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cmd.c
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cmd.c
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#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
#if HAVE_FCNTL_H
# include <fcntl.h>
#endif
#include "deco.h"
#include "dir.h"
#include "scr.h"
#include "env.h"
#define SHELL (usecshell ? cshname : shname)
#define ABSSHELL (usecshell ? cshabsname : shabsname)
#define MAXARGV 400
static char shname [] = "sh";
static char cshname [] = "csh";
static char shabsname [] = "/bin/sh";
static char cshabsname [] = "/bin/csh";
int usecshell;
int useredit, userview;
int showhidden = 1;
char editname [40], viewname [40];
static int metas (char *s);
static int cmpfil (char *d1, char *f1, char *d2, char *f2);
char *sysmsg [] = {
0,
"Hangup", /* SIGHUP 1 hangup */
"Interrupt", /* SIGINT 2 interrupt (rubout) */
"Quit", /* SIGQUIT 3 quit */
"Illegal instruction", /* SIGILL 4 illegal instruction */
"Trace/BPT trap", /* SIGTRAP 5 trace trap */
"IOT trap", /* SIGIOT 6 IOT instruction */
"EMT trap", /* SIGEMT 7 EMT instruction */
"Floating exception", /* SIGFPE 8 floating point exception */
"Killed", /* SIGKILL 9 kill */
"Bus error", /* SIGBUS 10 bus error */
"Memory fault", /* SIGSEGV 11 segmentation violation */
"Bad system call", /* SIGSYS 12 bad argument to system call */
"Broken pipe", /* SIGPIPE 13 write on a pipe with no one to read it */
"Alarm call", /* SIGALRM 14 alarm clock */
"Terminated", /* SIGTERM 15 software termination signal from kill */
};
int numsysmsg = (sizeof sysmsg / sizeof sysmsg[0]);
/* ARGSUSED */
void directory (int k, int sk)
{
setdir (cur, sk == 'r' ? "/" : home);
}
void switchalign (int k)
{
struct dir *d = k=='l' ? &left : &right;
d->alignext ^= 1;
}
void switchcmdreg ()
{
cmdreg ^= 1;
}
void switchhidden ()
{
showhidden ^= 1;
setdir (cur == &left ? &right : &left, 0);
setdir (cur, 0);
}
void switchpanels ()
{
cur = cur==&left ? &right : &left;
chdir (cur->cwd);
}
void setstatus ()
{
if (cur == &left)
right.status ^= 1;
else
left.status ^= 1;
}
void fullscreen (int k, int sk)
{
VClearBox (1, 0, LINES-2, 80);
if (H == LINES/2-1)
H = LINES-7;
else
H = LINES/2-1;
while (left.topfile + PAGELEN (&left) <= left.curfile)
left.topfile += H;
while (right.topfile + PAGELEN (&right) <= right.curfile)
right.topfile += H;
}
void redraw ()
{
VRedraw ();
}
void reread (int k, int sk)
{
struct dir *d = k=='l' ? &left : &right;
register char *p;
if (! (p = getwstring (50, d->cwd, " Change directory ", "Change directory to")))
return;
if (! strcmp (p, d->cwd))
setdir (d, 0);
else if (chdir (p) < 0)
error ("Cannot chdir to %s", p);
else
setdir (d, ".");
chdir (cur->cwd);
}
void setdwid ()
{
VClearBox (1, 0, LINES-2, 80);
widewin ^= 1;
while (left.topfile + PAGELEN (&left) <= left.curfile)
left.topfile += H;
while (right.topfile + PAGELEN (&right) <= right.curfile)
right.topfile += H;
}
void setfull (int k, int sk)
{
register struct dir *c = k=='l' ? &left : &right;
switch (sk) {
case 'b':
c->view = VIEW_BRIEF;
break;
case 'l':
c->view = VIEW_LONG;
break;
case 'w':
c->view = VIEW_WIDE;
break;
case 'f':
c->view = VIEW_FULL;
if (! widewin)
setdwid ();
break;
case 'i':
c->view = VIEW_INFO;
if (! widewin)
setdwid ();
break;
}
while (c->topfile + PAGELEN (c) <= c->curfile)
c->topfile += H;
}
void setsort (int k, int sk)
{
register struct dir *c = k=='l' ? &left : &right;
switch (sk) {
case 'n': c->sort = SORTNAME; break;
case 'x': c->sort = SORTEXT; break;
case 't': c->sort = SORTTIME; break;
case 'z': c->sort = SORTSIZE; break;
case 'u': c->sort = SORTSKIP; break;
}
setdir (c, 0);
chdir (cur->cwd);
}
void settypesort (int k)
{
register struct dir *c = k=='l' ? &left : &right;
c->typesort ^= 1;
setdir (c, 0);
chdir (cur->cwd);
}
void setrevsort (int k)
{
register struct dir *c = k=='l' ? &left : &right;
c->revsort ^= 1;
setdir (c, 0);
chdir (cur->cwd);
}
void setviewname ()
{
register char *p;
switch (getchoice (0, " View ", "Select which viewer to use for F3:",
0, " Built-in ", " External ", 0)) {
case 0:
userview = 0;
default:
return;
case 1:
break;
}
if (! (p = getstring (40, viewname, " View ", "Viewer to use")))
return;
strncpy (viewname, p, 40);
viewname [39] = 0;
userview = 1;
}
void setshellname ()
{
switch (getchoice (0, " Shell ", "Select which shell to use:",
0, " Shell ", " Cshell ", 0)) {
case 0:
usecshell = 0;
break;
case 1:
usecshell = 1;
break;
}
}
void seteditname ()
{
register char *p;
switch (getchoice (0, " Edit ", "Select which editor to use for F4:",
0, " Built-in ", " External ", 0)) {
case 0:
useredit = 0;
default:
return;
case 1:
break;
}
if (! (p = getstring (40, editname, " Edit ", "Editor to use")))
return;
strncpy (editname, p, 40);
editname [39] = 0;
useredit = 1;
}
void view ()
{
char buf [NAMESZ];
register char *name = cur->cat[cur->curfile].name;
register d;
struct stat st;
if (userview) {
snprintf (buf, sizeof(buf), "%s %s", viewname, name);
VRestore ();
syscmd (buf);
VReopen ();
VRedraw ();
setdir (cur == &left ? &right : &left, 0);
setdir (cur, 0);
return;
}
if (stat (name, &st) < 0 )
{
error ("Cannot stat %s", name);
return;
}
if (st.st_size > 100*1024*1024)
{
error ("File too big", name);
return;
}
if ((d = open (name, 0)) < 0) {
error ("Cannot open %s", name);
return;
}
viewfile (d, name);
close (d);
}
void viewinfo ()
{
char buf [NAMESZ];
char name [NAMESZ];
register d;
sprintf (name, sizeof(name), "%s/.info/%s", cur->cwd, cur->cat[cur->curfile].name);
if (userview) {
snprintf (buf, sizeof(buf), "%s %s", viewname, name);
VRestore ();
syscmd (buf);
VReopen ();
VRedraw ();
setdir (cur == &left ? &right : &left, 0);
setdir (cur, 0);
return;
}
if ((d = open (name, 0)) < 0) {
error ("Cannot open %s", name);
return;
}
viewfile (d, name);
close (d);
}
static void editfnam (char *name)
{
register d;
register char *p;
char buf [NAMESZ];
struct stat st;
if (stat (name, &st) >= 0) {
if ((st.st_mode & S_IFMT) != S_IFREG) {
error ("Cannot edit special files");
return;
}
} else {
d = creat (name, 0644);
if (d < 0) {
error ("Cannot create %s", name);
return;
}
close (d);
}
if (useredit) {
snprintf (buf, sizeof(buf), "%s %s", editname, name);
VRestore ();
syscmd (buf);
VReopen ();
VRedraw ();
setdir (cur == &left ? &right : &left, 0);
setdir (cur, 0);
return;
}
if ((d = open (name, 2)) < 0) {
error ("Cannot open %s for writing", name);
return;
}
/* skip directory name */
for (p=name; *p; ++p);
for (; p>=name && *p!='/'; --p);
editfile (d, name, p+1);
close (d);
}
void edit ()
{
register char *name = cur->cat[cur->curfile].name;
char namebuf [NAMESZ];
if (strcmp (name, ".") == 0) {
name = getstring (40, 0, " Edit ",
"Enter name of file to edit");
if (! name)
return;
strncpy (namebuf, sizeof(namebuf), name);
editfnam (namebuf);
return;
}
editfnam (name);
}
void editinfo ()
{
char name [NAMESZ];
sprintf (name, "%s/.info/%s", cur->cwd, cur->cat[cur->curfile].name);
editfnam (name);
}
void menuedit ()
{
char buf [NAMESZ];
switch (getchoice (0, " Menu Edit ", "Select which menu to edit:",
0, " Current menu ", " Home menu ", 0)) {
case 0:
editfnam (".menu");
break;
case 1:
snprintf (buf, sizeof(buf), "%s/.menu", home);
editfnam (buf);
break;
}
}
void extedit ()
{
char buf [NAMESZ];
snprintf (buf, sizeof(buf), "%s/.deco", home);
editfnam (buf);
}
void quit ()
{
int choice;
choice = getchoice (ppid == 1, " Demos Commander ",
ppid == 1 ? "Do you want to log out ?" :
"Do you want to quit the Demos Commander ?",
0, " Yes ", " No ", " Exec shell ");
if (choice == 0)
quitdeco ();
if (choice == 2) {
/* exec shell */
VClear ();
VSync ();
VClose ();
execle (ABSSHELL, SHELL, "-i", 0, EnvVector);
exit (0);
}
/* else stay here */
}
void quitdeco ()
{
VMove (LINES-1, 0);
VClearLine ();
VSync ();
VClose ();
exit (0);
}
void swappanels ()
{
struct dir dir;
int ro, lo;
ro = right.shortcwd - right.cwd;
lo = left.shortcwd - left.cwd;
dir = left;
left = right;
right = dir;
left.basecol = 0;
right.basecol = 40;
right.shortcwd = lo + right.cwd;
left.shortcwd = ro + left.cwd;
cur = (cur == &left ? &right : &left);
}
void shell ()
{
/* run shell */
VClear ();
VSync ();
VRestore ();
runl (0, ABSSHELL, SHELL, "-i", 0);
VReopen ();
VClear ();
setdir (cur == &left ? &right : &left, 0);
setdir (cur, 0);
}
int tagged ()
{
register i, n;
for (i=n=0; i<cur->num; ++i)
if (cur->cat[i].tag)
++n;
return (n);
}
void copy ()
{
char buf [NAMESZ];
char *name;
register struct file *p;
register c;
int done, all, ch;
int exd, exf;
c = tagged ();
if (c) {
/* copy group of files */
sprintf (buf, "Copy %d file%s to", c, c>1 ? "s" : "");
if (! (name = getstring (60, (cur==&left?&right:&left)->cwd,
" Copy ", buf)))
return;
runset (name);
exd = exist (name);
all = 0;
for (p=cur->cat; p<cur->cat+cur->num; ++p)
if (p->tag) {
sprintf (buf, "%s/%s", name, p->name);
exf = exd=='d' ? exist (buf) : 0;
if (exd=='f' || exf=='f') {
if (! all) {
ch = getchoice (1, " Copy ", "File exists",
exf=='f' ? buf : name,
" Overwrite ", " All ", " Cancel ");
switch (ch) {
case 2: /* cancel */
--c;
continue;
case 1: /* all */
all = 1;
case 0: /* all */
break;
default:
runcancel ();
return;
}
}
} else if (exf == 'd') {
error ("%s is a directory", buf);
continue;
}
runarg (p->name);
p->tag = 0;
}
if (c <= 0) {
runcancel ();
return;
}
message (" Copy ", "Copying %d file%s to %s ...", c, c>1 ? "s" : "", name);
done = rundone ("/bin/cp", "cp", "-f", "-p");
if (done) {
endmesg ();
message (" Copy ", "Done");
} else
error ("Error while copying %d file%s to %s",
c, c>1 ? "s" : "", name);
endmesg ();
} else if ((c = (p = &cur->cat[cur->curfile])->mode & S_IFMT) == S_IFDIR) {
/* copying directory */
} else if (c == S_IFREG) {
/* copy regular file */
sprintf (buf, "Copy \"%s\" to", p->name);
if (! (name = getstring (60, (cur==&left?&right:&left)->cwd, " Copy ", buf)))
return;
exd = exist (name);
sprintf (buf, "%s/%s", name, p->name);
exf = exd=='d' ? exist (buf) : 0;
if (exd=='f' || exf=='f') {
if (getchoice (1, " Copy ", "File exists",
exf=='f' ? buf : name,
" Overwrite ", " Cancel ", 0))
return;
} else if (exf == 'd') {
error ("%s is a directory", buf);
return;
}
if (runl (1, "/bin/cp", "cp", "-f", "-p", p->name, name, 0)) {
error ("Cannot copy %s to %s", p->name, name);
return;
}
}
setdir (cur == &left ? &right : &left, 0);
setdir (cur, 0);
}
void makelink ()
{
char buf [NAMESZ];
char *name;
register struct file *p;
register c;
int done;
int exd, exf;
c = tagged ();
if (c) {
/* link group of files */
sprintf (buf, "Link %d file%s to", c, c>1 ? "s" : "");
if (! (name = getstring (60, (cur==&left?&right:&left)->cwd,
" Link ", buf)))
return;
runset (name);
exd = exist (name);
for (p=cur->cat; p<cur->cat+cur->num; ++p)
if (p->tag) {
sprintf (buf, "%s/%s", name, p->name);
exf = exd=='d' ? exist (buf) : 0;
if (exd=='f' || exf=='f') {
if (getchoice (1, " Link ", "File exists",
exf=='f' ? buf : name,
" Overwrite ", " Cancel ", 0))
continue;
} else if (exf == 'd') {
error ("%s is a directory", buf);
continue;
}
runarg (p->name);
p->tag = 0;
}
message (" Link ", "Linking %d file%s to %s ...", c, c>1 ? "s" : "", name);
done = rundone ("/bin/ln", "ln", "-f", 0);
if (done) {
endmesg ();
message (" Link ", "Done");
} else
error ("Error while linking %d file%s to %s",
c, c>1 ? "s" : "", name);
endmesg ();
} else if ((c = (p = &cur->cat[cur->curfile])->mode & S_IFMT) == S_IFDIR) {
/* linking directory */
} else if (c == S_IFREG) {
/* link regular file */
sprintf (buf, "Link \"%s\" to", p->name);
if (! (name = getstring (60, (cur==&left?&right:&left)->cwd, " Link ", buf)))
return;
exd = exist (name);
sprintf (buf, "%s/%s", name, p->name);
exf = exd=='d' ? exist (buf) : 0;
if (exd=='f' || exf=='f') {
if (getchoice (1, " Link ", "File exists",
exf=='f' ? buf : name,
" Overwrite ", " Cancel ", 0))
return;
} else if (exf == 'd') {
error ("%s is a directory", buf);
return;
}
if (runl (1, "/bin/ln", "ln", "-f", p->name, name, 0)) {
error ("Cannot link %s to %s", p->name, name);
return;
}
}
setdir (cur == &left ? &right : &left, 0);
setdir (cur, 0);
}
#ifdef S_IFLNK
void makeslink ()
{
char buf [NAMESZ];
char *name;
register struct file *p;
register c;
int done;
int exd, exf;
c = tagged ();
if (c) {
/* symlink group of files */
sprintf (buf, "Symlink %d file%s to", c, c>1 ? "s" : "");
if (! (name = getstring (60, (cur==&left?&right:&left)->cwd,
" Symlink ", buf)))
return;
runset (name);
exd = exist (name);
for (p=cur->cat; p<cur->cat+cur->num; ++p)
if (p->tag) {
sprintf (buf, "%s/%s", name, p->name);
exf = exd=='d' ? exist (buf) : 0;
if (exd=='f' || exf=='f') {
if (getchoice (1, " Symlink ", "File exists",
exf=='f' ? buf : name,
" Overwrite ", " Cancel ", 0))
continue;
} else if (exf == 'd') {
error ("%s is a directory", buf);
continue;
}
runarg (p->name);
p->tag = 0;
}
message (" Symlink ", "Linking %d file%s to %s ...", c, c>1 ? "s" : "", name);
done = rundone ("/bin/ln", "ln", "-s", "-f");
if (done) {
endmesg ();
message (" Symlink ", "Done");
} else
error ("Error while linking %d file%s to %s",
c, c>1 ? "s" : "", name);
endmesg ();
} else if ((c = (p = &cur->cat[cur->curfile])->mode & S_IFMT) == S_IFDIR) {
/* symlinking directory */
} else if (c == S_IFREG) {
/* symlink regular file */
sprintf (buf, "Symlink \"%s\" to", p->name);
if (! (name = getstring (60, (cur==&left?&right:&left)->cwd, " Symlink ", buf)))
return;
exd = exist (name);
sprintf (buf, "%s/%s", name, p->name);
exf = exd=='d' ? exist (buf) : 0;
if (exd=='f' || exf=='f') {
if (getchoice (1, " Symlink ", "File exists",
exf=='f' ? buf : name,
" Overwrite ", " Cancel ", 0))
return;
} else if (exf == 'd') {
error ("%s is a directory", buf);
return;
}
if (runl (1, "/bin/ln", "ln", "-s", "-f", p->name, name, 0)) {
error ("Cannot symlink %s to %s", p->name, name);
return;
}
}
setdir (cur == &left ? &right : &left, 0);
setdir (cur, 0);
}
#endif /* S_IFLNK */
void renmove ()
{
char buf [MAXPATHLEN+20];
char *name = 0;
register struct file *p;
register c;
int done, all, ch;
int exd, exf;
c = tagged ();
if (c) {
/* move group of files */
sprintf (buf, "Rename or move %d file%s to", c, c>1 ? "s" : "");
if (! (name = getstring (60, (cur==&left?&right:&left)->cwd,
" Rename ", buf)))
return;
runset (name);
exd = exist (name);
all = 0;
for (p=cur->cat; p<cur->cat+cur->num; ++p)
if (p->tag) {
sprintf (buf, "%s/%s", name, p->name);
exf = exd=='d' ? exist (buf) : 0;
if (exd=='f' || exf=='f') {
if (! all) {
ch = getchoice (1, " Rename ", "File exists",
exf=='f' ? buf : name,
" Overwrite ", " All ", " Cancel ");
switch (ch) {
default:
case 2: /* cancel */
continue;
case 1: /* all */
all = 1;
}
}
} else if (exf == 'd') {
error ("%s is a directory", buf);
continue;
}
runarg (p->name);
}
message (" Move ", "Moving %d file%s to %s ...", c, c>1 ? "s" : "", name);
done = rundone ("/bin/mv", "mv", "-f", 0);
if (done) {
endmesg ();
message (" Move ", "Done");
} else
error ("Error while moving %d file%s to %s",
c, c>1 ? "s" : "", name);
endmesg ();
name = 0;
} else if ((c = (p = &cur->cat[cur->curfile])->mode & S_IFMT) == S_IFDIR) {
/* rename directory */
sprintf (buf, "Rename \"%s\" to", strtail (p->name, '/', 60));
if (! (name = getstring (60, (cur==&left?&right:&left)->cwd, " Rename ", buf)))
return;
exd = exist (name);
sprintf (buf, "%s/%s", name, p->name);
exf = exd=='d' ? exist (buf) : 0;
if (exd=='f' || exf=='f') {
if (getchoice (1, " Rename ", "File exists",
exf=='f' ? buf : name,
" Overwrite ", " Cancel ", 0))
return;
} else if (exf == 'd') {
error ("Directory %s exists", buf);
return;
}
if (runl (1, "/bin/mv", "mv", "-f", p->name, name, 0)) {
error ("Cannot move %s to %s", p->name, name);
return;
}
} else if (c == S_IFREG) {
/* move regular file */
sprintf (buf, "Rename or move \"%s\" to", p->name);
if (! (name = getstring (60, (cur==&left?&right:&left)->cwd, " Rename ", buf)))
return;
exd = exist (name);
sprintf (buf, "%s/%s", name, p->name);
exf = exd=='d' ? exist (buf) : 0;
if (exd=='f' || exf=='f') {
if (getchoice (1, " Rename ", "File exists",
exf=='f' ? buf : name,
" Overwrite ", " Cancel ", 0))
return;
} else if (exf == 'd') {
error ("%s is a directory", buf);
return;
}
if (runl (1, "/bin/mv", "mv", "-f", p->name, name, 0)) {
error ("Cannot move %s to %s", p->name, name);
return;
}
}
setdir (cur == &left ? &right : &left, 0);
setdir (cur, 0);
if (name)
findfile (cur, name);
}
void makedir ()
{
register char *p;
if (! (p = getstring (60, 0, " Make directory ", "Create the directory")))
return;
switch (exist (p)) {
default:
case 'f':
error ("File %s exists", p);
break;
case 'd':
error ("Directory %s already exists", p);
break;
case 0:
if (runl (1, "/bin/mkdir", "mkdir", p, 0)) {
error ("Cannot create directory %s", p);
break;
}
setdir (cur == &left ? &right : &left, 0);
setdir (cur, 0);
findfile (cur, p);
break;
}
}
void delete ()
{
char buf [NAMESZ];
register struct file *p;
register c;
c = tagged ();
if (c) {
/* delete group of files */
sprintf (buf, "You have selected %d file%s.", c, c>1 ? "s" : "");
if (getchoice (0, " Delete ", buf, 0, " Delete ", " Cancel ", 0))
return;
sprintf (buf, "You are DELETING %d selected file%s from", c, c>1 ? "s" : "");
if (getchoice (1, " Delete ", buf, cur->cwd, " Ok ", " Cancel ", 0))
return;
for (p=cur->cat; p<cur->cat+cur->num; ++p)
if (p->tag && unlink (p->name) < 0)
error ("Cannot delete %s", p->name);
} else if ((c = (p = &cur->cat[cur->curfile])->mode & S_IFMT) == S_IFDIR) {
/* delete directory */
if (getchoice (0, " Delete ", "Do you wish to delete directory",
p->name, " Delete ", " Cancel ", 0))
return;
if (runl (1, "/bin/rmdir", "rmdir", p->name, 0)) {
error ("Cannot delete directory %s", p->name);
return;
}
} else if (c == S_IFREG) {
/* delete regular file */
if (getchoice (0, " Delete ", "Do you wish to delete",
p->name, " Delete ", " Cancel ", 0))
return;
if (unlink (p->name) < 0) {
error ("Cannot delete %s", p->name);
return;
}
}
setdir (cur == &left ? &right : &left, 0);
setdir (cur, 0);
}
void findname ()
{
register char *s, *q;
register char *p;
register struct file *f;
if (! (p = getwstring (20, "", " Find file ", "Enter file name")) || ! *p)
return;
for (f=cur->cat; f<cur->cat+cur->num; ++f) {
s=p;
q=f->name;
for (;;) {
if (! *s) {
cur->curfile = f - cur->cat;
if (cur->topfile > cur->curfile || cur->topfile + PAGELEN (cur) <= cur->curfile)
cur->topfile = cur->curfile - PAGELEN (cur) + 1;
while (cur->topfile + PAGELEN (cur) - H > cur->curfile)
cur->topfile -= H;
if (cur->topfile < 0)
cur->topfile = 0;
return;
} else if (*s != *q)
break;
++s;
++q;
}
}
error ("File not found");
}
void tagall ()
{
register char *p;
register struct file *f;
static char pat [20];
if (! pat[0])
strcpy (pat, "*");
if (! (p = getwstring (20, pat, " Select ", "Select the files")))
return;
strncpy (pat, p, 20);
pat [19] = 0;
for (f=cur->cat; f<cur->cat+cur->num; ++f)
if ((f->mode & S_IFMT) == (unsigned) S_IFREG &&
(! pat[0] || match (f->name, pat)))
f->tag = 1;
counttag (cur);
}
void untagall ()
{
register char *p;
register struct file *f;
static char pat [20];
if (! pat[0])
strcpy (pat, "*");
if (! (p = getwstring (20, pat, " Unselect ", "Unselect the files")))
return;
strncpy (pat, p, 20);
pat [19] = 0;
for (f=cur->cat; f<cur->cat+cur->num; ++f)
if ((f->mode & S_IFMT) == (unsigned) S_IFREG &&
(! pat[0] || match (f->name, pat)))
f->tag = 0;
counttag (cur);
}
void setpattern (int k)
{
struct dir *d = k=='l' ? &left : &right;
register char *p;
if (! (p = getwstring (20, d->pattern, " Set pattern ", "Set pattern for files")))
return;
strncpy (d->pattern, p, PATSZ);
d->pattern [PATSZ-1] = 0;
setdir (d, 0);
chdir (cur->cwd);
}
void cmpdir ()
{
register struct file *f, *of;
register struct dir *d, *od;
struct file *end, *oend;
int cmp;
d = &left;
od = &right;
end = d->cat + d->num;
oend = od->cat + od->num;
for (of=od->cat; of<oend; ++of)
if ((of->mode & S_IFMT) == (unsigned) S_IFREG)
of->tag = 1;
for (f=d->cat; f<end; ++f)
if ((f->mode & S_IFMT) == (unsigned) S_IFREG)
f->tag = 1;
for (f=d->cat, of=od->cat; of<oend; ++of) {
while ((cmp = compfile (f, of)) < 0)
if (++f >= end)
goto breakloop;
if (! of->tag || ! f->tag)
continue;
if (cmp || f->size != of->size)
continue;
if (cmpfil (d->cwd, f->name, od->cwd, of->name))
f->tag = of->tag = 0;
}
breakloop:
counttag (d);
counttag (od);
}