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Use current user id to get user name.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@18242 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-Macdonald 2003-11-30 10:20:26 +00:00
parent d2936869b9
commit 34fcca39c1
2 changed files with 43 additions and 59 deletions
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2
ChangeLog
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@ -2,6 +2,8 @@
* Source/NSNumber.m: Raise exception if user code incorrectly tries * Source/NSNumber.m: Raise exception if user code incorrectly tries
to deallocate a cached small number. to deallocate a cached small number.
* Source/NSUser.m: Use geteuid() to determine name of current user
under unix.
2003-11-25 Richard Frith-Macdonald <rfm@gnu.org> 2003-11-25 Richard Frith-Macdonald <rfm@gnu.org>

100
Source/NSUser.m
View file

@ -104,31 +104,26 @@ GSSetUserName(NSString* name)
{ {
NSUserName(); // Ensure we know the old user name. NSUserName(); // Ensure we know the old user name.
} }
if ([theUserName isEqualToString: name] == NO) /*
{ * We can destroy the cached user path so that next time
/* * anything wants it, it will be regenerated.
* We can destroy the cached user path so that next time */
* anything wants it, it will be regenerated. DESTROY(gnustep_user_root);
*/ /*
DESTROY(gnustep_user_root); * Next we can set up the new user name, and reset the user defaults
/* * system so that standard user defaults will be those of the new
* Next we can set up the new user name, and reset the user defaults * user.
* system so that standard user defaults will be those of the new */
* user. ASSIGN(theUserName, name);
*/ [NSUserDefaults resetStandardUserDefaults];
ASSIGN(theUserName, name);
[NSUserDefaults resetStandardUserDefaults];
}
} }
/** /**
* Return the caller's login name as an NSString object. * Return the caller's login name as an NSString object.<br />
* The 'LOGNAME' environment variable is our primary source, but we use * Under ms-windows, the 'LOGNAME' environment variable is used as the
* other system-dependent sources if LOGNAME is not set. This function * user name.<br />
* is intended to return the name under which the user logged in rather * Under unix-like systems, the name associated with the current
* than the name associated with their numeric user ID (though the two * effective user ID is used.
* are usually the same). If you have a setuid program and want to
* change the user to reflect the uid, use GSSetUserName()
*/ */
/* NOTE FOR DEVELOPERS. /* NOTE FOR DEVELOPERS.
* If you change the behavior of this method you must also change * If you change the behavior of this method you must also change
@ -137,10 +132,10 @@ GSSetUserName(NSString* name)
NSString * NSString *
NSUserName(void) NSUserName(void)
{ {
#if defined(__WIN32__)
if (theUserName == nil) if (theUserName == nil)
{ {
const char *loginName = 0; const char *loginName = 0;
#if defined(__WIN32__)
/* The GetUserName function returns the current user name */ /* The GetUserName function returns the current user name */
char buf[1024]; char buf[1024];
DWORD n = 1024; DWORD n = 1024;
@ -149,48 +144,35 @@ NSUserName(void)
loginName = buf; loginName = buf;
else if (GetUserName(buf, &n) != 0 && buf[0] != '\0') else if (GetUserName(buf, &n) != 0 && buf[0] != '\0')
loginName = buf; loginName = buf;
#else
loginName = getenv("LOGNAME");
#ifdef HAVE_GETPWNAM
/*
* Check that LOGNAME contained legal name.
*/
if (loginName != 0 && getpwnam(loginName) == 0)
{
loginName = 0;
}
#endif /* HAVE_GETPWNAM */
#ifdef HAVE_GETLOGIN
/*
* Try getlogin() if LOGNAME environmentm variable didn't work.
*/
if (loginName == 0)
{
loginName = getlogin();
}
#endif /* HAVE_GETLOGIN */
#ifdef HAVE_GETPWUID
/*
* Try getting the name of the effective user as a last resort.
*/
if (loginName == 0)
{
#ifdef HAVE_GETEUID
int uid = geteuid();
#else
int uid = getuid();
#endif /* HAVE_GETEUID */
struct passwd *pwent = getpwuid (uid);
loginName = pwent->pw_name;
}
#endif /* HAVE_GETPWUID */
#endif
if (loginName) if (loginName)
theUserName = [[NSString alloc] initWithCString: loginName]; theUserName = [[NSString alloc] initWithCString: loginName];
else else
[NSException raise: NSInternalInconsistencyException [NSException raise: NSInternalInconsistencyException
format: @"Unable to determine current user name"]; format: @"Unable to determine current user name"];
} }
#else
static int olduid = 0;
#ifdef HAVE_GETEUID
int uid = geteuid();
#else
int uid = getuid();
#endif /* HAVE_GETEUID */
if (theUserName == nil || uid != olduid)
{
const char *loginName = 0;
#ifdef HAVE_GETPWUID
struct passwd *pwent = getpwuid (uid);
loginName = pwent->pw_name;
#endif /* HAVE_GETPWUID */
olduid = uid;
if (loginName)
theUserName = [[NSString alloc] initWithCString: loginName];
else
[NSException raise: NSInternalInconsistencyException
format: @"Unable to determine current user name"];
}
#endif
return theUserName; return theUserName;
} }