| … | |
… | |
| 63 | |
63 | |
| 64 | /* ------------------------------------------------------------------------- * |
64 | /* ------------------------------------------------------------------------- * |
| 65 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
65 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
| 66 | * ------------------------------------------------------------------------- */ |
66 | * ------------------------------------------------------------------------- */ |
| 67 | /* |
67 | /* |
| 68 | * Returns pty file descriptor, or -1 on failure |
68 | * Returns pty file descriptor, or -1 on failure |
| 69 | * If successful, ttydev is set to the name of the slave device. |
69 | * If successful, ttydev is set to the name of the slave device. |
| 70 | * fd_tty _may_ also be set to an open fd to the slave device |
70 | * fd_tty _may_ also be set to an open fd to the slave device |
| 71 | */ |
71 | */ |
| 72 | #if defined(UNIX98_PTY) |
72 | #if defined(UNIX98_PTY) |
| 73 | |
73 | |
| … | |
… | |
| 86 | |
86 | |
| 87 | if (pfd >= 0) |
87 | if (pfd >= 0) |
| 88 | { |
88 | { |
| 89 | if (grantpt (pfd) == 0 /* change slave permissions */ |
89 | if (grantpt (pfd) == 0 /* change slave permissions */ |
| 90 | && unlockpt (pfd) == 0) |
90 | && unlockpt (pfd) == 0) |
|
|
91 | { |
| 91 | { /* slave now unlocked */ |
92 | /* slave now unlocked */ |
| 92 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
93 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
| 93 | return pfd; |
94 | return pfd; |
| 94 | } |
95 | } |
| 95 | |
96 | |
| 96 | close (pfd); |
97 | close (pfd); |
| … | |
… | |
| 104 | static int |
105 | static int |
| 105 | get_pty (int *fd_tty, char **ttydev) |
106 | get_pty (int *fd_tty, char **ttydev) |
| 106 | { |
107 | { |
| 107 | int pfd; |
108 | int pfd; |
| 108 | int res; |
109 | int res; |
| 109 | char tty_name[32]; |
110 | |
| 110 | |
|
|
| 111 | res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
111 | res = openpty (&pfd, fd_tty, NULL, NULL, NULL); |
| 112 | |
112 | |
| 113 | if (res != -1) |
113 | if (res != -1) |
| 114 | { |
114 | { |
| 115 | *ttydev = strdup (tty_name); |
115 | *ttydev = strdup (ttyname (*fd_tty)); |
| 116 | return pfd; |
116 | return pfd; |
| 117 | } |
117 | } |
| 118 | |
118 | |
| 119 | return -1; |
119 | return -1; |
| 120 | } |
120 | } |
| … | |
… | |
| 123 | |
123 | |
| 124 | static int |
124 | static int |
| 125 | get_pty (int *fd_tty, char **ttydev) |
125 | get_pty (int *fd_tty, char **ttydev) |
| 126 | { |
126 | { |
| 127 | int pfd; |
127 | int pfd; |
|
|
128 | char *slave; |
| 128 | |
129 | |
| 129 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
130 | slave = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
| 130 | |
131 | |
| 131 | if (*ttydev != NULL) |
132 | if (slave != NULL) { |
|
|
133 | *ttydev = strdup (slave); |
| 132 | return pfd; |
134 | return pfd; |
|
|
135 | } |
| 133 | |
136 | |
| 134 | return -1; |
137 | return -1; |
| 135 | } |
138 | } |
| 136 | |
139 | |
| 137 | #elif defined(HAVE_DEV_PTC) |
140 | #elif defined(HAVE_DEV_PTC) |
| … | |
… | |
| 206 | |
209 | |
| 207 | #endif |
210 | #endif |
| 208 | |
211 | |
| 209 | /*----------------------------------------------------------------------*/ |
212 | /*----------------------------------------------------------------------*/ |
| 210 | /* |
213 | /* |
| 211 | * Returns tty file descriptor, or -1 on failure |
214 | * Returns tty file descriptor, or -1 on failure |
| 212 | */ |
215 | */ |
| 213 | static int |
216 | static int |
| 214 | get_tty (char *ttydev) |
217 | get_tty (char *ttydev) |
| 215 | { |
218 | { |
| 216 | return open (ttydev, O_RDWR | O_NOCTTY, 0); |
219 | return open (ttydev, O_RDWR | O_NOCTTY, 0); |
| … | |
… | |
| 221 | * Make our tty a controlling tty so that /dev/tty points to us |
224 | * Make our tty a controlling tty so that /dev/tty points to us |
| 222 | */ |
225 | */ |
| 223 | static int |
226 | static int |
| 224 | control_tty (int fd_tty) |
227 | control_tty (int fd_tty) |
| 225 | { |
228 | { |
|
|
229 | int fd; |
|
|
230 | |
| 226 | setsid (); |
231 | setsid (); |
| 227 | |
232 | |
| 228 | #if defined(HAVE_DEV_PTMX) && defined(I_PUSH) |
233 | #if defined(HAVE_DEV_PTMX) && defined(I_PUSH) |
| 229 | /* |
234 | /* |
| 230 | * Push STREAMS modules: |
235 | * Push STREAMS modules: |
| … | |
… | |
| 251 | ioctl (fd_tty, I_PUSH, "ldterm"); |
256 | ioctl (fd_tty, I_PUSH, "ldterm"); |
| 252 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
257 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
| 253 | } |
258 | } |
| 254 | #endif |
259 | #endif |
| 255 | |
260 | |
|
|
261 | #ifdef TIOCSCTTY |
| 256 | ioctl (fd_tty, TIOCSCTTY, NULL); |
262 | ioctl (fd_tty, TIOCSCTTY, NULL); |
|
|
263 | #else |
|
|
264 | fd = open (ttyname (fd_tty), O_RDWR); |
|
|
265 | if (fd >= 0) |
|
|
266 | close (fd); |
|
|
267 | #endif |
| 257 | |
268 | |
| 258 | int fd = open ("/dev/tty", O_WRONLY); |
269 | fd = open ("/dev/tty", O_WRONLY); |
| 259 | if (fd < 0) |
270 | if (fd < 0) |
| 260 | return -1; /* fatal */ |
271 | return -1; /* fatal */ |
| 261 | |
272 | |
| 262 | close (fd); |
273 | close (fd); |
| 263 | |
274 | |
| … | |
… | |
| 315 | { |
326 | { |
| 316 | #ifdef TTY_GID_SUPPORT |
327 | #ifdef TTY_GID_SUPPORT |
| 317 | struct group *gr = getgrnam ("tty"); |
328 | struct group *gr = getgrnam ("tty"); |
| 318 | |
329 | |
| 319 | if (gr) |
330 | if (gr) |
|
|
331 | { |
| 320 | { /* change group ownership of tty to "tty" */ |
332 | /* change group ownership of tty to "tty" */ |
| 321 | mode = S_IRUSR | S_IWUSR | S_IWGRP; |
333 | mode = S_IRUSR | S_IWUSR | S_IWGRP; |
| 322 | gid = gr->gr_gid; |
334 | gid = gr->gr_gid; |
| 323 | } |
335 | } |
| 324 | else |
336 | else |
| 325 | #endif /* TTY_GID_SUPPORT */ |
337 | #endif /* TTY_GID_SUPPORT */ |
| 326 | { |
338 | { |
| 327 | mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; |
339 | mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; |
| 328 | gid = 0; |
340 | gid = 0; |
| 329 | } |
341 | } |
| 330 | } |
342 | } |
