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(get_default_username): a better way of guessing when the user has

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@6452 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
1999-07-13 08:57:49 +00:00
parent 3ebb7f50a9
commit cf94f34881
1 changed files with 22 additions and 15 deletions
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37
lib/roken/get_default_username.c
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@@ -51,28 +51,35 @@ RCSID("$Id$");
const char * const char *
get_default_username (void) get_default_username (void)
{ {
const char *p; const char *user;
user = getenv ("USER");
if (user == NULL)
user = getenv ("LOGNAME");
if (user == NULL)
user = getenv ("USERNAME");
p = getenv ("USER");
if (p != NULL)
return p;
p = getenv ("LOGNAME");
if (p != NULL)
return p;
p = getenv ("USERNAME");
if (p != NULL)
return p;
#if defined(HAVE_GETLOGIN) && !defined(POSIX_GETLOGIN) #if defined(HAVE_GETLOGIN) && !defined(POSIX_GETLOGIN)
p = (const char *)getlogin (); if (user == NULL) {
if (p != NULL) user = (const char *)getlogin ();
return p; if (user != NULL)
return user;
}
#endif #endif
#ifdef HAVE_PWD_H #ifdef HAVE_PWD_H
{ {
struct passwd *pwd = k_getpwuid (getuid ()); uid_t uid = getuid ();
struct passwd *pwd;
if (user != NULL) {
pwd = k_getpwnam (user);
if (pwd != NULL && pwd->pw_uid == uid)
return user;
}
pwd = k_getpwuid (uid);
if (pwd != NULL) if (pwd != NULL)
return pwd->pw_name; return pwd->pw_name;
} }
#endif #endif
return NULL; return user;
} }