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/cvs/rxvt-unicode/src/ptytty.C
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Comparing rxvt-unicode/src/ptytty.C (file contents):
Revision 1.43 by root, Tue Jan 17 16:50:42 2006 UTC vs.
Revision 1.44 by ayin, Tue Jan 17 17:59:31 2006 UTC

… …
64/* 64/*
65 * Returns pty file descriptor, or -1 on failure 65 * Returns pty file descriptor, or -1 on failure
66 * If successful, ttydev is set to the name of the slave device. 66 * If successful, ttydev is set to the name of the slave device.
67 * fd_tty _may_ also be set to an open fd to the slave device 67 * fd_tty _may_ also be set to an open fd to the slave device
68 */ 68 */
69static int 69static inline int
70get_pty (int *fd_tty, char **ttydev) 70get_pty_streams (int *fd_tty, char **ttydev)
71{ 71{
72#ifdef NO_SETOWNER_TTYDEV
72 int pfd; 73 int pfd;
73 74
75# ifdef PTYS_ARE_GETPT
76 pfd = getpt();
77# else
78# ifdef PTYS_ARE_POSIX
79 pfd = posix_openpt (O_RDWR);
80# else
81 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
82# endif
83# endif
84 if (pfd >= 0)
85 {
86 if (grantpt (pfd) == 0 /* change slave permissions */
87 && unlockpt (pfd) == 0)
88 { /* slave now unlocked */
89 *ttydev = strdup (ptsname (pfd)); /* get slave's name */
90 return pfd;
91 }
92 close (pfd);
93 }
94#endif
95 return -1;
96}
97
98static inline int
99get_pty_openpty (int *fd_tty, char **ttydev)
100{
74#ifdef PTYS_ARE_OPENPTY 101#ifdef PTYS_ARE_OPENPTY
102 int pfd;
103 int res;
75 char tty_name[sizeof "/dev/pts/????\0"]; 104 char tty_name[sizeof "/dev/pts/????\0"];
76 105
77 int res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); 106 res = openpty (&pfd, fd_tty, tty_name, NULL, NULL);
78
79 if (res != -1) 107 if (res != -1)
80 { 108 {
81 *ttydev = strdup (tty_name); 109 *ttydev = strdup (tty_name);
82 return pfd; 110 return pfd;
83 } 111 }
84#endif 112#endif
113 return -1;
114}
85 115
116static inline int
117get_pty__getpty (int *fd_tty, char **ttydev)
118{
86#ifdef PTYS_ARE__GETPTY 119#ifdef PTYS_ARE__GETPTY
120 int pfd;
121
87 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); 122 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0);
88 if (*ttydev != NULL) 123 if (*ttydev != NULL)
89 return pfd; 124 return pfd;
90#endif 125#endif
126 return -1;
127}
91 128
92#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) 129static inline int
93# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX) 130get_pty_ptc (int *fd_tty, char **ttydev)
94 131{
95 {
96# ifdef PTYS_ARE_GETPT
97 pfd = getpt();
98# else
99# ifdef PTYS_ARE_POSIX
100 pfd = posix_openpt (O_RDWR);
101# else
102 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
103# endif
104# endif
105
106 if (pfd >= 0)
107 {
108 if (grantpt (pfd) == 0 /* change slave permissions */
109 && unlockpt (pfd) == 0)
110 { /* slave now unlocked */
111 *ttydev = strdup (ptsname (pfd)); /* get slave's name */
112 return pfd;
113 }
114 close (pfd);
115 }
116 }
117# endif
118#endif
119
120#ifdef PTYS_ARE_PTC 132#ifdef PTYS_ARE_PTC
133 int pfd;
134
121 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) 135 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0)
122 { 136 {
123 *ttydev = strdup (ttyname (pfd)); 137 *ttydev = strdup (ttyname (pfd));
124 return pfd; 138 return pfd;
125 } 139 }
126#endif 140#endif
141 return -1;
142}
127 143
144static inline int
145get_pty_clone (int *fd_tty, char **ttydev)
146{
128#ifdef PTYS_ARE_CLONE 147#ifdef PTYS_ARE_CLONE
148 int pfd;
149
129 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) 150 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0)
130 { 151 {
131 *ttydev = strdup (ptsname (pfd)); 152 *ttydev = strdup (ptsname (pfd));
132 return pfd; 153 return pfd;
133 } 154 }
134#endif 155#endif
156 return -1;
157}
135 158
159static inline int
160get_pty_numeric (int *fd_tty, char **ttydev)
161{
136#ifdef PTYS_ARE_NUMERIC 162#ifdef PTYS_ARE_NUMERIC
137 { 163 int pfd;
138 int idx; 164 int idx;
139 char *c1, *c2; 165 char *c1, *c2;
140 char pty_name[] = "/dev/ptyp???"; 166 char pty_name[] = "/dev/ptyp???";
141 char tty_name[] = "/dev/ttyp???"; 167 char tty_name[] = "/dev/ttyp???";
142 168
… …
161 } 187 }
162 188
163 close (pfd); 189 close (pfd);
164 } 190 }
165 } 191 }
166 }
167#endif 192#endif
193 return -1;
194}
168 195
196static inline int
197get_pty_searched (int *fd_tty, char **ttydev)
198{
169#ifdef PTYS_ARE_SEARCHED 199#ifdef PTYS_ARE_SEARCHED
170 { 200# ifndef PTYCHAR1
201# define PTYCHAR1 "pqrstuvwxyz"
202# endif
203# ifndef PTYCHAR2
204# define PTYCHAR2 "0123456789abcdef"
205# endif
206 int pfd;
171 const char *c1, *c2; 207 const char *c1, *c2;
172 char pty_name[] = "/dev/pty??"; 208 char pty_name[] = "/dev/pty??";
173 char tty_name[] = "/dev/tty??"; 209 char tty_name[] = "/dev/tty??";
174
175# ifndef PTYCHAR1
176# define PTYCHAR1 "pqrstuvwxyz"
177# endif
178# ifndef PTYCHAR2
179# define PTYCHAR2 "0123456789abcdef"
180# endif
181 210
182 for (c1 = PTYCHAR1; *c1; c1++) 211 for (c1 = PTYCHAR1; *c1; c1++)
183 { 212 {
184 pty_name[ (sizeof (pty_name) - 3)] = 213 pty_name[ (sizeof (pty_name) - 3)] =
185 tty_name[ (sizeof (pty_name) - 3)] = *c1; 214 tty_name[ (sizeof (pty_name) - 3)] = *c1;
… …
197 226
198 close (pfd); 227 close (pfd);
199 } 228 }
200 } 229 }
201 } 230 }
202 }
203#endif 231#endif
232 return -1;
233}
204 234
235static int
236get_pty (int *fd_tty, char **ttydev)
237{
238 int pfd;
239
240 if ((pfd = get_pty_streams (fd_tty, ttydev)) != -1
241 || (pfd = get_pty_openpty (fd_tty, ttydev)) != -1
242 || (pfd = get_pty__getpty (fd_tty, ttydev)) != -1
243 || (pfd = get_pty_ptc (fd_tty, ttydev)) != -1
244 || (pfd = get_pty_clone (fd_tty, ttydev)) != -1
245 || (pfd = get_pty_numeric (fd_tty, ttydev)) != -1
246 || (pfd = get_pty_searched (fd_tty, ttydev)) != -1)
247 return pfd;
205 return -1; 248 return -1;
206} 249}
207 250
208/*----------------------------------------------------------------------*/ 251/*----------------------------------------------------------------------*/
209/* 252/*

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