英文:
C.GoString() only returning first character
问题
我正在尝试使用c-shared（.so）文件从Python中调用Go函数。在我的Python代码中，我这样调用函数：
website = "https://draftss.com"
domain = "draftss.com"
website_ip = "23.xxx.xxx.xxx"
website_tech_finder_lib = cdll.LoadLibrary("website_tech_finder/builds/websiteTechFinder.so")
result_json_string: str = website_tech_finder_lib.FetchAllData(website, domain, website_ip)
在Go端，我根据这个Stack Overflow帖子（https://stackoverflow.com/questions/36482970/out-of-memory-panic-while-accessing-a-function-from-a-shared-library）将字符串转换为Go字符串：
func FetchAllData(w *C.char, d *C.char, dIP *C.char) *C.char {
var website string = C.GoString(w)
var domain string = C.GoString(d)
var domainIP string = C.GoString(dIP)
fmt.Println(website)
fmt.Println(domain)
fmt.Println(domainIP)
.... // 其余代码
}
网站域名和域名IP只有我传递的字符串的第一个字符：
fmt.Println(website) // -> h
fmt.Println(domain) // -> d
fmt.Println(domainIP) // -> 2
我对Go还不太熟悉，所以不确定我是否在这里做了一些愚蠢的事情。如何获取我传递的完整字符串？
英文:
I'm trying to call a Go function from Python using c-shared (.so) file. In my python code I'm calling the function like this:
website = "https://draftss.com"
domain = "draftss.com"
website_ip = "23.xxx.xxx.xxx"
website_tech_finder_lib = cdll.LoadLibrary("website_tech_finder/builds/websiteTechFinder.so")
result_json_string: str = website_tech_finder_lib.FetchAllData(website, domain, website_ip)
On Go side I'm converting the strings to Go strings based on this SO post (https://stackoverflow.com/questions/36482970/out-of-memory-panic-while-accessing-a-function-from-a-shared-library):
func FetchAllData(w *C.char, d *C.char, dIP *C.char) *C.char {
var website string = C.GoString(w)
var domain string = C.GoString(d)
var domainIP string = C.GoString(dIP)
fmt.Println(website)
fmt.Println(domain)
fmt.Println(domainIP)
.... // Rest of the code
}
The website domain and domainIP just have the first characters of the strings that I passed:
fmt.Println(website) // -> h
fmt.Println(domain) // -> d
fmt.Println(domainIP) // -> 2
I'm a bit new to Go, so I'm not sure if I'm doing something stupid here. How do I get the full string that I passed?
答案1
得分: 3
你需要将参数转换为UTF8字节。
website = "https://draftss.com".encode('utf-8')
domain = "draftss.com".encode('utf-8')
website_ip = "23.xxx.xxx.xxx".encode('utf-8')
lib = cdll.LoadLibrary("website_tech_finder/builds/websiteTechFinder.so")
result_json_string: str = website_tech_finder_lib.FetchAllData(website, domain, website_ip)
英文:
You need to convert the parameters as UTF8 bytes.
website = "https://draftss.com".encode('utf-8')
domain = "draftss.com".encode('utf-8')
website_ip = "23.xxx.xxx.xxx".encode('utf-8')
lib = cdll.LoadLibrary("website_tech_finder/builds/websiteTechFinder.so")
result_json_string: str = website_tech_finder_lib.FetchAllData(website, domain, website_ip)
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