| 1 | #include "stdio_impl.h" |
| 2 | #include <sys/uio.h> |
| 3 | |
| 4 | size_t __stdio_write(FILE *f, const unsigned char *buf, size_t len) |
| 5 | { |
| 6 | struct iovec iovs[2] = { |
| 7 | { .iov_base = f->wbase, .iov_len = f->wpos-f->wbase }, |
| 8 | { .iov_base = (void *)buf, .iov_len = len } |
| 9 | }; |
| 10 | struct iovec *iov = iovs; |
| 11 | size_t rem = iov[0].iov_len + iov[1].iov_len; |
| 12 | int iovcnt = 2; |
| 13 | ssize_t cnt; |
| 14 | for (;;) { |
| 1 | Loop condition is true. Entering loop body | |
|
| 6 | | Loop condition is true. Entering loop body | |
|
| 15 | cnt = syscall(SYS_writev, f->fd, iov, iovcnt)__syscall_ret(__syscall3(20,((long) (f->fd)),((long) (iov)
),((long) (iovcnt)))); |
| 16 | if (cnt == rem) { |
| |
| |
| 17 | f->wend = f->buf + f->buf_size; |
| 18 | f->wpos = f->wbase = f->buf; |
| 19 | return len; |
| 20 | } |
| 21 | if (cnt < 0) { |
| |
| |
| |
| |
| 22 | f->wpos = f->wbase = f->wend = 0; |
| 23 | f->flags |= F_ERR32; |
| 24 | return iovcnt == 2 ? 0 : len-iov[0].iov_len; |
| 25 | } |
| 26 | rem -= cnt; |
| 27 | if (cnt > iov[0].iov_len) { |
| |
| |
| 28 | cnt -= iov[0].iov_len; |
| 29 | iov++; iovcnt--; |
| 30 | } |
| 31 | iov[0].iov_base = (char *)iov[0].iov_base + cnt; |
| 11 | | The left operand of '+' is a garbage value |
|
| 32 | iov[0].iov_len -= cnt; |
| 33 | } |
| 34 | } |