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1 | /* |
2 | * Unix PuTTY main program. |
3 | */ |
4 | |
5 | #include <stdio.h> |
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6 | #include <ctype.h> |
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7 | #include <stdlib.h> |
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8 | #include <assert.h> |
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9 | #include <unistd.h> |
10 | |
11 | #include "putty.h" |
12 | #include "storage.h" |
13 | |
14 | /* |
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15 | * TODO: |
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16 | * |
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17 | * - Copy-and-paste from the Event Log. |
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18 | * |
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19 | * - Remainder of the context menu: |
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20 | * |
21 | * - New Session and Duplicate Session (perhaps in pterm, in fact?!) |
22 | * + Duplicate Session will be fun, since we must work out |
23 | * how to pass the config data through. |
24 | * + In fact this should be easier on Unix, since fork() is |
25 | * available so we need not even exec (this also saves us |
26 | * the trouble of scrabbling around trying to find our own |
27 | * binary). Possible scenario: respond to Duplicate |
28 | * Session by forking. Parent continues as before; child |
29 | * unceremoniously frees all extant resources (backend, |
30 | * terminal, ldisc, frontend etc) and then _longjmps_ (I |
31 | * kid you not) back to a point in pt_main() which causes |
32 | * it to go back round to the point of opening a new |
33 | * terminal window and a new backend. |
34 | * + A tricky bit here is how to free everything without |
35 | * also _destroying_ things - calling GTK to free up |
36 | * existing widgets is liable to send destroy messages to |
37 | * the X server, which won't go down too well with the |
38 | * parent process. exec() is a much cleaner solution to |
39 | * this bit, but requires us to invent some ghastly IPC as |
40 | * we did in Windows PuTTY. |
41 | * + Arrgh! Also, this won't work in pterm since we'll |
42 | * already have dropped privileges by this point, so we |
43 | * can't get another pty. Sigh. Looks like exec has to be |
44 | * the way forward then :-/ |
45 | * |
46 | * - Saved Sessions submenu (not in pterm of course) |
47 | * |
48 | * - Change Settings |
49 | * + we must also implement mid-session reconfig in pterm.c. |
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50 | * + This will require some work. We have to throw the new |
51 | * config at the log module, the ldisc, the terminal, and |
52 | * the backend; that's the easy bit. But within pterm.c |
53 | * itself we must also: |
54 | * - redo the colour palette if necessary |
55 | * * might be nice to move this over into terminal.c. |
56 | * That way we could check which palette entries in |
57 | * cfg have actually been _changed_ during |
58 | * reconfiguration, and only update those ones in |
59 | * the currently visible palette. Also it'd save |
60 | * some of this hassle in the next port. |
61 | * - enable/disable/move the scroll bar if necessary |
62 | * - change the window title if necessary |
63 | * - reinitialise the fonts |
64 | * - resize the window if necessary (may be required |
65 | * either by terminal size change or font size change |
66 | * or both) |
67 | * - redraw everything, just to be safe. |
68 | * + In particular, among the above chaos, we must look into |
69 | * how the choice of font affects the choice of codepage |
70 | * since the Unix default is to derive the latter from the |
71 | * former. |
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72 | * |
73 | * - Copy All to Clipboard (for what that's worth) |
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74 | */ |
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75 | |
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76 | /* |
77 | * Clean up and exit. |
78 | */ |
79 | void cleanup_exit(int code) |
80 | { |
81 | /* |
82 | * Clean up. |
83 | */ |
84 | sk_cleanup(); |
85 | random_save_seed(); |
86 | exit(code); |
87 | } |
88 | |
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89 | Backend *select_backend(Config *cfg) |
90 | { |
91 | int i; |
92 | Backend *back = NULL; |
93 | for (i = 0; backends[i].backend != NULL; i++) |
94 | if (backends[i].protocol == cfg->protocol) { |
95 | back = backends[i].backend; |
96 | break; |
97 | } |
98 | assert(back != NULL); |
99 | return back; |
100 | } |
101 | |
102 | int cfgbox(Config *cfg) |
103 | { |
104 | extern int do_config_box(const char *title, Config *cfg); |
105 | return do_config_box("PuTTY Configuration", cfg); |
106 | } |
107 | |
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108 | static int got_host = 0; |
109 | |
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110 | const int use_event_log = 1; |
111 | |
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112 | int process_nonoption_arg(char *arg, Config *cfg) |
113 | { |
114 | char *p, *q = arg; |
115 | |
116 | if (got_host) { |
117 | /* |
118 | * If we already have a host name, treat this argument as a |
119 | * port number. NB we have to treat this as a saved -P |
120 | * argument, so that it will be deferred until it's a good |
121 | * moment to run it. |
122 | */ |
123 | int ret = cmdline_process_param("-P", arg, 1, cfg); |
124 | assert(ret == 2); |
125 | } else if (!strncmp(q, "telnet:", 7)) { |
126 | /* |
127 | * If the hostname starts with "telnet:", |
128 | * set the protocol to Telnet and process |
129 | * the string as a Telnet URL. |
130 | */ |
131 | char c; |
132 | |
133 | q += 7; |
134 | if (q[0] == '/' && q[1] == '/') |
135 | q += 2; |
136 | cfg->protocol = PROT_TELNET; |
137 | p = q; |
138 | while (*p && *p != ':' && *p != '/') |
139 | p++; |
140 | c = *p; |
141 | if (*p) |
142 | *p++ = '\0'; |
143 | if (c == ':') |
144 | cfg->port = atoi(p); |
145 | else |
146 | cfg->port = -1; |
147 | strncpy(cfg->host, q, sizeof(cfg->host) - 1); |
148 | cfg->host[sizeof(cfg->host) - 1] = '\0'; |
149 | got_host = 1; |
150 | } else { |
151 | /* |
152 | * Otherwise, treat this argument as a host name. |
153 | */ |
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154 | p = arg; |
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155 | while (*p && !isspace((unsigned char)*p)) |
156 | p++; |
157 | if (*p) |
158 | *p++ = '\0'; |
159 | strncpy(cfg->host, q, sizeof(cfg->host) - 1); |
160 | cfg->host[sizeof(cfg->host) - 1] = '\0'; |
161 | got_host = 1; |
162 | } |
163 | return 1; |
164 | } |
165 | |
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166 | char *make_default_wintitle(char *hostname) |
167 | { |
168 | return dupcat(hostname, " - PuTTY", NULL); |
169 | } |
170 | |
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171 | int main(int argc, char **argv) |
172 | { |
173 | extern int pt_main(int argc, char **argv); |
174 | sk_init(); |
175 | flags = FLAG_VERBOSE | FLAG_INTERACTIVE; |
176 | default_protocol = be_default_protocol; |
177 | /* Find the appropriate default port. */ |
178 | { |
179 | int i; |
180 | default_port = 0; /* illegal */ |
181 | for (i = 0; backends[i].backend != NULL; i++) |
182 | if (backends[i].protocol == default_protocol) { |
183 | default_port = backends[i].backend->default_port; |
184 | break; |
185 | } |
186 | } |
187 | return pt_main(argc, argv); |
188 | } |