1 24c02865 2005-01-04 devnull #include <u.h>
  2 24c02865 2005-01-04 devnull #include <libc.h>
  3 24c02865 2005-01-04 devnull #include <draw.h>
  4 24c02865 2005-01-04 devnull #include <event.h>
  5 24c02865 2005-01-04 devnull #include <bio.h>
  6 24c02865 2005-01-04 devnull #include "page.h"
  7 24c02865 2005-01-04 devnull 
  8 24c02865 2005-01-04 devnull Document*
  9 24c02865 2005-01-04 devnull initfilt(Biobuf *b, int argc, char **argv, uchar *buf, int nbuf, char *type, char *cmd, int docopy)
 10 24c02865 2005-01-04 devnull {
 11 24c02865 2005-01-04 devnull 	int ofd;
 12 24c02865 2005-01-04 devnull 	int p[2];
 13 24c02865 2005-01-04 devnull 	char xbuf[8192];
 14 24c02865 2005-01-04 devnull 	int n;
 15 24c02865 2005-01-04 devnull 
 16 24c02865 2005-01-04 devnull 	if(argc > 1) {
 17 24c02865 2005-01-04 devnull 		fprint(2, "can only view one %s file at a time\n", type);
 18 24c02865 2005-01-04 devnull 		return nil;
 19 24c02865 2005-01-04 devnull 	}
 20 24c02865 2005-01-04 devnull 
 21 24c02865 2005-01-04 devnull 	fprint(2, "converting from %s to postscript...\n", type);
 22 24c02865 2005-01-04 devnull 
 23 24c02865 2005-01-04 devnull 	if(docopy){
 24 24c02865 2005-01-04 devnull 		if(pipe(p) < 0){
 25 24c02865 2005-01-04 devnull 			fprint(2, "pipe fails: %r\n");
 26 24c02865 2005-01-04 devnull 			exits("Epipe");
 27 24c02865 2005-01-04 devnull 		}
 28 24c02865 2005-01-04 devnull 	}else{
 29 24c02865 2005-01-04 devnull 		p[0] = open("/dev/null", ORDWR);
 30 24c02865 2005-01-04 devnull 		p[1] = open("/dev/null", ORDWR);
 31 24c02865 2005-01-04 devnull 	}
 32 24c02865 2005-01-04 devnull 
 33 24c02865 2005-01-04 devnull 	ofd = opentemp("/tmp/pagecvtXXXXXXXXX");
 34 24c02865 2005-01-04 devnull 	switch(fork()){
 35 24c02865 2005-01-04 devnull 	case -1:
 36 24c02865 2005-01-04 devnull 		fprint(2, "fork fails: %r\n");
 37 24c02865 2005-01-04 devnull 		exits("Efork");
 38 24c02865 2005-01-04 devnull 	default:
 39 24c02865 2005-01-04 devnull 		close(p[1]);
 40 24c02865 2005-01-04 devnull 		if(docopy){
 41 24c02865 2005-01-04 devnull 			write(p[0], buf, nbuf);
 42 24c02865 2005-01-04 devnull 			if(b)
 43 24c02865 2005-01-04 devnull 				while((n = Bread(b, xbuf, sizeof xbuf)) > 0)
 44 24c02865 2005-01-04 devnull 					write(p[0], xbuf, n);
 45 24c02865 2005-01-04 devnull 			else
 46 24c02865 2005-01-04 devnull 				while((n = read(stdinfd, xbuf, sizeof xbuf)) > 0)
 47 24c02865 2005-01-04 devnull 					write(p[0], xbuf, n);
 48 24c02865 2005-01-04 devnull 		}
 49 24c02865 2005-01-04 devnull 		close(p[0]);
 50 24c02865 2005-01-04 devnull 		waitpid();
 51 24c02865 2005-01-04 devnull 		break;
 52 24c02865 2005-01-04 devnull 	case 0:
 53 24c02865 2005-01-04 devnull 		close(p[0]);
 54 24c02865 2005-01-04 devnull 		dup(p[1], 0);
 55 24c02865 2005-01-04 devnull 		dup(ofd, 1);
 56 24c02865 2005-01-04 devnull 		/* stderr shines through */
 57 24c02865 2005-01-04 devnull 		execl("/bin/rc", "rc", "-c", cmd, nil);
 58 24c02865 2005-01-04 devnull 		break;
 59 24c02865 2005-01-04 devnull 	}
 60 24c02865 2005-01-04 devnull 
 61 24c02865 2005-01-04 devnull 	if(b)
 62 24c02865 2005-01-04 devnull 		Bterm(b);
 63 24c02865 2005-01-04 devnull 	seek(ofd, 0, 0);
 64 24c02865 2005-01-04 devnull 	b = emalloc(sizeof(Biobuf));
 65 24c02865 2005-01-04 devnull 	Binit(b, ofd, OREAD);
 66 24c02865 2005-01-04 devnull 
 67 24c02865 2005-01-04 devnull 	return initps(b, argc, argv, nil, 0);
 68 24c02865 2005-01-04 devnull }
 69 24c02865 2005-01-04 devnull 
 70 24c02865 2005-01-04 devnull Document*
 71 24c02865 2005-01-04 devnull initdvi(Biobuf *b, int argc, char **argv, uchar *buf, int nbuf)
 72 24c02865 2005-01-04 devnull {
 73 24c02865 2005-01-04 devnull 	int fd;
 74 24c02865 2005-01-04 devnull 	char *name;
 75 24c02865 2005-01-04 devnull 	char cmd[256];
 76 24c02865 2005-01-04 devnull 	char fdbuf[20];
 77 24c02865 2005-01-04 devnull 
 78 24c02865 2005-01-04 devnull 	/*
 79 24c02865 2005-01-04 devnull 	 * Stupid DVIPS won't take standard input.
 80 24c02865 2005-01-04 devnull 	 */
 81 24c02865 2005-01-04 devnull 	if(b == nil){	/* standard input; spool to disk (ouch) */
 82 24c02865 2005-01-04 devnull 		fd = spooltodisk(buf, nbuf, &name);
 83 24c02865 2005-01-04 devnull 		sprint(fdbuf, "/fd/%d", fd);
 84 24c02865 2005-01-04 devnull 		b = Bopen(fdbuf, OREAD);
 85 24c02865 2005-01-04 devnull 		if(b == nil){
 86 24c02865 2005-01-04 devnull 			fprint(2, "cannot open disk spool file\n");
 87 24c02865 2005-01-04 devnull 			wexits("Bopen temp");
 88 24c02865 2005-01-04 devnull 		}
 89 24c02865 2005-01-04 devnull 		argv = &name;
 90 24c02865 2005-01-04 devnull 		argc = 1;
 91 24c02865 2005-01-04 devnull 	}
 92 24c02865 2005-01-04 devnull 
 93 24c02865 2005-01-04 devnull 	snprint(cmd, sizeof cmd, "dvips -Pps -r0 -q1 -f1 '%s'", argv[0]);
 94 24c02865 2005-01-04 devnull 	return initfilt(b, argc, argv, buf, nbuf, "dvi", cmd, 0);
 95 24c02865 2005-01-04 devnull }
 96 24c02865 2005-01-04 devnull 
 97 24c02865 2005-01-04 devnull Document*
 98 24c02865 2005-01-04 devnull inittroff(Biobuf *b, int argc, char **argv, uchar *buf, int nbuf)
 99 24c02865 2005-01-04 devnull {
100 24c02865 2005-01-04 devnull 	return initfilt(b, argc, argv, buf, nbuf, "troff", "lp -dstdout", 1);
101 24c02865 2005-01-04 devnull }
102 24c02865 2005-01-04 devnull 
103 24c02865 2005-01-04 devnull Document*
104 24c02865 2005-01-04 devnull initmsdoc(Biobuf *b, int argc, char **argv, uchar *buf, int nbuf)
105 24c02865 2005-01-04 devnull {
106 24c02865 2005-01-04 devnull 	return initfilt(b, argc, argv, buf, nbuf, "microsoft office", "doc2ps", 1);
107 24c02865 2005-01-04 devnull }