| [PATCH] fix the empty file writting |
| |
| Upstream-Status: Pending |
| |
| With the feature that checking the disk filled up, the return |
| value of function write_behind was checked and used to detect |
| the disk status. While for empty file, without data being |
| written, this function will return -1 thus the disk filled up |
| error was miss-raised. |
| |
| make write_behind to return 0 if written file is empty, to fix |
| the this bug. |
| |
| Signed-off-by: Roy.Li <rongqing.li@windriver.com> |
| --- |
| common/tftpsubs.c | 5 ++++- |
| 1 file changed, 4 insertions(+), 1 deletion(-) |
| |
| diff --git a/common/tftpsubs.c b/common/tftpsubs.c |
| index b4ea3f2..9f6cafc 100644 |
| --- a/common/tftpsubs.c |
| +++ b/common/tftpsubs.c |
| @@ -198,9 +198,12 @@ int write_behind(FILE * file, int convert) |
| nextone = !nextone; /* incr for next time */ |
| buf = dp->th_data; |
| |
| - if (count <= 0) |
| + if (count < 0) |
| return -1; /* nak logic? */ |
| |
| + if (count == 0) |
| + return 0; |
| + |
| if (convert == 0) |
| return write(fileno(file), buf, count); |
| |
| -- |
| 1.9.1 |
| |