From: Youngjae Cho <y0.cho@samsung.com>
Date: Mon, 24 Jul 2023 11:46:52 +0000 (+0900)
Subject: libcommon: Add syscommon_is_mounted()
X-Git-Tag: accepted/tizen/unified/20230726.163532^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=78b2e902742b129dc1bc580a75fc89febde186a4;p=platform%2Fcore%2Fsystem%2Flibsyscommon.git

libcommon: Add syscommon_is_mounted()

syscmmon_is_mounted() checks whether the given path exists in /etc/mtab.

Change-Id: I994c4190a069330403e5eb516eb6fef7f5d5404f
Signed-off-by: Youngjae Cho <y0.cho@samsung.com>
---

diff --git a/include/libsyscommon/common.h b/include/libsyscommon/common.h
index 7fd6f66..f6cd108 100644
--- a/include/libsyscommon/common.h
+++ b/include/libsyscommon/common.h
@@ -43,6 +43,13 @@ bool syscommon_is_emulator(void);
  */
 bool syscommon_is_container(void);
 
+/**
+ * @brief Check if the path is mounted
+ *
+ * @return true if the path is mounted, otherwise return false
+ */
+bool syscommon_is_mounted(const char *path);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/libcommon/common.c b/src/libcommon/common.c
index 2e96f29..0a220c7 100644
--- a/src/libcommon/common.c
+++ b/src/libcommon/common.c
@@ -24,6 +24,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <mntent.h>
 #include <system_info.h>
 #include "shared/log.h"
 #include "libsyscommon/common.h"
@@ -72,3 +73,29 @@ bool syscommon_is_container(void)
 
 	return is_container;
 }
+
+bool syscommon_is_mounted(const char *path)
+{
+	bool ret = false;
+	struct mntent *mnt;
+	const char *table = "/etc/mtab";
+	FILE *fp;
+	int len;
+
+	fp = setmntent(table, "r");
+	if (!fp)
+		return ret;
+
+	len = strlen(path) + 1;
+	while (1) {
+		mnt = getmntent(fp);
+		if (mnt == NULL)
+			break;
+		if (!strncmp(mnt->mnt_dir, path, len)) {
+			ret = true;
+			break;
+		}
+	}
+	endmntent(fp);
+	return ret;
+}