parser - Fix const char warnings

This patch addresses a bunch of the compiler string conversion warnings
that were introduced with the C++-ification patch.

Signed-off-by: Steve Beattie <steve@nxnw.org>
Acked-by: Tyler Hicks <tyhicks@canonical.com>

parser/libapparmor_re/aare_rules.cc

@@ -62,7 +62,7 @@ void aare_delete_ruleset(aare_ruleset_t *rules)
 	aare_reset_matchflags();
 }
 
-int aare_add_rule(aare_ruleset_t *rules, char *rule, int deny,
+int aare_add_rule(aare_ruleset_t *rules, const char *rule, int deny,
 			     uint32_t perms, uint32_t audit, dfaflags_t flags)
 {
 	return aare_add_rule_vec(rules, deny, perms, audit, 1, &rule, flags);
@@ -96,7 +96,7 @@ void aare_reset_matchflags(void)
 
 int aare_add_rule_vec(aare_ruleset_t *rules, int deny,
 				 uint32_t perms, uint32_t audit,
-				 int count, char **rulev, dfaflags_t flags)
+				 int count, const char **rulev, dfaflags_t flags)
 {
 	Node *tree = NULL, *accept;
 	int exact_match;

parser/libapparmor_re/aare_rules.h

@@ -35,10 +35,10 @@ typedef struct aare_ruleset aare_ruleset_t;
 
 aare_ruleset_t *aare_new_ruleset(int reverse);
 void aare_delete_ruleset(aare_ruleset_t *rules);
-int aare_add_rule(aare_ruleset_t *rules, char *rule, int deny, uint32_t perms,
+int aare_add_rule(aare_ruleset_t *rules, const char *rule, int deny, uint32_t perms,
 		  uint32_t audit, dfaflags_t flags);
 int aare_add_rule_vec(aare_ruleset_t *rules, int deny, uint32_t perms,
-		      uint32_t audit, int count, char **rulev,
+		      uint32_t audit, int count, const char **rulev,
 		      dfaflags_t flags);
 void *aare_create_dfa(aare_ruleset_t *rules, size_t *size, dfaflags_t flags);
 void aare_reset_matchflags(void);

parser/parser.h

@@ -230,14 +230,14 @@ extern int names_only;
 extern int option;
 extern int current_lineno;
 extern dfaflags_t dfaflags;
-extern char *progname;
+extern const char *progname;
 extern char *subdomainbase;
 extern char *profilename;
 extern char *profile_ns;
 extern char *current_filename;
 extern FILE *ofile;
 extern int read_implies_exec;
-extern void pwarn(char *fmt, ...) __attribute__((__format__(__printf__, 1, 2)));
+extern void pwarn(const char *fmt, ...) __attribute__((__format__(__printf__, 1, 2)));
 
 /* from parser_main (cannot be used in tst builds) */
 extern int force_complain;
@@ -252,7 +252,7 @@ extern void yyerror(const char *msg, ...);
 extern int yylex(void);
 
 /* parser_include.c */
-extern char *basedir;
+extern const char *basedir;
 
 /* parser_regex.c */
 extern int process_regex(Profile *prof);
@@ -267,7 +267,7 @@ extern int process_policy_ents(Profile *prof);
 
 /* parser_variable.c */
 extern int process_variables(Profile *prof);
-extern struct var_string *split_out_var(char *string);
+extern struct var_string *split_out_var(const char *string);
 extern void free_var_string(struct var_string *var);
 
 /* parser_misc.c */
@@ -279,9 +279,9 @@ extern struct cond_entry *new_cond_entry(char *name, int eq, struct value_list *
 extern void free_cond_entry(struct cond_entry *ent);
 extern void free_cond_list(struct cond_entry *ents);
 extern void print_cond_entry(struct cond_entry *ent);
-extern char *processid(char *string, int len);
+extern char *processid(const char *string, int len);
-extern char *processquoted(char *string, int len);
+extern char *processquoted(const char *string, int len);
-extern char *processunquoted(char *string, int len);
+extern char *processunquoted(const char *string, int len);
 extern int get_keyword_token(const char *keyword);
 extern int name_to_capability(const char *keyword);
 extern int get_rlimit(const char *name);

parser/parser_common.c

@@ -36,7 +36,7 @@ int option = OPTION_ADD;
 dfaflags_t dfaflags = (dfaflags_t)(DFA_CONTROL_TREE_NORMAL | DFA_CONTROL_TREE_SIMPLE | DFA_CONTROL_MINIMIZE | DFA_CONTROL_MINIMIZE_HASH_TRANS);
 
 char *subdomainbase = NULL;
-char *progname = __FILE__;
+const char *progname = __FILE__;
 char *profile_ns = NULL;
 char *profilename = NULL;
 char *current_filename = NULL;
@@ -49,7 +49,7 @@ int read_implies_exec = 1;
 int read_implies_exec = 0;
 #endif
 
-void pwarn(char *fmt, ...)
+void pwarn(const char *fmt, ...)
 {
         va_list arg;
         char *newfmt;

parser/parser_include.c

@@ -73,9 +73,9 @@ static char *stripblanks(char *s);
 /* default base directory is /etc/subdomain.d, it can be overriden
    with the -b option. */
 
-char *basedir;
+const char *basedir;
-static char *default_basedir = "/etc/apparmor.d";
+static const char *default_basedir = "/etc/apparmor.d";
-static char *old_basedir = "/etc/subdomain.d";
+static const char *old_basedir = "/etc/subdomain.d";
 
 
 /* set up basedir so that it can be overridden/used later. */
@@ -130,7 +130,7 @@ void set_base_dir(char *dir)
 }
 
 /* Add a directory to the search path. */
-int add_search_dir(char *dir)
+int add_search_dir(const char *dir)
 {
 	char *t;
 	if (npath >= MAX_PATH) {

parser/parser_include.h

@@ -22,7 +22,7 @@
 
 extern int preprocess_only;
 
-extern int add_search_dir(char *dir);
+extern int add_search_dir(const char *dir);
 extern void init_base_dir(void);
 extern void set_base_dir(char *dir);
 extern void parse_default_paths(void);

parser/parser_interface.c

@@ -327,7 +327,7 @@ inline int sd_write64(sd_serialize *p, u64 b)
 	return 1;
 }
 
-inline int sd_write_name(sd_serialize *p, char *name)
+inline int sd_write_name(sd_serialize *p, const char *name)
 {
 	long size = 0;
 	PDEBUG("Writing name '%s'\n", name);
@@ -362,7 +362,7 @@ inline int sd_write_blob(sd_serialize *p, void *b, int buf_size, char *name)
 
 #define align64(X) (((size_t) (X) + (size_t) 7) & ~((size_t) 7))
 inline int sd_write_aligned_blob(sd_serialize *p, void *b, int buf_size,
-				 char *name)
+				 const char *name)
 {
 	size_t pad;
 	u32 tmp;
@@ -381,7 +381,7 @@ inline int sd_write_aligned_blob(sd_serialize *p, void *b, int buf_size,
 	return 1;
 }
 
-static int sd_write_strn(sd_serialize *p, char *b, int size, char *name)
+static int sd_write_strn(sd_serialize *p, char *b, int size, const char *name)
 {
 	u16 tmp;
 	if (!sd_write_name(p, name))
@@ -396,12 +396,12 @@ static int sd_write_strn(sd_serialize *p, char *b, int size, char *name)
 	return 1;
 }
 
-inline int sd_write_string(sd_serialize *p, char *b, char *name)
+inline int sd_write_string(sd_serialize *p, char *b, const char *name)
 {
 	return sd_write_strn(p, b, strlen(b) + 1, name);
 }
 
-inline int sd_write_struct(sd_serialize *p, char *name)
+inline int sd_write_struct(sd_serialize *p, const char *name)
 {
 	if (!sd_write_name(p, name))
 		return 0;
@@ -417,7 +417,7 @@ inline int sd_write_structend(sd_serialize *p)
 	return 1;
 }
 
-inline int sd_write_array(sd_serialize *p, char *name, int size)
+inline int sd_write_array(sd_serialize *p, const char *name, int size)
 {
 	u16 tmp;
 	if (!sd_write_name(p, name))
@@ -437,7 +437,7 @@ inline int sd_write_arrayend(sd_serialize *p)
 	return 1;
 }
 
-inline int sd_write_list(sd_serialize *p, char *name)
+inline int sd_write_list(sd_serialize *p, const char *name)
 {
 	if (!sd_write_name(p, name))
 		return 0;
@@ -724,7 +724,7 @@ int __sd_serialize_profile(int option, Profile *prof)
 		if (kernel_load) fd = open(filename, O_WRONLY);
 		break;
 	case OPTION_STDOUT:
-		filename = "stdout";
+		filename = strdup("stdout");
 		fd = dup(1);
 		break;
 	case OPTION_OFILE:
@@ -745,8 +745,7 @@ int __sd_serialize_profile(int option, Profile *prof)
 
 	error = 0;
 
-	if (option != OPTION_STDOUT && option != OPTION_OFILE)
+	free(filename);
-		free(filename);
 
 	if (option == OPTION_REMOVE) {
 		char *name, *ns = NULL;

parser/parser_main.c

@@ -134,7 +134,7 @@ static void display_version(void)
 	       parser_copyright);
 }
 
-static void display_usage(char *command)
+static void display_usage(const char *command)
 {
 	display_version();
 	printf("\nUsage: %s [options] [profile]\n\n"
@@ -298,7 +298,7 @@ static int handle_flag_table(optflag_table_t *table, const char *optarg,
 	return 0;
 }
 
-static void display_dump(char *command)
+static void display_dump(const char *command)
 {
 	display_version();
 	printf("\n%s: --dump [Option]\n\n"
@@ -310,7 +310,7 @@ static void display_dump(char *command)
 	print_flag_table(dumpflag_table);
 }
 
-static void display_optimize(char *command)
+static void display_optimize(const char *command)
 {
 	display_version();
 	printf("\n%s: -O [Option]\n\n"
@@ -617,7 +617,7 @@ int find_subdomainfs_mountpoint(void)
 			 "mounted?\nUse --subdomainfs to override.\n"),
 		       MOUNTED_FS);
 		} else {
-			subdomainbase = DEFAULT_APPARMORFS;
+			subdomainbase = strdup(DEFAULT_APPARMORFS);
 		}
 	}
 
@@ -788,7 +788,7 @@ out:
 	return;
 }
 
-static void get_flags_string(char **flags, char *flags_file) {
+static void get_flags_string(char **flags, const char *flags_file) {
 	char *pos;
 	FILE *f = NULL;
 	size_t size;

parser/parser_misc.c

@@ -384,7 +384,7 @@ struct aa_network_entry *network_entry(const char *family, const char *type,
 	return entry;
 };
 
-char *processunquoted(char *string, int len)
+char *processunquoted(const char *string, int len)
 {
 	char *tmp, *s;
 	int l;
@@ -420,7 +420,7 @@ char *processunquoted(char *string, int len)
 	return tmp;
 }
 
-char *processid(char *string, int len)
+char *processid(const char *string, int len)
 {
 	/* lexer should never call this fn if len <= 0 */
 	assert(len > 0);
@@ -433,7 +433,7 @@ char *processid(char *string, int len)
 /* rewrite a quoted string substituting escaped characters for the
  * real thing.  Strip the quotes around the string */
 
-char *processquoted(char *string, int len)
+char *processquoted(const char *string, int len)
 {
 	char *tmp, *s;
 	int l;
@@ -1235,7 +1235,7 @@ int test_str_to_boolean(void)
 int test_processunquoted(void)
 {
 	int rc = 0;
-	char *teststring, *processedstring;
+	const char *teststring, *processedstring;
 
 	teststring = "";
 	MY_TEST(strcmp(teststring, processunquoted(teststring, strlen(teststring))) == 0,
@@ -1263,7 +1263,7 @@ int test_processunquoted(void)
 int test_processquoted(void)
 {
 	int rc = 0;
-	char *teststring, *processedstring;
+	const char *teststring, *processedstring;
 	char *out;
 
 	teststring = "";

parser/parser_regex.c

@@ -494,7 +494,7 @@ static int process_dfa_entry(aare_ruleset_t *dfarules, struct cod_entry *entry)
 		/* add the pair rule */
 		char lbuf[PATH_MAX + 8];
 		int perms = AA_LINK_BITS & entry->mode;
-		char *vec[2];
+		const char *vec[2];
 		int pos;
 		vec[0] = tbuf;
 		if (entry->link_name) {
@@ -512,7 +512,7 @@ static int process_dfa_entry(aare_ruleset_t *dfarules, struct cod_entry *entry)
 			return FALSE;
 	}
 	if (entry->mode & AA_CHANGE_PROFILE) {
-		char *vec[3];
+		const char *vec[3];
 		char lbuf[PATH_MAX + 8];
 		int index = 1;
 
@@ -538,7 +538,7 @@ static int process_dfa_entry(aare_ruleset_t *dfarules, struct cod_entry *entry)
 	if (entry->mode & (AA_USER_PTRACE | AA_OTHER_PTRACE)) {
 		int mode = entry->mode & (AA_USER_PTRACE | AA_OTHER_PTRACE);
 		if (entry->ns) {
-			char *vec[2];
+			const char *vec[2];
 			vec[0] = entry->ns;
 			vec[1] = entry->name;
 			if (!aare_add_rule_vec(dfarules, 0, mode, 0, 2, vec, dfaflags))
@@ -767,7 +767,8 @@ static int process_mnt_entry(aare_ruleset_t *dfarules, struct mnt_entry *entry)
 	char typebuf[PATH_MAX + 3];
 	char flagsbuf[PATH_MAX + 3];
 	char optsbuf[PATH_MAX + 3];
-	char *p, *vec[5];
+	char *p;
+	const char *vec[5];
 	int count = 0;
 	unsigned int flags, inv_flags;
 
@@ -1033,7 +1034,8 @@ static int process_dbus_entry(aare_ruleset_t *dfarules, struct dbus_entry *entry
 	char pathbuf[PATH_MAX + 3];
 	char ifacebuf[PATH_MAX + 3];
 	char memberbuf[PATH_MAX + 3];
-	char *p, *vec[6];
+	char *p;
+	const char *vec[6];
 
 	pattern_t ptype;
 	int pos;

parser/parser_variable.c

@@ -32,9 +32,9 @@
 #include "mount.h"
 #include "dbus.h"
 
-static inline char *get_var_end(char *var)
+static inline const char *get_var_end(const char *var)
 {
-	char *eptr = var;
+	const char *eptr = var;
 
 	while (*eptr) {
 		if (*eptr == '}')
@@ -52,8 +52,8 @@ static inline char *get_var_end(char *var)
 	return NULL; /* no terminating '}' */
 }
 
-static struct var_string *split_string(char *string, char *var_begin,
+static struct var_string *split_string(const char *string, const char *var_begin,
-				       char *var_end)
+				       const char *var_end)
 {
 	struct var_string *n = (struct var_string *) calloc(1, sizeof(struct var_string));
 	unsigned int offset = strlen("@{");
@@ -75,10 +75,10 @@ static struct var_string *split_string(char *string, char *var_begin,
 	return n;
 }
 
-struct var_string *split_out_var(char *string)
+struct var_string *split_out_var(const char *string)
 {
 	struct var_string *n = NULL;
-	char *sptr;
+	const char *sptr;
 	BOOL bEscape = 0;	/* flag to indicate escape */
 
 	if (!string) 		/* shouldn't happen */
@@ -99,7 +99,7 @@ struct var_string *split_out_var(char *string)
 			if (bEscape) {
 				bEscape = FALSE;
 			} else if (*(sptr + 1) == '{') {
-				char *eptr = get_var_end(sptr + 2);
+				const char *eptr = get_var_end(sptr + 2);
 				if (!eptr)
 					break; /* no variable end found */
 				if (eptr == sptr + 2) {
@@ -325,8 +325,8 @@ int process_profile_variables(Profile *prof)
 int test_get_var_end(void)
 {
 	int rc = 0;
-	char *retchar;
+	const char *retchar;
-	char *testchar;
+	const char *testchar;
 
 	testchar = "TRUE}";
 	retchar = get_var_end(testchar);
@@ -356,9 +356,9 @@ int test_split_string(void)
 	int rc = 0;
 	char *tst_string, *var_start, *var_end;
 	struct var_string *ret_struct;
-	char *prefix = "abcdefg";
+	const char *prefix = "abcdefg";
-	char *var = "boogie";
+	const char *var = "boogie";
-	char *suffix = "suffixication";
+	const char *suffix = "suffixication";
 
 	asprintf(&tst_string, "%s@{%s}%s", prefix, var, suffix);
 	var_start = tst_string + strlen(prefix);
@@ -404,11 +404,11 @@ int test_split_out_var(void)
 	int rc = 0;
 	char *tst_string, *tmp;
 	struct var_string *ret_struct;
-	char *prefix = "abcdefg";
+	const char *prefix = "abcdefg";
-	char *var = "boogie";
+	const char *var = "boogie";
-	char *var2 = "V4rW1thNum5";
+	const char *var2 = "V4rW1thNum5";
-	char *var3 = "boogie_board";
+	const char *var3 = "boogie_board";
-	char *suffix = "suffixication";
+	const char *suffix = "suffixication";
 
 	/* simple case */
 	asprintf(&tst_string, "%s@{%s}%s", prefix, var, suffix);