CURLINFO\_PROXY\_SSL\_VERIFYRESULT(3) Library Functions Manual CURLINFO\_PROXY\_SSL\_VERIFYRESULT(3)

# [NAME](#NAME)

CURLINFO\_PROXY\_SSL\_VERIFYRESULT - result of proxy certificate verification

# [SYNOPSIS](#SYNOPSIS)

```
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PROXY_SSL_VERIFYRESULT,


                           long *result);
```

# [DESCRIPTION](#DESCRIPTION)

Pass a pointer to a long to receive the result of the certificate verification that was requested (using the [*CURLOPT\_PROXY\_SSL\_VERIFYPEER(3)*](/man/os/curl/CURLOPT_PROXY_SSL_VERIFYPEER.3) option. This is only used for HTTPS proxies.

0 is a positive result. Non-zero is an error.

# [PROTOCOLS](#PROTOCOLS)

This functionality affects all TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc. only

This option works only with the following TLS backends: GnuTLS and OpenSSL

# [EXAMPLE](#EXAMPLE)

```
int main(void)
{


  CURL *curl = curl_easy_init();


  if(curl) {


    CURLcode result;


    long verifyresult;


    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");


    curl_easy_setopt(curl, CURLOPT_PROXY, "https://proxy.example:443");


    result = curl_easy_perform(curl);


    if(result != CURLE_OK) {


      printf("error: %s\n", curl_easy_strerror(result));


      curl_easy_cleanup(curl);


      return 1;


    }


    result = curl_easy_getinfo(curl, CURLINFO_PROXY_SSL_VERIFYRESULT,


                               &verifyresult);


    if(result == CURLE_OK) {


      printf("The peer verification said %s\n",


             (verifyresult ? "bad" : "fine"));


    }


    curl_easy_cleanup(curl);


  }
}
```

# [AVAILABILITY](#AVAILABILITY)

Added in curl 7.52.0

# [RETURN VALUE](#RETURN_VALUE)

[*curl\_easy\_getinfo(3)*](/man/os/curl/curl_easy_getinfo.3) returns a CURLcode indicating success or error.

CURLE\_OK (0) means everything was OK, non-zero means an error occurred, see [*libcurl-errors(3)*](/man/os/curl/libcurl-errors.3).

# [SEE ALSO](#SEE_ALSO)

[**CURLINFO\_SSL\_VERIFYRESULT**(3)](/man/os/curl/CURLINFO_SSL_VERIFYRESULT.3), [**curl\_easy\_getinfo**(3)](/man/os/curl/curl_easy_getinfo.3), [**curl\_easy\_setopt**(3)](/man/os/curl/curl_easy_setopt.3)

2026-10-19 libcurl

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Document: CURLINFO_PROXY_SSL_VERIFYRESULT(3) from curl 8.23.0-r1 (Chainguard OS)
Source: https://github.com/curl/curl.git