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global main
extern curl_easy_init
extern curl_easy_cleanup
extern curl_easy_setopt
extern curl_easy_perform
section .data
url db "https://httpbin.org/get", 0
section .text
main:
sub rsp, 8
; curl = curl_easy_init()
call curl_easy_init wrt ..plt ; puts cURL handle in rax
test rax, rax ; if rax == 0 (handle is NULL) it failed
jz .failed
mov [rsp], rax
; curl_easy_setopt(curl, CURLOPT_URL, url)
mov rdi, [rsp] ; cURL handle (arg 1)
mov rsi, 10002 ; CURLOPT_URL
lea rdx, [rel url] ; put address of url in rdx
call curl_easy_setopt wrt ..plt ; set option CURLOPT_URL to url
; curl_easy_perform()
mov rdi, [rsp] ; cURL handle
call curl_easy_perform wrt ..plt ; perform cURL
; curl_easy_cleanup()
mov rdi, [rsp] ; RDI = first function argument, set first argument to rsp (cURL handle)
call curl_easy_cleanup wrt ..plt ; call curl_easy_cleanup with argument rdi (cURL handle)
; return 0
mov eax, 0 ; eax for return code
mov qword [rsp], 0 ; zero the cURL pointer just in case because why not
add rsp, 8
ret
.failed:
mov eax, 1 ; eax for return code
add rsp, 8
ret
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