1 76193d7c 2003-09-30 devnull #include <u.h>
  2 76193d7c 2003-09-30 devnull #include <libc.h>
  3 76193d7c 2003-09-30 devnull #include <draw.h>
  4 76193d7c 2003-09-30 devnull 
  5 161060a4 2003-10-11 devnull extern vlong _drawflength(int);
  6 9b4a2324 2009-07-09 rsc int _fontpipe(char*);
  7 161060a4 2003-10-11 devnull 
  8 76193d7c 2003-09-30 devnull Font*
  9 76193d7c 2003-09-30 devnull openfont(Display *d, char *name)
 10 76193d7c 2003-09-30 devnull {
 11 76193d7c 2003-09-30 devnull 	Font *fnt;
 12 76193d7c 2003-09-30 devnull 	int fd, i, n;
 13 32f69c36 2003-12-11 devnull 	char *buf, *nambuf;
 14 76193d7c 2003-09-30 devnull 
 15 e6f4b2e3 2003-10-13 devnull 	nambuf = 0;
 16 76193d7c 2003-09-30 devnull 	fd = open(name, OREAD);
 17 e6f4b2e3 2003-10-13 devnull 
 18 e6f4b2e3 2003-10-13 devnull 	if(fd < 0 && strncmp(name, "/lib/font/bit/", 14) == 0){
 19 32f69c36 2003-12-11 devnull 		nambuf = smprint("#9/font/%s", name+14);
 20 e6f4b2e3 2003-10-13 devnull 		if(nambuf == nil)
 21 e6f4b2e3 2003-10-13 devnull 			return 0;
 22 8ad51794 2004-03-25 devnull 		nambuf = unsharp(nambuf);
 23 8ad51794 2004-03-25 devnull 		if(nambuf == nil)
 24 8ad51794 2004-03-25 devnull 			return 0;
 25 e6f4b2e3 2003-10-13 devnull 		if((fd = open(nambuf, OREAD)) < 0){
 26 e6f4b2e3 2003-10-13 devnull 			free(nambuf);
 27 e6f4b2e3 2003-10-13 devnull 			return 0;
 28 e6f4b2e3 2003-10-13 devnull 		}
 29 e6f4b2e3 2003-10-13 devnull 		name = nambuf;
 30 e6f4b2e3 2003-10-13 devnull 	}
 31 9b4a2324 2009-07-09 rsc 	if(fd >= 0)
 32 9b4a2324 2009-07-09 rsc 		n = _drawflength(fd);
 33 9b4a2324 2009-07-09 rsc 	if(fd < 0 && strncmp(name, "/mnt/font/", 10) == 0) {
 34 9b4a2324 2009-07-09 rsc 		fd = _fontpipe(name+10);
 35 9b4a2324 2009-07-09 rsc 		n = 8192;
 36 9b4a2324 2009-07-09 rsc 	}
 37 76193d7c 2003-09-30 devnull 	if(fd < 0)
 38 76193d7c 2003-09-30 devnull 		return 0;
 39 76193d7c 2003-09-30 devnull 
 40 76193d7c 2003-09-30 devnull 	buf = malloc(n+1);
 41 76193d7c 2003-09-30 devnull 	if(buf == 0){
 42 76193d7c 2003-09-30 devnull 		close(fd);
 43 e6f4b2e3 2003-10-13 devnull 		free(nambuf);
 44 76193d7c 2003-09-30 devnull 		return 0;
 45 76193d7c 2003-09-30 devnull 	}
 46 9b4a2324 2009-07-09 rsc 	i = readn(fd, buf, n);
 47 76193d7c 2003-09-30 devnull 	close(fd);
 48 9b4a2324 2009-07-09 rsc 	if(i <= 0){
 49 76193d7c 2003-09-30 devnull 		free(buf);
 50 e6f4b2e3 2003-10-13 devnull 		free(nambuf);
 51 76193d7c 2003-09-30 devnull 		return 0;
 52 76193d7c 2003-09-30 devnull 	}
 53 9b4a2324 2009-07-09 rsc 	buf[i] = 0;
 54 76193d7c 2003-09-30 devnull 	fnt = buildfont(d, buf, name);
 55 76193d7c 2003-09-30 devnull 	free(buf);
 56 e6f4b2e3 2003-10-13 devnull 	free(nambuf);
 57 76193d7c 2003-09-30 devnull 	return fnt;
 58 76193d7c 2003-09-30 devnull }
 59 9b4a2324 2009-07-09 rsc 
 60 9b4a2324 2009-07-09 rsc int
 61 9b4a2324 2009-07-09 rsc _fontpipe(char *name)
 62 9b4a2324 2009-07-09 rsc {
 63 9b4a2324 2009-07-09 rsc 	int p[2];
 64 9b4a2324 2009-07-09 rsc 	char c;
 65 9b4a2324 2009-07-09 rsc 	char buf[1024], *argv[10];
 66 9b4a2324 2009-07-09 rsc 	int nbuf, pid;
 67 9b4a2324 2009-07-09 rsc 	
 68 9b4a2324 2009-07-09 rsc 	if(pipe(p) < 0)
 69 9b4a2324 2009-07-09 rsc 		return -1;
 70 9b4a2324 2009-07-09 rsc 	pid = rfork(RFNOWAIT|RFFDG|RFPROC);
 71 9b4a2324 2009-07-09 rsc 	if(pid < 0) {
 72 9b4a2324 2009-07-09 rsc 		close(p[0]);
 73 9b4a2324 2009-07-09 rsc 		close(p[1]);
 74 9b4a2324 2009-07-09 rsc 		return -1;
 75 9b4a2324 2009-07-09 rsc 	}
 76 9b4a2324 2009-07-09 rsc 	if(pid == 0) {
 77 9b4a2324 2009-07-09 rsc 		close(p[0]);
 78 9b4a2324 2009-07-09 rsc 		dup(p[1], 1);
 79 9b4a2324 2009-07-09 rsc 		dup(p[1], 2);
 80 9b4a2324 2009-07-09 rsc 		if(p[1] > 2)
 81 9b4a2324 2009-07-09 rsc 			close(p[1]);
 82 9b4a2324 2009-07-09 rsc 		argv[0] = "fontsrv";
 83 9b4a2324 2009-07-09 rsc 		argv[1] = "-pp";
 84 9b4a2324 2009-07-09 rsc 		argv[2] = name;
 85 9b4a2324 2009-07-09 rsc 		argv[3] = nil;
 86 9b4a2324 2009-07-09 rsc 		execvp("fontsrv", argv);
 87 9b4a2324 2009-07-09 rsc 		print("exec fontsrv: %r\n");
 88 9b4a2324 2009-07-09 rsc 		_exit(0);
 89 9b4a2324 2009-07-09 rsc 	}
 90 9b4a2324 2009-07-09 rsc 	close(p[1]);
 91 9b4a2324 2009-07-09 rsc 	
 92 9b4a2324 2009-07-09 rsc 	// success marked with leading \001.
 93 9b4a2324 2009-07-09 rsc 	// otherwise an error happened.
 94 9b4a2324 2009-07-09 rsc 	for(nbuf=0; nbuf<sizeof buf-1; nbuf++) {
 95 9b4a2324 2009-07-09 rsc 		if(read(p[0], &c, 1) < 1 || c == '\n') {
 96 9b4a2324 2009-07-09 rsc 			buf[nbuf] = '\0';
 97 9b4a2324 2009-07-09 rsc 			werrstr(buf);
 98 9b4a2324 2009-07-09 rsc 			close(p[0]);
 99 9b4a2324 2009-07-09 rsc 			return -1;
100 9b4a2324 2009-07-09 rsc 		}
101 9b4a2324 2009-07-09 rsc 		if(c == '\001')
102 9b4a2324 2009-07-09 rsc 			break;
103 9b4a2324 2009-07-09 rsc 	}
104 9b4a2324 2009-07-09 rsc 	return p[0];
105 9b4a2324 2009-07-09 rsc }