fopen file size error when file size is over around 6MB
ckim at etri.re.kr
Tue Sep 8 04:47:35 UTC 2015
Hello, rtems users,
After mounting SD card under /mnt, I can read and write files now. But when the file size is bigger than 5Mbytes, the file size information reads wrong. If it's less than 5Mbytes, read and write is ok.
For example, when the file size is 10MByte,
fpsrc = fopen("/mnt/dir2/sample10m.dat","r");
fseek(fpsrc, 0L, SEEK_END);
size = ftell(fpsrc);
printk("numbytes = %d\n", size);
fseek(fpsrc, 0L, SEEK_SET);
numbytes = 4194304 <=== this is exactly 4MByte (when the file size is 10MB)
Is there something I should set for IMFS configuration?
I see (#define MSDOS_MAX_FILE_SIZE 0xFFFFFFFF) in msdos.h.
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