1 | /*--------------------------------*-C-*---------------------------------* |
1 | /*--------------------------------*-C-*---------------------------------* |
2 | * File: main.c |
2 | * File: main.c |
3 | *----------------------------------------------------------------------* |
3 | *----------------------------------------------------------------------* |
4 | * $Id: main.C,v 1.3 2003/11/25 11:52:42 pcg Exp $ |
4 | * $Id: main.C,v 1.8 2003/11/27 10:12:10 pcg Exp $ |
5 | * |
5 | * |
6 | * All portions of code are copyright by their respective author/s. |
6 | * All portions of code are copyright by their respective author/s. |
7 | * Copyright (c) 1992 John Bovey, University of Kent at Canterbury <jdb@ukc.ac.uk> |
7 | * Copyright (c) 1992 John Bovey, University of Kent at Canterbury <jdb@ukc.ac.uk> |
8 | * - original version |
8 | * - original version |
9 | * Copyright (c) 1994 Robert Nation <nation@rocket.sanders.lockheed.com> |
9 | * Copyright (c) 1994 Robert Nation <nation@rocket.sanders.lockheed.com> |
… | |
… | |
42 | |
42 | |
43 | #ifdef HAVE_TERMIOS_H |
43 | #ifdef HAVE_TERMIOS_H |
44 | # include <termios.h> |
44 | # include <termios.h> |
45 | #endif |
45 | #endif |
46 | |
46 | |
47 | rxvt_term::rxvt_term() |
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48 | : pty_ev(this, &rxvt_term::pty_cb), |
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49 | x_ev (this, &rxvt_term::x_cb) |
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50 | { |
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51 | cmdbuf_ptr = cmdbuf_endp = cmdbuf_base; |
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52 | } |
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53 | |
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54 | void * |
47 | void * |
55 | rxvt_term::operator new (size_t s) |
48 | rxvt_term::operator new (size_t s) |
56 | { |
49 | { |
57 | void *p = malloc (s); |
50 | void *p = malloc (s); |
58 | |
51 | |
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62 | |
55 | |
63 | void |
56 | void |
64 | rxvt_term::operator delete (void *p, size_t s) |
57 | rxvt_term::operator delete (void *p, size_t s) |
65 | { |
58 | { |
66 | free (p); |
59 | free (p); |
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60 | } |
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61 | |
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62 | rxvt_term::rxvt_term () |
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63 | : pty_ev (this, &rxvt_term::pty_cb), |
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64 | #ifdef CURSOR_BLINK |
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65 | blink_ev (this, &rxvt_term::blink_cb), |
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66 | #endif |
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67 | #ifdef POINTER_BLANK |
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68 | pointer_ev (this, &rxvt_term::pointer_cb), |
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69 | #endif |
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70 | x_ev (this, &rxvt_term::x_cb), |
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71 | destroy_ev (this, &rxvt_term::destroy_cb) |
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72 | { |
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73 | cmdbuf_ptr = cmdbuf_endp = cmdbuf_base; |
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74 | } |
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75 | |
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76 | rxvt_term::~rxvt_term () |
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77 | { |
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78 | rxvt_scr_release (this); |
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79 | |
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80 | #ifndef NO_SETOWNER_TTYDEV |
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81 | rxvt_privileged_ttydev (this, RESTORE); |
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82 | #endif |
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83 | #ifdef UTMP_SUPPORT |
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84 | rxvt_privileged_utmp (this, RESTORE); |
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85 | #endif |
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86 | #ifdef USE_XIM |
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87 | if (Input_Context != NULL) |
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88 | { |
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89 | XDestroyIC (Input_Context); |
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90 | Input_Context = NULL; |
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91 | } |
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92 | #endif |
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93 | |
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94 | if (cmd_fd >= 0) |
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95 | close (cmd_fd); |
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96 | |
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97 | if (Xfd >= 0) |
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98 | XCloseDisplay (Xdisplay); |
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99 | |
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100 | delete PixColors; |
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101 | } |
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102 | |
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103 | void |
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104 | rxvt_term::destroy () |
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105 | { |
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106 | pty_ev.stop (); |
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107 | x_ev.stop (); |
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108 | #ifdef CURSOR_BLINK |
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109 | blink_ev.stop (); |
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110 | #endif |
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111 | #ifdef POINTER_BLANK |
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112 | pointer_ev.stop (); |
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113 | #endif |
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114 | |
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115 | destroy_ev.start (0); |
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116 | } |
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117 | |
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118 | void |
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119 | rxvt_term::destroy_cb (time_watcher &w) |
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120 | { |
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121 | SET_R (this); |
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122 | |
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123 | delete this; |
67 | } |
124 | } |
68 | |
125 | |
69 | /*----------------------------------------------------------------------*/ |
126 | /*----------------------------------------------------------------------*/ |
70 | /* rxvt_init() */ |
127 | /* rxvt_init() */ |
71 | /* LIBPROTO */ |
128 | /* LIBPROTO */ |
72 | rxvt_t |
129 | rxvt_t |
73 | rxvt_init(int argc, const char *const *argv) |
130 | rxvt_init(int argc, const char *const *argv) |
74 | { |
131 | { |
75 | const char **cmd_argv; |
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76 | |
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77 | SET_R(new rxvt_term); |
132 | SET_R(new rxvt_term); |
78 | dR; |
133 | dR; |
79 | |
134 | |
80 | if (rxvt_init_vars(aR) < 0) |
135 | if (!R->init_vars () || !R->init (argc, argv)) |
81 | { |
136 | { |
82 | free(R); |
137 | delete R; |
83 | return NULL; |
138 | return NULL; |
84 | } |
139 | } |
85 | |
140 | |
86 | /* |
141 | return R; |
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142 | } |
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143 | |
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144 | /* EXTPROTO */ |
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145 | void |
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146 | rxvt_init_signals () |
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147 | { |
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148 | /* install exit handler for cleanup */ |
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149 | #if 0 |
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150 | #ifdef HAVE_ATEXIT |
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151 | atexit(rxvt_clean_exit); |
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152 | #else |
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153 | # ifdef HAVE_ON_EXIT |
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154 | on_exit(rxvt_clean_exit, NULL); /* non-ANSI exit handler */ |
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155 | # endif |
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156 | #endif |
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157 | #endif |
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158 | |
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159 | struct sigaction sa; |
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160 | |
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161 | sigfillset (&sa.sa_mask); |
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162 | sa.sa_flags = SA_NOCLDSTOP | SA_RESTART; |
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163 | sa.sa_handler = rxvt_Exit_signal; sigaction (SIGHUP , &sa, 0); //TODO, also: SIGPIPE |
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164 | sa.sa_handler = rxvt_Exit_signal; sigaction (SIGINT , &sa, 0); |
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165 | sa.sa_handler = rxvt_Exit_signal; sigaction (SIGQUIT, &sa, 0); |
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166 | sa.sa_handler = rxvt_Exit_signal; sigaction (SIGTERM, &sa, 0); |
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167 | sa.sa_handler = rxvt_Child_signal; sigaction (SIGCHLD, &sa, 0); |
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168 | |
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169 | /* need to trap SIGURG for SVR4 (Unixware) rlogin */ |
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170 | /* signal (SIGURG, SIG_DFL); */ |
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171 | |
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172 | XSetErrorHandler ((XErrorHandler) rxvt_xerror_handler); |
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173 | //XSetIOErrorHandler ((XErrorHandler) rxvt_xioerror_handler); |
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174 | } |
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175 | |
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176 | bool |
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177 | rxvt_term::init (int argc, const char *const *argv) |
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178 | { |
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179 | dR;//TODO (scrollbar, setidle) |
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180 | |
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181 | /* |
87 | * Save and then give up any super-user privileges |
182 | * Save and then give up any super-user privileges |
88 | * If we need privileges in any area then we must specifically request it. |
183 | * If we need privileges in any area then we must specifically request it. |
89 | * We should only need to be root in these cases: |
184 | * We should only need to be root in these cases: |
90 | * 1. write utmp entries on some systems |
185 | * 1. write utmp entries on some systems |
91 | * 2. chown tty on some systems |
186 | * 2. chown tty on some systems |
92 | */ |
187 | */ |
93 | rxvt_privileges(aR_ SAVE); |
188 | rxvt_privileges (this, SAVE); |
94 | rxvt_privileges(aR_ IGNORE); |
189 | rxvt_privileges (this, IGNORE); |
95 | |
190 | |
96 | rxvt_init_secondary(aR); |
191 | rxvt_init_secondary (this); |
97 | |
192 | |
98 | cmd_argv = rxvt_init_resources(aR_ argc, argv); |
193 | const char **cmd_argv = rxvt_init_resources (this, argc, argv); |
99 | |
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100 | R->x_ev.start (ConnectionNumber (R->Xdisplay), EVENT_READ); |
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101 | |
194 | |
102 | #if (MENUBAR_MAX) |
195 | #if (MENUBAR_MAX) |
103 | rxvt_menubar_read(aR_ R->rs[Rs_menu]); |
196 | rxvt_menubar_read (this, rs[Rs_menu]); |
104 | #endif |
197 | #endif |
105 | #ifdef HAVE_SCROLLBARS |
198 | #ifdef HAVE_SCROLLBARS |
106 | if (R->Options & Opt_scrollBar) |
199 | if (Options & Opt_scrollBar) |
107 | scrollbar_setIdle(); /* set existence for size calculations */ |
200 | scrollbar_setIdle (); /* set existence for size calculations */ |
108 | #endif |
201 | #endif |
109 | |
202 | |
110 | rxvt_Create_Windows(aR_ argc, argv); |
203 | rxvt_Create_Windows (this, argc, argv); |
111 | |
204 | |
112 | rxvt_init_xlocale(aR); |
205 | rxvt_init_xlocale (this); |
113 | |
206 | |
114 | rxvt_scr_reset(aR); /* initialize screen */ |
207 | rxvt_scr_reset (this); /* initialize screen */ |
115 | #ifdef RXVT_GRAPHICS |
208 | #ifdef RXVT_GRAPHICS |
116 | rxvt_Gr_reset(aR); /* reset graphics */ |
209 | rxvt_Gr_reset (this); /* reset graphics */ |
117 | #endif |
210 | #endif |
118 | |
211 | |
119 | #if 0 |
212 | #if 0 |
120 | #ifdef DEBUG_X |
213 | #ifdef DEBUG_X |
121 | XSynchronize(R->Xdisplay, True); |
214 | XSynchronize(Xdisplay, True); |
122 | XSetErrorHandler((XErrorHandler) abort); |
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123 | #else |
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124 | XSetErrorHandler((XErrorHandler) rxvt_xerror_handler); |
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125 | #endif |
215 | #endif |
126 | #endif |
216 | #endif |
127 | |
217 | |
128 | #ifdef HAVE_SCROLLBARS |
218 | #ifdef HAVE_SCROLLBARS |
129 | if (R->Options & Opt_scrollBar) |
219 | if (Options & Opt_scrollBar) |
130 | rxvt_Resize_scrollBar(aR); /* create and map scrollbar */ |
220 | rxvt_Resize_scrollBar (this); /* create and map scrollbar */ |
131 | #endif |
221 | #endif |
132 | #if (MENUBAR_MAX) |
222 | #if (MENUBAR_MAX) |
133 | if (menubar_visible(r)) |
223 | if (menubar_visible(r)) |
134 | XMapWindow(R->Xdisplay, R->menuBar.win); |
224 | XMapWindow (Xdisplay, menuBar.win); |
135 | #endif |
225 | #endif |
136 | #ifdef TRANSPARENT |
226 | #ifdef TRANSPARENT |
137 | if (R->Options & Opt_transparent) |
227 | if (Options & Opt_transparent) |
138 | { |
228 | { |
139 | XSelectInput(R->Xdisplay, Xroot, PropertyChangeMask); |
229 | XSelectInput (Xdisplay, Xroot, PropertyChangeMask); |
140 | rxvt_check_our_parents(aR); |
230 | rxvt_check_our_parents (this); |
141 | } |
231 | } |
142 | #endif |
232 | #endif |
143 | XMapWindow(R->Xdisplay, R->TermWin.vt); |
233 | XMapWindow (Xdisplay, TermWin.vt); |
144 | XMapWindow(R->Xdisplay, R->TermWin.parent[0]); |
234 | XMapWindow (Xdisplay, TermWin.parent[0]); |
145 | |
235 | |
146 | rxvt_init_env(aR); |
236 | rxvt_init_env (this); |
147 | rxvt_init_command(aR_ cmd_argv); |
237 | rxvt_init_command (this, cmd_argv); |
148 | |
238 | |
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239 | x_ev.start (Xfd, EVENT_READ); |
149 | R->pty_ev.start (R->cmd_fd, EVENT_READ); |
240 | pty_ev.start (cmd_fd, EVENT_READ); |
150 | |
241 | |
151 | return R; |
242 | flush (); |
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243 | |
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244 | return true; |
152 | } |
245 | } |
153 | |
246 | |
154 | /* ------------------------------------------------------------------------- * |
247 | /* ------------------------------------------------------------------------- * |
155 | * SIGNAL HANDLING & EXIT HANDLER * |
248 | * SIGNAL HANDLING & EXIT HANDLER * |
156 | * ------------------------------------------------------------------------- */ |
249 | * ------------------------------------------------------------------------- */ |
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160 | /* ARGSUSED */ |
253 | /* ARGSUSED */ |
161 | /* EXTPROTO */ |
254 | /* EXTPROTO */ |
162 | RETSIGTYPE |
255 | RETSIGTYPE |
163 | rxvt_Child_signal(int sig __attribute__ ((unused))) |
256 | rxvt_Child_signal(int sig __attribute__ ((unused))) |
164 | { |
257 | { |
165 | dR; |
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166 | int pid, save_errno = errno; |
258 | int pid, save_errno = errno; |
167 | |
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168 | do { |
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169 | errno = 0; |
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170 | } while ((pid = waitpid(-1, NULL, WNOHANG)) == -1 && errno == EINTR); |
259 | while ((pid = waitpid (-1, NULL, WNOHANG)) == -1 && errno == EINTR) |
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260 | ; |
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261 | errno = save_errno; |
171 | |
262 | |
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263 | #if 0 |
172 | if (pid == R->cmd_pid) |
264 | if (pid == R->cmd_pid) |
173 | exit(EXIT_SUCCESS); |
265 | exit (EXIT_SUCCESS); |
174 | |
266 | #endif |
175 | errno = save_errno; |
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176 | signal(SIGCHLD, rxvt_Child_signal); |
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177 | } |
267 | } |
178 | |
268 | |
179 | /* |
269 | /* |
180 | * Catch a fatal signal and tidy up before quitting |
270 | * Catch a fatal signal and tidy up before quitting |
181 | */ |
271 | */ |
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195 | /* INTPROTO */ |
285 | /* INTPROTO */ |
196 | int |
286 | int |
197 | rxvt_xerror_handler(const Display * display |
287 | rxvt_xerror_handler(const Display * display |
198 | __attribute__ ((unused)), const XErrorEvent * event) |
288 | __attribute__ ((unused)), const XErrorEvent * event) |
199 | { |
289 | { |
200 | dR; |
290 | dR; |
201 | |
291 | |
202 | if (R->allowedxerror == -1) { |
292 | if (R->allowedxerror == -1) |
203 | R->allowedxerror = event->error_code; |
293 | R->allowedxerror = event->error_code; |
204 | return 0; /* ignored anyway */ |
294 | else |
205 | } |
295 | { |
206 | rxvt_print_error("XError: Request: %d . %d, Error: %d", |
296 | rxvt_print_error("XError: Request: %d . %d, Error: %d", |
207 | event->request_code, event->minor_code, |
297 | event->request_code, event->minor_code, |
208 | event->error_code); |
298 | event->error_code); |
209 | /* XXX: probably should call rxvt_clean_exit() bypassing X routines */ |
299 | |
210 | exit(EXIT_FAILURE); |
300 | R->destroy (); |
211 | /* NOTREACHED */ |
301 | } |
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302 | |
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303 | return 0; |
212 | } |
304 | } |
213 | |
305 | |
214 | /*----------------------------------------------------------------------*/ |
306 | /*----------------------------------------------------------------------*/ |
215 | /* |
307 | /* |
216 | * Exit gracefully, clearing the utmp entry and restoring tty attributes |
308 | * Exit gracefully, clearing the utmp entry and restoring tty attributes |
217 | * TODO: if debugging, this should free up any known resources if we can |
309 | * TODO: if debugging, this should free up any known resources if we can |
218 | */ |
310 | */ |
219 | /* EXTPROTO */ |
311 | /* EXTPROTO */ |
220 | void |
312 | void |
221 | rxvt_clean_exit(void) |
313 | rxvt_clean_exit () |
222 | { |
314 | { |
223 | dR; |
315 | dR; |
224 | |
316 | |
225 | #ifdef DEBUG_SCREEN |
317 | R->destroy (); |
226 | rxvt_scr_release(aR); |
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227 | #endif |
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228 | #ifndef NO_SETOWNER_TTYDEV |
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229 | rxvt_privileged_ttydev(aR_ RESTORE); |
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230 | #endif |
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231 | #ifdef UTMP_SUPPORT |
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232 | rxvt_privileged_utmp(aR_ RESTORE); |
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233 | #endif |
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234 | #ifdef USE_XIM |
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235 | if (R->Input_Context != NULL) { |
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236 | XDestroyIC(R->Input_Context); |
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237 | R->Input_Context = NULL; |
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238 | } |
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239 | #endif |
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240 | } |
318 | } |
241 | |
319 | |
242 | /* ------------------------------------------------------------------------- * |
320 | /* ------------------------------------------------------------------------- * |
243 | * MEMORY ALLOCATION WRAPPERS * |
321 | * MEMORY ALLOCATION WRAPPERS * |
244 | * ------------------------------------------------------------------------- */ |
322 | * ------------------------------------------------------------------------- */ |