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135 .IX Title "SSL_CONF_CTX_set1_prefix 3"
136 .TH SSL_CONF_CTX_set1_prefix 3 "2016-05-03" "1.0.2h" "OpenSSL"
137 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
138 .\" way too many mistakes in technical documents.
139 .if n .ad l
140 .nh
141 .SH "NAME"
142 SSL_CONF_CTX_set1_prefix \- Set configuration context command prefix
143 .SH "SYNOPSIS"
144 .IX Header "SYNOPSIS"
145 .Vb 1
146 \& #include <openssl/ssl.h>
147 \&
148 \& unsigned int SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX *cctx, const char *prefix);
149 .Ve
150 .SH "DESCRIPTION"
151 .IX Header "DESCRIPTION"
152 The function \fISSL_CONF_CTX_set1_prefix()\fR sets the command prefix of \fBcctx\fR
153 to \fBprefix\fR. If \fBprefix\fR is \fB\s-1NULL\s0\fR it is restored to the default value.
154 .SH "NOTES"
155 .IX Header "NOTES"
156 Command prefixes alter the commands recognised by subsequent \fISSL_CTX_cmd()\fR
157 calls. For example for files, if the prefix \*(L"\s-1SSL\*(R"\s0 is set then command names
158 such as \*(L"SSLProtocol\*(R", \*(L"SSLOptions\*(R" etc. are recognised instead of \*(L"Protocol\*(R"
159 and \*(L"Options\*(R". Similarly for command lines if the prefix is \*(L"\-\-ssl\-\*(R" then
160 \&\*(L"\-\-ssl\-no_tls1_2\*(R" is recognised instead of \*(L"\-no_tls1_2\*(R".
161 .PP
162 If the \fB\s-1SSL_CONF_FLAG_CMDLINE\s0\fR flag is set then prefix checks are case
163 sensitive and \*(L"\-\*(R" is the default. In the unlikely even an application
164 explicitly wants to set no prefix it must be explicitly set to "".
165 .PP
166 If the \fB\s-1SSL_CONF_FLAG_FILE\s0\fR flag is set then prefix checks are case
167 insensitive and no prefix is the default.
168 .SH "RETURN VALUES"
169 .IX Header "RETURN VALUES"
170 \&\fISSL_CONF_CTX_set1_prefix()\fR returns 1 for success and 0 for failure.
171 .SH "SEE ALSO"
172 .IX Header "SEE ALSO"
173 \&\fISSL_CONF_CTX_new\fR\|(3),
174 \&\fISSL_CONF_CTX_set_flags\fR\|(3),
175 \&\fISSL_CONF_CTX_set_ssl_ctx\fR\|(3),
176 \&\fISSL_CONF_cmd\fR\|(3),
177 \&\fISSL_CONF_cmd_argv\fR\|(3)
178 .SH "HISTORY"
179 .IX Header "HISTORY"
180 These functions were first added to OpenSSL 1.0.2