Fix fread returning bad data.

Bug: 19172514 Change-Id: I05016577858a02aca7d14e75e6ec28abc925037c
2015-02-27 18:22:45 -08:00
parent e6a33cefe4
commit cc9ca1051d
2 changed files with 44 additions and 0 deletions
--- a/libc/stdio/fread.c
+++ b/libc/stdio/fread.c
@@ -102,6 +102,12 @@ fread(void *buf, size_t size, size_t count, FILE *fp)
 		 * avoid copying it through the buffer?
 		 */
 		if (total > (size_t) fp->_bf._size) {
+			/*
+			 * Make sure that fseek doesn't think it can
+			 * reuse the buffer since we are going to read
+			 * directly from the file descriptor.
+			 */
+			fp->_flags |= __SMOD;
 			break;
 		}