/*
* This routine rebuilds the text for the
* list buffers command. Return pointer
* to new list if everything works.
* Return NULL if there is an error (if
* there is no memory).
*/
static struct buffer *
makelist(void)
{
int w = ncol / 2;
struct buffer *bp, *blp;
struct line *lp;
if ((blp = bfind("*Buffer List*", TRUE)) == NULL)
return (NULL);
if (bclear(blp) != TRUE)
return (NULL);
blp->b_flag &= ~BFCHG; /* Blow away old. */
blp->b_flag |= BFREADONLY;
listbuf_ncol = ncol; /* cache ncol for listbuf_goto_buffer */
if (addlinef(blp, "%-*s%s", w, " MR Buffer", "Size File") == FALSE ||
addlinef(blp, "%-*s%s", w, " -- ------", "---- ----") == FALSE)
return (NULL);
for (bp = bheadp; bp != NULL; bp = bp->b_bufp) {
RSIZE nbytes;
nbytes = 0; /* Count bytes in buf. */
if (bp != blp) {
lp = bfirstlp(bp);
while (lp != bp->b_headp) {
nbytes += llength(lp) + 1;
lp = lforw(lp);
}
if (nbytes)
nbytes--; /* no bonus newline */
}
if (addlinef(blp, "%c%c%c %-*.*s%c%-6d %-*s",
(bp == curbp) ? '.' : ' ', /* current buffer ? */
((bp->b_flag & BFCHG) != 0) ? '*' : ' ', /* changed ? */
((bp->b_flag & BFREADONLY) != 0) ? ' ' : '*',
w - 5, /* four chars already written */
w - 5, /* four chars already written */
bp->b_bname, /* buffer name */
strlen(bp->b_bname) < w - 5 ? ' ' : '$', /* truncated? */
nbytes, /* buffer size */
w - 7, /* seven chars already written */
bp->b_fname) == FALSE)
return (NULL);
}
blp->b_dotp = bfirstlp(blp); /* put dot at beginning of
* buffer */
blp->b_doto = 0;
return (blp); /* All done */
}
/* ARGSUSED */
int
apropos_command(int f, int n)
{
struct buffer *bp;
struct list *fnames, *el;
char string[32];
if (eread("apropos: ", string, sizeof(string), EFNUL | EFNEW) == NULL)
return (ABORT);
/* FALSE means we got a 0 character string, which is fine */
bp = bfind("*help*", TRUE);
if (bclear(bp) == FALSE)
return (FALSE);
fnames = complete_function_list("");
for (el = fnames; el != NULL; el = el->l_next) {
char buf[32];
if (strstr(el->l_name, string) == NULL)
continue;
buf[0] = '\0';
findbind(fundamental_map, name_function(el->l_name),
buf, sizeof(buf));
if (addlinef(bp, "%-32s%s", el->l_name, buf) == FALSE) {
free_file_list(fnames);
return (FALSE);
}
}
free_file_list(fnames);
return (popbuftop(bp, WNONE));
}
static int
showall(struct buffer *bp, KEYMAP *map, char *prefix)
{
KEYMAP *newmap;
char buf[80], keybuf[16];
PF fun;
int c;
if (addline(bp, "") == FALSE)
return (FALSE);
/* XXX - 256 ? */
for (c = 0; c < 256; c++) {
fun = doscan(map, c, &newmap);
if (fun == rescan || fun == selfinsert)
continue;
getkeyname(buf, sizeof(buf), c);
(void)snprintf(keybuf, sizeof(keybuf), "%s%s ", prefix, buf);
if (fun == NULL) {
if (showall(bp, newmap, keybuf) == FALSE)
return (FALSE);
} else {
if (addlinef(bp, "%-16s%s", keybuf,
function_name(fun)) == FALSE)
return (FALSE);
}
}
return (TRUE);
}
/* ARGSUSED */
int
wallchart(int f, int n)
{
int m;
struct buffer *bp;
bp = bfind("*help*", TRUE);
if (bclear(bp) != TRUE)
/* clear it out */
return (FALSE);
bp->b_flag |= BFREADONLY;
for (m = curbp->b_nmodes; m > 0; m--) {
if ((addlinef(bp, "Local keybindings for mode %s:",
curbp->b_modes[m]->p_name) == FALSE) ||
(showall(bp, curbp->b_modes[m]->p_map, "") == FALSE) ||
(addline(bp, "") == FALSE))
return (FALSE);
}
if ((addline(bp, "Global bindings:") == FALSE) ||
(showall(bp, fundamental_map, "") == FALSE))
return (FALSE);
return (popbuftop(bp, WNONE));
}
struct buffer *
compile_mode(const char *name, const char *command)
{
struct buffer *bp;
FILE *fpipe;
char *buf;
size_t len;
int ret, n;
char cwd[NFILEN], qcmd[NFILEN];
char timestr[NTIME];
time_t t;
n = snprintf(qcmd, sizeof(qcmd), "%s 2>&1", command);
if (n < 0 || n >= sizeof(qcmd))
return (NULL);
bp = bfind(name, TRUE);
if (bclear(bp) != TRUE)
return (NULL);
if (getbufcwd(bp->b_cwd, sizeof(bp->b_cwd)) != TRUE)
return (NULL);
addlinef(bp, "cd %s", bp->b_cwd);
addline(bp, qcmd);
addline(bp, "");
if (getcwd(cwd, sizeof(cwd)) == NULL)
panic("Can't get current directory!");
if (chdir(bp->b_cwd) == -1) {
dobeep();
ewprintf("Can't change dir to %s", bp->b_cwd);
return (NULL);
}
if ((fpipe = popen(qcmd, "r")) == NULL) {
dobeep();
ewprintf("Problem opening pipe");
return (NULL);
}
/*
* We know that our commands are nice and the last line will end with
* a \n, so we don't need to try to deal with the last line problem
* in fgetln.
*/
while ((buf = fgetln(fpipe, &len)) != NULL) {
buf[len - 1] = '\0';
addline(bp, buf);
}
ret = pclose(fpipe);
t = time(NULL);
strftime(timestr, sizeof(timestr), "%a %b %e %T %Y", localtime(&t));
addline(bp, "");
if (ret != 0)
addlinef(bp, "Command exited abnormally with code %d"
" at %s", ret, timestr);
else
addlinef(bp, "Command finished at %s", timestr);
bp->b_dotp = bfirstlp(bp);
bp->b_modes[0] = name_mode("fundamental");
bp->b_modes[1] = name_mode("compile");
bp->b_nmodes = 1;
compile_buffer = bp;
if (chdir(cwd) == -1) {
dobeep();
ewprintf("Can't change dir back to %s", cwd);
return (NULL);
}
return (bp);
}
/* ARGSUSED */
int
d_shell_command(int f, int n)
{
#ifdef MONA
ewprintf("shell command is not supported");
return (FALSE);
#else
char command[512], fname[MAXPATHLEN], buf[BUFSIZ], *bufp, *cp;
int infd, fds[2];
pid_t pid;
struct sigaction olda, newa;
struct buffer *bp;
struct mgwin *wp;
FILE *fin;
bp = bfind("*Shell Command Output*", TRUE);
if (bclear(bp) != TRUE)
return (ABORT);
if (d_makename(curwp->w_dotp, fname, sizeof(fname)) != FALSE) {
ewprintf("bad line");
return (ABORT);
}
command[0] = '\0';
if ((bufp = eread("! on %s: ", command, sizeof(command), EFNEW,
basename(fname))) == NULL)
return (ABORT);
infd = open(fname, O_RDONLY);
if (infd == -1) {
ewprintf("Can't open input file : %s", strerror(errno));
return (FALSE);
}
if (pipe(fds) == -1) {
ewprintf("Can't create pipe : %s", strerror(errno));
close(infd);
return (FALSE);
}
newa.sa_handler = reaper;
newa.sa_flags = 0;
if (sigaction(SIGCHLD, &newa, &olda) == -1) {
close(infd);
close(fds[0]);
close(fds[1]);
return (ABORT);
}
pid = fork();
switch (pid) {
case -1:
ewprintf("Can't fork");
return (ABORT);
case 0:
close(fds[0]);
dup2(infd, STDIN_FILENO);
dup2(fds[1], STDOUT_FILENO);
dup2(fds[1], STDERR_FILENO);
execl("/bin/sh", "sh", "-c", bufp, (char *)NULL);
exit(1);
break;
default:
close(infd);
close(fds[1]);
fin = fdopen(fds[0], "r");
if (fin == NULL) /* "r" is surely a valid mode! */
panic("can't happen");
while (fgets(buf, sizeof(buf), fin) != NULL) {
cp = strrchr(buf, '\n');
if (cp == NULL && !feof(fin)) { /* too long a line */
int c;
addlinef(bp, "%s...", buf);
while ((c = getc(fin)) != EOF && c != '\n')
;
continue;
} else if (cp)
*cp = '\0';
addline(bp, buf);
}
fclose(fin);
close(fds[0]);
break;
}
wp = popbuf(bp);
if (wp == NULL)
return (ABORT); /* XXX - free the buffer?? */
curwp = wp;
curbp = wp->w_bufp;
if (sigaction(SIGCHLD, &olda, NULL) == -1)
ewprintf("Warning, couldn't reset previous signal handler");
return (TRUE);
#endif
}
