diff options
Diffstat (limited to 'ft_read.s')
| -rw-r--r-- | ft_read.s | 18 |
1 files changed, 17 insertions, 1 deletions
@@ -12,6 +12,10 @@ global _ft_read +%define F_GETFD 1 +%define SYSCALL_READ 0x2000003 +%define SYSCALL_FCNTL 0x200005c + ; int ft_read(int, void*, size_t); _ft_read: cmp rdx, 0 @@ -20,7 +24,19 @@ _ft_read: jl FT_READ_ERROR cmp rsi, 0 je FT_READ_ERROR - mov rax, 0x2000003 + + push rdx + push rsi + xor rsi, rsi + mov esi, F_GETFD + mov rax, SYSCALL_FCNTL + syscall + pop rsi + pop rdx + cmp eax, 0 + jne FT_READ_ERROR + + mov rax, SYSCALL_READ syscall ret FT_READ_ERROR: |