.TH coe 3 .SH NAME coe \- set close-on-exec flag for a descriptor .SH SYNTAX .B #include int \fBcoe\fP(\fIfd\fR); int \fIfd\fR; .SH DESCRIPTION .B coe sets the close-on-exec flag for file descriptor .IR fd , returning 0 if it was successful or -1 on error. If .B coe is successful, .I fd will be closed when the process calls .BR execve . .SH "SEE ALSO" execve(2), fcntl(2)