Author: Lance Lin <lq27267@gmail.com>
Date: Tue, 25 Feb 2025 20:27:50 +0700
Description: Fix FTBFS with GCC-15

--- a/src/cronnext.c
+++ b/src/cronnext.c
@@ -55,7 +55,7 @@
 
 #ifdef WITH_SELINUX
 int get_security_context(const char *name, int crontab_fd,
-			 security_context_t *rcontext, const char *tabname) {
+			 char **rcontext, const char *tabname) {
 /* empty stub */
 	(void)name;
 	(void)crontab_fd;
@@ -64,7 +64,7 @@
 	return 0;
 }
 
-void free_security_context(security_context_t *scontext) {
+void free_security_context(char **scontext) {
 /* empty stub */
 	(void)scontext;
 }
--- a/src/crontab.c
+++ b/src/crontab.c
@@ -303,7 +303,7 @@
 			break;
 #ifdef WITH_SELINUX
 		case 's':
-			if (getprevcon((security_context_t *) & (selinux_context))) {
+			if (getprevcon((char **) & (selinux_context))) {
 				fprintf(stderr, "Cannot obtain SELinux process context\n");
 				exit(ERROR_EXIT);
 			}
--- a/src/funcs.h
+++ b/src/funcs.h
@@ -89,7 +89,7 @@
 user		*load_user(int, struct passwd *, const char *, const char *, const char *),
 		*find_user(cron_db *, const char *, const char *);
 
-entry		*load_entry(FILE *, void (*)(), struct passwd *, char **);
+entry		*load_entry(FILE *, void (*)(const char *), struct passwd *, char **);
 
 FILE		*cron_popen(char *, const char *, struct passwd *, char **);
 
@@ -115,11 +115,11 @@
 
 int get_security_context(const char *name, 
 			 int crontab_fd, 
-			 security_context_t *rcontext, 
+			 char **rcontext,
 			 const char *tabname
                         );
 
-void free_security_context( security_context_t *scontext );
+void free_security_context( char **scontext );
 
 int crontab_security_access(void);
 
--- a/src/security.c
+++ b/src/security.c
@@ -94,8 +94,8 @@
 static char **build_env(char **cronenv);
 
 #ifdef WITH_SELINUX
-static int cron_change_selinux_range(user * u, security_context_t ucontext);
-static int cron_get_job_range(user * u, security_context_t * ucontextp,
+static int cron_change_selinux_range(user * u, char * ucontext);
+static int cron_get_job_range(user * u, char ** ucontextp,
 	char **jobenv);
 #endif
 
@@ -137,7 +137,7 @@
 	/* we must get the crontab context BEFORE changing user, else
 	 * we'll not be permitted to read the cron spool directory :-)
 	 */
-	security_context_t ucontext = 0;
+	char * ucontext = 0;
 
 	if (cron_get_job_range(u, &ucontext, e->envp) < OK) {
 		log_it(e->pwd->pw_name, getpid(), "ERROR",
@@ -276,8 +276,8 @@
 
 
 #ifdef WITH_SELINUX
-static int cron_authorize_context(security_context_t scontext,
-	security_context_t file_context) {
+static int cron_authorize_context(char * scontext,
+	char * file_context) {
 	struct av_decision avd;
 	int retval;
 	security_class_t tclass;
@@ -309,8 +309,8 @@
 #endif
 
 #ifdef WITH_SELINUX
-static int cron_authorize_range(security_context_t scontext,
-	security_context_t ucontext) {
+static int cron_authorize_range(char * scontext,
+	char * ucontext) {
 	struct av_decision avd;
 	int retval;
 	security_class_t tclass;
@@ -345,7 +345,7 @@
 /* always uses u->scontext as the default process context, then changes the
 	 level, and returns it in ucontextp (or NULL otherwise) */
 static int
-cron_get_job_range(user * u, security_context_t * ucontextp, char **jobenv) {
+cron_get_job_range(user * u, char ** ucontextp, char **jobenv) {
 	char *range;
 
 	if (is_selinux_enabled() <= 0)
@@ -398,7 +398,7 @@
 #endif
 
 #ifdef WITH_SELINUX
-static int cron_change_selinux_range(user * u, security_context_t ucontext) {
+static int cron_change_selinux_range(user * u, char * ucontext) {
 	char *msg = NULL;
 
 	if (is_selinux_enabled() <= 0)
@@ -481,10 +481,10 @@
 #ifdef WITH_SELINUX
 int
 get_security_context(const char *name, int crontab_fd,
-	security_context_t * rcontext, const char *tabname) {
-	security_context_t scontext = NULL;
-	security_context_t file_context = NULL;
-	security_context_t rawcontext=NULL;
+	char ** rcontext, const char *tabname) {
+	char * scontext = NULL;
+	char * file_context = NULL;
+	char * rawcontext=NULL;
 	context_t current_context = NULL;
 	int retval;
 	char *current_context_str = NULL;
@@ -589,7 +589,7 @@
 #endif
 
 #ifdef WITH_SELINUX
-void free_security_context(security_context_t * scontext) {
+void free_security_context(char ** scontext) {
 	if (*scontext != NULL) {
 		freecon(*scontext);
 		*scontext = NULL;
@@ -601,7 +601,7 @@
 int crontab_security_access(void) {
 	int selinux_check_passwd_access = -1;
 	if (is_selinux_enabled() > 0) {
-		security_context_t user_context;
+		char * user_context;
 		if (getprevcon_raw(&user_context) == 0) {
 			security_class_t passwd_class;
 			access_vector_t crontab_bit;
--- a/src/structs.h
+++ b/src/structs.h
@@ -57,9 +57,6 @@
 			 *
 			 * These are the crontabs.
 			 */
-#ifndef WITH_SELINUX
-#define security_context_t unsigned
-#endif
 
 typedef	struct _user {
 	struct _user	*next, *prev;	/* links */
@@ -67,7 +64,7 @@
 	char		*tabname;       /* /etc/cron.d/ file name or NULL */
 	time_t		mtime;		/* last modtime of crontab */
 	entry		*crontab;	/* this person's crontab */
-	security_context_t	scontext;    /* SELinux security context */
+	char *	scontext;    /* SELinux security context */
 	int		system;		/* is it a system crontab */
 } user;
 
--- a/src/entry.c
+++ b/src/entry.c
@@ -90,7 +90,7 @@
 /* return NULL if eof or syntax error occurs;
  * otherwise return a pointer to a new entry.
  */
-entry *load_entry(FILE * file, void (*error_func) (), struct passwd *pw,
+entry *load_entry(FILE * file, void (*error_func) (const char *), struct passwd *pw,
 	char **envp) {
 	/* this function reads one crontab entry -- the next -- from a file.
 	 * it skips any leading blank lines, ignores comments, and returns