Move sudoers search path to struct sudoers_parser_config.

That way we can avoid passing it to init_parser() directly.
We still need sudoers_search_path to be shared between the lexer
and the parser.

plugins/sudoers/cvtsudoers.c

@@ -770,7 +770,7 @@ parse_sudoers(const char *input_file, struct cvtsudoers_config *conf)
 	input_file = "stdin";
     } else if ((sudoersin = fopen(input_file, "r")) == NULL)
 	sudo_fatal(U_("unable to open %s"), input_file);
-    init_parser(input_file, NULL, NULL);
+    init_parser(input_file, NULL);
     if (sudoersparse() && !parse_error) {
 	sudo_warnx(U_("failed to parse %s file, unknown error"), input_file);
 	parse_error = true;

plugins/sudoers/file.c

@@ -73,10 +73,10 @@ sudo_file_open(struct sudo_nss *nss)
 
     handle = malloc(sizeof(*handle));
     if (handle != NULL) {
-	const char *path_sudoers = policy_path_sudoers();
-	handle->fp = open_sudoers(path_sudoers, &outfile, false, NULL);
+	const struct sudoers_parser_config *conf = policy_sudoers_conf();
+	handle->fp = open_sudoers(conf->sudoers_path, &outfile, false, NULL);
 	if (handle->fp != NULL) {
-	    init_parser(NULL, path_sudoers, policy_sudoers_conf());
+	    init_parser(NULL, policy_sudoers_conf());
 	    init_parse_tree(&handle->parse_tree, NULL, NULL, nss);
 	    if (outfile != NULL) {
 		/* Update path to open sudoers file. */

plugins/sudoers/gram.c

@@ -3967,8 +3967,7 @@ free_parse_tree(struct sudoers_parse_tree *parse_tree)
  * the current sudoers file to path.
  */
 bool
-init_parser(const char *file, const char *path,
-    const struct sudoers_parser_config *conf)
+init_parser(const char *file, const struct sudoers_parser_config *conf)
 {
     bool ret = true;
     debug_decl(init_parser, SUDOERS_DEBUG_PARSER);
@@ -3976,6 +3975,15 @@ init_parser(const char *file, const char *path,
     free_parse_tree(&parsed_policy);
     parser_leak_init();
     init_lexer();
+    parse_error = false;
+
+    if (conf != NULL) {
+	parser_conf = *conf;
+    } else {
+	const struct sudoers_parser_config def_conf =
+	    SUDOERS_PARSER_CONFIG_INITIALIZER;
+	parser_conf = def_conf;
+    }
 
     sudo_rcstr_delref(sudoers);
     if (file != NULL) {
@@ -3988,8 +3996,9 @@ init_parser(const char *file, const char *path,
     }
 
     sudo_rcstr_delref(sudoers_search_path);
-    if (path != NULL) {
-	if ((sudoers_search_path = sudo_rcstr_dup(path)) == NULL) {
+    if (parser_conf.sudoers_path != NULL) {
+	sudoers_search_path = sudo_rcstr_dup(parser_conf.sudoers_path);
+	if (sudoers_search_path == NULL) {
 	    sudo_warnx(U_("%s: %s"), __func__, U_("unable to allocate memory"));
 	    ret = false;
 	}
@@ -3997,22 +4006,13 @@ init_parser(const char *file, const char *path,
 	sudoers_search_path = NULL;
     }
 
-    if (conf != NULL) {
-	parser_conf = *conf;
-    } else {
-	const struct sudoers_parser_config def_conf =
-	    SUDOERS_PARSER_CONFIG_INITIALIZER;
-	parser_conf = def_conf;
-    }
-    parse_error = false;
-
     debug_return_bool(ret);
 }
 
 bool
 reset_parser(void)
 {
-    return init_parser(NULL, NULL, NULL);
+    return init_parser(NULL, NULL);
 }
 
 /*

plugins/sudoers/gram.y

@@ -1784,8 +1784,7 @@ free_parse_tree(struct sudoers_parse_tree *parse_tree)
  * the current sudoers file to path.
  */
 bool
-init_parser(const char *file, const char *path,
-    const struct sudoers_parser_config *conf)
+init_parser(const char *file, const struct sudoers_parser_config *conf)
 {
     bool ret = true;
     debug_decl(init_parser, SUDOERS_DEBUG_PARSER);
@@ -1793,6 +1792,15 @@ init_parser(const char *file, const char *path,
     free_parse_tree(&parsed_policy);
     parser_leak_init();
     init_lexer();
+    parse_error = false;
+
+    if (conf != NULL) {
+	parser_conf = *conf;
+    } else {
+	const struct sudoers_parser_config def_conf =
+	    SUDOERS_PARSER_CONFIG_INITIALIZER;
+	parser_conf = def_conf;
+    }
 
     sudo_rcstr_delref(sudoers);
     if (file != NULL) {
@@ -1805,8 +1813,9 @@ init_parser(const char *file, const char *path,
     }
 
     sudo_rcstr_delref(sudoers_search_path);
-    if (path != NULL) {
-	if ((sudoers_search_path = sudo_rcstr_dup(path)) == NULL) {
+    if (parser_conf.sudoers_path != NULL) {
+	sudoers_search_path = sudo_rcstr_dup(parser_conf.sudoers_path);
+	if (sudoers_search_path == NULL) {
 	    sudo_warnx(U_("%s: %s"), __func__, U_("unable to allocate memory"));
 	    ret = false;
 	}
@@ -1814,22 +1823,13 @@ init_parser(const char *file, const char *path,
 	sudoers_search_path = NULL;
     }
 
-    if (conf != NULL) {
-	parser_conf = *conf;
-    } else {
-	const struct sudoers_parser_config def_conf =
-	    SUDOERS_PARSER_CONFIG_INITIALIZER;
-	parser_conf = def_conf;
-    }
-    parse_error = false;
-
     debug_return_bool(ret);
 }
 
 bool
 reset_parser(void)
 {
-    return init_parser(NULL, NULL, NULL);
+    return init_parser(NULL, NULL);
 }
 
 /*

plugins/sudoers/parse.h

@@ -326,6 +326,7 @@ struct cmnd_info {
  * Parse configuration settings, passed to init_parser().
  */
 struct sudoers_parser_config {
+    const char *sudoers_path;
     bool strict;
     bool recovery;
     int verbose;
@@ -334,6 +335,7 @@ struct sudoers_parser_config {
     gid_t sudoers_gid;
 };
 #define SUDOERS_PARSER_CONFIG_INITIALIZER {				\
+    NULL,	/* sudoers_path */					\
     false,	/* strict */						\
     true,	/* recovery */						\
     1,		/* verbose level 1 */					\
@@ -392,7 +394,7 @@ int check_aliases(struct sudoers_parse_tree *parse_tree, bool strict, bool quiet
 /* gram.y */
 extern struct sudoers_parse_tree parsed_policy;
 extern bool (*sudoers_error_hook)(const char *file, int line, int column, const char *fmt, va_list args);
-bool init_parser(const char *file, const char *path, const struct sudoers_parser_config *conf);
+bool init_parser(const char *file, const struct sudoers_parser_config *conf);
 bool reset_parser(void);
 void free_member(struct member *m);
 void free_members(struct member_list *members);

plugins/sudoers/policy.c

@@ -180,6 +180,7 @@ sudoers_policy_deserialize_info(void *v, struct defaults_list *defaults)
 	    }
 	}
     }
+    parser_conf.sudoers_path = path_sudoers;
 
     /* Parse command line settings. */
     sudo_user.flags = 0;
@@ -630,13 +631,6 @@ policy_sudoers_conf(void)
     return &parser_conf;
 }
 
-/* Return the path to the sudoers file, which may be set in the plugin args. */
-const char *
-policy_path_sudoers(void)
-{
-    return path_sudoers;
-}
-
 /* Return the path to ldap.conf file, which may be set in the plugin args. */
 const char *
 policy_path_ldap_conf(void)

plugins/sudoers/regress/fuzz/fuzz_sudoers.c

@@ -312,7 +312,7 @@ LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 
     /* Initialize defaults and parse sudoers. */
     init_defaults();
-    init_parser("sudoers", NULL, NULL);
+    init_parser("sudoers", NULL);
     sudoersrestart(fp);
     sudoersparse();
     reparent_parse_tree(&parse_tree);

plugins/sudoers/sudoers.h

@@ -448,7 +448,6 @@ void sudoers_debug_deregister(void);
 int sudoers_policy_deserialize_info(void *v, struct defaults_list *defaults);
 bool sudoers_policy_store_result(bool accepted, char *argv[], char *envp[], mode_t cmnd_umask, char *iolog_path, void *v);
 const struct sudoers_parser_config *policy_sudoers_conf(void);
-const char *policy_path_sudoers(void);
 const char *policy_path_ldap_conf(void);
 const char *policy_path_ldap_secret(void);
 

plugins/sudoers/testsudoers.c

@@ -280,7 +280,7 @@ main(int argc, char *argv[])
     /* Initialize the parser and set sudoers filename to "sudoers". */
     parser_conf.strict = true;
     parser_conf.verbose = 2;
-    init_parser("sudoers", NULL, &parser_conf);
+    init_parser("sudoers", &parser_conf);
 
     /*
      * Set runas passwd/group entries based on command line or sudoers.

plugins/sudoers/visudo.c

@@ -291,7 +291,8 @@ main(int argc, char *argv[])
      */
     parser_conf.strict = true;
     parser_conf.verbose = quiet ? 0 : 2;
-    init_parser(NULL, path_sudoers, &parser_conf);
+    parser_conf.sudoers_path = path_sudoers;
+    init_parser(NULL, &parser_conf);
     if ((sudoersin = open_sudoers(path_sudoers, &sudoers, true, NULL)) == NULL)
 	exit(EXIT_FAILURE);
     sudoers_setlocale(SUDOERS_LOCALE_SUDOERS, &oldlocale);
@@ -654,7 +655,7 @@ reparse_sudoers(char *editor, int editor_argc, char **editor_argv,
 	/* Clean slate for each parse */
 	if (!init_defaults())
 	    sudo_fatalx("%s", U_("unable to initialize sudoers default values"));
-	init_parser(sp->opath, path_sudoers, &parser_conf);
+	init_parser(sp->opath, &parser_conf);
 	sp->errorline = -1;
 
 	/* Parse the sudoers temp file(s) */
@@ -1071,7 +1072,7 @@ check_syntax(const char *path, bool quiet, bool strict, bool check_owner,
 	    goto done;
 	}
     }
-    init_parser(fname, path, &parser_conf);
+    init_parser(fname, &parser_conf);
     sudoers_setlocale(SUDOERS_LOCALE_SUDOERS, &oldlocale);
     if (sudoersparse() && !parse_error) {
 	if (!quiet)