summaryrefslogtreecommitdiffstats
path: root/libvncserver/cargs.c
blob: 27ceb978198755e79d8cbfbc08ce6ab825b74c49 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
/*
 *  This parses the command line arguments. It was seperated from main.c by 
 *  Justin Dearing <jdeari01@longisland.poly.edu>.
 */

/*
 *  LibVNCServer (C) 2001 Johannes E. Schindelin <Johannes.Schindelin@gmx.de>
 *  Original OSXvnc (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
 *  Original Xvnc (C) 1999 AT&T Laboratories Cambridge.  
 *  All Rights Reserved.
 *
 *  see GPL (latest version) for full details
 */

#include <rfb/rfb.h>

extern int rfbStringToAddr(char *str, in_addr_t *iface);

void
rfbUsage(void)
{
    rfbProtocolExtension* extension;

    fprintf(stderr, "-rfbport port          TCP port for RFB protocol\n");
#ifdef LIBVNCSERVER_IPv6
    fprintf(stderr, "-rfbportv6 port        TCP6 port for RFB protocol\n");
#endif
    fprintf(stderr, "-rfbwait time          max time in ms to wait for RFB client\n");
    fprintf(stderr, "-rfbauth passwd-file   use authentication on RFB protocol\n"
                    "                       (use 'storepasswd' to create a password file)\n");
    fprintf(stderr, "-rfbversion 3.x        Set the version of the RFB we choose to advertise\n");
    fprintf(stderr, "-permitfiletransfer    permit file transfer support\n");
    fprintf(stderr, "-passwd plain-password use authentication \n"
                    "                       (use plain-password as password, USE AT YOUR RISK)\n");
    fprintf(stderr, "-deferupdate time      time in ms to defer updates "
                                                             "(default 40)\n");
    fprintf(stderr, "-deferptrupdate time   time in ms to defer pointer updates"
                                                           " (default none)\n");
    fprintf(stderr, "-desktop name          VNC desktop name (default \"LibVNCServer\")\n");
    fprintf(stderr, "-alwaysshared          always treat new clients as shared\n");
    fprintf(stderr, "-nevershared           never treat new clients as shared\n");
    fprintf(stderr, "-dontdisconnect        don't disconnect existing clients when a "
                                                             "new non-shared\n"
                    "                       connection comes in (refuse new connection "
                                                                "instead)\n");
    fprintf(stderr, "-httpdir dir-path      enable http server using dir-path home\n");
    fprintf(stderr, "-httpport portnum      use portnum for http connection\n");
    fprintf(stderr, "-enablehttpproxy       enable http proxy support\n");
    fprintf(stderr, "-progressive height    enable progressive updating for slow links\n");
    fprintf(stderr, "-listen ipaddr         listen for connections only on network interface with\n");
    fprintf(stderr, "                       addr ipaddr. '-listen localhost' and hostname work too.\n");
#ifdef LIBVNCSERVER_IPv6
    fprintf(stderr, "-listenv6 ipv6addr     listen for IPv6 connections only on network interface with\n");
    fprintf(stderr, "                       addr ipv6addr. '-listen localhost' and hostname work too.\n");
#endif

    for(extension=rfbGetExtensionIterator();extension;extension=extension->next)
	if(extension->usage)
		extension->usage();
    rfbReleaseExtensionIterator();
}

/* purges COUNT arguments from ARGV at POSITION and decrements ARGC.
   POSITION points to the first non purged argument afterwards. */
void rfbPurgeArguments(int* argc,int* position,int count,char *argv[])
{
  int amount=(*argc)-(*position)-count;
  if(amount)
    memmove(argv+(*position),argv+(*position)+count,sizeof(char*)*amount);
  (*argc)-=count;
}

rfbBool 
rfbProcessArguments(rfbScreenInfoPtr rfbScreen,int* argc, char *argv[])
{
    int i,i1;

    if(!argc) return TRUE;
    
    for (i = i1 = 1; i < *argc;) {
        if (strcmp(argv[i], "-help") == 0) {
	    rfbUsage();
	    return FALSE;
	} else if (strcmp(argv[i], "-rfbport") == 0) { /* -rfbport port */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
	    rfbScreen->port = atoi(argv[++i]);
#ifdef LIBVNCSERVER_IPv6
	} else if (strcmp(argv[i], "-rfbportv6") == 0) { /* -rfbportv6 port */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
	    rfbScreen->ipv6port = atoi(argv[++i]);
#endif
        } else if (strcmp(argv[i], "-rfbwait") == 0) {  /* -rfbwait ms */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
	    rfbScreen->maxClientWait = atoi(argv[++i]);
        } else if (strcmp(argv[i], "-rfbauth") == 0) {  /* -rfbauth passwd-file */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
            rfbScreen->authPasswdData = argv[++i];

        } else if (strcmp(argv[i], "-permitfiletransfer") == 0) {  /* -permitfiletransfer  */
            rfbScreen->permitFileTransfer = TRUE;
        } else if (strcmp(argv[i], "-rfbversion") == 0) {  /* -rfbversion 3.6  */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
	    sscanf(argv[++i],"%d.%d", &rfbScreen->protocolMajorVersion, &rfbScreen->protocolMinorVersion);
	} else if (strcmp(argv[i], "-passwd") == 0) {  /* -passwd password */
	    char **passwds = malloc(sizeof(char**)*2);
	    if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
	    passwds[0] = argv[++i];
	    passwds[1] = NULL;
	    rfbScreen->authPasswdData = (void*)passwds;
	    rfbScreen->passwordCheck = rfbCheckPasswordByList;
        } else if (strcmp(argv[i], "-deferupdate") == 0) {  /* -deferupdate milliseconds */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
            rfbScreen->deferUpdateTime = atoi(argv[++i]);
        } else if (strcmp(argv[i], "-deferptrupdate") == 0) {  /* -deferptrupdate milliseconds */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
            rfbScreen->deferPtrUpdateTime = atoi(argv[++i]);
        } else if (strcmp(argv[i], "-desktop") == 0) {  /* -desktop desktop-name */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
            rfbScreen->desktopName = argv[++i];
        } else if (strcmp(argv[i], "-alwaysshared") == 0) {
	    rfbScreen->alwaysShared = TRUE;
        } else if (strcmp(argv[i], "-nevershared") == 0) {
            rfbScreen->neverShared = TRUE;
        } else if (strcmp(argv[i], "-dontdisconnect") == 0) {
            rfbScreen->dontDisconnect = TRUE;
        } else if (strcmp(argv[i], "-httpdir") == 0) {  /* -httpdir directory-path */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
            rfbScreen->httpDir = argv[++i];
        } else if (strcmp(argv[i], "-httpport") == 0) {  /* -httpport portnum */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
            rfbScreen->httpPort = atoi(argv[++i]);
        } else if (strcmp(argv[i], "-enablehttpproxy") == 0) {
            rfbScreen->httpEnableProxyConnect = TRUE;
        } else if (strcmp(argv[i], "-progressive") == 0) {  /* -httpport portnum */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
            rfbScreen->progressiveSliceHeight = atoi(argv[++i]);
        } else if (strcmp(argv[i], "-listen") == 0) {  /* -listen ipaddr */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
            if (! rfbStringToAddr(argv[++i], &(rfbScreen->listenInterface))) {
                return FALSE;
            }
#ifdef LIBVNCSERVER_IPv6
	} else if (strcmp(argv[i], "-listenv6") == 0) {  /* -listenv6 ipv6addr */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
	    rfbScreen->listen6Interface = argv[++i];
#endif
#ifdef LIBVNCSERVER_WITH_WEBSOCKETS
        } else if (strcmp(argv[i], "-sslkeyfile") == 0) {  /* -sslkeyfile sslkeyfile */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
            rfbScreen->sslkeyfile = argv[++i];
        } else if (strcmp(argv[i], "-sslcertfile") == 0) {  /* -sslcertfile sslcertfile */
            if (i + 1 >= *argc) {
		rfbUsage();
		return FALSE;
	    }
            rfbScreen->sslcertfile = argv[++i];
#endif
        } else {
	    rfbProtocolExtension* extension;
	    int handled=0;

	    for(extension=rfbGetExtensionIterator();handled==0 && extension;
			extension=extension->next)
		if(extension->processArgument)
			handled = extension->processArgument(*argc - i, argv + i);
	    rfbReleaseExtensionIterator();

	    if(handled==0) {
		i++;
		i1=i;
		continue;
	    }
	    i+=handled-1;
	}
	/* we just remove the processed arguments from the list */
	rfbPurgeArguments(argc,&i1,i-i1+1,argv);
	i=i1;
    }
    return TRUE;
}

rfbBool 
rfbProcessSizeArguments(int* width,int* height,int* bpp,int* argc, char *argv[])
{
    int i,i1;

    if(!argc) return TRUE;
    for (i = i1 = 1; i < *argc-1;) {
        if (strcmp(argv[i], "-bpp") == 0) {
               *bpp = atoi(argv[++i]);
        } else if (strcmp(argv[i], "-width") == 0) {
               *width = atoi(argv[++i]);
        } else if (strcmp(argv[i], "-height") == 0) {
               *height = atoi(argv[++i]);
        } else {
	    i++;
	    i1=i;
	    continue;
	}
	rfbPurgeArguments(argc,&i1,i-i1,argv);
	i=i1;
    }
    return TRUE;
}