1---
2c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
3SPDX-License-Identifier: curl
4Title: CURLOPT_PROXY_SSLCERT_BLOB
5Section: 3
6Source: libcurl
7See-also:
8  - CURLOPT_PROXY_SSLCERT (3)
9  - CURLOPT_PROXY_SSLCERTTYPE (3)
10  - CURLOPT_PROXY_SSLKEY (3)
11  - CURLOPT_SSLCERT_BLOB (3)
12---
13
14# NAME
15
16CURLOPT_PROXY_SSLCERT_BLOB - SSL proxy client certificate from memory blob
17
18# SYNOPSIS
19
20~~~c
21#include <curl/curl.h>
22
23CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSLCERT_BLOB,
24                          struct curl_blob *blob);
25~~~
26
27# DESCRIPTION
28
29Pass a pointer to a curl_blob structure, which contains information (pointer
30and size) about a memory block with binary data of the certificate used to
31connect to the HTTPS proxy. The format must be "P12" on Secure Transport or
32Schannel. The format must be "P12" or "PEM" on OpenSSL. The string "P12" or
33"PEM" must be specified with CURLOPT_PROXY_SSLCERTTYPE(3).
34
35If the blob is initialized with the flags member of struct curl_blob set to
36CURL_BLOB_COPY, the application does not have to keep the buffer around after
37setting this.
38
39This option is an alternative to CURLOPT_PROXY_SSLCERT(3) which instead
40expects a filename as input.
41
42# DEFAULT
43
44NULL
45
46# PROTOCOLS
47
48Used with HTTPS proxy
49
50# EXAMPLE
51
52~~~c
53
54extern char *certificateData; /* point to data */
55extern size_t filesize; /* size of the data */
56
57int main(void)
58{
59  CURL *curl = curl_easy_init();
60  if(curl) {
61    CURLcode res;
62    struct curl_blob blob;
63    blob.data = certificateData;
64    blob.len = filesize;
65    blob.flags = CURL_BLOB_COPY;
66    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
67    curl_easy_setopt(curl, CURLOPT_PROXY, "https://proxy");
68    curl_easy_setopt(curl, CURLOPT_PROXY_SSLKEY, "key.pem");
69    curl_easy_setopt(curl, CURLOPT_PROXY_KEYPASSWD, "s3cret");
70    curl_easy_setopt(curl, CURLOPT_PROXY_SSLCERT_BLOB, &blob);
71    res = curl_easy_perform(curl);
72    curl_easy_cleanup(curl);
73  }
74}
75~~~
76
77# AVAILABILITY
78
79Added in 7.71.0. This option is supported by the OpenSSL, Secure Transport and
80Schannel backends.
81
82# RETURN VALUE
83
84Returns CURLE_OK if TLS enabled, CURLE_UNKNOWN_OPTION if not, or
85CURLE_OUT_OF_MEMORY if there was insufficient heap space.
86