
line[num] = '\0';
if (num == 0)
break;
}
history(hist, &ev, H_ENTER, buf);
}
#endif /* !NO_EDITCOMPLETE */
makeargv();
if (margc == 0)
continue;
c = getcmd(margv[0]);
if (c == (struct cmd *)-1) {
fputs("?Ambiguous command.\n", ttyout);
continue;
}
if (c == NULL) {
#if !defined(NO_EDITCOMPLETE)
/*
* attempt to el_parse() unknown commands.
* any command containing a ':' would be parsed
* as "[prog:]cmd ...", and will result in a
* false positive if prog != "ftp", so treat
* such commands as invalid.
*/
if (strchr(margv[0], ':') != NULL ||
el_parse(el, margc, (const char **)margv) != 0)
#endif /* !NO_EDITCOMPLETE */
fputs("?Invalid command.\n", ttyout);
continue;
}
if (c->c_conn && !connected) {
fputs("Not connected.\n", ttyout);
continue;
}
confirmrest = 0;
margv[0] = c->c_name;
(*c->c_handler)(margc, margv);
if (bell && c->c_bell)
(void)putc('\007', ttyout);
if (c->c_handler != help)
break;
}
(void)xsignal(SIGINT, intr);
(void)xsignal(SIGPIPE, lostpeer);
}
int el_parse_from_string (stralloc *sa, char const *s)
{
return el_parse(sa, &next, &s) ;
}
