diff options
author | rsc <devnull@localhost> | 2005-02-13 18:04:20 +0000 |
---|---|---|
committer | rsc <devnull@localhost> | 2005-02-13 18:04:20 +0000 |
commit | 57fcfc2a0b8ecd266ce130dab9a29b7ceb558d64 (patch) | |
tree | 2d7dc505e9bda2e49efdc13ed459d7e2fad5f579 /src/cmd/auth/asn12dsa.c | |
parent | ce94dbe662155bd60d6839b5e8c82ad708667bcd (diff) | |
download | plan9port-57fcfc2a0b8ecd266ce130dab9a29b7ceb558d64.tar.gz plan9port-57fcfc2a0b8ecd266ce130dab9a29b7ceb558d64.tar.bz2 plan9port-57fcfc2a0b8ecd266ce130dab9a29b7ceb558d64.zip |
add others
Diffstat (limited to 'src/cmd/auth/asn12dsa.c')
-rw-r--r-- | src/cmd/auth/asn12dsa.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/src/cmd/auth/asn12dsa.c b/src/cmd/auth/asn12dsa.c new file mode 100644 index 00000000..7df5dd78 --- /dev/null +++ b/src/cmd/auth/asn12dsa.c @@ -0,0 +1,70 @@ +#include <u.h> +#include <libc.h> +#include <bio.h> +#include <mp.h> +#include <libsec.h> + +void +usage(void) +{ + fprint(2, "auth/asn12dsa [-t tag] [file]\n"); + exits("usage"); +} + +void +main(int argc, char **argv) +{ + char *s; + uchar *buf; + int fd; + long n, tot; + char *tag, *file; + DSApriv *key; + + fmtinstall('B', mpfmt); + + tag = nil; + ARGBEGIN{ + case 't': + tag = EARGF(usage()); + break; + default: + usage(); + }ARGEND + + if(argc != 0 && argc != 1) + usage(); + + if(argc == 1) + file = argv[0]; + else + file = "/dev/stdin"; + + if((fd = open(file, OREAD)) < 0) + sysfatal("open %s: %r", file); + buf = nil; + tot = 0; + for(;;){ + buf = realloc(buf, tot+8192); + if(buf == nil) + sysfatal("realloc: %r"); + if((n = read(fd, buf+tot, 8192)) < 0) + sysfatal("read: %r"); + if(n == 0) + break; + tot += n; + } + + key = asn1toDSApriv(buf, tot); + if(key == nil) + sysfatal("couldn't parse asn1 key"); + + s = smprint("key proto=dsa %s%sp=%B q=%B alpha=%B key=%B !secret=%B\n", + tag ? tag : "", tag ? " " : "", + key->pub.p, key->pub.q, key->pub.alpha, key->pub.key, + key->secret); + if(s == nil) + sysfatal("smprint: %r"); + write(1, s, strlen(s)); + exits(0); +} |