diff options
author | rsc <devnull@localhost> | 2004-06-17 03:27:35 +0000 |
---|---|---|
committer | rsc <devnull@localhost> | 2004-06-17 03:27:35 +0000 |
commit | be8b315d1522fa1c109a49435c1638bafd838b91 (patch) | |
tree | 4d8e2a0799ab463160b0a80feb0a008940d11230 /src/libauth/auth_chuid.c | |
parent | d9c8a7c5366aea63aa45b4afc6a75d133192786d (diff) | |
download | plan9port-be8b315d1522fa1c109a49435c1638bafd838b91.tar.gz plan9port-be8b315d1522fa1c109a49435c1638bafd838b91.tar.bz2 plan9port-be8b315d1522fa1c109a49435c1638bafd838b91.zip |
basically none of these build
Diffstat (limited to 'src/libauth/auth_chuid.c')
-rw-r--r-- | src/libauth/auth_chuid.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/libauth/auth_chuid.c b/src/libauth/auth_chuid.c new file mode 100644 index 00000000..1bfbfff9 --- /dev/null +++ b/src/libauth/auth_chuid.c @@ -0,0 +1,38 @@ +#include <u.h> +#include <libc.h> +#include <auth.h> + +/* + * become the authenticated user + */ +int +auth_chuid(AuthInfo *ai, char *ns) +{ + int rv, fd; + + if(ai == nil || ai->cap == nil){ + werrstr("no capability"); + return -1; + } + + /* change uid */ + fd = open("#¤/capuse", OWRITE); + if(fd < 0){ + werrstr("opening #¤/capuse: %r"); + return -1; + } + rv = write(fd, ai->cap, strlen(ai->cap)); + close(fd); + if(rv < 0){ + werrstr("writing %s to #¤/capuse: %r", ai->cap); + return -1; + } + + /* get a link to factotum as new user */ + fd = open("/srv/factotum", ORDWR); + if(fd >= 0) + mount(fd, -1, "/mnt", MREPL, ""); + + /* set up new namespace */ + return newns(ai->cuid, ns); +} |