Subversion Repositories planix.SVN

#include "os.h"
#include <libsec.h>

static char*
readfile(char *name)
{
        int fd;
        char *s;
        Dir *d;

        fd = open(name, OREAD);
        if(fd < 0)
                return nil;
        if((d = dirfstat(fd)) == nil) {
                close(fd);
                return nil;
        }
        s = malloc(d->length + 1);
        if(s == nil || readn(fd, s, d->length) != d->length){
                free(s);
                free(d);
                close(fd);
                return nil;
        }
        close(fd);
        s[d->length] = '\0';
        free(d);
        return s;
}

uchar*
readcert(char *filename, int *pcertlen)
{
        char *pem;
        uchar *binary;

        pem = readfile(filename);
        if(pem == nil){
                werrstr("can't read %s: %r", filename);
                return nil;
        }
        binary = decodePEM(pem, "CERTIFICATE", pcertlen, nil);
        free(pem);
        if(binary == nil){
                werrstr("can't parse %s", filename);
                return nil;
        }
        return binary;
}

PEMChain *
readcertchain(char *filename)
{
        char *chfile;

        chfile = readfile(filename);
        if (chfile == nil) {
                werrstr("can't read %s: %r", filename);
                return nil;
        }
        return decodepemchain(chfile, "CERTIFICATE");
}