diff options
Diffstat (limited to 'util.c')
-rw-r--r-- | util.c | 25 |
1 files changed, 25 insertions, 0 deletions
@@ -582,6 +582,31 @@ int do_clone(int (*fn)(void *), char *stack_area, size_t stack_size, int flags, #endif } +/* write_all_buf() - write all of a buffer to an fd + * @fd: File descriptor + * @buf: Pointer to base of buffer + * @len: Length of buffer + * + * Return: 0 on success, -1 on error (with errno set) + * + * #syscalls write + */ +int write_all_buf(int fd, const void *buf, size_t len) +{ + const char *p = buf; + size_t left = len; + + while (left) { + ssize_t rc = write(fd, p, left); + + if (rc < 0) + return -1; + p += rc; + left -= rc; + } + return 0; +} + /* write_remainder() - write the tail of an IO vector to an fd * @fd: File descriptor * @iov: IO vector |