[RFC PATCH 6/9] libselinux: ignore internal use of deprecated interfaces

[Christian Göttsche <cgzones@xxxxxxxxxxxxxx>]

Ignore internal use of deprecated interfaces within deprecated
interfaces.

    compute_user.c: In function ‘security_compute_user’:
    compute_user.c:93:9: error: ‘security_compute_user_raw’ is deprecated: Use get_ordered_context_list(3) family [-Werror=deprecated-declarations]
       93 |         ret = security_compute_user_raw(rscon, user, con);
          |         ^~~
    compute_user.c:13:5: note: declared here
       13 | int security_compute_user_raw(const char * scon,
          |     ^~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Christian Göttsche <cgzones@xxxxxxxxxxxxxx>
---
 libselinux/src/compute_user.c     |  2 ++
 libselinux/src/matchpathcon.c     | 11 +++++++++++
 libselinux/src/selinux_internal.h | 14 ++++++++++++++
 3 files changed, 27 insertions(+)

diff --git a/libselinux/src/compute_user.c b/libselinux/src/compute_user.c
index f55f945a..5f54e16a 100644
--- a/libselinux/src/compute_user.c
+++ b/libselinux/src/compute_user.c
@@ -96,7 +96,9 @@ int security_compute_user(const char * scon,
 	if (selinux_trans_to_raw_context(scon, &rscon))
 		return -1;
 
+IGNORE_DEPRECATED_BEGIN
 	ret = security_compute_user_raw(rscon, user, con);
+IGNORE_DEPRECATED_END
 
 	freecon(rscon);
 	if (!ret) {
diff --git a/libselinux/src/matchpathcon.c b/libselinux/src/matchpathcon.c
index bf2da083..f4e34df0 100644
--- a/libselinux/src/matchpathcon.c
+++ b/libselinux/src/matchpathcon.c
@@ -367,7 +367,9 @@ int matchpathcon_init_prefix(const char *path, const char *subset)
 
 int matchpathcon_init(const char *path)
 {
+IGNORE_DEPRECATED_BEGIN
 	return matchpathcon_init_prefix(path, NULL);
+IGNORE_DEPRECATED_END
 }
 
 void matchpathcon_fini(void)
@@ -439,6 +441,8 @@ static int matchpathcon_internal(const char *path, mode_t mode, char ** con)
 {
 	char stackpath[PATH_MAX + 1];
 	char *p = NULL;
+
+IGNORE_DEPRECATED_BEGIN
 	if (!hnd && (matchpathcon_init_prefix(NULL, NULL) < 0))
 			return -1;
 
@@ -450,6 +454,7 @@ static int matchpathcon_internal(const char *path, mode_t mode, char ** con)
 		if (p)
 			path = p;
 	}
+IGNORE_DEPRECATED_END
 
 	return notrans ?
 		selabel_lookup_raw(hnd, con, path, mode) :
@@ -507,8 +512,10 @@ int selinux_file_context_verify(const char *path, mode_t mode)
 	char *p = NULL;
 
 	if (S_ISLNK(mode)) {
+IGNORE_DEPRECATED_BEGIN
 		if (!realpath_not_final(path, stackpath))
 			path = stackpath;
+IGNORE_DEPRECATED_END
 	} else {
 		p = realpath(path, stackpath);
 		if (p)
@@ -523,8 +530,10 @@ int selinux_file_context_verify(const char *path, mode_t mode)
 			return 0;
 	}
 	
+IGNORE_DEPRECATED_BEGIN
 	if (!hnd && (matchpathcon_init_prefix(NULL, NULL) < 0))
 			return -1;
+IGNORE_DEPRECATED_END
 
 	if (selabel_lookup_raw(hnd, &fcontext, path, mode) != 0) {
 		if (errno != ENOENT)
@@ -554,8 +563,10 @@ int selinux_lsetfilecon_default(const char *path)
 	if (lstat(path, &st) != 0)
 		return rc;
 
+IGNORE_DEPRECATED_BEGIN
 	if (!hnd && (matchpathcon_init_prefix(NULL, NULL) < 0))
 			return -1;
+IGNORE_DEPRECATED_END
 
 	/* If there's an error determining the context, or it has none, 
 	   return to allow default context */
diff --git a/libselinux/src/selinux_internal.h b/libselinux/src/selinux_internal.h
index 06f2c038..583dc205 100644
--- a/libselinux/src/selinux_internal.h
+++ b/libselinux/src/selinux_internal.h
@@ -94,6 +94,20 @@ extern int selinux_page_size ;
 
 extern int has_selinux_config ;
 
+#ifdef __GNUC__
+# define IGNORE_DEPRECATED_BEGIN						\
+	_Pragma("GCC diagnostic push")					\
+	_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
+#else
+# define IGNORE_DEPRECATED_BEGIN
+#endif
+
+#ifdef __GNUC__
+# define IGNORE_DEPRECATED_END	_Pragma("GCC diagnostic pop")
+#else
+# define IGNORE_DEPRECATED_END
+#endif
+
 #ifndef HAVE_STRLCPY
 size_t strlcpy(char *dest, const char *src, size_t size);
 #endif
-- 
2.40.1