1 #include <u.h>
2 #include <libc.h>
3 #include <auth.h>
4 #include <mp.h>
5 #include <libsec.h>
6 
7 static char*
8 readfile(char *name)
9 {
10 	int fd;
11 	char *s;
12 	Dir *d;
13 
14 	fd = open(name, OREAD);
15 	if(fd < 0)
16 		return nil;
17 	if((d = dirfstat(fd)) == nil)
18 		return nil;
19 	s = malloc(d->length + 1);
20 	if(s == nil || readn(fd, s, d->length) != d->length){
21 		free(s);
22 		free(d);
23 		close(fd);
24 		return nil;
25 	}
26 	close(fd);
27 	s[d->length] = '\0';
28 	free(d);
29 	return s;
30 }
31 
32 uchar*
33 readcert(char *filename, int *pcertlen)
34 {
35 	char *pem;
36 	uchar *binary;
37 
38 	pem = readfile(filename);
39 	if(pem == nil){
40 		werrstr("can't read %s", filename);
41 		return nil;
42 	}
43 	binary = decodepem(pem, "CERTIFICATE", pcertlen, nil);
44 	free(pem);
45 	if(binary == nil){
46 		werrstr("can't parse %s", filename);
47 		return nil;
48 	}
49 	return binary;
50 }
51 
52 
53 PEMChain *
54 readcertchain(char *filename)
55 {
56 	char *chfile;
57 	PEMChain *chp;
58 
59 	chfile = readfile(filename);
60 	if (chfile == nil) {
61 		werrstr("can't read %s", filename);
62 		return nil;
63 	}
64 	chp = decodepemchain(chfile, "CERTIFICATE");
65 	return chp;
66 }