Initial commit of 2.0. - thinglaunch - A simple command and password promtper for X11.
HTML git clone git://bitreich.org/thinglaunch
DIR Log
DIR Files
DIR Refs
DIR Tags
DIR LICENSE
---
DIR commit 606c0f24754b284bacbb8de22ef5d0c73f065e8f
HTML Author: Christoph Lohmann <20h@r-36.net>
Date: Sun, 27 Mar 2011 18:50:19 +0200
Initial commit of 2.0.
Diffstat:
A LICENSE | 23 +++++++++++++++++++++++
A LICENSE.orig | 41 +++++++++++++++++++++++++++++++
A Makefile | 58 ++++++++++++++++++++++++++++++
A README.md | 36 +++++++++++++++++++++++++++++++
A config.h | 5 +++++
A config.mk | 26 ++++++++++++++++++++++++++
A thinglaunch.c | 466 +++++++++++++++++++++++++++++++
7 files changed, 655 insertions(+), 0 deletions(-)
---
DIR diff --git a/LICENSE b/LICENSE
@@ -0,0 +1,23 @@
+MIT/X Consortium License
+
+© 2011 Christoph Lohmann <20h@r-36.net>
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+
+SEE LICENSE.orig FOR FURTHER APPLYING LICENSE TERMS.
DIR diff --git a/LICENSE.orig b/LICENSE.orig
@@ -0,0 +1,41 @@
+/* This program is a quick little launcher program for X.
+ *
+ * You run the program, it grabs the display (hopefully nothing else has it
+ * grabbed), and you type what you want to run. The styling is minimalist.
+ *
+ * (c) 2003 Matt Johnston
+ * matt (at) ucc.asn.au
+ *
+ * Compile it with
+ * cc thinglaunch.c -o thinglaunch -lX11 -L/usr/X11R6/lib -lpthread
+ * (works for Linux and OSF/1 anyway, for static you might need -ldl, and you
+ * mightn't need -lpthread.)
+ *
+ * This program can be freely distributed in source or binary form, under a
+ * quite permissive license. See the bottom of this file for the full license.
+ * If that license is too restrictive, mail me and you can choose another one.
+ *
+ * $Id: thinglaunch.c,v 1.8 2004/09/20 14:27:48 matt Exp $
+ */
+/*
+Copyright (c) 2003 Matt Johnston
+All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
DIR diff --git a/Makefile b/Makefile
@@ -0,0 +1,58 @@
+# thinglaunch
+# See LICENSE file for copyright and license details.
+
+include config.mk
+
+SRC = ${NAME}.c
+
+OBJ = ${SRC:.c=.o}
+
+all: options ${NAME}
+
+options:
+ @echo ${NAME} build options:
+ @echo "CFLAGS = ${CFLAGS}"
+ @echo "LDFLAGS = ${LDFLAGS}"
+ @echo "CC = ${CC}"
+
+.c.o:
+ @echo CC $<
+ @${CC} -c ${CFLAGS} $<
+
+${OBJ}: config.mk
+
+${NAME}: ${OBJ}
+ @echo CC -o $@
+ @${CC} -o $@ ${OBJ} ${LDFLAGS}
+ @ln -s ${NAME} thingaskpass
+
+clean:
+ @echo cleaning
+ @rm -f ${NAME} thingaskpass ${OBJ} ${NAME}-${VERSION}.tar.gz
+
+dist: clean
+ @echo creating dist tarball
+ @mkdir -p ${NAME}-${VERSION}
+ @cp -R LICENSE LICENSE.orig Makefile README.md config.mk \
+ ${SRC} *.h ${NAME}-${VERSION}
+ @tar -cf ${NAME}-${VERSION}.tar ${NAME}-${VERSION}
+ @gzip ${NAME}-${VERSION}.tar
+ @rm -rf ${NAME}-${VERSION}
+
+etc:
+ @echo installing etc files into ${DESTDIR}/etc/${NAME}
+ @mkdir -p ${DESTDIR}/etc/${NAME}
+ @cp -R etc/${NAME}/* ${DESTDIR}/etc/${NAME}
+
+install: all
+ @echo installing executable file to ${DESTDIR}${PREFIX}/bin
+ @mkdir -p ${DESTDIR}${PREFIX}/bin
+ @cp -f ${NAME} thingaskpass ${DESTDIR}${PREFIX}/bin
+ @chmod 755 ${DESTDIR}${PREFIX}/bin/${NAME}
+
+uninstall:
+ @echo removing executable file from ${DESTDIR}${PREFIX}/bin
+ @rm -f ${DESTDIR}${PREFIX}/bin/${NAME}
+ @rm -f ${DESTDIR}${PREFIX}/bin/thingaskpass
+
+.PHONY: all options clean dist install uninstall
DIR diff --git a/README.md b/README.md
@@ -0,0 +1,36 @@
+# Thinglaunch - a simple entry box for X11
+
+The first intention, as done by the original creator Matt Johnston
+<matt@ucc.asn.au>, was to launch simple commandlines.
+
+In 2011 the single file project was extended by features like Unicode
+support, a prompt and an ssh-askpass compatibility layer.
+
+## Installation
+
+ % tar -xzvf thinglaunch-*.tar.gz
+ % cd thinglaunch
+ % make
+ % sudo PREFIX=/usr make install
+
+This will create the executable »thinglaunch« and »thingaskpass« in
+»/usr/bin«. Thinglaunch will ask for a command and execute it and
+thingaskpass can be used as a SSH_ASKPASS parameter value, which will
+be used by ssh-agent to gather the password for private keys.
+
+## Usage
+
+ # Get some input string and print it to stdout. There will
+ # be the prompt prepended "to stdout> ".
+ % thinglaunch -o -p "to stdout> "
+
+ # Ask for a command, which will be executed. During entering
+ # the command, the entered string will be replaced by asterisks.
+ % thinglaunch -s -p "secret cmd> "
+
+ # This symlink predefines -s, -o and -p "secret> ".
+ % ln -s thinglaunch thingaskpass
+ % ./thingaskpass
+
+Have fun!
+
DIR diff --git a/config.h b/config.h
@@ -0,0 +1,5 @@
+static const char *font = "-*-*-medium-*-*-*-14-*-*-*-*-*-*-*";
+static const char *prompt = "exec> ";
+static const char *normbgcolor = "#222222";
+static const char *normfgcolor = "#cccccc";
+
DIR diff --git a/config.mk b/config.mk
@@ -0,0 +1,26 @@
+# thinglaunch metadata
+NAME = thinglaunch
+VERSION = 2.00
+
+# Customize below to fit your system
+
+# paths
+PREFIX ?= /usr
+MANPREFIX = ${PREFIX}/share/man
+
+X11INC = /usr/X11R6/include
+X11LIB = /usr/X11R6/lib
+
+# includes and libs
+INCS = -I. -I/usr/include
+LIBS = -L/usr/lib -L${X11LIB} -lc -lX11
+
+# flags
+CPPFLAGS = -DVERSION=\"${VERSION}\"
+CFLAGS = -g -std=gnu99 -pedantic -Wall -O0 ${INCS} ${CPPFLAGS}
+LDFLAGS = -g ${LIBS}
+#LDFLAGS = -s ${LIBS}
+
+# compiler and linker
+CC = cc
+
DIR diff --git a/thinglaunch.c b/thinglaunch.c
@@ -0,0 +1,466 @@
+/*
+ * Copy me if you can.
+ * by 20h
+ *
+ * For now this is a slightly modified version of the original from
+ * Matt Johnston <matt@ucc.asn.au>. See LICENSE.orig for his messages.
+ */
+#include <unistd.h>
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+#include <X11/Xutil.h>
+#include <X11/Xlocale.h>
+#include <locale.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <strings.h>
+#include <libgen.h>
+#include <wchar.h>
+
+#include "config.h"
+
+unsigned long getcolor(const char *colstr);
+void createwindow(void);
+void setupgc(void);
+void eventloop(void);
+void grabhack(void);
+void redraw(void);
+void keypress(XKeyEvent *keyevent);
+void execcmd(void);
+void die(char *errstr, ...);
+
+Display *dpy;
+GC gc;
+GC rectgc;
+XIM im;
+XIC ic;
+Window win;
+XFontStruct *font_info;
+XFontSet fontset;
+int screen, issecret = 0, tostdout = 0;
+unsigned long fgcol, bgcol;
+
+#define MAXCMD 255
+#define WINWIDTH 640
+#define WINHEIGHT 25
+
+/* the actual commandline */
+wchar_t command[MAXCMD+1];
+wchar_t secret[MAXCMD+1];
+char cbuf[MAXCMD*4+1];
+
+void
+usage(char *argv0)
+{
+ fprintf(stderr, "usage: %s [-hos] [-p prompt]\n", argv0);
+ exit(1);
+}
+
+int
+main(int argc, char *argv[])
+{
+ int i;
+
+ if (strstr(argv[0], "thingaskpass")) {
+ issecret = 1;
+ tostdout = 1;
+ prompt = "secret> ";
+ }
+ if (argc > 1) {
+ for (i = 1; argv[i]; i++) {
+ if (argv[i][0] == '-') {
+ switch (argv[i][1]) {
+ case 'o':
+ tostdout = 1;
+ break;
+ case 's':
+ issecret = 1;
+ break;
+ case 'p':
+ if (!argv[i+1])
+ usage(argv[0]);
+ prompt = argv[i+1];
+ i++;
+ break;
+ default:
+ case 'h':
+ usage(argv[0]);
+ break;
+ }
+ }
+ }
+ }
+
+ bzero(command, sizeof(command));
+ bzero(secret, sizeof(secret));
+
+ createwindow();
+ setupgc();
+ grabhack();
+ eventloop();
+
+ return 0;
+}
+
+unsigned long
+getcolor(const char *colstr)
+{
+ Colormap cmap = DefaultColormap(dpy, screen);
+ XColor color;
+
+ if (!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
+ die("error, canno allocate color '%s'\n", colstr);
+ return color.pixel;
+}
+
+/*
+ * Stolen from:
+ * http://menehune.opt.wfu.edu/Kokua/Irix_6.5.21_doc_cd/usr/share/\
+ * Insight/library/SGI_bookshelves/SGI_Developer/books/XLib_PG/sgi_\
+ * html/ch11.html#S2-1002-11-11
+ */
+XIMStyle
+choosebetterstyle(XIMStyle style1, XIMStyle style2)
+{
+ XIMStyle s,t;
+ XIMStyle preedit = XIMPreeditArea | XIMPreeditCallbacks |
+ XIMPreeditPosition | XIMPreeditNothing | XIMPreeditNone;
+ XIMStyle status = XIMStatusArea | XIMStatusCallbacks |
+ XIMStatusNothing | XIMStatusNone;
+ if (style1 == 0) return style2;
+ if (style2 == 0) return style1;
+ if ((style1 & (preedit | status)) == (style2 & (preedit | status)))
+ return style1;
+ s = style1 & preedit;
+ t = style2 & preedit;
+ if (s != t) {
+ if (s | t | XIMPreeditCallbacks)
+ return (s == XIMPreeditCallbacks)?style1:style2;
+ else if (s | t | XIMPreeditPosition)
+ return (s == XIMPreeditPosition)?style1:style2;
+ else if (s | t | XIMPreeditArea)
+ return (s == XIMPreeditArea)?style1:style2;
+ else if (s | t | XIMPreeditNothing)
+ return (s == XIMPreeditNothing)?style1:style2;
+ }
+ else { /* if preedit flags are the same, compare status flags */
+ s = style1 & status;
+ t = style2 & status;
+ if (s | t | XIMStatusCallbacks)
+ return (s == XIMStatusCallbacks)?style1:style2;
+ else if (s | t | XIMStatusArea)
+ return (s == XIMStatusArea)?style1:style2;
+ else if (s | t | XIMStatusNothing)
+ return (s == XIMStatusNothing)?style1:style2;
+ }
+}
+
+void
+initim(void)
+{
+ XIMStyles *im_supported_styles;
+ XIMStyle app_supported_styles;
+ XIMStyle style;
+ XIMStyle best_style;
+ XVaNestedList list;
+ char **missing_charsets;
+ int num_missing_charsets = 0;
+ char *default_string;
+ int i;
+
+ fontset = XCreateFontSet(dpy, font, &missing_charsets,
+ &num_missing_charsets, &default_string);
+ if (num_missing_charsets > 0)
+ XFreeStringList(missing_charsets);
+
+ if (!(im = XOpenIM(dpy, NULL, NULL, NULL)))
+ die("Couldn't open input method.\n");
+
+ XGetIMValues(im, XNQueryInputStyle, &im_supported_styles, NULL);
+ app_supported_styles = XIMPreeditNone | XIMPreeditNothing \
+ | XIMPreeditArea;
+ app_supported_styles |= XIMStatusNone | XIMStatusNothing \
+ | XIMStatusArea;
+
+ for(i = 0, best_style = 0; i < im_supported_styles->count_styles;
+ i++) {
+ style = im_supported_styles->supported_styles[i];
+ if ((style & app_supported_styles) == style)
+ best_style = choosebetterstyle(style, best_style);
+ }
+ if (best_style == 0)
+ die("no common shared interaction style found.\n");
+ XFree(im_supported_styles);
+
+ list = XVaCreateNestedList(0, XNFontSet, fontset, NULL);
+ ic = XCreateIC(im, XNInputStyle, best_style, XNClientWindow, win,
+ XNPreeditAttributes, list, XNStatusAttributes,
+ list, NULL);
+ XFree(list);
+ if (ic == NULL)
+ die("Could not create input context.\n");
+}
+
+void
+createwindow(void)
+{
+ char *display_name;
+ int display_width, display_height;
+ int top, left;
+ XSizeHints *win_size_hints;
+ XSetWindowAttributes attrib;
+
+ if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
+ fprintf(stderr, "warning: no locale support.\n");
+
+ display_name = getenv("DISPLAY");
+ if (display_name == NULL)
+ die("DISPLAY not set");
+
+ dpy = XOpenDisplay(display_name);
+ if (dpy == NULL)
+ die("Couldn't connect to DISPLAY");
+
+ if (!XSetLocaleModifiers(""))
+ fprintf(stderr, "warning: could not set local modifiers.\n");
+
+ initim();
+
+ screen = DefaultScreen(dpy);
+ display_width = DisplayWidth(dpy, screen);
+ display_height = DisplayHeight(dpy, screen);
+
+ top = (display_height/2 - WINHEIGHT/2);
+ left = (display_width/2 - WINWIDTH/2);
+
+ bgcol = getcolor(normbgcolor);
+ fgcol = getcolor(normfgcolor);
+
+ /*win = XCreateSimpleWindow(dpy, RootWindow(dpy, screen),
+ left, top, WINWIDTH, WINHEIGHT, borderwidth,
+ bgcol, bgcol);*/
+
+ attrib.override_redirect= True;
+ win = XCreateWindow(dpy, RootWindow(dpy, screen),
+ left, top, WINWIDTH, WINHEIGHT,
+ 0, CopyFromParent,InputOutput,CopyFromParent,
+ CWOverrideRedirect,&attrib);
+
+ /* set up the window hints etc */
+ win_size_hints = XAllocSizeHints();
+ if (!win_size_hints)
+ die("out of memory allocating hints");
+
+ win_size_hints->flags = PMaxSize | PMinSize;
+ win_size_hints->min_width = win_size_hints->max_width = WINWIDTH;
+
+ win_size_hints->min_height = win_size_hints->max_height = WINHEIGHT;
+ XSetWMNormalHints(dpy, win, win_size_hints);
+
+ XFree(win_size_hints);
+
+ XMapWindow(dpy, win);
+}
+
+void
+setupgc(void)
+{
+ XGCValues values;
+ int valuemask = 0;
+ int line_width = 1;
+ int line_style = LineSolid;
+ int cap_style = CapButt;
+ int join_style = JoinBevel;
+
+ gc = XCreateGC(dpy, win, valuemask, &values);
+ rectgc = XCreateGC(dpy, win, valuemask, &values);
+ XSetForeground(dpy, gc, fgcol);
+ XSetBackground(dpy, gc, bgcol);
+
+ XSetForeground(dpy, rectgc, bgcol);
+ XSetBackground(dpy, rectgc, bgcol);
+
+ XSetLineAttributes(dpy, gc, line_width, line_style,
+ cap_style, join_style);
+
+ /* setup the font */
+ font_info = XLoadQueryFont(dpy, font);
+ if (!font_info)
+ die("couldn't load font");
+
+ XSetFont(dpy, gc, font_info->fid);
+}
+
+void
+eventloop(void)
+{
+ XEvent e;
+
+ redraw();
+
+ XSelectInput(dpy, win, ExposureMask | KeyPressMask);
+
+ for (;;) {
+ XNextEvent(dpy, &e);
+ switch(e.type) {
+ case Expose:
+ redraw();
+ break;
+ case KeyPress:
+ keypress(&e.xkey);
+ break;
+ default:
+ break;
+ }
+
+ }
+}
+
+/* this loop is required since pwm grabs the keyboard during the event loop */
+void
+grabhack(void)
+{
+ int maxwait = 3000000; /* 3 seconds */
+ int interval = 5000; /* 5 millisec */
+ int i, x;
+
+ redraw();
+
+ /* if it takes longer than maxwait, just die */
+ for (i = 0; i < (maxwait / interval); i++) {
+ usleep(interval);
+ x = XGrabKeyboard(dpy, win, False, GrabModeAsync,
+ GrabModeAsync, CurrentTime);
+ if (x == 0)
+ return;
+ }
+
+ die("Couldn't grab keyboard");
+}
+
+void
+redraw(void)
+{
+ int font_height, textwidth, promptwidth, dir, ascent, descent;
+ XCharStruct cs;
+ XRectangle ink, logical;
+
+ font_height = font_info->ascent + font_info->descent;
+ XTextExtents(font_info, prompt, strlen(prompt), &dir, &ascent,
+ &descent, &cs);
+ promptwidth = cs.width;
+ XwcTextExtents(fontset, command, wcslen(command), &ink, &logical);
+ textwidth = logical.width;
+ textwidth += promptwidth;
+
+ XFillRectangle(dpy, win, rectgc, 0, 0, WINWIDTH, WINHEIGHT);
+ XDrawRectangle(dpy, win, gc, 0, 0, WINWIDTH-1, WINHEIGHT-1);
+ XDrawString(dpy, win, gc, 2, font_height+2, prompt,
+ strlen(prompt));
+ XwcDrawString(dpy, win, fontset, gc, 4 + promptwidth,
+ font_height+2, command, wcslen(command));
+ XDrawLine(dpy, win, gc, 4 + textwidth, font_height + 2,
+ 4 + textwidth + 10, font_height+2);
+
+ XFlush(dpy);
+}
+
+void
+keypress(XKeyEvent *keyevent)
+{
+ KeySym key_symbol;
+ int len;
+ wchar_t buffer[3];
+
+ len = XwcLookupString(ic, keyevent, buffer, 3, &key_symbol, NULL);
+ buffer[len] = L'\0';
+
+ switch(key_symbol) {
+ case XK_Escape:
+ exit(0);
+ break;
+ case XK_BackSpace:
+ len = wcslen(command);
+ if (len > 0) {
+ command[len-1] = L'\0';
+ if (issecret)
+ secret[len-1] = L'\0';
+ }
+ break;
+ case XK_Return:
+ case XK_KP_Enter:
+ execcmd();
+ break;
+ default:
+ if (key_symbol > 255)
+ break;
+
+ len = wcslen(command);
+ if (len < MAXCMD) {
+ if (issecret) {
+ secret[len] = buffer[0];
+ secret[len+1] = L'\0';
+ command[len] = L'*';
+ command[len+1] = L'\0';
+ } else {
+ command[len] = buffer[0];
+ command[len+1] = L'\0';
+ }
+ }
+ break;
+ }
+ redraw();
+}
+
+void
+execcmd(void)
+{
+ char *shell;
+ char *argv[4];
+
+ XDestroyWindow(dpy, win);
+
+ bzero(cbuf, sizeof(cbuf));
+ if (issecret)
+ wcstombs(cbuf, secret, sizeof(cbuf)-1);
+ else
+ wcstombs(cbuf, command, sizeof(cbuf)-1);
+
+ if (tostdout) {
+ printf("%s\n", cbuf);
+ exit(0);
+ }
+
+ if (fork())
+ exit(0);
+
+ shell = getenv("SHELL");
+ if (!shell)
+ shell = "/bin/sh";
+
+ argv[0] = basename(shell);
+ argv[1] = "-c";
+ argv[2] = cbuf;
+ argv[3] = NULL;
+
+ execv(shell, argv);
+ die("aiee, after exec");
+
+}
+
+
+void
+die(char *errstr, ...)
+{
+ va_list ap;
+
+ va_start(ap, errstr);
+ vfprintf(stderr, errstr, ap);
+ va_end(ap);
+
+ exit(1);
+}
+