[android] fix the LP32 armv7/i686 android build (#846)

* [android] fix the LP32 armv7/i686 android build

* Update Sources/FoundationEssentials/Android+Extensions.swift

Co-authored-by: Jeremy Schonfeld <[email protected]>

* drop the android Lp32 specific operator &

---------

Co-authored-by: Jeremy Schonfeld <[email protected]>

Author: hyp

Sources/FoundationEssentials/Data/Data+Reading.swift

@@ -325,7 +325,7 @@ internal func readBytesFromFile(path inPath: PathOrURL, reportProgress: Bool, ma
     }
 
     let fileSize = min(Int(clamping: filestat.st_size), maxLength ?? Int.max)
-    let fileType = filestat.st_mode & S_IFMT
+    let fileType = mode_t(filestat.st_mode) & S_IFMT
 #if !NO_FILESYSTEM
     let shouldMap = shouldMapFileDescriptor(fd, path: inPath, options: options)
 #else

Sources/FoundationEssentials/FileManager/FileManager+Basics.swift

@@ -201,7 +201,7 @@ internal struct _FileManagerImpl {
             var statBuf = stat()
             let fd = open(path, 0, 0)
             guard fd >= 0 else { return nil }
-            if fstat(fd, &statBuf) < 0 || statBuf.st_mode & S_IFMT == S_IFDIR {
+            if fstat(fd, &statBuf) < 0 || mode_t(statBuf.st_mode) & S_IFMT == S_IFDIR {
                 close(fd)
                 return nil
             }
@@ -220,7 +220,7 @@ internal struct _FileManagerImpl {
         }
 
         /* check for being same type */
-        if myInfo.st_mode & S_IFMT != otherInfo.st_mode & S_IFMT {
+        if mode_t(myInfo.st_mode) & S_IFMT != mode_t(otherInfo.st_mode) & S_IFMT {
             return false
         }
 

Sources/FoundationEssentials/FileManager/FileManager+Files.swift

@@ -175,7 +175,8 @@ extension stat {
     }
 
     fileprivate var fileAttributes: [FileAttributeKey : Any] {
-        let fileType = st_mode.fileType
+        // On 32 bit Android, st_mode is UInt32.
+        let fileType = mode_t(st_mode).fileType
         var result: [FileAttributeKey : Any] = [
             .size : _writeFileAttributePrimitive(st_size, as: UInt.self),
             .modificationDate : modificationDate,
@@ -393,7 +394,7 @@ extension _FileManagerImpl {
             guard stat(rep, &fileInfo) == 0 else {
                 return (false, false)
             }
-            let isDir = (fileInfo.st_mode & S_IFMT) == S_IFDIR
+            let isDir = (mode_t(fileInfo.st_mode) & S_IFMT) == S_IFDIR
             return (true, isDir)
         }
 #endif
@@ -472,7 +473,7 @@ extension _FileManagerImpl {
             return false
         }
 
-        if ((dirInfo.st_mode & S_ISVTX) != 0) && fileManager.fileExists(atPath: path) {
+        if ((mode_t(dirInfo.st_mode) & S_ISVTX) != 0) && fileManager.fileExists(atPath: path) {
             // its sticky so verify that we own the file
             // otherwise we answer YES on the principle that if
             // we create files we can delete them

Sources/FoundationEssentials/FileManager/FileManager+Utilities.swift

@@ -48,19 +48,19 @@ extension FILETIME {
 #if !os(Windows)
 extension stat {
     var isDirectory: Bool {
-        (self.st_mode & S_IFMT) == S_IFDIR
+        (mode_t(self.st_mode) & S_IFMT) == S_IFDIR
     }
 
     var isRegular: Bool {
-        (self.st_mode & S_IFMT) == S_IFREG
+        (mode_t(self.st_mode) & S_IFMT) == S_IFREG
     }
 
     var isSymbolicLink: Bool {
-        (self.st_mode & S_IFMT) == S_IFLNK
+        (mode_t(self.st_mode) & S_IFMT) == S_IFLNK
     }
 
     var isSpecial: Bool {
-        let type = self.st_mode & S_IFMT
+        let type = mode_t(self.st_mode) & S_IFMT
         return type == S_IFBLK || type == S_IFCHR
     }
 }

Sources/FoundationEssentials/FileManager/FileOperations+Enumeration.swift

@@ -380,7 +380,7 @@ struct _POSIXDirectoryContentsSequence: Sequence {
                         let statDir = directoryPath + "/" + fileName
                         if stat(statDir, &statBuf) == 0 {
                             // #define S_ISDIR(m)      (((m) & S_IFMT) == S_IFDIR)
-                            if (statBuf.st_mode & S_IFMT) == S_IFDIR {
+                            if (mode_t(statBuf.st_mode) & S_IFMT) == S_IFDIR {
                                 isDirectory = true
                             }
                         }

Sources/FoundationEssentials/FileManager/FileOperations.swift

@@ -867,7 +867,7 @@ enum _FileOperations {
 
         #if !os(WASI) // WASI doesn't have fchmod for now
         // Set the file permissions using fchmod() instead of when open()ing to avoid umask() issues
-        let permissions = fileInfo.st_mode & ~S_IFMT
+        let permissions = mode_t(fileInfo.st_mode) & ~S_IFMT
         guard fchmod(dstfd, permissions) == 0 else {
             try delegate.throwIfNecessary(errno, String(cString: srcPtr), String(cString: dstPtr))
             return

Sources/FoundationEssentials/ProcessInfo/ProcessInfo.swift

@@ -198,7 +198,10 @@ final class _ProcessInfo: Sendable {
     }
 
     var fullUserName: String {
-#if canImport(Darwin) || os(Android) || canImport(Glibc)
+#if os(Android) && (arch(i386) || arch(arm))
+        // On LP32 Android, pw_gecos doesn't exist and is presumed to be NULL.
+        return ""
+#elseif canImport(Darwin) || os(Android) || canImport(Glibc)
         let (euid, _) = Platform.getUGIDs()
         if let upwd = getpwuid(euid),
            let fullname = upwd.pointee.pw_gecos {

Sources/FoundationEssentials/String/String+Path.swift

@@ -739,7 +739,7 @@ extension String {
                         if lstat(buffer.baseAddress!, &statBuf) < 0 {
                             return nil
                         }
-                        if statBuf.st_mode & S_IFMT == S_IFLNK {
+                        if mode_t(statBuf.st_mode) & S_IFMT == S_IFLNK {
                             /* Examples:
                              *   fspath == /foo/bar0baz/quux/froboz
                              *   linkx == /tic/tac/toe