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Diffstat (limited to 'src/libstddjb/socket_accept4.c')
-rw-r--r--src/libstddjb/socket_accept4.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/src/libstddjb/socket_accept4.c b/src/libstddjb/socket_accept4.c
new file mode 100644
index 0000000..e504375
--- /dev/null
+++ b/src/libstddjb/socket_accept4.c
@@ -0,0 +1,39 @@
+/* ISC license. */
+
+#include <skalibs/sysdeps.h>
+#include <skalibs/nonposix.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <errno.h>
+#include <skalibs/uint16.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/djbunix.h>
+#include <skalibs/socket.h>
+
+int socket_accept4_internal (int s, char *ip, uint16 *port, unsigned int options)
+{
+ struct sockaddr_in sa ;
+ socklen_t dummy = sizeof sa ;
+ register int fd ;
+ do
+#ifdef SKALIBS_HASACCEPT4
+ fd = accept4(s, (struct sockaddr *)&sa, &dummy, ((options & DJBUNIX_FLAG_NB) ? SOCK_NONBLOCK : 0) | ((options & DJBUNIX_FLAG_COE) ? SOCK_CLOEXEC : 0)) ;
+#else
+ fd = accept(s, (struct sockaddr *)&sa, &dummy) ;
+#endif
+ while ((fd < 0) && (errno == EINTR)) ;
+ if (fd < 0) return -1 ;
+#ifndef SKALIBS_HASACCEPT4
+ if ((((options & DJBUNIX_FLAG_NB) ? ndelay_on(fd) : ndelay_off(fd)) < 0)
+ || (((options & DJBUNIX_FLAG_COE) ? coe(fd) : uncoe(fd)) < 0))
+ {
+ register int e = errno ;
+ fd_close(fd) ;
+ errno = e ;
+ return -1 ;
+ }
+#endif
+ byte_copy(ip, 4, (char *)&sa.sin_addr.s_addr) ;
+ uint16_unpack_big((char *)&sa.sin_port, port) ;
+ return fd ;
+}