hostfs: mask bit fields of not support

gneworld · masayuki2009 · commit 7f5e6bd3832e · 2023-09-23T05:28:57.000+09:00
Signed-off-by: wanggang26 &lt;wanggang26@xiaomi.com&gt;
diff --git a/arch/arm/src/common/arm_hostfs.c b/arch/arm/src/common/arm_hostfs.c
@@ -76,6 +76,8 @@ static ssize_t host_flen(long fd)
 
 static int host_flags_to_mode(int flags)
 {
+  static const int modemasks = O_RDONLY | O_WRONLY | O_TEXT | O_RDWR |
+                               O_CREAT | O_TRUNC | O_APPEND;
   static const int modeflags[] =
   {
     O_RDONLY | O_TEXT,
@@ -96,7 +98,7 @@ static int host_flags_to_mode(int flags)
   int i;
   for (i = 0; modeflags[i] != 0; i++)
     {
-      if (modeflags[i] == flags)
+      if ((modemasks & flags) == modeflags[i])
         {
           return i;
         }
diff --git a/arch/arm64/src/common/arm64_hostfs.c b/arch/arm64/src/common/arm64_hostfs.c
@@ -76,6 +76,8 @@ static ssize_t host_flen(long fd)
 
 static int host_flags_to_mode(int flags)
 {
+  static const int modemasks = O_RDONLY | O_WRONLY | O_TEXT | O_RDWR |
+                               O_CREAT | O_TRUNC | O_APPEND;
   static const int modeflags[] =
   {
     O_RDONLY | O_TEXT,
@@ -96,7 +98,7 @@ static int host_flags_to_mode(int flags)
   int i;
   for (i = 0; modeflags[i] != 0; i++)
     {
-      if (modeflags[i] == flags)
+      if ((modemasks & flags) == modeflags[i])
         {
           return i;
         }
diff --git a/arch/risc-v/src/common/riscv_hostfs.c b/arch/risc-v/src/common/riscv_hostfs.c
@@ -76,6 +76,8 @@ static ssize_t host_flen(long fd)
 
 static int host_flags_to_mode(int flags)
 {
+  static const int modemasks = O_RDONLY | O_WRONLY | O_TEXT | O_RDWR |
+                               O_CREAT | O_TRUNC | O_APPEND;
   static const int modeflags[] =
   {
     O_RDONLY | O_TEXT,
@@ -96,7 +98,7 @@ static int host_flags_to_mode(int flags)
   int i;
   for (i = 0; modeflags[i] != 0; i++)
     {
-      if (modeflags[i] == flags)
+      if ((modemasks & flags) == modeflags[i])
         {
           return i;
         }

Original file line number	Diff line number	Diff line change
`@@ -76,6 +76,8 @@ static ssize_t host_flen(long fd)`
`76`	`76`
`77`	`77`	`static int host_flags_to_mode(int flags)`
`78`	`78`	`{`
	`79`	`+ static const int modemasks = O_RDONLY \| O_WRONLY \| O_TEXT \| O_RDWR \|`
	`80`	`+ O_CREAT \| O_TRUNC \| O_APPEND;`
`79`	`81`	`static const int modeflags[] =`
`80`	`82`	`{`
`81`	`83`	`O_RDONLY \| O_TEXT,`
`@@ -96,7 +98,7 @@ static int host_flags_to_mode(int flags)`
`96`	`98`	`int i;`
`97`	`99`	`for (i = 0; modeflags[i] != 0; i++)`
`98`	`100`	`{`
`99`		`- if (modeflags[i] == flags)`
	`101`	`+ if ((modemasks & flags) == modeflags[i])`
`100`	`102`	`{`
`101`	`103`	`return i;`
`102`	`104`	`}`