1 files changed, 30 insertions, 0 deletions
diff --git a/src/seek.c b/src/seek.c
new file mode 100644
index 0000000..ac761a9
--- /dev/null
+++ b/src/seek.c
@@ -0,0 +1,30 @@
+#include <sys/types.h>
+#include "seek.h"
+
+/**
+	@file seek.c
+	@author djb
+	@source qmail
+	@brief seek in an open file descritor
+*/
+
+off_t lseek(int fd,off_t offset,int whence);
+int ftruncate(int fd, off_t length);
+
+#define CUR 1 /* sigh */
+
+seek_pos seek_cur(int fd)
+{ return lseek(fd,(off_t) 0,CUR); }
+
+#define END 2 /* sigh */
+
+int seek_end(int fd)
+{ if (lseek(fd,(off_t) 0,END) == -1) return -1; return 0; }
+
+#define SET 0 /* sigh */
+
+int seek_set(int fd,seek_pos pos)
+{ if (lseek(fd,(off_t) pos,SET) == -1) return -1; return 0; }
+
+int seek_trunc(int fd,seek_pos pos)
+{ return ftruncate(fd,(off_t) pos); }