* libmisc/limits.c: Avoid implicit conversion of integer to

boolean.
	* libmisc/basename.c: Avoid implicit conversion of pointer to
	boolean.
	* libmisc/basename.c, lib/prototypes.h (Basename): Return a
	constant string.
	* libmisc/basename.c, libmisc/obscure.c, lib/prototypes.h,
	libmisc/xmalloc.c, libmisc/getdate.h, libmisc/system.c,
	libmisc/getgr_nam_gid.c, libmisc/failure.c, libmisc/valid.c: Add
	splint annotations.
	* libmisc/chowndir.c: Avoid memory leak.
	* libmisc/chowndir.c: Do not check *printf/*puts return value.
	* libmisc/chowntty.c: Avoid implicit conversion between integer
	types.
	* libmisc/obscure.c: Return a bool when possible instead of int.
	* libmisc/shell.c: Do not check *printf/*puts return value.
	* libmisc/shell.c: Do not check execle return value.
	* libmisc/setupenv.c: Avoid implicit conversion between integer
	types.
	* libmisc/xmalloc.c: size should not be zero to avoid returning
	NULL pointers.
	* libmisc/hushed.c: Do not check *printf/*puts return value.
	* libmisc/system.c: Avoid implicit conversion of integer to
	boolean. safe_system last argument is a boolean.
	* libmisc/system.c: Check return value of dup2.
	* libmisc/system.c: Do not check *printf/*puts return value.
	* libmisc/system.c: Do not check execve return value. 
	* libmisc/salt.c: Do not check *printf/*puts return value.
	* libmisc/loginprompt.c: Do not check gethostname return value.
	* libmisc/find_new_gid.c, libmisc/find_new_uid.c: Do not check
	gr_rewind/pw_rewind return value.
	* libmisc/ttytype.c: Limit the number of parsed characters in the
	sscanf format.
	* libmisc/ttytype.c: Test if a type was really read.
	* libmisc/sub.c: Do not check *printf/*puts return value.
	* libmisc/sub.c: Avoid implicit conversion of integer to boolean.
	* src/userdel.c: Fix typo in comment.
	* src/userdel.c: Avoid implicit conversion of boolean to integer.
	* src/userdel.c: safe_system last argument is a boolean.
	* src/newusers.c: Avoid implicit conversion of boolean to integer.
	* src/newusers.c: Avoid implicit conversion of integer to boolean.
	* src/usermod.c: Add brackets.
	* src/usermod.c: Avoid implicit conversion of characters or
	integers to booleans.
	* src/vipw.c: Avoid implicit conversion of integer to boolean.
	* src/su.c: Avoid implicit conversion of integer to boolean.
	* src/su.c: Add brackets.
	* src/useradd.c: Avoid implicit conversion of characters or
	integers to booleans.

libmisc/chowndir.c

@@ -78,6 +78,7 @@ int chown_tree (const char *root,
 	 */
 
 	if (access (root, F_OK) != 0) {
+		free (new_name);
 		return -1;
 	}
 
@@ -90,6 +91,7 @@ int chown_tree (const char *root,
 
 	dir = opendir (root);
 	if (NULL == dir) {
+		free (new_name);
 		return -1;
 	}
 
@@ -120,7 +122,7 @@ int chown_tree (const char *root,
 			new_name_len += 1024;
 		}
 
-		snprintf (new_name, new_name_len, "%s/%s", root, ent->d_name);
+		(void) snprintf (new_name, new_name_len, "%s/%s", root, ent->d_name);
 
 		/* Don't follow symbolic links! */
 		if (LSTAT (new_name, &sb) == -1) {