… | |
… | |
22 | *---------------------------------------------------------------------*/ |
22 | *---------------------------------------------------------------------*/ |
23 | |
23 | |
24 | #include "../config.h" /* NECESSARY */ |
24 | #include "../config.h" /* NECESSARY */ |
25 | #include "rxvt.h" |
25 | #include "rxvt.h" |
26 | |
26 | |
27 | # include <cstdlib> |
27 | #include <cstdlib> |
28 | # include <cstring> |
28 | #include <cstring> |
29 | |
29 | |
30 | #ifdef HAVE_SYS_TYPES_H |
|
|
31 | # include <sys/types.h> |
30 | #include <sys/types.h> |
32 | #endif |
31 | #include <sys/socket.h> |
33 | #ifdef HAVE_UNISTD_H |
|
|
34 | # include <unistd.h> |
32 | #include <unistd.h> |
35 | #endif |
|
|
36 | #ifdef HAVE_FCNTL_H |
|
|
37 | # include <fcntl.h> |
33 | #include <fcntl.h> |
38 | #endif |
34 | |
39 | #ifdef HAVE_SYS_IOCTL_H |
35 | #ifdef HAVE_SYS_IOCTL_H |
40 | # include <sys/ioctl.h> |
36 | # include <sys/ioctl.h> |
41 | #endif |
37 | #endif |
42 | #if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) |
38 | #if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) |
43 | # include <sys/stropts.h> /* for I_PUSH */ |
39 | # include <sys/stropts.h> /* for I_PUSH */ |
… | |
… | |
53 | # include <util.h> |
49 | # include <util.h> |
54 | #endif |
50 | #endif |
55 | |
51 | |
56 | #include <cstdio> |
52 | #include <cstdio> |
57 | #include <grp.h> |
53 | #include <grp.h> |
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54 | |
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55 | #include "rxvtutil.h" |
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56 | #include "fdpass.h" |
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57 | #include "ptytty.h" |
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58 | |
|
|
59 | ///////////////////////////////////////////////////////////////////////////// |
58 | |
60 | |
59 | /* ------------------------------------------------------------------------- * |
61 | /* ------------------------------------------------------------------------- * |
60 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
62 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
61 | * ------------------------------------------------------------------------- */ |
63 | * ------------------------------------------------------------------------- */ |
62 | /* |
64 | /* |
63 | * Returns pty file descriptor, or -1 on failure |
65 | * Returns pty file descriptor, or -1 on failure |
64 | * 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. |
65 | * 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 |
66 | */ |
68 | */ |
67 | static int |
69 | static inline int |
68 | get_pty (int *fd_tty, char **ttydev) |
70 | get_pty_streams (int *fd_tty, char **ttydev) |
69 | { |
71 | { |
|
|
72 | #ifdef NO_SETOWNER_TTYDEV |
70 | int pfd; |
73 | int pfd; |
71 | |
74 | |
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75 | # if defined(PTYS_ARE_GETPT) |
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76 | pfd = getpt(); |
|
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77 | # elif defined(PTYS_ARE_POSIX) |
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78 | pfd = posix_openpt (O_RDWR); |
|
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79 | # else |
|
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80 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
|
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81 | # endif |
|
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82 | if (pfd >= 0) |
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83 | { |
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84 | if (grantpt (pfd) == 0 /* change slave permissions */ |
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85 | && unlockpt (pfd) == 0) |
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86 | { /* slave now unlocked */ |
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87 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
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88 | return pfd; |
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89 | } |
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90 | |
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91 | close (pfd); |
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92 | } |
|
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93 | #endif |
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94 | |
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95 | return -1; |
|
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96 | } |
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97 | |
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98 | static inline int |
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99 | get_pty_openpty (int *fd_tty, char **ttydev) |
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100 | { |
72 | #ifdef PTYS_ARE_OPENPTY |
101 | #ifdef PTYS_ARE_OPENPTY |
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102 | int pfd; |
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103 | int res; |
73 | char tty_name[sizeof "/dev/pts/????\0"]; |
104 | char tty_name[sizeof "/dev/pts/????\0"]; |
74 | |
105 | |
75 | rxvt_privileges(RESTORE); |
|
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76 | int res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
106 | res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
77 | rxvt_privileges(IGNORE); |
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78 | |
|
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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 |
85 | |
113 | |
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114 | return -1; |
|
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115 | } |
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116 | |
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117 | static inline int |
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118 | get_pty__getpty (int *fd_tty, char **ttydev) |
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119 | { |
86 | #ifdef PTYS_ARE__GETPTY |
120 | #ifdef PTYS_ARE__GETPTY |
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121 | int pfd; |
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122 | |
87 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
123 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
88 | if (*ttydev != NULL) |
124 | if (*ttydev != NULL) |
89 | return pfd; |
125 | return pfd; |
90 | #endif |
126 | #endif |
91 | |
127 | |
92 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
128 | return -1; |
93 | # if defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX) |
129 | } |
94 | |
130 | |
95 | { |
131 | static inline int |
96 | # ifdef PTYS_ARE_POSIX |
132 | get_pty_ptc (int *fd_tty, char **ttydev) |
97 | pfd = posix_openpt (O_RDWR); |
133 | { |
98 | # else |
|
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99 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
|
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100 | # endif |
|
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101 | |
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102 | if (pfd >= 0) |
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103 | { |
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104 | if (grantpt (pfd) == 0 /* change slave permissions */ |
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105 | && unlockpt (pfd) == 0) |
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106 | { /* slave now unlocked */ |
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107 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
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108 | return pfd; |
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109 | } |
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110 | close (pfd); |
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111 | } |
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112 | } |
|
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113 | # endif |
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114 | #endif |
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115 | |
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116 | #ifdef PTYS_ARE_PTC |
134 | #ifdef PTYS_ARE_PTC |
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135 | int pfd; |
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136 | |
117 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
137 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
118 | { |
138 | { |
119 | *ttydev = strdup (ttyname (pfd)); |
139 | *ttydev = strdup (ttyname (pfd)); |
120 | return pfd; |
140 | return pfd; |
121 | } |
141 | } |
122 | #endif |
142 | #endif |
123 | |
143 | |
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144 | return -1; |
|
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145 | } |
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146 | |
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147 | static inline int |
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148 | get_pty_clone (int *fd_tty, char **ttydev) |
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149 | { |
124 | #ifdef PTYS_ARE_CLONE |
150 | #ifdef PTYS_ARE_CLONE |
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151 | int pfd; |
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152 | |
125 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
153 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
126 | { |
154 | { |
127 | *ttydev = strdup (ptsname (pfd)); |
155 | *ttydev = strdup (ptsname (pfd)); |
128 | return pfd; |
156 | return pfd; |
129 | } |
157 | } |
130 | #endif |
158 | #endif |
131 | |
159 | |
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160 | return -1; |
|
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161 | } |
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162 | |
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163 | static inline int |
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164 | get_pty_numeric (int *fd_tty, char **ttydev) |
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165 | { |
132 | #ifdef PTYS_ARE_NUMERIC |
166 | #ifdef PTYS_ARE_NUMERIC |
133 | { |
167 | int pfd; |
134 | int idx; |
168 | int idx; |
135 | char *c1, *c2; |
169 | char *c1, *c2; |
136 | char pty_name[] = "/dev/ptyp???"; |
170 | char pty_name[] = "/dev/ptyp???"; |
137 | char tty_name[] = "/dev/ttyp???"; |
171 | char tty_name[] = "/dev/ttyp???"; |
138 | |
172 | |
139 | c1 = &(pty_name[sizeof (pty_name) - 4]); |
173 | c1 = &(pty_name[sizeof (pty_name) - 4]); |
140 | c2 = &(tty_name[sizeof (tty_name) - 4]); |
174 | c2 = &(tty_name[sizeof (tty_name) - 4]); |
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175 | |
141 | for (idx = 0; idx < 256; idx++) |
176 | for (idx = 0; idx < 256; idx++) |
142 | { |
177 | { |
143 | sprintf (c1, "%d", idx); |
178 | sprintf (c1, "%d", idx); |
144 | sprintf (c2, "%d", idx); |
179 | sprintf (c2, "%d", idx); |
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180 | |
145 | if (access (tty_name, F_OK) < 0) |
181 | if (access (tty_name, F_OK) < 0) |
146 | { |
182 | { |
147 | idx = 256; |
183 | idx = 256; |
148 | break; |
184 | break; |
149 | } |
185 | } |
150 | |
186 | |
151 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
187 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
152 | { |
188 | { |
153 | if (access (tty_name, R_OK | W_OK) == 0) |
189 | if (access (tty_name, R_OK | W_OK) == 0) |
154 | { |
190 | { |
155 | *ttydev = strdup (tty_name); |
191 | *ttydev = strdup (tty_name); |
156 | return pfd; |
192 | return pfd; |
157 | } |
193 | } |
158 | |
194 | |
159 | close (pfd); |
195 | close (pfd); |
160 | } |
196 | } |
161 | } |
197 | } |
162 | } |
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163 | #endif |
198 | #endif |
164 | |
199 | |
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200 | return -1; |
|
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201 | } |
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202 | |
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203 | static inline int |
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204 | get_pty_searched (int *fd_tty, char **ttydev) |
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205 | { |
165 | #ifdef PTYS_ARE_SEARCHED |
206 | #ifdef PTYS_ARE_SEARCHED |
166 | { |
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167 | const char *c1, *c2; |
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168 | char pty_name[] = "/dev/pty??"; |
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169 | char tty_name[] = "/dev/tty??"; |
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170 | |
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171 | # ifndef PTYCHAR1 |
207 | # ifndef PTYCHAR1 |
172 | # define PTYCHAR1 "pqrstuvwxyz" |
208 | # define PTYCHAR1 "pqrstuvwxyz" |
173 | # endif |
209 | # endif |
174 | # ifndef PTYCHAR2 |
210 | # ifndef PTYCHAR2 |
175 | # define PTYCHAR2 "0123456789abcdef" |
211 | # define PTYCHAR2 "0123456789abcdef" |
176 | # endif |
212 | # endif |
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213 | int pfd; |
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214 | const char *c1, *c2; |
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215 | char pty_name[] = "/dev/pty??"; |
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216 | char tty_name[] = "/dev/tty??"; |
177 | |
217 | |
178 | for (c1 = PTYCHAR1; *c1; c1++) |
218 | for (c1 = PTYCHAR1; *c1; c1++) |
179 | { |
219 | { |
180 | pty_name[ (sizeof (pty_name) - 3)] = |
220 | pty_name[ (sizeof (pty_name) - 3)] = |
181 | tty_name[ (sizeof (pty_name) - 3)] = *c1; |
221 | tty_name[ (sizeof (pty_name) - 3)] = *c1; |
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222 | |
182 | for (c2 = PTYCHAR2; *c2; c2++) |
223 | for (c2 = PTYCHAR2; *c2; c2++) |
183 | { |
224 | { |
184 | pty_name[ (sizeof (pty_name) - 2)] = |
225 | pty_name[ (sizeof (pty_name) - 2)] = |
185 | tty_name[ (sizeof (pty_name) - 2)] = *c2; |
226 | tty_name[ (sizeof (pty_name) - 2)] = *c2; |
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227 | |
186 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
228 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
187 | { |
229 | { |
188 | if (access (tty_name, R_OK | W_OK) == 0) |
230 | if (access (tty_name, R_OK | W_OK) == 0) |
189 | { |
231 | { |
190 | *ttydev = strdup (tty_name); |
232 | *ttydev = strdup (tty_name); |
191 | return pfd; |
233 | return pfd; |
192 | } |
234 | } |
193 | |
235 | |
194 | close (pfd); |
236 | close (pfd); |
195 | } |
237 | } |
196 | } |
238 | } |
197 | } |
239 | } |
198 | } |
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199 | #endif |
240 | #endif |
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241 | |
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242 | return -1; |
|
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243 | } |
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244 | |
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245 | static int |
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246 | get_pty (int *fd_tty, char **ttydev) |
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247 | { |
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248 | int pfd; |
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249 | |
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250 | if ((pfd = get_pty_streams (fd_tty, ttydev)) != -1 |
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251 | || (pfd = get_pty_openpty (fd_tty, ttydev)) != -1 |
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252 | || (pfd = get_pty__getpty (fd_tty, ttydev)) != -1 |
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253 | || (pfd = get_pty_ptc (fd_tty, ttydev)) != -1 |
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254 | || (pfd = get_pty_clone (fd_tty, ttydev)) != -1 |
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255 | || (pfd = get_pty_numeric (fd_tty, ttydev)) != -1 |
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256 | || (pfd = get_pty_searched (fd_tty, ttydev)) != -1) |
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257 | return pfd; |
200 | |
258 | |
201 | return -1; |
259 | return -1; |
202 | } |
260 | } |
203 | |
261 | |
204 | /*----------------------------------------------------------------------*/ |
262 | /*----------------------------------------------------------------------*/ |
… | |
… | |
214 | /*----------------------------------------------------------------------*/ |
272 | /*----------------------------------------------------------------------*/ |
215 | /* |
273 | /* |
216 | * Make our tty a controlling tty so that /dev/tty points to us |
274 | * Make our tty a controlling tty so that /dev/tty points to us |
217 | */ |
275 | */ |
218 | static int |
276 | static int |
219 | control_tty (int fd_tty, const char *ttydev) |
277 | control_tty (int fd_tty) |
220 | { |
278 | { |
221 | #ifndef __QNX__ |
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222 | int fd; |
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223 | |
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224 | /* ---------------------------------------- */ |
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225 | # ifdef HAVE_SETSID |
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226 | setsid (); |
279 | setsid (); |
227 | # endif |
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228 | # if defined(HAVE_SETPGID) |
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229 | setpgid (0, 0); |
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230 | # elif defined(HAVE_SETPGRP) |
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231 | setpgrp (0, 0); |
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232 | # endif |
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233 | |
280 | |
234 | /* ---------------------------------------- */ |
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235 | # ifdef TIOCNOTTY |
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236 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
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237 | if (fd >= 0) |
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238 | { |
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239 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
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240 | close (fd); |
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241 | } |
|
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242 | # endif |
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243 | |
|
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244 | /* ---------------------------------------- */ |
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245 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
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246 | if (fd >= 0) |
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247 | close (fd); /* ouch: still have controlling tty */ |
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248 | |
|
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249 | /* ---------------------------------------- */ |
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250 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
281 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
251 | /* |
282 | /* |
252 | * Push STREAMS modules: |
283 | * Push STREAMS modules: |
253 | * ptem: pseudo-terminal hardware emulation module. |
284 | * ptem: pseudo-terminal hardware emulation module. |
254 | * ldterm: standard terminal line discipline. |
285 | * ldterm: standard terminal line discipline. |
… | |
… | |
272 | ioctl (fd_tty, I_PUSH, "ptem"); |
303 | ioctl (fd_tty, I_PUSH, "ptem"); |
273 | ioctl (fd_tty, I_PUSH, "ldterm"); |
304 | ioctl (fd_tty, I_PUSH, "ldterm"); |
274 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
305 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
275 | } |
306 | } |
276 | #endif |
307 | #endif |
277 | /* ---------------------------------------- */ |
308 | |
278 | # if defined(TIOCSCTTY) |
|
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279 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
309 | ioctl (fd_tty, TIOCSCTTY, NULL); |
280 | # elif defined(TIOCSETCTTY) |
310 | |
281 | fd = ioctl (fd_tty, TIOCSETCTTY, NULL); |
|
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282 | # else |
|
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283 | fd = open (ttydev, O_RDWR); |
|
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284 | if (fd >= 0) |
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285 | close (fd); |
|
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286 | # endif |
|
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287 | /* ---------------------------------------- */ |
|
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288 | fd = open ("/dev/tty", O_WRONLY); |
311 | int fd = open ("/dev/tty", O_WRONLY); |
289 | if (fd < 0) |
312 | if (fd < 0) |
290 | return -1; /* fatal */ |
313 | return -1; /* fatal */ |
|
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314 | |
291 | close (fd); |
315 | close (fd); |
292 | /* ---------------------------------------- */ |
|
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293 | #endif /* ! __QNX__ */ |
|
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294 | |
316 | |
295 | return 0; |
317 | return 0; |
296 | } |
318 | } |
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319 | |
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320 | void |
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321 | rxvt_ptytty::close_tty () |
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322 | { |
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323 | if (tty < 0) |
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324 | return; |
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325 | |
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326 | close (tty); |
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327 | tty = -1; |
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328 | } |
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329 | |
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330 | bool |
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331 | rxvt_ptytty::make_controlling_tty () |
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332 | { |
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333 | return control_tty (tty) >= 0; |
|
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334 | } |
|
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335 | |
|
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336 | void |
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337 | rxvt_ptytty::set_utf8_mode (bool on) |
|
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338 | { |
|
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339 | #ifdef IUTF8 |
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340 | if (pty < 0) |
|
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341 | return; |
|
|
342 | |
|
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343 | struct termios tio; |
|
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344 | |
|
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345 | if (tcgetattr (pty, &tio) != -1) |
|
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346 | { |
|
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347 | tcflag_t new_cflag = tio.c_iflag; |
|
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348 | |
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349 | if (on) |
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350 | new_cflag |= IUTF8; |
|
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351 | else |
|
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352 | new_cflag &= ~IUTF8; |
|
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353 | |
|
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354 | if (new_cflag != tio.c_iflag) |
|
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355 | { |
|
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356 | tio.c_iflag = new_cflag; |
|
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357 | tcsetattr (pty, TCSANOW, &tio); |
|
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358 | } |
|
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359 | } |
|
|
360 | #endif |
|
|
361 | } |
|
|
362 | |
|
|
363 | ///////////////////////////////////////////////////////////////////////////// |
297 | |
364 | |
298 | #ifndef NO_SETOWNER_TTYDEV |
365 | #ifndef NO_SETOWNER_TTYDEV |
299 | static struct ttyconf { |
366 | static struct ttyconf { |
300 | gid_t gid; |
367 | gid_t gid; |
301 | mode_t mode; |
368 | mode_t mode; |
… | |
… | |
312 | } |
379 | } |
313 | else |
380 | else |
314 | #endif /* TTY_GID_SUPPORT */ |
381 | #endif /* TTY_GID_SUPPORT */ |
315 | { |
382 | { |
316 | mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; |
383 | mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; |
317 | gid = getgid (); |
384 | gid = 0; |
318 | } |
385 | } |
319 | } |
386 | } |
320 | } ttyconf; |
387 | } ttyconf; |
321 | |
388 | |
|
|
389 | ///////////////////////////////////////////////////////////////////////////// |
|
|
390 | |
322 | void |
391 | void |
323 | rxvt_ptytty::privileges (rxvt_privaction action) |
392 | rxvt_ptytty_unix::privileges (rxvt_privaction action) |
324 | { |
393 | { |
325 | if (!name || !*name) |
394 | if (!name || !*name) |
326 | return; |
395 | return; |
327 | |
396 | |
328 | rxvt_privileges (RESTORE); |
|
|
329 | |
|
|
330 | if (action == SAVE) |
397 | if (action == SAVE) |
331 | { |
398 | { |
332 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
399 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
333 | /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ |
400 | chmod (name, ttyconf.mode); |
334 | if (lstat (name, &savestat) < 0) /* you lose out */ |
401 | # ifdef HAVE_REVOKE |
335 | ; |
402 | revoke (name); |
336 | else |
|
|
337 | # endif |
403 | # endif |
338 | { |
|
|
339 | saved = true; |
|
|
340 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
|
|
341 | chmod (name, ttyconf.mode); |
|
|
342 | # ifdef HAVE_REVOKE |
|
|
343 | revoke (name); |
|
|
344 | # endif |
|
|
345 | } |
|
|
346 | } |
404 | } |
347 | else |
405 | else |
348 | { /* action == RESTORE */ |
406 | { /* action == RESTORE */ |
349 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
407 | chmod (name, RESTORE_TTY_MODE); |
350 | if (saved) |
|
|
351 | { |
|
|
352 | chmod (name, savestat.st_mode); |
|
|
353 | chown (name, savestat.st_uid, savestat.st_gid); |
|
|
354 | } |
|
|
355 | # else |
|
|
356 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
|
|
357 | chown (name, 0, 0); |
408 | chown (name, 0, ttyconf.gid); |
|
|
409 | } |
|
|
410 | } |
358 | # endif |
411 | #endif |
359 | |
412 | |
360 | } |
|
|
361 | |
|
|
362 | rxvt_privileges (IGNORE); |
|
|
363 | } |
|
|
364 | #endif |
|
|
365 | |
|
|
366 | rxvt_ptytty::rxvt_ptytty () |
413 | rxvt_ptytty_unix::rxvt_ptytty_unix () |
367 | { |
414 | { |
368 | pty = tty = -1; |
415 | pty = tty = -1; |
369 | name = 0; |
416 | name = 0; |
370 | #ifndef NO_SETOWNER_TTYDEV |
417 | #if UTMP_SUPPORT |
371 | saved = false; |
418 | cmd_pid = 0; |
372 | #endif |
419 | #endif |
373 | } |
420 | } |
374 | |
421 | |
375 | rxvt_ptytty::~rxvt_ptytty () |
422 | rxvt_ptytty_unix::~rxvt_ptytty_unix () |
376 | { |
423 | { |
|
|
424 | #if UTMP_SUPPORT |
|
|
425 | logout (); |
|
|
426 | #endif |
377 | put (); |
427 | put (); |
378 | } |
428 | } |
379 | |
429 | |
380 | void |
430 | void |
381 | |
|
|
382 | rxvt_ptytty::close_tty () |
|
|
383 | { |
|
|
384 | if (tty < 0) |
|
|
385 | return; |
|
|
386 | |
|
|
387 | close (tty); |
|
|
388 | tty = -1; |
|
|
389 | } |
|
|
390 | |
|
|
391 | void |
|
|
392 | rxvt_ptytty::put () |
431 | rxvt_ptytty_unix::put () |
393 | { |
432 | { |
394 | #ifndef NO_SETOWNER_TTYDEV |
433 | #ifndef NO_SETOWNER_TTYDEV |
395 | privileges (RESTORE); |
434 | privileges (RESTORE); |
396 | #endif |
435 | #endif |
397 | |
436 | |
… | |
… | |
402 | pty = tty = -1; |
441 | pty = tty = -1; |
403 | name = 0; |
442 | name = 0; |
404 | } |
443 | } |
405 | |
444 | |
406 | bool |
445 | bool |
407 | rxvt_ptytty::make_controlling_tty () |
|
|
408 | { |
|
|
409 | return control_tty (tty, name) >= 0; |
|
|
410 | } |
|
|
411 | |
|
|
412 | bool |
|
|
413 | rxvt_ptytty::get () |
446 | rxvt_ptytty_unix::get () |
414 | { |
447 | { |
415 | /* get master (pty) */ |
448 | /* get master (pty) */ |
416 | if ((pty = get_pty (&tty, &name)) < 0) |
449 | if ((pty = get_pty (&tty, &name)) < 0) |
417 | return false; |
450 | return false; |
418 | |
451 | |
… | |
… | |
433 | } |
466 | } |
434 | |
467 | |
435 | return true; |
468 | return true; |
436 | } |
469 | } |
437 | |
470 | |
|
|
471 | #if PTYTTY_HELPER |
|
|
472 | |
|
|
473 | static int sock_fd; |
|
|
474 | static int pid; |
|
|
475 | |
|
|
476 | struct command |
|
|
477 | { |
|
|
478 | enum { get, login, destroy } type; |
|
|
479 | |
|
|
480 | rxvt_ptytty *id; |
|
|
481 | |
|
|
482 | bool login_shell; |
|
|
483 | int cmd_pid; |
|
|
484 | char hostname[512]; // arbitrary, but should be plenty |
|
|
485 | }; |
|
|
486 | |
|
|
487 | struct rxvt_ptytty_proxy : zero_initialized, rxvt_ptytty |
|
|
488 | { |
|
|
489 | rxvt_ptytty *id; |
|
|
490 | |
|
|
491 | ~rxvt_ptytty_proxy (); |
|
|
492 | |
|
|
493 | bool get (); |
|
|
494 | void login (int cmd_pid, bool login_shell, const char *hostname); |
|
|
495 | }; |
|
|
496 | |
|
|
497 | bool |
|
|
498 | rxvt_ptytty_proxy::get () |
|
|
499 | { |
|
|
500 | command cmd; |
|
|
501 | |
|
|
502 | cmd.type = command::get; |
|
|
503 | |
|
|
504 | write (sock_fd, &cmd, sizeof (cmd)); |
|
|
505 | |
|
|
506 | if (read (sock_fd, &id, sizeof (id)) != sizeof (id)) |
|
|
507 | rxvt_fatal ("protocol error while creating pty using helper process, aborting.\n"); |
|
|
508 | |
|
|
509 | if (!id) |
|
|
510 | return false; |
|
|
511 | |
|
|
512 | if ((pty = rxvt_recv_fd (sock_fd)) < 0 |
|
|
513 | || (tty = rxvt_recv_fd (sock_fd)) < 0) |
|
|
514 | rxvt_fatal ("protocol error while reading pty/tty fds from helper process, aborting.\n"); |
|
|
515 | |
|
|
516 | return true; |
|
|
517 | } |
|
|
518 | |
438 | void |
519 | void |
439 | rxvt_ptytty::set_utf8_mode (bool on) |
520 | rxvt_ptytty_proxy::login (int cmd_pid, bool login_shell, const char *hostname) |
440 | { |
521 | { |
441 | #ifdef IUTF8 |
522 | command cmd; |
442 | if (pty < 0) |
|
|
443 | return; |
|
|
444 | |
523 | |
445 | struct termios tio; |
524 | cmd.type = command::login; |
|
|
525 | cmd.id = id; |
|
|
526 | cmd.cmd_pid = cmd_pid; |
|
|
527 | cmd.login_shell = login_shell; |
|
|
528 | strncpy (cmd.hostname, hostname, sizeof (cmd.hostname)); |
446 | |
529 | |
447 | if (tcgetattr (pty, &tio) != -1) |
530 | write (sock_fd, &cmd, sizeof (cmd)); |
448 | { |
531 | } |
449 | tcflag_t new_cflag = tio.c_iflag; |
|
|
450 | |
532 | |
451 | if (on) |
533 | rxvt_ptytty_proxy::~rxvt_ptytty_proxy () |
452 | new_cflag |= IUTF8; |
534 | { |
|
|
535 | command cmd; |
|
|
536 | |
|
|
537 | cmd.type = command::destroy; |
|
|
538 | cmd.id = id; |
|
|
539 | |
|
|
540 | write (sock_fd, &cmd, sizeof (cmd)); |
|
|
541 | } |
|
|
542 | |
|
|
543 | static |
|
|
544 | void serve () |
|
|
545 | { |
|
|
546 | command cmd; |
|
|
547 | vector<rxvt_ptytty *> ptys; |
|
|
548 | |
|
|
549 | while (read (sock_fd, &cmd, sizeof (command)) == sizeof (command)) |
|
|
550 | { |
|
|
551 | if (cmd.type == command::get) |
|
|
552 | { |
|
|
553 | // -> id ptyfd ttyfd |
|
|
554 | cmd.id = new rxvt_ptytty_unix; |
|
|
555 | |
|
|
556 | if (cmd.id->get ()) |
|
|
557 | { |
|
|
558 | write (sock_fd, &cmd.id, sizeof (cmd.id)); |
|
|
559 | ptys.push_back (cmd.id); |
|
|
560 | |
|
|
561 | rxvt_send_fd (sock_fd, cmd.id->pty); |
|
|
562 | rxvt_send_fd (sock_fd, cmd.id->tty); |
|
|
563 | } |
|
|
564 | else |
|
|
565 | { |
|
|
566 | delete cmd.id; |
|
|
567 | cmd.id = 0; |
|
|
568 | write (sock_fd, &cmd.id, sizeof (cmd.id)); |
|
|
569 | } |
|
|
570 | } |
|
|
571 | else if (cmd.type == command::login) |
|
|
572 | { |
|
|
573 | #if UTMP_SUPPORT |
|
|
574 | if (find (ptys.begin (), ptys.end (), cmd.id)) |
|
|
575 | { |
|
|
576 | cmd.hostname[sizeof (cmd.hostname) - 1] = 0; |
|
|
577 | cmd.id->login (cmd.cmd_pid, cmd.login_shell, cmd.hostname); |
|
|
578 | } |
|
|
579 | #endif |
|
|
580 | } |
|
|
581 | else if (cmd.type == command::destroy) |
|
|
582 | { |
|
|
583 | rxvt_ptytty **pty = find (ptys.begin (), ptys.end (), cmd.id); |
|
|
584 | |
|
|
585 | if (pty) |
|
|
586 | { |
|
|
587 | delete *pty; |
|
|
588 | ptys.erase (pty); |
|
|
589 | } |
|
|
590 | } |
453 | else |
591 | else |
454 | new_cflag &= ~IUTF8; |
592 | break; |
|
|
593 | } |
455 | |
594 | |
456 | if (new_cflag != tio.c_iflag) |
595 | // destroy all ptys |
457 | { |
596 | for (rxvt_ptytty **i = ptys.end (); i-- > ptys.begin (); ) |
458 | tio.c_iflag = new_cflag; |
597 | delete *i; |
459 | tcsetattr (pty, TCSANOW, &tio); |
598 | } |
460 | } |
599 | |
|
|
600 | void rxvt_ptytty_server () |
|
|
601 | { |
|
|
602 | int sv[2]; |
|
|
603 | |
|
|
604 | if (socketpair (AF_UNIX, SOCK_STREAM, 0, sv)) |
|
|
605 | rxvt_fatal ("could not create socket to communicate with pty/sessiondb helper, aborting.\n"); |
|
|
606 | |
|
|
607 | pid = fork (); |
|
|
608 | |
|
|
609 | if (pid < 0) |
|
|
610 | rxvt_fatal ("could not create pty/sessiondb helper process, aborting.\n"); |
|
|
611 | |
|
|
612 | if (pid) |
461 | } |
613 | { |
|
|
614 | // client, urxvt |
|
|
615 | sock_fd = sv[0]; |
|
|
616 | close (sv[1]); |
|
|
617 | fcntl (sock_fd, F_SETFD, FD_CLOEXEC); |
|
|
618 | } |
|
|
619 | else |
|
|
620 | { |
|
|
621 | // server, pty-helper |
|
|
622 | sock_fd = sv[1]; |
|
|
623 | |
|
|
624 | for (int fd = 0; fd < 1023; fd++) |
|
|
625 | if (fd != sock_fd) |
|
|
626 | close (fd); |
|
|
627 | |
|
|
628 | serve (); |
|
|
629 | _exit (EXIT_SUCCESS); |
|
|
630 | } |
|
|
631 | } |
462 | #endif |
632 | #endif |
|
|
633 | |
|
|
634 | // a "factory" *g* |
|
|
635 | rxvt_ptytty * |
|
|
636 | rxvt_new_ptytty () |
|
|
637 | { |
|
|
638 | #if PTYTTY_HELPER |
|
|
639 | if (pid > 0) |
|
|
640 | // use helper process |
|
|
641 | return new rxvt_ptytty_proxy; |
|
|
642 | else |
|
|
643 | #endif |
|
|
644 | return new rxvt_ptytty_unix; |
463 | } |
645 | } |
464 | |
646 | |
465 | /*----------------------- end-of-file (C source) -----------------------*/ |
647 | /*----------------------- end-of-file (C source) -----------------------*/ |
466 | |
648 | |