From 8acbf1d3079e9ed6d15c39bd57135b13ecb4076f Mon Sep 17 00:00:00 2001
From: Eric Andersen
Date: Thu, 18 Oct 2001 04:10:22 +0000
Subject: Make mount default to using /proc/filesystems to avoid ever trying to
 mount a nodev filesystem.  -Erik

---
 mount.c            | 33 +++++++++++++++++++++++++++++++--
 util-linux/mount.c | 33 +++++++++++++++++++++++++++++++--
 2 files changed, 62 insertions(+), 4 deletions(-)

diff --git a/mount.c b/mount.c
index 2fc84f2..af57a76 100644
--- a/mount.c
+++ b/mount.c
@@ -240,6 +240,7 @@ mount_one(char *blockDevice, char *directory, char *filesystemType,
 {
 	int status = 0;
 
+#if defined BB_FEATURE_USE_DEVPS_PATCH
 	if (strcmp(filesystemType, "auto") == 0) {
 		static const char *noauto_array[] = { "tmpfs", "shm", "proc", "ramfs", "devpts", "devfs", "usbdevfs", 0 };
 		const char **noauto_fstype;
@@ -264,7 +265,35 @@ mount_one(char *blockDevice, char *directory, char *filesystemType,
 					break;
 			}
 		}
-	} else {
+	} 
+#else
+	if (strcmp(filesystemType, "auto") == 0) {
+		char buf[255];
+		FILE *f = xfopen("/proc/filesystems", "r");
+
+		while (fgets(buf, sizeof(buf), f) != NULL) {
+			filesystemType = buf;
+			if (*filesystemType == '\t') {	// Not a nodev filesystem
+
+				// Add NULL termination to each line
+				while (*filesystemType && *filesystemType != '\n')
+					filesystemType++;
+				*filesystemType = '\0';
+
+				filesystemType = buf;
+				filesystemType++;	// hop past tab
+
+				status = do_mount(blockDevice, directory, filesystemType,
+								  flags | MS_MGC_VAL, string_flags,
+								  useMtab, fakeIt, mtab_opts, mount_all);
+				if (status == TRUE)
+					break;
+			}
+		}
+		fclose(f);
+	}
+#endif
+	else {
 		status = do_mount(blockDevice, directory, filesystemType,
 				flags | MS_MGC_VAL, string_flags, useMtab,
 				fakeIt, mtab_opts, mount_all);
@@ -279,7 +308,7 @@ mount_one(char *blockDevice, char *directory, char *filesystemType,
 	return (TRUE);
 }
 
-void show_mounts()
+void show_mounts(void)
 {
 #if defined BB_FEATURE_USE_DEVPS_PATCH
 	int fd, i, numfilesystems;
diff --git a/util-linux/mount.c b/util-linux/mount.c
index 2fc84f2..af57a76 100644
--- a/util-linux/mount.c
+++ b/util-linux/mount.c
@@ -240,6 +240,7 @@ mount_one(char *blockDevice, char *directory, char *filesystemType,
 {
 	int status = 0;
 
+#if defined BB_FEATURE_USE_DEVPS_PATCH
 	if (strcmp(filesystemType, "auto") == 0) {
 		static const char *noauto_array[] = { "tmpfs", "shm", "proc", "ramfs", "devpts", "devfs", "usbdevfs", 0 };
 		const char **noauto_fstype;
@@ -264,7 +265,35 @@ mount_one(char *blockDevice, char *directory, char *filesystemType,
 					break;
 			}
 		}
-	} else {
+	} 
+#else
+	if (strcmp(filesystemType, "auto") == 0) {
+		char buf[255];
+		FILE *f = xfopen("/proc/filesystems", "r");
+
+		while (fgets(buf, sizeof(buf), f) != NULL) {
+			filesystemType = buf;
+			if (*filesystemType == '\t') {	// Not a nodev filesystem
+
+				// Add NULL termination to each line
+				while (*filesystemType && *filesystemType != '\n')
+					filesystemType++;
+				*filesystemType = '\0';
+
+				filesystemType = buf;
+				filesystemType++;	// hop past tab
+
+				status = do_mount(blockDevice, directory, filesystemType,
+								  flags | MS_MGC_VAL, string_flags,
+								  useMtab, fakeIt, mtab_opts, mount_all);
+				if (status == TRUE)
+					break;
+			}
+		}
+		fclose(f);
+	}
+#endif
+	else {
 		status = do_mount(blockDevice, directory, filesystemType,
 				flags | MS_MGC_VAL, string_flags, useMtab,
 				fakeIt, mtab_opts, mount_all);
@@ -279,7 +308,7 @@ mount_one(char *blockDevice, char *directory, char *filesystemType,
 	return (TRUE);
 }
 
-void show_mounts()
+void show_mounts(void)
 {
 #if defined BB_FEATURE_USE_DEVPS_PATCH
 	int fd, i, numfilesystems;
-- 
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