They are insecure, and replaced by rcmd(3).
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
.nf
.B #include <netdb.h>
.PP
+.B [[deprecated]]
.BI "int rexec(char **restrict " ahost ", int " inport ,
.BI " const char *restrict " user ", const char *restrict " passwd ,
.BI " const char *restrict " cmd ", int *restrict " fd2p );
+.PP
+.B [[deprecated]]
.BI "int rexec_af(char **restrict " ahost ", int " inport ,
.BI " const char *restrict " user ", const char *restrict " passwd ,
.BI " const char *restrict " cmd ", int *restrict " fd2p ,