add RUNAS_DEFAULT

OPTIONS

@@ -1,5 +1,9 @@
 The following options may be used to configure sudo 1.4
 
+RUNAS_DEFAULT
+    The default user to run commands as if the -u flag is not specified
+    on the command line.  This defaults to "root".
+
 FQDN
     Define this if you want to put fully qualified hostnames in the sudoers
     file.  Ie: instead of myhost you would use myhost.mydomain.edu.

options.h

@@ -31,6 +31,7 @@
 
 /* User-configurable Sudo runtime options */
 
+#define RUNAS_DEFAULT "root"	/* default user to run cmd as if no -u flag */
 /*#define FQDN			/* expect fully qualified hosts in sudoers */
 #define LOGGING SLOG_SYSLOG	/* log via SLOG_SYSLOG, SLOG_FILE, SLOG_BOTH */
 #define LOGFAC LOG_LOCAL2	/* syslog facility for sudo to use */

parse.yacc

@@ -308,7 +308,7 @@ opcmnd		:	cmnd { ; }
 		;
 
 runasspec	:	/* empty */ {
-			    $$ = (strcmp("root", runas_user) == 0);
+			    $$ = (strcmp(RUNAS_DEFAULT, runas_user) == 0);
 			}
 		|	RUNAS runaslist {
 			    $$ = $2;

sudo.c

@@ -141,7 +141,7 @@ char **Argv;
 int NewArgc = 0;
 char **NewArgv = NULL;
 struct passwd *user_pw_ent;
-char *runas_user = "root";
+char *runas_user = RUNAS_DEFAULT;
 char *cmnd = NULL;
 char *cmnd_args = NULL;
 char *tty = "unknown";

testsudoers.c

@@ -78,7 +78,7 @@ extern int num_interfaces;
 
 char *cmnd = NULL;
 char *cmnd_args = NULL;
-char *runas_user = "root";
+char *runas_user = RUNAS_DEFAULT;
 char host[MAXHOSTNAMELEN];
 char *shost;
 char cwd[MAXPATHLEN];

visudo.c

@@ -105,7 +105,7 @@ int NewArgc = 0;
 char *sudoers = _PATH_SUDO_SUDOERS;
 char *stmp = _PATH_SUDO_STMP;
 int parse_error = FALSE;
-char *runas_user = "root";
+char *runas_user = RUNAS_DEFAULT;
 
 /*
  * For the parsing routines