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Diffstat (limited to 'src/sys/include')
-rw-r--r--src/sys/include/compat/unix/syscall.h8
-rw-r--r--src/sys/include/os/filedesc.h12
-rw-r--r--src/sys/include/sys/syscall.h1
3 files changed, 20 insertions, 1 deletions
diff --git a/src/sys/include/compat/unix/syscall.h b/src/sys/include/compat/unix/syscall.h
index 8b7e7d7..be351e8 100644
--- a/src/sys/include/compat/unix/syscall.h
+++ b/src/sys/include/compat/unix/syscall.h
@@ -63,6 +63,11 @@ scret_t sys_query(struct syscall_args *scargs);
*/
scret_t sys_open(struct syscall_args *scargs);
+/*
+ * Read a file
+ */
+scret_t sys_read(struct syscall_args *scargs);
+
#ifdef _NEED_UNIX_SCTAB
scret_t(*g_unix_sctab[])(struct syscall_args *) = {
[SYS_none] = NULL,
@@ -77,7 +82,8 @@ scret_t(*g_unix_sctab[])(struct syscall_args *) = {
[SYS_getargv] = sys_getargv,
[SYS_reboot] = sys_reboot,
[SYS_waitpid] = sys_waitpid,
- [SYS_dmsio] = sys_dmsio
+ [SYS_dmsio] = sys_dmsio,
+ [SYS_read] = sys_read
};
#endif /* !_NEED_UNIX_SCTAB */
diff --git a/src/sys/include/os/filedesc.h b/src/sys/include/os/filedesc.h
index 0023526..8cdf161 100644
--- a/src/sys/include/os/filedesc.h
+++ b/src/sys/include/os/filedesc.h
@@ -93,4 +93,16 @@ int fd_open(const char *path, mode_t mode);
*/
ssize_t write(int fd, const void *buf, size_t count);
+/*
+ * Read a file descriptor
+ *
+ * @fd: File descriptor to read from
+ * @buf: Buffer to read into
+ * @count: Number of bytes to read
+ *
+ * Returns the number of bytes read on success, otherwise a less
+ * than zero value on error.
+ */
+ssize_t read(int fd, void *buf, size_t count);
+
#endif /* !_OS_FILEDESC_H_ */
diff --git a/src/sys/include/sys/syscall.h b/src/sys/include/sys/syscall.h
index 2ff6087..1138029 100644
--- a/src/sys/include/sys/syscall.h
+++ b/src/sys/include/sys/syscall.h
@@ -56,6 +56,7 @@
#define SYS_reboot 0x0B /* reboot the system */
#define SYS_waitpid 0x0C /* wait for child to exit */
#define SYS_dmsio 0x0D /* DMS I/O */
+#define SYS_read 0x0E /* read a file descriptor */
typedef __ssize_t scret_t;
typedef __ssize_t scarg_t;