20 verbis(int obj, Plumbmsg *m, Rule *r)
24 fprint(2, "unimplemented 'is' object %d\n", obj);
27 return strcmp(m->data, r->qarg) == 0;
29 return strcmp(m->dst, r->qarg) == 0;
31 return strcmp(m->type, r->qarg) == 0;
33 return strcmp(m->wdir, r->qarg) == 0;
35 return strcmp(m->src, r->qarg) == 0;
41 setvar(Resub rs[10], char *match[10])
49 for(i=0; i<10 && rs[i].s.sp!=nil; i++){
50 n = rs[i].e.ep-rs[i].s.sp;
51 match[i] = emalloc(n+1);
52 memmove(match[i], rs[i].s.sp, n);
58 clickmatch(Reprog *re, char *text, Resub rs[10], int click)
64 /* click is in characters, not bytes */
65 for(i=0; i<click && text[i]!='\0'; i+=w)
66 w = chartorune(&r, text+i);
68 for(i=0; i<=click; i++){
69 memset(rs, 0, 10*sizeof(Resub));
70 if(regexec(re, text+i, rs, 10))
71 if(rs[0].s.sp<=clickp && clickp<=rs[0].e.ep)
78 verbmatches(int obj, Plumbmsg *m, Rule *r, Exec *e)
81 char *clickval, *alltext;
84 memset(rs, 0, sizeof rs);
88 fprint(2, "unimplemented 'matches' object %d\n", obj);
91 clickval = plumblookup(m->attr, "click");
97 if(!clickmatch(r->regex, m->data, rs, atoi(clickval)))
99 p0 = rs[0].s.sp - m->data;
100 p1 = rs[0].e.ep - m->data;
101 if(e->p0 >=0 && !(p0==e->p0 && p1==e->p1))
107 setvar(rs, e->match);
122 /* must match full text */
124 ntext = strlen(alltext);
125 if(!regexec(r->regex, alltext, rs, 10) || rs[0].s.sp!=alltext || rs[0].e.ep!=alltext+ntext)
127 setvar(rs, e->match);
134 isfile(char *file, ulong maskon, ulong maskoff)
144 if((mode & maskon) == 0)
152 absolute(char *dir, char *file)
157 return estrdup(file);
158 p = emalloc(strlen(dir)+1+strlen(file)+1);
159 sprint(p, "%s/%s", dir, file);
164 verbisfile(int obj, Plumbmsg *m, Rule *r, Exec *e, ulong maskon, ulong maskoff, char **var)
170 fprint(2, "unimplemented 'isfile' object %d\n", obj);
173 file = absolute(m->wdir, expand(e, r->arg, nil));
174 if(isfile(file, maskon, maskoff)){
182 file = absolute(m->wdir, obj==OData? m->data : m->wdir);
183 if(isfile(file, maskon, maskoff)){
194 verbset(int obj, Plumbmsg *m, Rule *r, Exec *e)
200 fprint(2, "unimplemented 'is' object %d\n", obj);
203 new = estrdup(expand(e, r->arg, nil));
204 m->ndata = strlen(new);
212 new = estrdup(expand(e, r->arg, nil));
217 new = estrdup(expand(e, r->arg, nil));
222 new = estrdup(expand(e, r->arg, nil));
227 new = estrdup(expand(e, r->arg, nil));
236 verbadd(int obj, Plumbmsg *m, Rule *r, Exec *e)
240 fprint(2, "unimplemented 'add' object %d\n", obj);
243 m->attr = plumbaddattr(m->attr, plumbunpackattr(expand(e, r->arg, nil)));
250 verbdelete(int obj, Plumbmsg *m, Rule *r, Exec *e)
256 fprint(2, "unimplemented 'delete' object %d\n", obj);
259 a = expand(e, r->arg, nil);
260 if(plumblookup(m->attr, a) == nil)
262 m->attr = plumbdelattr(m->attr, a);
269 matchpat(Plumbmsg *m, Exec *e, Rule *r)
273 fprint(2, "unimplemented verb %d\n", r->verb);
276 return verbadd(r->obj, m, r, e);
278 return verbdelete(r->obj, m, r, e);
280 return verbis(r->obj, m, r);
282 return verbisfile(r->obj, m, r, e, DMDIR, 0, &e->dir);
284 return verbisfile(r->obj, m, r, e, ~DMDIR, DMDIR, &e->file);
286 return verbmatches(r->obj, m, r, e);
288 verbset(r->obj, m, r, e);
304 free(exec->match[i]);
313 exec = emalloc(sizeof(Exec));
321 rewrite(Plumbmsg *m, Exec *e)
327 for(a=m->attr; a!=nil; a=a->next){
328 if(strcmp(a->name, "click") == 0){
332 prev->next = a->next;
342 m->data = estrdup(expand(e, "$0", nil));
343 m->ndata = strlen(m->data);
349 buildargv(char *s, Exec *e)
357 av = erealloc(av, (ac+1) * sizeof(char*));
359 while(*s==' ' || *s=='\t')
363 av[ac++] = estrdup(expand(e, s, &s));
369 matchruleset(Plumbmsg *m, Ruleset *rs)
374 if(m->dst!=nil && m->dst[0]!='\0' && rs->port!=nil && strcmp(m->dst, rs->port)!=0)
377 for(i=0; i<rs->npat; i++)
378 if(!matchpat(m, exec, rs->pat[i])){
382 if(rs->port!=nil && (m->dst==nil || m->dst[0]=='\0')){
384 m->dst = estrdup(rs->port);
394 EXECSTACK = 32*1024+(NARGS+1)*sizeof(char*)+NARGCHAR
397 /* copy argv to stack and free the incoming strings, so we don't leak argument vectors */
399 stackargv(char **inargv, char *argv[NARGS+1], char args[NARGCHAR])
405 for(i=0; i<NARGS; i++){
410 if((s-args)+n >= NARGCHAR) /* too many characters */
426 char *args[NARGS+1], argc[NARGCHAR];
428 fd[0] = open("/dev/null", OREAD);
432 stackargv(av, args, argc);
434 threadexec(nil, fd, args[0], args);
435 threadexits("can't exec");
439 startup(Ruleset *rs, Exec *e)
445 for(i=0; i<rs->nact; i++){
446 if(rs->act[i]->verb == VStart)
448 if(rs->act[i]->verb == VClient){
449 if(e->msg->dst==nil || e->msg->dst[0]=='\0')
450 return "no port for \"client\" rule";
451 e->holdforclient = 1;
455 return "no start action for plumb message";
458 argv = buildargv(rs->act[i]->arg, e);
460 return "empty argument list";
461 threadcreate(execproc, argv, EXECSTACK);