diff options
Diffstat (limited to 'crypto/heimdal/lib/krb5/get_default_principal.c')
| -rw-r--r-- | crypto/heimdal/lib/krb5/get_default_principal.c | 45 |
1 files changed, 38 insertions, 7 deletions
diff --git a/crypto/heimdal/lib/krb5/get_default_principal.c b/crypto/heimdal/lib/krb5/get_default_principal.c index 84d7a5e..f8ed48f 100644 --- a/crypto/heimdal/lib/krb5/get_default_principal.c +++ b/crypto/heimdal/lib/krb5/get_default_principal.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 1997 - 1999 Kungliga Tekniska Högskolan + * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * @@ -33,12 +33,23 @@ #include "krb5_locl.h" -RCSID("$Id: get_default_principal.c,v 1.5 1999/12/02 17:05:09 joda Exp $"); +RCSID("$Id: get_default_principal.c,v 1.7 2001/05/14 06:14:46 assar Exp $"); /* * Try to find out what's a reasonable default principal. */ +static const char* +get_env_user(void) +{ + const char *user = getenv("USER"); + if(user == NULL) + user = getenv("LOGNAME"); + if(user == NULL) + user = getenv("USERNAME"); + return user; +} + krb5_error_code krb5_get_default_principal (krb5_context context, krb5_principal *princ) @@ -46,6 +57,7 @@ krb5_get_default_principal (krb5_context context, krb5_error_code ret; krb5_ccache id; const char *user; + uid_t uid; ret = krb5_cc_default (context, &id); if (ret == 0) { @@ -55,13 +67,32 @@ krb5_get_default_principal (krb5_context context, return 0; } - user = get_default_username (); - if (user == NULL) - return ENOTTY; - if (getuid () == 0) { - ret = krb5_make_principal(context, princ, NULL, user, "root", NULL); + + uid = getuid(); + if(uid == 0) { + user = getlogin(); + if(user == NULL) + user = get_env_user(); + if(user != NULL && strcmp(user, "root") != 0) + ret = krb5_make_principal(context, princ, NULL, user, "root", NULL); + else + ret = krb5_make_principal(context, princ, NULL, "root", NULL); } else { + struct passwd *pw = getpwuid(uid); + if(pw != NULL) + user = pw->pw_name; + else { + user = get_env_user(); + if(user == NULL) + user = getlogin(); + } + if(user == NULL) { + krb5_set_error_string(context, + "unable to figure out current principal"); + return ENOTTY; /* XXX */ + } ret = krb5_make_principal(context, princ, NULL, user, NULL); } + return ret; } |
