xuruidong commented on code in PR #12267:
URL: https://github.com/apache/apisix/pull/12267#discussion_r2246820690
##########
apisix/core/utils.lua:
##########
@@ -256,19 +259,17 @@ function _M.gethostname()
return hostname
end
- local hd = io_popen("/bin/hostname")
- local data, err = hd:read("*a")
- if err == nil then
- hostname = data
- if string.has_suffix(hostname, "\r\n") then
- hostname = sub_str(hostname, 1, -3)
- elseif string.has_suffix(hostname, "\n") then
- hostname = sub_str(hostname, 1, -2)
- end
+ local size = 256
+ local buf = ffi_new("unsigned char[?]", size)
+
+ local res = C.gethostname(buf, size)
+ if res == 0 then
+ local data = ffi_string(buf, size)
+ hostname = str_gsub(data, "%z+$", "")
else
hostname = "unknown"
- log.error("failed to read output of \"/bin/hostname\": ", err)
+ log.error("gethostname error:", ffi_string(C.strerror(ffi.errno())))
Review Comment:
done
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