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Diffstat (limited to 'src/libstddjb/ipc_accept.c')
-rw-r--r--src/libstddjb/ipc_accept.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/src/libstddjb/ipc_accept.c b/src/libstddjb/ipc_accept.c
new file mode 100644
index 0000000..dc3eae7
--- /dev/null
+++ b/src/libstddjb/ipc_accept.c
@@ -0,0 +1,48 @@
+/* ISC license. */
+
+#include <skalibs/sysdeps.h>
+#include <skalibs/nonposix.h>
+#include <errno.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/djbunix.h>
+#include <skalibs/webipc.h>
+
+int ipc_accept_internal (int s, char *p, unsigned int l, int *trunc, unsigned int options)
+{
+ struct sockaddr_un sa ;
+ socklen_t dummy = sizeof sa ;
+ register int fd ;
+ byte_zero((char*)&sa, (unsigned int)dummy) ;
+ 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 == -1) && (errno == EINTR)) ;
+ if (fd == -1) 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
+
+ if (p)
+ {
+ dummy = byte_chr(sa.sun_path, dummy, 0) ;
+ *trunc = 1 ;
+ if (!l) return fd ;
+ if (l < (dummy + 1)) dummy = l - 1 ;
+ else *trunc = 0 ;
+ byte_copy(p, dummy, sa.sun_path) ;
+ p[dummy] = 0 ;
+ }
+ return fd ;
+}