commit bash-20061116 snapshot

CWRU/devstdin.c

@@ -0,0 +1,38 @@
+#include <unistd.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#if defined (S_IFDIR) && !defined (S_ISDIR)
+#define S_ISDIR(m)      (((m)&S_IFMT) == S_IFDIR)       /* directory */
+#endif
+
+main(c, v)
+int	c;
+char	**v;
+{
+	struct stat 	sb;
+	int	r, fd;
+	char	fbuf[32];
+
+	r = stat("/dev/fd", &sb);
+	/* test -d /dev/fd */
+	if (r == -1 || S_ISDIR (sb.st_mode) == 0)
+		exit (1);
+	/* test -r /dev/stdin < /dev/null */
+	fd = open("/dev/null", O_RDONLY, 0666);
+	if (fd == -1)
+		exit (2);
+	if (dup2(fd, 0) == -1)
+		exit (1);
+	r = access("/dev/stdin", R_OK);
+	if (r == -1)
+		exit (1);
+	exit (0);
+}
+
+