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.\"
.IX Title "SSL_CONF_CTX_set1_prefix 3"
.TH SSL_CONF_CTX_set1_prefix 3 2019-12-20 1.0.2u OpenSSL
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.nh
.SH NAME
SSL_CONF_CTX_set1_prefix \- Set configuration context command prefix
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/ssl.h>
\&
\& unsigned int SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX *cctx, const char *prefix);
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
The function \fBSSL_CONF_CTX_set1_prefix()\fR sets the command prefix of \fBcctx\fR
to \fBprefix\fR. If \fBprefix\fR is \fBNULL\fR it is restored to the default value.
.SH NOTES
.IX Header "NOTES"
Command prefixes alter the commands recognised by subsequent \fBSSL_CTX_cmd()\fR
calls. For example for files, if the prefix "SSL" is set then command names
such as "SSLProtocol", "SSLOptions" etc. are recognised instead of "Protocol"
and "Options". Similarly for command lines if the prefix is "\-\-ssl\-" then 
"\-\-ssl\-no_tls1_2" is recognised instead of "\-no_tls1_2".
.PP
If the \fBSSL_CONF_FLAG_CMDLINE\fR flag is set then prefix checks are case
sensitive and "\-" is the default. In the unlikely even an application
explicitly wants to set no prefix it must be explicitly set to "".
.PP
If the \fBSSL_CONF_FLAG_FILE\fR flag is set then prefix checks are case
insensitive and no prefix is the default.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBSSL_CONF_CTX_set1_prefix()\fR returns 1 for success and 0 for failure.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBSSL_CONF_CTX_new\fR\|(3),
\&\fBSSL_CONF_CTX_set_flags\fR\|(3),
\&\fBSSL_CONF_CTX_set_ssl_ctx\fR\|(3),
\&\fBSSL_CONF_cmd\fR\|(3),
\&\fBSSL_CONF_cmd_argv\fR\|(3)
.SH HISTORY
.IX Header "HISTORY"
These functions were first added to OpenSSL 1.0.2