1 be22ae2d 2004-03-26 devnull #include <u.h>
2 941c9f36 2003-10-11 devnull #include <sys/types.h>
3 941c9f36 2003-10-11 devnull #include <sys/stat.h>
4 941c9f36 2003-10-11 devnull #include <errno.h>
6 84b1cb73 2003-09-30 devnull #include <u.h>
7 84b1cb73 2003-09-30 devnull #include <libc.h>
8 84b1cb73 2003-09-30 devnull #include <draw.h>
9 84b1cb73 2003-09-30 devnull #include <thread.h>
10 84b1cb73 2003-09-30 devnull #include <mouse.h>
11 84b1cb73 2003-09-30 devnull #include <cursor.h>
12 84b1cb73 2003-09-30 devnull #include <keyboard.h>
13 84b1cb73 2003-09-30 devnull #include <frame.h>
14 2277c5d7 2004-03-21 devnull #define Tversion Tversion9p
15 2277c5d7 2004-03-21 devnull #define Twrite Twrite9p
16 2277c5d7 2004-03-21 devnull #include <fcall.h>
17 2277c5d7 2004-03-21 devnull #undef Tversion
18 2277c5d7 2004-03-21 devnull #undef Twrite
19 d4045724 2005-01-04 devnull #include <9pclient.h>
20 af78a4cd 2004-03-02 devnull #include <plumb.h>
21 84b1cb73 2003-09-30 devnull #include "flayer.h"
22 84b1cb73 2003-09-30 devnull #include "samterm.h"
24 941c9f36 2003-10-11 devnull static char *exname;
26 64bcfff3 2003-11-25 devnull #define STACK 16384
29 17ab31aa 2005-01-27 devnull usage(void)
31 17ab31aa 2005-01-27 devnull fprint(2, "usage: samterm -a -W winsize\n");
32 17ab31aa 2005-01-27 devnull threadexitsall("usage");
36 84b1cb73 2003-09-30 devnull getscreen(int argc, char **argv)
40 17ab31aa 2005-01-27 devnull ARGBEGIN{
41 17ab31aa 2005-01-27 devnull case 'a':
42 17ab31aa 2005-01-27 devnull autoindent = 1;
44 17ab31aa 2005-01-27 devnull case 'W':
45 17ab31aa 2005-01-27 devnull winsize = EARGF(usage());
51 84b1cb73 2003-09-30 devnull if(initdraw(panic1, nil, "sam") < 0){
52 941c9f36 2003-10-11 devnull fprint(2, "samterm: initdraw: %r\n");
53 84b1cb73 2003-09-30 devnull threadexitsall("init");
55 84b1cb73 2003-09-30 devnull t = getenv("tabstop");
56 84b1cb73 2003-09-30 devnull if(t != nil)
57 84b1cb73 2003-09-30 devnull maxtab = strtoul(t, nil, 0);
58 84b1cb73 2003-09-30 devnull draw(screen, screen->clipr, display->white, nil, ZP);
62 84b1cb73 2003-09-30 devnull screensize(int *w, int *h)
64 84b1cb73 2003-09-30 devnull int fd, n;
65 84b1cb73 2003-09-30 devnull char buf[5*12+1];
67 84b1cb73 2003-09-30 devnull fd = open("/dev/screen", OREAD);
68 84b1cb73 2003-09-30 devnull if(fd < 0)
69 84b1cb73 2003-09-30 devnull return 0;
70 84b1cb73 2003-09-30 devnull n = read(fd, buf, sizeof(buf)-1);
71 84b1cb73 2003-09-30 devnull close(fd);
72 84b1cb73 2003-09-30 devnull if (n != sizeof(buf)-1)
73 84b1cb73 2003-09-30 devnull return 0;
74 84b1cb73 2003-09-30 devnull buf[n] = 0;
76 84b1cb73 2003-09-30 devnull *h = atoi(buf+4*12)-atoi(buf+2*12);
77 84b1cb73 2003-09-30 devnull if (*h < 0)
78 84b1cb73 2003-09-30 devnull return 0;
81 84b1cb73 2003-09-30 devnull *w = atoi(buf+3*12)-atoi(buf+1*12);
82 84b1cb73 2003-09-30 devnull if (*w < 0)
83 84b1cb73 2003-09-30 devnull return 0;
85 84b1cb73 2003-09-30 devnull return 1;
89 84b1cb73 2003-09-30 devnull snarfswap(char *fromsam, int nc, char **tosam)
93 941c9f36 2003-10-11 devnull s = getsnarf();
94 941c9f36 2003-10-11 devnull putsnarf(fromsam);
95 941c9f36 2003-10-11 devnull *tosam = s;
96 941c9f36 2003-10-11 devnull return s ? strlen(s) : 0;
100 84b1cb73 2003-09-30 devnull dumperrmsg(int count, int type, int count0, int c)
102 84b1cb73 2003-09-30 devnull fprint(2, "samterm: host mesg: count %d %ux %ux %ux %s...ignored\n",
103 84b1cb73 2003-09-30 devnull count, type, count0, c, rcvstring());
107 84b1cb73 2003-09-30 devnull removeextern(void)
109 84b1cb73 2003-09-30 devnull remove(exname);
112 84b1cb73 2003-09-30 devnull Readbuf hostbuf[2];
113 84b1cb73 2003-09-30 devnull Readbuf plumbbuf[2];
116 84b1cb73 2003-09-30 devnull extproc(void *argv)
118 84b1cb73 2003-09-30 devnull Channel *c;
119 941c9f36 2003-10-11 devnull int i, n, which, fd;
120 84b1cb73 2003-09-30 devnull void **arg;
122 84b1cb73 2003-09-30 devnull arg = argv;
123 84b1cb73 2003-09-30 devnull c = arg[0];
124 cbf43783 2006-04-20 devnull fd = (int)(uintptr)arg[1];
127 84b1cb73 2003-09-30 devnull for(;;){
128 941c9f36 2003-10-11 devnull i = 1-i; /* toggle */
129 93f2ae0d 2004-12-27 devnull n = read(fd, plumbbuf[i].data, sizeof plumbbuf[i].data);
130 93f2ae0d 2004-12-27 devnull if(0) fprint(2, "ext %d\n", n);
131 84b1cb73 2003-09-30 devnull if(n <= 0){
132 84b1cb73 2003-09-30 devnull fprint(2, "samterm: extern read error: %r\n");
133 941c9f36 2003-10-11 devnull threadexits("extern"); /* not a fatal error */
135 84b1cb73 2003-09-30 devnull plumbbuf[i].n = n;
136 84b1cb73 2003-09-30 devnull which = i;
137 84b1cb73 2003-09-30 devnull send(c, &which);
142 84b1cb73 2003-09-30 devnull extstart(void)
144 941c9f36 2003-10-11 devnull char *user, *disp;
145 941c9f36 2003-10-11 devnull int fd, flags;
146 84b1cb73 2003-09-30 devnull static void *arg[2];
148 941c9f36 2003-10-11 devnull user = getenv("USER");
149 941c9f36 2003-10-11 devnull if(user == nil)
151 941c9f36 2003-10-11 devnull disp = getenv("DISPLAY");
152 941c9f36 2003-10-11 devnull if(disp)
153 941c9f36 2003-10-11 devnull exname = smprint("/tmp/.sam.%s.%s", user, disp);
155 941c9f36 2003-10-11 devnull exname = smprint("/tmp/.sam.%s", user);
156 941c9f36 2003-10-11 devnull if(exname == nil){
157 941c9f36 2003-10-11 devnull fprint(2, "not posting for B: out of memory\n");
161 941c9f36 2003-10-11 devnull if(mkfifo(exname, 0600) < 0){
162 941c9f36 2003-10-11 devnull struct stat st;
163 941c9f36 2003-10-11 devnull if(errno != EEXIST || stat(exname, &st) < 0)
165 941c9f36 2003-10-11 devnull if(!S_ISFIFO(st.st_mode)){
166 941c9f36 2003-10-11 devnull removeextern();
167 941c9f36 2003-10-11 devnull if(mkfifo(exname, 0600) < 0)
172 a19ff5b2 2005-01-07 devnull fd = open(exname, OREAD|ONONBLOCK);
173 941c9f36 2003-10-11 devnull if(fd == -1){
174 941c9f36 2003-10-11 devnull removeextern();
179 941c9f36 2003-10-11 devnull * Turn off no-delay and provide ourselves as a lingering
180 941c9f36 2003-10-11 devnull * writer so as not to get end of file on read.
182 941c9f36 2003-10-11 devnull flags = fcntl(fd, F_GETFL, 0);
183 941c9f36 2003-10-11 devnull if(flags<0 || fcntl(fd, F_SETFL, flags&~O_NONBLOCK)<0
184 941c9f36 2003-10-11 devnull ||open(exname, OWRITE) < 0){
185 941c9f36 2003-10-11 devnull close(fd);
186 941c9f36 2003-10-11 devnull removeextern();
190 84b1cb73 2003-09-30 devnull plumbc = chancreate(sizeof(int), 0);
191 93f2ae0d 2004-12-27 devnull chansetname(plumbc, "plumbc");
192 84b1cb73 2003-09-30 devnull arg[0] = plumbc;
193 cbf43783 2006-04-20 devnull arg[1] = (void*)(uintptr)fd;
194 93f2ae0d 2004-12-27 devnull proccreate(extproc, arg, STACK);
195 84b1cb73 2003-09-30 devnull atexit(removeextern);
199 af78a4cd 2004-03-02 devnull plumbformat(Plumbmsg *m, int i)
201 84b1cb73 2003-09-30 devnull char *addr, *data, *act;
204 84b1cb73 2003-09-30 devnull data = (char*)plumbbuf[i].data;
205 84b1cb73 2003-09-30 devnull n = m->ndata;
206 af78a4cd 2004-03-02 devnull if(n == 0 || 2+n+2 >= READBUFSIZE){
207 84b1cb73 2003-09-30 devnull plumbfree(m);
208 84b1cb73 2003-09-30 devnull return 0;
210 84b1cb73 2003-09-30 devnull act = plumblookup(m->attr, "action");
211 84b1cb73 2003-09-30 devnull if(act!=nil && strcmp(act, "showfile")!=0){
212 84b1cb73 2003-09-30 devnull /* can't handle other cases yet */
213 84b1cb73 2003-09-30 devnull plumbfree(m);
214 84b1cb73 2003-09-30 devnull return 0;
216 84b1cb73 2003-09-30 devnull addr = plumblookup(m->attr, "addr");
217 84b1cb73 2003-09-30 devnull if(addr){
218 84b1cb73 2003-09-30 devnull if(addr[0] == '\0')
219 84b1cb73 2003-09-30 devnull addr = nil;
221 84b1cb73 2003-09-30 devnull addr = strdup(addr); /* copy to safe storage; we'll overwrite data */
223 84b1cb73 2003-09-30 devnull memmove(data, "B ", 2); /* we know there's enough room for this */
224 84b1cb73 2003-09-30 devnull memmove(data+2, m->data, n);
226 84b1cb73 2003-09-30 devnull if(data[n-1] != '\n')
227 84b1cb73 2003-09-30 devnull data[n++] = '\n';
228 84b1cb73 2003-09-30 devnull if(addr != nil){
229 84b1cb73 2003-09-30 devnull if(n+strlen(addr)+1+1 <= READBUFSIZE)
230 84b1cb73 2003-09-30 devnull n += sprint(data+n, "%s\n", addr);
231 84b1cb73 2003-09-30 devnull free(addr);
233 84b1cb73 2003-09-30 devnull plumbbuf[i].n = n;
234 84b1cb73 2003-09-30 devnull plumbfree(m);
235 84b1cb73 2003-09-30 devnull return 1;
239 2277c5d7 2004-03-21 devnull plumbproc(void *arg)
241 d4045724 2005-01-04 devnull CFid *fid;
243 af78a4cd 2004-03-02 devnull Plumbmsg *m;
245 2277c5d7 2004-03-21 devnull fid = arg;
247 84b1cb73 2003-09-30 devnull for(;;){
248 2277c5d7 2004-03-21 devnull m = plumbrecvfid(fid);
249 af78a4cd 2004-03-02 devnull if(m == nil){
250 84b1cb73 2003-09-30 devnull fprint(2, "samterm: plumb read error: %r\n");
251 84b1cb73 2003-09-30 devnull threadexits("plumb"); /* not a fatal error */
253 af78a4cd 2004-03-02 devnull if(plumbformat(m, i)){
254 2277c5d7 2004-03-21 devnull send(plumbc, &i);
255 af78a4cd 2004-03-02 devnull i = 1-i; /* toggle */
261 84b1cb73 2003-09-30 devnull plumbstart(void)
263 d4045724 2005-01-04 devnull CFid *fid;
265 84b1cb73 2003-09-30 devnull plumbfd = plumbopen("send", OWRITE|OCEXEC); /* not open is ok */
266 2277c5d7 2004-03-21 devnull fid = plumbopenfid("edit", OREAD|OCEXEC);
267 2277c5d7 2004-03-21 devnull if(fid == nil)
268 84b1cb73 2003-09-30 devnull return -1;
269 84b1cb73 2003-09-30 devnull plumbc = chancreate(sizeof(int), 0);
270 93f2ae0d 2004-12-27 devnull chansetname(plumbc, "plumbc");
271 84b1cb73 2003-09-30 devnull if(plumbc == nil){
272 2277c5d7 2004-03-21 devnull fsclose(fid);
273 84b1cb73 2003-09-30 devnull return -1;
275 2277c5d7 2004-03-21 devnull threadcreate(plumbproc, fid, STACK);
276 84b1cb73 2003-09-30 devnull return 1;
280 84b1cb73 2003-09-30 devnull hostproc(void *arg)
282 84b1cb73 2003-09-30 devnull Channel *c;
283 84b1cb73 2003-09-30 devnull int i, n, which;
285 84b1cb73 2003-09-30 devnull c = arg;
288 84b1cb73 2003-09-30 devnull for(;;){
289 84b1cb73 2003-09-30 devnull i = 1-i; /* toggle */
290 93f2ae0d 2004-12-27 devnull n = read(hostfd[0], hostbuf[i].data, sizeof hostbuf[i].data);
291 93f2ae0d 2004-12-27 devnull if(0) fprint(2, "hostproc %d\n", n);
292 84b1cb73 2003-09-30 devnull if(n <= 0){
293 f0264abf 2005-01-20 devnull if(n == 0){
294 f0264abf 2005-01-20 devnull if(exiting)
295 f0264abf 2005-01-20 devnull threadexits(nil);
296 f0264abf 2005-01-20 devnull werrstr("unexpected eof");
298 84b1cb73 2003-09-30 devnull fprint(2, "samterm: host read error: %r\n");
299 84b1cb73 2003-09-30 devnull threadexitsall("host");
301 84b1cb73 2003-09-30 devnull hostbuf[i].n = n;
302 84b1cb73 2003-09-30 devnull which = i;
303 93f2ae0d 2004-12-27 devnull if(0) fprint(2, "hostproc send %d\n", which);
304 84b1cb73 2003-09-30 devnull send(c, &which);
309 84b1cb73 2003-09-30 devnull hoststart(void)
311 84b1cb73 2003-09-30 devnull hostc = chancreate(sizeof(int), 0);
312 93f2ae0d 2004-12-27 devnull chansetname(hostc, "hostc");
313 93f2ae0d 2004-12-27 devnull proccreate(hostproc, hostc, STACK);