Automatically generated by Pod::Man 4.14 (Pod::Simple 3.42)

Standard preamble:
========================================================================
..

..

.. Set up some character translations and predefined strings. \*(-- will
give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
double quote, and \*(R" will give a right double quote. \*(C+ will
give a nicer C++. Capital omega is used to do unbreakable dashes and
therefore won't be available. \*(C` and \*(C' expand to `' in nroff,
nothing in troff, for use with C<>.
.tr \(*W- . ds -- \(*W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} . ds -- \|\(em\| . ds PI \(*p . ds L" `` . ds R" '' . ds C` . ds C' 'br\}
Escape single quotes in literal strings from groff's Unicode transform.

If the F register is >0, we'll generate index entries on stderr for
titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
entries marked with X<> in POD. Of course, you'll have to process the
output yourself in some meaningful fashion.

Avoid warning from groff about undefined register 'F'.
.. .nr rF 0 . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF Fear. Run. Save yourself. No user-serviceable parts.
. \" fudge factors for nroff and troff . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] .\} . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' .\} . \" troff and (daisy-wheel) nroff accents . \" corrections for vroff . \" for low resolution devices (crt and lpr) \{\ . ds : e . ds 8 ss . ds o a . ds d- d\h'-1'\(ga . ds D- D\h'-1'\(hy . ds th \o'bp' . ds Th \o'LP' . ds ae ae . ds Ae AE .\} ========================================================================

Title "SSL_LOAD_CLIENT_CA_FILE 3ossl" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
SSL_load_client_CA_file_ex, SSL_load_client_CA_file, SSL_add_file_cert_subjects_to_stack, SSL_add_dir_cert_subjects_to_stack, SSL_add_store_cert_subjects_to_stack \- load certificate names Header "SYNOPSIS" .Vb 1 #include <openssl/ssl.h> \& STACK_OF(X509_NAME) *SSL_load_client_CA_file_ex(const char *file, OSSL_LIB_CTX *libctx, const char *propq); STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file); \& int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, const char *file); int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, const char *dir); int SSL_add_store_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, const char *store); .Ve Header "DESCRIPTION" \fBSSL_load_client_CA_file_ex() reads certificates from file and returns a \s-1STACK_OF\s0(X509_NAME) with the subject names found. The library context libctx and property query propq are used when fetching algorithms from providers.

\fBSSL_load_client_CA_file() is similar to SSL_load_client_CA_file_ex() but uses \s-1NULL\s0 for the library context libctx and property query propq.

\fBSSL_add_file_cert_subjects_to_stack() reads certificates from file, and adds their subject name to the already existing stack.

\fBSSL_add_dir_cert_subjects_to_stack() reads certificates from every file in the directory dir, and adds their subject name to the already existing stack.

\fBSSL_add_store_cert_subjects_to_stack() loads certificates from the \fIstore \s-1URI,\s0 and adds their subject name to the already existing \fIstack.

Header "NOTES" \fBSSL_load_client_CA_file() reads a file of \s-1PEM\s0 formatted certificates and extracts the X509_NAMES of the certificates found. While the name suggests the specific usage as support function for \fBSSL_CTX_set_client_CA_list\|(3), it is not limited to \s-1CA\s0 certificates. Header "RETURN VALUES" The following return values can occur: Item "NULL" The operation failed, check out the error stack for the reason. Item "Pointer to STACK_OF(X509_NAME)" Pointer to the subject names of the successfully read certificates. Header "EXAMPLES" Load names of CAs from file and use it as a client \s-1CA\s0 list:

.Vb 2 SSL_CTX *ctx; STACK_OF(X509_NAME) *cert_names; \& ... cert_names = SSL_load_client_CA_file("/path/to/CAfile.pem"); if (cert_names != NULL) SSL_CTX_set_client_CA_list(ctx, cert_names); else /* error */ ... .Ve

Header "SEE ALSO" \fBssl\|(7), \fBossl_store\|(7), \fBSSL_CTX_set_client_CA_list\|(3) Header "HISTORY" \fBSSL_load_client_CA_file_ex() and SSL_add_store_cert_subjects_to_stack() were added in OpenSSL 3.0. Header "COPYRIGHT" Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.