libc: unistd: Add write() system call wrapper

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/lib/libc/include/unistd.h b/src/lib/libc/include/unistd.h
index 9cf48bc..609fa0d 100644
--- a/src/lib/libc/include/unistd.h
+++ b/src/lib/libc/include/unistd.h
@@ -30,9 +30,20 @@
 #ifndef _UNISTD_H 1
 #define _UNISTD_H 1
 
+#include <stddef.h>
+
 /* Standard stream file numbers */
 #define STDIN_FILENO    0
 #define STDOUT_FILENO   1
 #define STDERR_FILENO   2
 
+/*
+ * POSIX write system call
+ *
+ * @fd: File descriptor to write at
+ * @buf: Buffer to write
+ * @count: Number of bytes within the buffer to write
+ */
+ssize_t write(int fd, const void *buf, size_t count);
+
 #endif  /* _UNISTD_H */