diff options
| -rw-r--r-- | environment | 1 | ||||
| -rwxr-xr-x | sh | bin | 1648 -> 1664 bytes | |||
| -rw-r--r-- | sh.asm | 24 |
3 files changed, 17 insertions, 8 deletions
diff --git a/environment b/environment new file mode 100644 index 0000000..8232286 --- /dev/null +++ b/environment @@ -0,0 +1 @@ +PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games Binary files differ@@ -91,20 +91,22 @@ _start: dec r8 ; Reads the PATH variable - mov r10, `\0\0PATH="` + mov r10, `\0\0\0PATH=` _pathfinder: inc r8 ;Check that we've found the PATH variable mov rax, [r8] - shl rax, 16 - cmp rax,r10 + shl rax, 24 + cmp rax, r10 jne _pathfinder ;if we haven't, let's move right one and see if it's there - shr rax, 56 - test al, al ;checks for a null terminator after 'PATH=' + cmp byte [r8], `"` + jne _pathfinder_continue + inc r8 + cmp byte [r8], 0 jz _quit - - add r8, 0x6 + _pathfinder_continue: + add r8, 0x5 mov r10, 0x1 push 0x0 push r8 @@ -116,7 +118,13 @@ _start: cmp al, `:` je _pathender1 cmp al, `"` - jne _pathender + je _pathender_exit + cmp al, `\n` + je _pathender_exit + cmp al, 0 + jz _pathender_exit + jmp _pathender + _pathender_exit: mov byte [r8], 0x0 mov r9, rsp jmp _read_loop |