Added many syscalls to get better POSIX compliance

1 files changed, 22 insertions, 0 deletions

diff --git a/src/kernel/syscall/actions/sys_read.c b/src/kernel/syscall/actions/sys_read.c
new file mode 100644
index 0000000..a954f56
--- /dev/null
+++ b/src/kernel/syscall/actions/sys_read.c
@@ -0,0 +1,22 @@
+#include <stdint.h>
+#include <kernel/fs/vfs.h>
+#include <kernel/fs/ext2.h>
+#include <kernel/lib/stdlib.h>
+#include <kernel/memory/alloc.h>
+
+uint32_t sys_read(char *path, uint32_t offset, uint32_t count, char *buf)
+{
+	struct fs_node *node = (struct fs_node *)umalloc(sizeof(struct fs_node));
+	strcpy(node->name, path);
+	ext2_root->open(node);
+	if (node->inode != 0) {
+		uint32_t size = ((struct ext2_file *)node->impl)->inode.size;
+		ext2_root->read(node, 0, size, buf);
+		buf[size - 1] = '\0';
+		ext2_root->close(node);
+		return size;
+	} else {
+		ext2_root->close(node);
+		return -1;
+	}
+}
\ No newline at end of file