xref: /plan9/sys/src/cmd/unix/drawterm/main.c (revision 499069debb03e99ea217d35fd87fb49e96918a92)
1 #include "u.h"
2 #include "lib.h"
3 #include "kern/dat.h"
4 #include "kern/fns.h"
5 #include "user.h"
6 
7 #include "drawterm.h"
8 
9 char *argv0;
10 char *user;
11 
12 extern int errfmt(Fmt*);
13 void
sizebug(void)14 sizebug(void)
15 {
16 	/*
17 	 * Needed by various parts of the code.
18 	 * This is a huge bug.
19 	 */
20 	assert(sizeof(char)==1);
21 	assert(sizeof(short)==2);
22 	assert(sizeof(ushort)==2);
23 	assert(sizeof(int)==4);
24 	assert(sizeof(uint)==4);
25 	assert(sizeof(long)==4);
26 	assert(sizeof(ulong)==4);
27 	assert(sizeof(vlong)==8);
28 	assert(sizeof(uvlong)==8);
29 }
30 
31 int
main(int argc,char ** argv)32 main(int argc, char **argv)
33 {
34 	eve = getuser();
35 	if(eve == nil)
36 		eve = "drawterm";
37 
38 	sizebug();
39 
40 	osinit();
41 	procinit0();
42 	printinit();
43 	screeninit();
44 
45 	chandevreset();
46 	chandevinit();
47 	quotefmtinstall();
48 
49 	if(bind("#c", "/dev", MBEFORE) < 0)
50 		panic("bind #c: %r");
51 	if(bind("#m", "/dev", MBEFORE) < 0)
52 		panic("bind #m: %r");
53 	if(bind("#i", "/dev", MBEFORE) < 0)
54 		panic("bind #i: %r");
55 	if(bind("#I", "/net", MBEFORE) < 0)
56 		panic("bind #I: %r");
57 	if(bind("#U", "/", MAFTER) < 0)
58 		panic("bind #U: %r");
59 	bind("#A", "/dev", MAFTER);
60 
61 	if(open("/dev/cons", OREAD) != 0)
62 		panic("open0: %r");
63 	if(open("/dev/cons", OWRITE) != 1)
64 		panic("open1: %r");
65 	if(open("/dev/cons", OWRITE) != 2)
66 		panic("open2: %r");
67 
68 	cpumain(argc, argv);
69 	return 0;
70 }
71 
72 char*
getkey(char * user,char * dom)73 getkey(char *user, char *dom)
74 {
75 	char buf[1024];
76 
77 	snprint(buf, sizeof buf, "%s@%s password", user, dom);
78 	return readcons(buf, nil, 1);
79 }
80 
81 char*
findkey(char ** puser,char * dom)82 findkey(char **puser, char *dom)
83 {
84 	char buf[1024], *f[50], *p, *ep, *nextp, *pass, *user;
85 	int nf, haveproto,  havedom, i;
86 
87 	for(p=secstorebuf; *p; p=nextp){
88 		nextp = strchr(p, '\n');
89 		if(nextp == nil){
90 			ep = p+strlen(p);
91 			nextp = "";
92 		}else{
93 			ep = nextp++;
94 		}
95 		if(ep-p >= sizeof buf){
96 			print("warning: skipping long line in secstore factotum file\n");
97 			continue;
98 		}
99 		memmove(buf, p, ep-p);
100 		buf[ep-p] = 0;
101 		nf = tokenize(buf, f, nelem(f));
102 		if(nf == 0 || strcmp(f[0], "key") != 0)
103 			continue;
104 		pass = nil;
105 		haveproto = havedom = 0;
106 		user = nil;
107 		for(i=1; i<nf; i++){
108 			if(strncmp(f[i], "user=", 5) == 0)
109 				user = f[i]+5;
110 			if(strncmp(f[i], "!password=", 10) == 0)
111 				pass = f[i]+10;
112 			if(strncmp(f[i], "dom=", 4) == 0 && strcmp(f[i]+4, dom) == 0)
113 				havedom = 1;
114 			if(strcmp(f[i], "proto=p9sk1") == 0)
115 				haveproto = 1;
116 		}
117 		if(!haveproto || !havedom || !pass || !user)
118 			continue;
119 		*puser = strdup(user);
120 		pass = strdup(pass);
121 		memset(buf, 0, sizeof buf);
122 		return pass;
123 	}
124 	return nil;
125 }
126 
127