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125 | .\" |
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126 | .IX Title "REMCTL_COMMAND 3" |
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127 | .TH REMCTL_COMMAND 3 "2009-05-22" "2.14" "remctl Library Reference" |
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128 | .\" For nroff, turn off justification. Always turn off hyphenation; it makes |
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129 | .\" way too many mistakes in technical documents. |
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130 | .if n .ad l |
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131 | .nh |
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132 | .SH "NAME" |
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133 | remctl_command, remctl_commandv \- Send a command to a remctl server |
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134 | .SH "SYNOPSIS" |
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135 | .IX Header "SYNOPSIS" |
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136 | #include <remctl.h> |
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137 | .PP |
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138 | int \fBremctl_command\fR(struct remctl *\fIr\fR, const char **\fIcommand\fR); |
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139 | .PP |
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140 | #include <sys/uio.h> |
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141 | .PP |
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142 | int \fBremctl_commandv\fR(struct remctl *\fIr\fR, const struct iovec *\fIiov\fR, |
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143 | size_t \fIcount\fR); |
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144 | .SH "DESCRIPTION" |
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145 | .IX Header "DESCRIPTION" |
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146 | \&\fIremctl_command()\fR and \fIremctl_commandv()\fR send a command to a remote remctl |
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147 | server. The remctl client object \fIr\fR, created with \fIremctl_new()\fR, should |
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148 | have previously been passed to \fIremctl_open()\fR to open a connection to the |
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149 | server. |
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150 | .PP |
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151 | \&\fIremctl_command()\fR takes the command as a NULL-terminated array of |
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152 | NUL-terminated strings (the same layout as an argv array). This function |
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153 | is most convenient when passing simple text commands. |
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154 | .PP |
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155 | \&\fIremctl_commandv()\fR takes the command as an array of iovec structs of length |
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156 | \&\fIcount\fR. This function is most convenient when passing arbitrary data to |
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157 | the command, since the iovec struct takes a pointer and a length for each |
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158 | chunk of data. See \fIwritev\fR\|(2) for the layout of the iovec struct. |
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159 | .PP |
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160 | After calling one of these functions, call \fIremctl_output()\fR to get the |
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161 | results of the command. |
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162 | .SH "RETURN VALUE" |
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163 | .IX Header "RETURN VALUE" |
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164 | \&\fIremctl_command()\fR and \fIremctl_commandv()\fR return true on success and false on |
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165 | failure. On failure, the caller should call \fIremctl_error()\fR to retrieve |
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166 | the error message. |
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167 | .SH "SEE ALSO" |
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168 | .IX Header "SEE ALSO" |
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169 | \&\fIremctl_new\fR\|(3), \fIremctl_open\fR\|(3), \fIremctl_output\fR\|(3), \fIremctl_error\fR\|(3) |
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170 | .PP |
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171 | The current version of the remctl library and complete details of the |
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172 | remctl protocol are available from its web page at |
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173 | <http://www.eyrie.org/~eagle/software/remctl/>. |
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174 | .SH "AUTHOR" |
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175 | .IX Header "AUTHOR" |
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176 | Russ Allbery <rra@stanford.edu> |
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