properly handle empty data chunk

sjchristi · sjchristi · commit ee787cea2037 · 2024-06-16T07:48:50.000+08:00
diff --git a/ios/ReactNativeBlobUtilFS.mm b/ios/ReactNativeBlobUtilFS.mm
@@ -679,7 +679,7 @@ + (void) hash:(NSString *)path
         return;
     }
 
-    while ((dataChunk = [fileHandle readDataUpToLength:chunkSize error:&error])) {
+    while ((dataChunk = [fileHandle readDataUpToLength:chunkSize error:&error]) && dataChunk.length > 0) {
         if (error) {
             return reject(@"EREAD", [NSString stringWithFormat:@"Error reading file '%@'", path], error);
             break;

Original file line number	Diff line number	Diff line change
`@@ -679,7 +679,7 @@ + (void) hash:(NSString *)path`
`679`	`679`	`return;`
`680`	`680`	`}`
`681`	`681`
`682`		`- while ((dataChunk = [fileHandle readDataUpToLength:chunkSize error:&error])) {`
	`682`	`+ while ((dataChunk = [fileHandle readDataUpToLength:chunkSize error:&error]) && dataChunk.length > 0) {`
`683`	`683`	`if (error) {`
`684`	`684`	`return reject(@"EREAD", [NSString stringWithFormat:@"Error reading file '%@'", path], error);`
`685`	`685`	`break;`