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/cvs/rxvt-unicode/src/ptytty.C
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Comparing rxvt-unicode/src/ptytty.C (file contents):
Revision 1.5 by pcg, Sat Jan 31 03:27:45 2004 UTC vs.
Revision 1.6 by pcg, Fri Feb 13 12:16:21 2004 UTC

… …
63 * If successful, ttydev is set to the name of the slave device. 63 * If successful, ttydev is set to the name of the slave device.
64 * fd_tty _may_ also be set to an open fd to the slave device 64 * fd_tty _may_ also be set to an open fd to the slave device
65 */ 65 */
66/* EXTPROTO */ 66/* EXTPROTO */
67int 67int
68rxvt_get_pty(int *fd_tty, const char **ttydev) 68rxvt_get_pty (int *fd_tty, const char **ttydev)
69{ 69{
70 int pfd; 70 int pfd;
71 71
72#ifdef PTYS_ARE_OPENPTY 72#ifdef PTYS_ARE_OPENPTY
73 73
74 char tty_name[sizeof "/dev/pts/????\0"]; 74 char tty_name[sizeof "/dev/pts/????\0"];
75 75
76 if (openpty(&pfd, fd_tty, tty_name, NULL, NULL) != -1) 76 if (openpty (&pfd, fd_tty, tty_name, NULL, NULL) != -1)
77 { 77 {
78 *ttydev = strdup(tty_name); 78 *ttydev = strdup (tty_name);
79 return pfd; 79 return pfd;
80 } 80 }
81#endif 81#endif
82 82
83#ifdef PTYS_ARE__GETPTY 83#ifdef PTYS_ARE__GETPTY
84 *ttydev = _getpty(&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); 84 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0);
85 if (*ttydev != NULL) 85 if (*ttydev != NULL)
86 return pfd; 86 return pfd;
87#endif 87#endif
88 88
89#ifdef PTYS_ARE_GETPTY 89#ifdef PTYS_ARE_GETPTY
90 90
91 char *ptydev; 91 char *ptydev;
92 92
93 while ((ptydev = getpty()) != NULL) 93 while ((ptydev = getpty ()) != NULL)
94 if ((pfd = open(ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) 94 if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0)
95 { 95 {
96 *ttydev = ptydev; 96 *ttydev = ptydev;
97 return pfd; 97 return pfd;
98 } 98 }
99#endif 99#endif
… …
101#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) 101#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT)
102# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) 102# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX)
103 103
104 { 104 {
105# ifdef PTYS_ARE_GETPT 105# ifdef PTYS_ARE_GETPT
106 pfd = getpt(); 106 pfd = getpt ();
107# else 107# else
108 108
109 pfd = open("/dev/ptmx", O_RDWR | O_NOCTTY, 0); 109 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
110# endif 110# endif
111 111
112 if (pfd >= 0) 112 if (pfd >= 0)
113 { 113 {
114 if (grantpt(pfd) == 0 /* change slave permissions */ 114 if (grantpt (pfd) == 0 /* change slave permissions */
115 && unlockpt(pfd) == 0) 115 && unlockpt (pfd) == 0)
116 { /* slave now unlocked */ 116 { /* slave now unlocked */
117 *ttydev = ptsname(pfd); /* get slave's name */ 117 *ttydev = ptsname (pfd); /* get slave's name */
118 return pfd; 118 return pfd;
119 } 119 }
120 close(pfd); 120 close (pfd);
121 } 121 }
122 } 122 }
123# endif 123# endif
124#endif 124#endif
125 125
126#ifdef PTYS_ARE_PTC 126#ifdef PTYS_ARE_PTC
127 if ((pfd = open("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) 127 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0)
128 { 128 {
129 *ttydev = ttyname(pfd); 129 *ttydev = ttyname (pfd);
130 return pfd; 130 return pfd;
131 } 131 }
132#endif 132#endif
133 133
134#ifdef PTYS_ARE_CLONE 134#ifdef PTYS_ARE_CLONE
135 if ((pfd = open("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) 135 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0)
136 { 136 {
137 *ttydev = ptsname(pfd); 137 *ttydev = ptsname (pfd);
138 return pfd; 138 return pfd;
139 } 139 }
140#endif 140#endif
141 141
142#ifdef PTYS_ARE_NUMERIC 142#ifdef PTYS_ARE_NUMERIC
… …
144 int idx; 144 int idx;
145 char *c1, *c2; 145 char *c1, *c2;
146 char pty_name[] = "/dev/ptyp???"; 146 char pty_name[] = "/dev/ptyp???";
147 char tty_name[] = "/dev/ttyp???"; 147 char tty_name[] = "/dev/ttyp???";
148 148
149 c1 = &(pty_name[sizeof(pty_name) - 4]); 149 c1 = & (pty_name[sizeof (pty_name) - 4]);
150 c2 = &(tty_name[sizeof(tty_name) - 4]); 150 c2 = & (tty_name[sizeof (tty_name) - 4]);
151 for (idx = 0; idx < 256; idx++) 151 for (idx = 0; idx < 256; idx++)
152 { 152 {
153 sprintf(c1, "%d", idx); 153 sprintf (c1, "%d", idx);
154 sprintf(c2, "%d", idx); 154 sprintf (c2, "%d", idx);
155 if (access(tty_name, F_OK) < 0) 155 if (access (tty_name, F_OK) < 0)
156 { 156 {
157 idx = 256; 157 idx = 256;
158 break; 158 break;
159 } 159 }
160 if ((pfd = open(pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 160 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
161 { 161 {
162 if (access(tty_name, R_OK | W_OK) == 0) 162 if (access (tty_name, R_OK | W_OK) == 0)
163 { 163 {
164 *ttydev = strdup(tty_name); 164 *ttydev = strdup (tty_name);
165 return pfd; 165 return pfd;
166 } 166 }
167 close(pfd); 167 close (pfd);
168 } 168 }
169 } 169 }
170 } 170 }
171#endif 171#endif
172#ifdef PTYS_ARE_SEARCHED 172#ifdef PTYS_ARE_SEARCHED
… …
182# define PTYCHAR2 "0123456789abcdef" 182# define PTYCHAR2 "0123456789abcdef"
183# endif 183# endif
184 184
185 for (c1 = PTYCHAR1; *c1; c1++) 185 for (c1 = PTYCHAR1; *c1; c1++)
186 { 186 {
187 pty_name[(sizeof(pty_name) - 3)] = 187 pty_name[ (sizeof (pty_name) - 3)] =
188 tty_name[(sizeof(pty_name) - 3)] = *c1; 188 tty_name[ (sizeof (pty_name) - 3)] = *c1;
189 for (c2 = PTYCHAR2; *c2; c2++) 189 for (c2 = PTYCHAR2; *c2; c2++)
190 { 190 {
191 pty_name[(sizeof(pty_name) - 2)] = 191 pty_name[ (sizeof (pty_name) - 2)] =
192 tty_name[(sizeof(pty_name) - 2)] = *c2; 192 tty_name[ (sizeof (pty_name) - 2)] = *c2;
193 if ((pfd = open(pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 193 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
194 { 194 {
195 if (access(tty_name, R_OK | W_OK) == 0) 195 if (access (tty_name, R_OK | W_OK) == 0)
196 { 196 {
197 *ttydev = strdup(tty_name); 197 *ttydev = strdup (tty_name);
198 return pfd; 198 return pfd;
199 } 199 }
200 close(pfd); 200 close (pfd);
201 } 201 }
202 } 202 }
203 } 203 }
204 } 204 }
205#endif 205#endif
… …
226rxvt_control_tty (int fd_tty, const char *ttydev) 226rxvt_control_tty (int fd_tty, const char *ttydev)
227{ 227{
228#ifndef __QNX__ 228#ifndef __QNX__
229 int fd; 229 int fd;
230 230
231 D_TTY ((stderr, "rxvt_control_tty(): pid: %d, tty fd: %d, dev: %s", getpid(), fd_tty, ttydev)); 231 D_TTY ((stderr, "rxvt_control_tty (): pid: %d, tty fd: %d, dev: %s", getpid (), fd_tty, ttydev));
232 /* ---------------------------------------- */ 232 /* ---------------------------------------- */
233# ifdef HAVE_SETSID 233# ifdef HAVE_SETSID
234 setsid (); 234 setsid ();
235# endif 235# endif
236# if defined(HAVE_SETPGID) 236# if defined(HAVE_SETPGID)
… …
240# endif 240# endif
241 /* ---------------------------------------- */ 241 /* ---------------------------------------- */
242# ifdef TIOCNOTTY 242# ifdef TIOCNOTTY
243 243
244 fd = open ("/dev/tty", O_RDWR | O_NOCTTY); 244 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
245 D_TTY ((stderr, "rxvt_control_tty(): Voiding tty associations: previous=%s", fd < 0 ? "no" : "yes")); 245 D_TTY ((stderr, "rxvt_control_tty (): Voiding tty associations: previous=%s", fd < 0 ? "no" : "yes"));
246 if (fd >= 0) 246 if (fd >= 0)
247 { 247 {
248 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ 248 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */
249 close (fd); 249 close (fd);
250 } 250 }
251# endif 251# endif
252 /* ---------------------------------------- */ 252 /* ---------------------------------------- */
253 fd = open ("/dev/tty", O_RDWR | O_NOCTTY); 253 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
254 D_TTY ((stderr, "rxvt_control_tty(): /dev/tty has controlling tty? %s", fd < 0 ? "no (good)" : "yes (bad)")); 254 D_TTY ((stderr, "rxvt_control_tty (): /dev/tty has controlling tty? %s", fd < 0 ? "no (good)" : "yes (bad)"));
255 if (fd >= 0) 255 if (fd >= 0)
256 close (fd); /* ouch: still have controlling tty */ 256 close (fd); /* ouch: still have controlling tty */
257 /* ---------------------------------------- */ 257 /* ---------------------------------------- */
258#if defined(PTYS_ARE_PTMX) && defined(I_PUSH) 258#if defined(PTYS_ARE_PTMX) && defined(I_PUSH)
259 /* 259 /*
260 * Push STREAMS modules: 260 * Push STREAMS modules:
261 * ptem: pseudo-terminal hardware emulation module. 261 * ptem: pseudo-terminal hardware emulation module.
262 * ldterm: standard terminal line discipline. 262 * ldterm: standard terminal line discipline.
263 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. 263 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
264 * 264 *
265 * After we push the STREAMS modules, the first open() on the slave side 265 * After we push the STREAMS modules, the first open () on the slave side
266 * (i.e. the next section between the dashes giving us "tty opened OK") 266 * (i.e. the next section between the dashes giving us "tty opened OK")
267 * should make the "ptem" (or "ldterm" depending upon either which OS 267 * should make the "ptem" (or "ldterm" depending upon either which OS
268 * version or which set of manual pages you have) module give us a 268 * version or which set of manual pages you have) module give us a
269 * controlling terminal. We must already have close()d the master side 269 * controlling terminal. We must already have close ()d the master side
270 * fd in this child process before we push STREAMS modules on because the 270 * fd in this child process before we push STREAMS modules on because the
271 * documentation is really unclear about whether it is any close() on 271 * documentation is really unclear about whether it is any close () on
272 * the master side or the last close() - i.e. a proper STREAMS dismantling 272 * the master side or the last close () - i.e. a proper STREAMS dismantling
273 * close() - on the master side which causes a hang up to be sent 273 * close () - on the master side which causes a hang up to be sent
274 * through - Geoff Wing 274 * through - Geoff Wing
275 */ 275 */
276# ifdef HAVE_ISASTREAM 276# ifdef HAVE_ISASTREAM
277 if (isastream (fd_tty) == 1) 277 if (isastream (fd_tty) == 1)
278# endif 278# endif
279 { 279 {
280 D_TTY ((stderr, "rxvt_control_tty(): Pushing STREAMS modules")); 280 D_TTY ((stderr, "rxvt_control_tty (): Pushing STREAMS modules"));
281 ioctl (fd_tty, I_PUSH, "ptem"); 281 ioctl (fd_tty, I_PUSH, "ptem");
282 ioctl (fd_tty, I_PUSH, "ldterm"); 282 ioctl (fd_tty, I_PUSH, "ldterm");
283 ioctl (fd_tty, I_PUSH, "ttcompat"); 283 ioctl (fd_tty, I_PUSH, "ttcompat");
284 } 284 }
285#endif 285#endif
286 /* ---------------------------------------- */ 286 /* ---------------------------------------- */
287# if defined(TIOCSCTTY) 287# if defined(TIOCSCTTY)
288 fd = ioctl (fd_tty, TIOCSCTTY, NULL); 288 fd = ioctl (fd_tty, TIOCSCTTY, NULL);
289 D_TTY ((stderr, "rxvt_control_tty(): ioctl(..,TIOCSCTTY): %d", fd)); 289 D_TTY ((stderr, "rxvt_control_tty (): ioctl (..,TIOCSCTTY): %d", fd));
290# elif defined(TIOCSETCTTY) 290# elif defined(TIOCSETCTTY)
291 fd = ioctl (fd_tty, TIOCSETCTTY, NULL); 291 fd = ioctl (fd_tty, TIOCSETCTTY, NULL);
292 D_TTY ((stderr, "rxvt_control_tty(): ioctl(..,TIOCSETCTTY): %d", fd)); 292 D_TTY ((stderr, "rxvt_control_tty (): ioctl (..,TIOCSETCTTY): %d", fd));
293# else 293# else
294 fd = open (ttydev, O_RDWR); 294 fd = open (ttydev, O_RDWR);
295 D_TTY ((stderr, "rxvt_control_tty(): tty open%s", fd < 0 ? " failure" : "ed OK")); 295 D_TTY ((stderr, "rxvt_control_tty (): tty open%s", fd < 0 ? " failure" : "ed OK"));
296 if (fd >= 0) 296 if (fd >= 0)
297 close(fd); 297 close (fd);
298# endif 298# endif
299 /* ---------------------------------------- */ 299 /* ---------------------------------------- */
300 fd = open ("/dev/tty", O_WRONLY); 300 fd = open ("/dev/tty", O_WRONLY);
301 D_TTY ((stderr, "rxvt_control_tty(): do we have controlling tty now: %s", fd < 0 ? "no (fatal)" : "yes (good)")); 301 D_TTY ((stderr, "rxvt_control_tty (): do we have controlling tty now: %s", fd < 0 ? "no (fatal)" : "yes (good)"));
302 if (fd < 0) 302 if (fd < 0)
303 return -1; /* fatal */ 303 return -1; /* fatal */
304 close (fd); 304 close (fd);
305 /* ---------------------------------------- */ 305 /* ---------------------------------------- */
306 D_TTY ((stderr, "rxvt_control_tty(): tcgetpgrp(): %d getpgrp(): %d", tcgetpgrp(fd_tty), getpgrp())); 306 D_TTY ((stderr, "rxvt_control_tty (): tcgetpgrp (): %d getpgrp (): %d", tcgetpgrp (fd_tty), getpgrp ()));
307 /* ---------------------------------------- */ 307 /* ---------------------------------------- */
308#endif /* ! __QNX__ */ 308#endif /* ! __QNX__ */
309 309
310 return 0; 310 return 0;
311} 311}

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