Initial import of Eterm 0.8.9 sources

SVN revision: 38

1 files changed, 479 insertions, 0 deletions

diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..f2c5d79
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,479 @@
+/*  main.c -- Eterm main() function
+ *         -- 22 August 1998, mej
+ *
+ * This file is original work by Michael Jennings <mej@tcserv.com> and
+ * Tuomo Venalainen <vendu@cc.hut.fi>.  This file, and any other file
+ * bearing this same message or a similar one, is distributed under
+ * the GNU Public License (GPL) as outlined in the COPYING file.
+ *
+ * Copyright (C) 1997, Michael Jennings and Tuomo Venalainen
+ *
+ * This program 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 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * 
+ */
+
+static const char cvs_ident[] = "$Id$";
+
+/* includes */
+#include "main.h"
+#ifdef USE_ACTIVE_TAGS
+# include "activetags.h"
+# include "activeeterm.h"
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#include <ctype.h>
+#include <X11/cursorfont.h>
+#include <X11/keysym.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xatom.h>
+#include <X11/Xos.h>
+
+#include "command.h"
+#include "feature.h"
+#include "../libmej/debug.h"	/* from libmej */
+#include "debug.h"
+#include "../libmej/mem.h"
+#include "../libmej/strings.h"
+/* For strsep(). -vendu */
+#if defined(linux)
+# include <string.h>
+#endif
+#include "string.h"
+#include "graphics.h"
+#include "scrollbar.h"
+#include "menubar.h"
+#include "screen.h"
+#include "options.h"
+#include "pixmap.h"
+#ifdef USE_POSIX_THREADS
+# include "threads.h"
+#endif
+
+/* Global attributes */
+XWindowAttributes attr;
+XSetWindowAttributes Attributes;
+char *orig_argv0;
+
+#ifdef PIXMAP_SUPPORT
+/* Set to one in case there is no WM, or a lousy one
+   that doesn't send the right events (*cough*
+   Window Maker *cough*) -- mej */
+short bg_needs_update = 1;
+
+#endif
+
+/* extern functions referenced */
+#ifdef DISPLAY_IS_IP
+extern char *network_display(const char *display);
+
+#endif
+
+extern void get_initial_options(int, char **);
+extern void menubar_read(const char *filename);
+
+#ifdef USE_POSIX_THREADS
+static void **retval;
+static int join_value;
+static pthread_t main_loop_thr;
+static pthread_attr_t main_loop_attr;
+
+# ifdef MUTEX_SYNCH
+pthread_mutex_t mutex;
+
+# endif
+#endif
+
+#ifdef PIXMAP_SUPPORT
+extern void render_pixmap(Window win, imlib_t image, pixmap_t pmap,
+			  int which, renderop_t renderop);
+
+# ifdef BACKING_STORE
+extern const char *rs_saveUnder;
+
+# endif
+
+extern char *rs_noCursor;
+
+# ifdef USE_IMLIB
+extern ImlibData *imlib_id;
+
+# endif
+#endif
+
+/* extern variables referenced */
+extern int my_ruid, my_rgid, my_euid, my_egid;
+extern unsigned int rs_shadePct;
+extern unsigned long rs_tintMask;
+
+/* extern variables declared here */
+TermWin_t TermWin;
+Display *Xdisplay;		/* display */
+
+char *rs_color[NRS_COLORS];
+Pixel PixColors[NRS_COLORS + NSHADOWCOLORS];
+
+unsigned long Options = (Opt_scrollBar);
+unsigned int debug_level = 0;	/* Level of debugging information to display */
+
+const char *display_name = NULL;
+char *rs_name = NULL;		/* client instance (resource name) */
+
+#ifndef NO_BOLDFONT
+const char *rs_boldFont = NULL;
+
+#endif
+const char *rs_font[NFONTS];
+
+#ifdef KANJI
+const char *rs_kfont[NFONTS];
+
+#endif
+
+#ifdef PRINTPIPE
+char *rs_print_pipe = NULL;
+
+#endif
+
+char *rs_cutchars = NULL;
+
+/* local variables */
+Cursor TermWin_cursor;		/* cursor for vt window */
+unsigned int colorfgbg;
+menuBar_t menuBar;
+
+XSizeHints szHint =
+{
+  PMinSize | PResizeInc | PBaseSize | PWinGravity,
+  0, 0, 80, 24,			/* x, y, width, height */
+  1, 1,				/* Min width, height */
+  0, 0,				/* Max width, height - unused */
+  1, 1,				/* increments: width, height */
+  {1, 1},			/* increments: x, y */
+  {0, 0},			/* Aspect ratio - unused */
+  0, 0,				/* base size: width, height */
+  NorthWestGravity		/* gravity */
+};
+
+char *def_colorName[] =
+{
+  "rgb:0/0/0", "rgb:ff/ff/ff",	/* fg/bg */
+  "rgb:0/0/0",			/* 0: black             (#000000) */
+#ifndef NO_BRIGHTCOLOR
+    /* low-intensity colors */
+  "rgb:cc/00/00",		/* 1: red     */
+  "rgb:00/cc/00",		/* 2: green   */
+  "rgb:cc/cc/00",		/* 3: yellow  */
+  "rgb:00/00/cc",		/* 4: blue    */
+  "rgb:cc/00/cc",		/* 5: magenta */
+  "rgb:00/cc/cc",		/* 6: cyan    */
+  "rgb:fa/eb/d7",		/* 7: white   */
+    /* high-intensity colors */
+  "rgb:33/33/33",		/* 8: bright black */
+#endif				/* NO_BRIGHTCOLOR */
+  "rgb:ff/00/00",		/* 1/9:  bright red     */
+  "rgb:00/ff/00",		/* 2/10: bright green   */
+  "rgb:ff/ff/00",		/* 3/11: bright yellow  */
+  "rgb:00/00/ff",		/* 4/12: bright blue    */
+  "rgb:ff/00/ff",		/* 5/13: bright magenta */
+  "rgb:00/ff/ff",		/* 6/14: bright cyan    */
+  "rgb:ff/ff/ff",		/* 7/15: bright white   */
+#ifndef NO_CURSORCOLOR
+  NULL, NULL,			/* cursorColor, cursorColor2 */
+#endif				/* NO_CURSORCOLOR */
+  NULL, NULL			/* pointerColor, borderColor */
+#ifndef NO_BOLDUNDERLINE
+  ,NULL, NULL			/* colorBD, colorUL */
+#endif				/* NO_BOLDUNDERLINE */
+  ,"rgb:ff/ff/ff"		/* menuTextColor */
+#ifdef KEEP_SCROLLCOLOR
+  ,"rgb:b2/b2/b2"		/* scrollColor: match Netscape color */
+# ifdef CHANGE_SCROLLCOLOR_ON_FOCUS
+  ,NULL				/* unfocusedscrollColor: somebody chose black? */
+# endif
+#endif
+};
+
+#ifdef KANJI
+/* Kanji font names, roman fonts sized to match */
+const char *def_kfontName[] =
+{
+  KFONT0, KFONT1, KFONT2, KFONT3, KFONT4
+};
+
+#endif /* KANJI */
+const char *def_fontName[] =
+{
+  FONT0, FONT1, FONT2, FONT3, FONT4
+};
+
+/* extern functions referenced */
+#ifdef PIXMAP_SUPPORT
+/* the originally loaded pixmap and its scaling */
+extern pixmap_t bgPixmap;
+extern void set_bgPixmap(const char * /* file */ );
+
+# ifdef USE_IMLIB
+extern imlib_t imlib_bg;
+
+# endif
+# ifdef PIXMAP_SCROLLBAR
+extern pixmap_t sbPixmap;
+extern pixmap_t upPixmap, up_clkPixmap;
+extern pixmap_t dnPixmap, dn_clkPixmap;
+extern pixmap_t saPixmap, sa_clkPixmap;
+
+#  ifdef USE_IMLIB
+extern imlib_t imlib_sb, imlib_sa, imlib_saclk;
+
+#  endif
+# endif
+# ifdef PIXMAP_MENUBAR
+extern pixmap_t mbPixmap, mb_selPixmap;
+
+#  ifdef USE_IMLIB
+extern imlib_t imlib_mb, imlib_ms;
+
+#  endif
+# endif
+
+extern int scale_pixmap(const char *geom, pixmap_t * pmap);
+
+#endif /* PIXMAP_SUPPORT */
+
+/* have we changed the font? Needed to avoid race conditions
+ * while window resizing  */
+int font_change_count = 0;
+
+static void resize(void);
+
+extern XErrorHandler xerror_handler(Display *, XErrorEvent *);
+extern void Create_Windows(int, char **);
+
+/* main() */
+int
+main(int argc, char *argv[])
+{
+
+  int i, count;
+  char *val;
+  static char windowid_string[20], *display_string, *term_string;	/* "WINDOWID=\0" = 10 chars, UINT_MAX = 10 chars */
+
+  orig_argv0 = argv[0];
+
+#ifdef USE_POSIX_THREADS
+# ifdef MUTEX_SYNCH
+  pthread_atfork((void *) &prepare, (void *) &parent, (void *) &child);
+# endif
+#endif
+
+  /* Security enhancements -- mej */
+  my_ruid = getuid();
+  my_euid = geteuid();
+  my_rgid = getgid();
+  my_egid = getegid();
+  privileges(REVERT);
+
+  TermWin.wm_parent = None;
+  init_defaults();
+
+  /* Open display, get options/resources and create the window */
+  if ((display_name = getenv("DISPLAY")) == NULL)
+    display_name = ":0";
+
+  /* This MUST be called before any other Xlib functions */
+
+#ifdef USE_POSIX_THREADS
+  if (XInitThreads()) {
+    D_THREADS(("XInitThreads() succesful\n"));
+  } else {
+    D_THREADS(("XInitThreads() failed, I'm outta here\n"));
+  }
+#endif
+
+#ifdef USE_THEMES
+  get_initial_options(argc, argv);
+#endif
+  read_config();
+#ifdef PIXMAP_SUPPORT
+  if (rs_path) {
+    rs_path = REALLOC(rs_path, strlen(rs_path) + strlen(initial_dir) + 2);
+    strcat(rs_path, ":");
+    strcat(rs_path, initial_dir);
+  }
+#endif
+  get_options(argc, argv);
+#ifdef USE_ACTIVE_TAGS
+  tag_init();
+#endif
+  D_UTMP(("Saved real uid/gid = [ %d, %d ]  effective uid/gid = [ %d, %d ]\n", my_ruid, my_rgid, my_euid, my_egid));
+  D_UTMP(("Now running with real uid/gid = [ %d, %d ]  effective uid/gid = [ %d, %d ]\n", getuid(), getgid(), geteuid(),
+	  getegid()));
+
+#ifdef NEED_LINUX_HACK
+  privileges(INVOKE);		/* xdm in new Linux versions requires ruid != root to open the display -- mej */
+#endif
+  Xdisplay = XOpenDisplay(display_name);
+#ifdef NEED_LINUX_HACK
+  privileges(REVERT);
+#endif
+
+  if (!Xdisplay) {
+    print_error("can't open display %s", display_name);
+    exit(EXIT_FAILURE);
+  }
+
+#if DEBUG >= DEBUG_X
+  if (debug_level >= DEBUG_X) {
+    XSetErrorHandler((XErrorHandler) abort);
+  } else {
+    XSetErrorHandler((XErrorHandler) xerror_handler);
+  }
+#else
+  XSetErrorHandler((XErrorHandler) xerror_handler);
+#endif
+
+  /* Since we always use Imlib now, let's initialize it here. */
+  imlib_id = Imlib_init(Xdisplay);
+
+  post_parse();
+
+#ifdef PREFER_24BIT
+  Xdepth = DefaultDepth(Xdisplay, Xscreen);
+  Xcmap = DefaultColormap(Xdisplay, Xscreen);
+  Xvisual = DefaultVisual(Xdisplay, Xscreen);
+
+  /*
+   * If depth is not 24, look for a 24bit visual.
+   */
+  if (Xdepth != 24) {
+    XVisualInfo vinfo;
+
+    if (XMatchVisualInfo(Xdisplay, Xscreen, 24, TrueColor, &vinfo)) {
+      Xdepth = 24;
+      Xvisual = vinfo.visual;
+      Xcmap = XCreateColormap(Xdisplay, RootWindow(Xdisplay, Xscreen),
+			      Xvisual, AllocNone);
+    }
+  }
+#endif
+
+  Create_Windows(argc, argv);
+  scr_reset();			/* initialize screen */
+  Gr_reset();			/* reset graphics */
+
+  /* add scrollBar, do it directly to avoid resize() */
+  scrollbar_mapping(Options & Opt_scrollBar);
+  /* we can now add menuBar */
+  if (delay_menu_drawing) {
+    delay_menu_drawing = 0;
+    menubar_mapping(1);
+  } else if (rs_menubar == *false_vals) {
+    menubar_mapping(0);
+  }
+#if DEBUG >= DEBUG_X
+  if (debug_level >= DEBUG_X) {
+    XSynchronize(Xdisplay, True);
+  }
+#endif
+
+#ifdef DISPLAY_IS_IP
+  /* Fixup display_name for export over pty to any interested terminal
+   * clients via "ESC[7n" (e.g. shells).  Note we use the pure IP number
+   * (for the first non-loopback interface) that we get from
+   * network_display().  This is more "name-resolution-portable", if you
+   * will, and probably allows for faster x-client startup if your name
+   * server is beyond a slow link or overloaded at client startup.  Of
+   * course that only helps the shell's child processes, not us.
+   *
+   * Giving out the display_name also affords a potential security hole
+   */
+
+  val = display_name = network_display(display_name);
+  if (val == NULL)
+#endif /* DISPLAY_IS_IP */
+    val = XDisplayString(Xdisplay);
+  if (display_name == NULL)
+    display_name = val;		/* use broken `:0' value */
+
+  i = strlen(val);
+  display_string = MALLOC((i + 9));
+
+  sprintf(display_string, "DISPLAY=%s", val);
+  sprintf(windowid_string, "WINDOWID=%u", (unsigned int) TermWin.parent);
+
+  /* add entries to the environment:
+   * @ DISPLAY:   in case we started with -display
+   * @ WINDOWID:  X window id number of the window
+   * @ COLORTERM: terminal sub-name and also indicates its color
+   * @ TERM:      terminal name
+   */
+  putenv(display_string);
+  putenv(windowid_string);
+  if (Xdepth <= 2) {
+    putenv("COLORTERM=" COLORTERMENV "-mono");
+    putenv("TERM=" TERMENV);
+  } else {
+    if (rs_term_name != NULL) {
+      i = strlen(rs_term_name);
+      term_string = MALLOC((i + 6) * sizeof(char));
+
+      sprintf(term_string, "TERM=%s", rs_term_name);
+      putenv(term_string);
+    } else {
+#ifdef DEFINE_XTERM_COLOR
+      if (Xdepth <= 2)
+	putenv("TERM=" TERMENV);
+      else
+	putenv("TERM=" TERMENV "-color");
+#else
+      putenv("TERM=" TERMENV);
+#endif
+    }
+#ifdef PIXMAP_SUPPORT
+    putenv("COLORTERM=" COLORTERMENV "-pixmap");
+#else
+    putenv("COLORTERM=" COLORTERMENV);
+#endif
+  }
+
+  D_CMD(("init_command()\n"));
+  init_command(rs_execArgs);
+#ifndef USE_POSIX_THREADS
+  if (Options & Opt_borderless) {
+    resize_window();
+  }
+#endif
+
+#ifdef USE_POSIX_THREADS
+  D_THREADS(("main_thread:"));
+  pthread_attr_init(&main_loop_attr);
+  pthread_create(&main_loop_thr, &main_loop_attr,
+		 (void *) &main_thread, NULL);
+  D_THREADS(("done? :)\n"));
+  while (1);
+  /*  main_loop(); */
+#else
+  main_loop();			/* main processing loop */
+#endif
+
+  return (EXIT_SUCCESS);
+}
+/* EOF */