Merge branch 'master' of ssh://vps.jankratochvil.net/var/lib/git/nethome

[nethome.git] / src / read1.c

diff --git a/src/read1.c b/src/read1.c
new file mode 100644 (file)
index 0000000..47ba4b7
--- /dev/null
+++ b/src/read1.c
@@ -0,0 +1,22 @@
+#define _GNU_SOURCE 1
+#include <dlfcn.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdlib.h>
+
+ssize_t
+read (int fd, void *buf, size_t count)
+{
+  static ssize_t (*read2) (int fd, void *buf, size_t count) = NULL;
+
+  if (read2 == NULL)
+    {
+      unsetenv ("LD_PRELOAD");
+      read2 = dlsym (RTLD_NEXT, "read");
+    }
+
+  if (count > 0 && isatty (fd) >= 1)
+    count = 1;
+
+  return read2 (fd, buf, count);
+}