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Copy pathtest.s
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176 lines (140 loc) · 3.05 KB
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.data
path: .space 10000
fd_dir: .space 4
f_readS: .asciz "%s"
f_printS: .asciz "%s\n"
f_printD: .asciz "%d\n"
f_fd: .asciz "fd: %d\n"
f_sb: .asciz "size B: %d\n"
f_skb: .asciz "size KB: %d\n"
fileaddr: .space 4
fd: .space 4
size: .space 4
s_copy: .space 10000
s_dot: .asciz "."
s_dotdot: .asciz ".."
s_slash: .asciz "/"
f_wrongdot: .asciz "This is a dot.\n"
f_wrongdotdot: .asciz "This is a dotdot.\n"
.text
slashAdd:
push %ebp
mov %esp, %ebp
push %eax
push %ecx
push %edx
mov 8(%ebp), %eax # fileaddr
mov $s_slash, %edx
et_slashAdd_while:
mov (%eax), %cl
test %cl, %cl
je et_slashAdd_while_exit
inc %eax
jmp et_slashAdd_while
et_slashAdd_while_exit:
dec %eax
mov (%eax), %cl
mov (%edx), %ch
cmp %cl, %ch
je et_slashAdd_if_exit
et_slashAdd_if:
push $s_slash
push %eax
call strcat
add $8, %esp
et_slashAdd_if_exit:
pop %edx
pop %ecx
pop %eax
pop %ebp
ret
.global main
main:
push $path
push $f_readS
call scanf
add $8, %esp
push $path
call opendir
movl %eax, fd_dir
add $4, %esp
# adauga slash la finalul lui path daca nu exista
push $path
call slashAdd
add $4, %esp
push $path
push $s_copy
call strcpy
add $8, %esp
et_CONCRETE_while_not_zero:
push fd_dir
call readdir
add $4, %esp
cmp $0, %eax
je et_CONCRETE_while_not_zero_exit
push %eax
push $s_copy
push $path
call strcpy
add $8, %esp
pop %eax
movl %eax, fileaddr
addl $11, fileaddr # offset pt a prelua numele fisierului
push fileaddr
push $s_dot
call strcmp
add $8, %esp
# daca e .
cmp $-1, %eax
jne et_CONCRETE_while_not_zero
push fileaddr
push $s_dotdot
call strcmp
add $8, %esp
# daca e ..
cmp $-1, %eax
jne et_CONCRETE_while_not_zero
push fileaddr
push $path
call strcat
add $8, %esp
push $path
push $f_printS
call printf
add $8, %esp
# open file
mov $5, %eax
mov $path, %ebx
xor %ecx, %ecx
xor %edx, %edx
int $0x80
mov %eax, fd
# lseek pt filesize
mov $19, %eax
mov fd, %ebx
mov $0, %ecx
mov $2, %edx
int $0x80
shr $10, %eax
movl %eax, size # marimea in KB
mov fd, %eax
#fd = (fds % 255) + 1
xor %edx, %edx
movl $255, %ecx
div %ecx
mov %edx, fd
addl $1, fd
push fd
push $f_printD
call printf
add $8, %esp
push size
push $f_printD
call printf
add $8, %esp
jmp et_CONCRETE_while_not_zero
et_CONCRETE_while_not_zero_exit:
et_exit:
mov $1, %eax
xor %ebx, %ebx
int $0x80