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/*
* dselect - Debian GNU/Linux package maintenance user interface
* main.cc - main program
*
* Copyright (C) 1994,1995 Ian Jackson <iwj10@cus.cam.ac.uk>
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2,
* or (at your option) any later version.
*
* This is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with dpkg; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <signal.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <errno.h>
#include <unistd.h>
#include <dirent.h>
#include <limits.h>
#include <ctype.h>
#include <assert.h>
#include <curses.h>
#include <term.h>
extern "C" {
#include <config.h>
#include <dpkg.h>
#include <dpkg-db.h>
#include <version.h>
#include <myopt.h>
}
#include "dselect.h"
#include "bindings.h"
#include "pkglist.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
const char thisname[]= DSELECT;
const char printforhelp[]= N_("Type dselect --help for help.");
modstatdb_rw readwrite;
const char *admindir= ADMINDIR;
FILE *debug;
int expertmode = 0;
static keybindings packagelistbindings(packagelist_kinterps,packagelist_korgbindings);
struct menuentry {
const char *option;
const char *menuent;
urqfunction *fn;
};
static const menuentry menuentries[]= {
{ N_("access"), N_("Choose the access method to use."), &urq_setup },
{ N_("update"), N_("Update list of available packages, if possible."), &urq_update },
{ N_("select"), N_("Request which packages you want on your system."), &urq_list },
{ N_("install"), N_("Install and upgrade wanted packages."), &urq_install },
{ N_("config"), N_("Configure any packages that are unconfigured."), &urq_config },
{ N_("remove"), N_("Remove unwanted software."), &urq_remove },
{ N_("quit"), N_("Quit dselect."), &urq_quit },
{ N_("menu"), 0, &urq_menu },
{ 0 }
};
static const char programdesc[]=
N_("Debian GNU/Linux `%s' package handling frontend.");
static const char copyrightstring[]= N_(
"Version %s. Copyright (C) 1994-1996 Ian Jackson. This is\n"
"free software; see the GNU General Public Licence version 2 or later for\n"
"copying conditions. There is NO warranty. See dselect --licence for details.\n");
static void printversion(void) {
if (fprintf(stdout,gettext(programdesc),DSELECT) == EOF) werr("stdout");
if (fprintf(stdout,"\n") == EOF) werr("stdout");
if (fprintf(stdout,gettext(copyrightstring), DPKG_VERSION_ARCH) == EOF) werr("stdout");
}
static void usage(void) {
if (!fputs(
_("Usage: dselect [options]\n"
" dselect [options] action ...\n"
"Options: --admindir <directory> (default is /var/lib/dpkg)\n"
" --help --version --licence --expert --debug <file> | -D<file>\n"
"Actions: access update select install config remove quit menu\n"),
stdout)) werr("stdout");
}
#if CAN_RESIZE
/*
* This uses functions that are "unsafe", but it seems to work on SunOS and
* Linux. The 'wrefresh(curscr)' is needed to force the refresh to start from
* the top of the screen -- some xterms mangle the bitmap while resizing.
*
* Borrowed from the ncurses example view.c
*/
static RETSIGTYPE adjust(int sig)
{
if (waiting || sig == 0) {
struct winsize size;
if (ioctl(fileno(stdout), TIOCGWINSZ, &size) == 0) {
resizeterm(size.ws_row, size.ws_col);
wrefresh(curscr); /* Linux needs this */
show_all();
}
interrupted = FALSE;
} else {
interrupted = TRUE;
}
(void) signal(SIGWINCH, adjust); /* some systems need this */
}
#endif /* CAN_RESIZE */
/* These are called by C code, so need to have C calling convention */
extern "C" {
static void helponly(const struct cmdinfo*, const char*) {
usage(); exit(0);
}
static void versiononly(const struct cmdinfo*, const char*) {
printversion(); exit(0);
}
static void setdebug(const struct cmdinfo*, const char *v) {
debug= fopen(v,"a");
if (!debug) ohshite(_("couldn't open debug file `%.255s'\n"),v);
setvbuf(debug,0,_IONBF,0);
}
static void setexpert() {
expertmode = 1;
}
} /* End of extern "C" */
static const struct cmdinfo cmdinfos[]= {
{ "admindir", 0, 1, 0, &admindir, 0 },
{ "debug", 'D', 1, 0, 0, setdebug },
{ "expert", 'E', 0, 0, 0, setexpert },
{ "help", 'h', 0, 0, 0, helponly },
{ "version", 0, 0, 0, 0, versiononly },
{ "licence", 0, 0, 0, 0, showcopyright }, /* UK spelling */
{ "license", 0, 0, 0, 0, showcopyright }, /* US spelling */
{ 0, 0 }
};
static int cursesareon= 0;
void curseson() {
if (!cursesareon) {
const char *cup, *smso;
initscr();
cup= tigetstr("cup");
smso= tigetstr("smso");
if (!cup || !smso) {
endwin();
if (!cup)
fputs(_("Terminal does not appear to support cursor addressing.\n"),stderr);
if (!smso)
fputs(_("Terminal does not appear to support highlighting.\n"),stderr);
fputs(_("Set your TERM variable correctly, use a better terminal,\n"
"or make do with the per-package management tool " DPKG ".\n"),stderr);
ohshit(_("terminal lacks necessary features, giving up"));
}
}
cursesareon= 1;
}
void cursesoff() {
if (cursesareon) {
clear();
refresh();
endwin();
}
cursesareon=0;
}
extern void *operator new(size_t size) {
void *p;
p= m_malloc(size);
assert(p);
return p;
}
extern void operator delete(void *p) {
free(p);
}
urqresult urq_list(void) {
readwrite= modstatdb_init(admindir,msdbrw_writeifposs);
curseson();
packagelist *l= new packagelist(&packagelistbindings);
l->resolvesuggest();
l->display();
delete l;
modstatdb_shutdown();
resetpackages();
return urqr_normal;
}
void dme(int i, int so) {
char buf[120];
const menuentry *me= &menuentries[i];
const char* option = gettext(me->option);
sprintf(buf," %c %d. [%c]%-10.10s %-80.80s ",
so ? '*' : ' ', i,
toupper(option[0]), option+1,
gettext(me->menuent));
int y,x;
getmaxyx(stdscr,y,x);
attrset(so ? A_REVERSE : A_NORMAL);
mvaddnstr(i+2,0, buf,x-1);
attrset(A_NORMAL);
}
int refreshmenu(void) {
char buf[2048];
static int l,lockfd;
static char *lockfile;
curseson(); cbreak(); noecho(); nonl(); keypad(stdscr,TRUE);
int y,x;
getmaxyx(stdscr,y,x);
clear();
attrset(A_BOLD);
sprintf(buf,gettext(programdesc),DSELECT);
mvaddnstr(0,0,buf,x-1);
attrset(A_NORMAL);
const struct menuentry *mep; int i;
for (mep=menuentries, i=0; mep->option && mep->menuent; mep++, i++)
dme(i,0);
attrset(A_BOLD);
addstr(_("\n\n"
"Move around with ^P and ^N, cursor keys, initial letters, or digits;\n"
"Press <enter> to confirm selection. ^L redraws screen.\n\n"));
attrset(A_NORMAL);
sprintf(buf,gettext(copyrightstring),DPKG_VERSION_ARCH);
addstr(buf);
l = strlen(admindir);
lockfile = new char[l+sizeof(LOCKFILE)+2];
strcpy(lockfile,admindir);
strcpy(lockfile+l, "/" LOCKFILE);
lockfd = open(lockfile, O_RDWR|O_CREAT|O_TRUNC, 0660);
if (errno == EACCES || errno == EPERM)
addstr(_("\n\n"
"Read-only access: only preview of selections is available!"));
return i;
}
urqresult urq_menu(void) {
#define C(x) ((x)-'a'+1)
int entries, c, i;
entries= refreshmenu();
int cursor=0;
dme(0,1);
for (;;) {
refresh();
c= getch(); if (c==ERR) ohshite(_("failed to getch in main menu"));
if (c==C('n') || c==KEY_DOWN || c==' ') {
dme(cursor,0); cursor++; cursor %= entries; dme(cursor,1);
} else if (c==C('p') || c==KEY_UP || c==C('h') ||
c==KEY_BACKSPACE || c==KEY_DC) {
dme(cursor,0); cursor+= entries-1; cursor %= entries; dme(cursor,1);
} else if (c=='\n' || c=='\r' || c==KEY_ENTER) {
clear(); refresh();
switch (menuentries[cursor].fn()) { /* fixme: trap errors in urq_... */
case urqr_quitmenu:
return urqr_quitmenu;
case urqr_normal:
cursor++; cursor %= entries;
case urqr_fail:
break;
default:
internerr("unknown menufn");
}
refreshmenu(); dme(cursor,1);
} else if (c==C('l')) {
clearok(stdscr,TRUE); clear(); refreshmenu(); dme(cursor,1);
} else if (isdigit(c)) {
char buf[2]; buf[0]=c; buf[1]=0; c=atoi(buf);
if (c < entries) {
dme(cursor,0); cursor=c; dme(cursor,1);
} else {
beep();
}
} else if (isalpha(c)) {
c= tolower(c);
for (i=0; i<entries && gettext(menuentries[i].option)[0] != c; i++);
if (i < entries) {
dme(cursor,0); cursor=i; dme(cursor,1);
} else {
beep();
}
} else {
beep();
}
}
}
urqresult urq_quit(void) {
return urqr_quitmenu;
/* fixme: check packages OK */
}
int main(int, const char *const *argv) {
jmp_buf ejbuf;
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
#if CAN_RESIZE
(void) signal(SIGWINCH, adjust); /* arrange interrupts to resize */
#endif
if (setjmp(ejbuf)) { /* expect warning about possible clobbering of argv */
cursesoff();
error_unwind(ehflag_bombout); exit(2);
}
push_error_handler(&ejbuf,print_error_fatal,0);
myopt(&argv,cmdinfos);
if (*argv) {
const char *a;
while ((a= *argv++) != 0) {
const menuentry *me;
for (me= menuentries; me->option && strcmp(me->option,a); me++);
if (!me->option) badusage(_("unknown action string `%.50s'"),a);
me->fn();
}
} else {
urq_menu();
}
cursesoff();
set_error_display(0,0);
error_unwind(ehflag_normaltidy);
return(0);
}
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