1 files changed, 95 insertions, 0 deletions
diff --git a/libpe/pe_init.c b/libpe/pe_init.c
new file mode 100644
index 000000000000..4e2f22a260d2
--- /dev/null
+++ b/libpe/pe_init.c
@@ -0,0 +1,95 @@
+/*-
+ * Copyright (c) 2015 Kai Wang
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/queue.h>
+#include <errno.h>
+#include <stdlib.h>
+
+#include "_libpe.h"
+
+ELFTC_VCSID("$Id: pe_init.c 3312 2016-01-10 09:23:51Z kaiwang27 $");
+
+PE *
+pe_init(int fd, PE_Cmd c, PE_Object o)
+{
+	PE *pe;
+
+	if ((pe = calloc(1, sizeof(*pe))) == NULL) {
+		errno = ENOMEM;
+		return (NULL);
+	}
+	pe->pe_fd = fd;
+	pe->pe_cmd = c;
+	pe->pe_obj = o;
+	STAILQ_INIT(&pe->pe_scn);
+
+	switch (c) {
+	case PE_C_READ:
+	case PE_C_RDWR:
+		if (libpe_open_object(pe) < 0)
+			goto init_fail;
+		break;
+
+	case PE_C_WRITE:
+		if (o < PE_O_PE32 || o > PE_O_COFF) {
+			errno = EINVAL;
+			goto init_fail;
+		}
+		break;
+
+	default:
+		errno = EINVAL;
+		goto init_fail;
+	}
+
+	return (pe);
+
+init_fail:
+	pe_finish(pe);
+	return (NULL);
+}
+
+void
+pe_finish(PE *pe)
+{
+
+	if (pe == NULL)
+		return;
+
+	libpe_release_object(pe);
+}
+
+PE_Object
+pe_object(PE *pe)
+{
+
+	if (pe == NULL) {
+		errno = EINVAL;
+		return (PE_O_UNKNOWN);
+	}
+
+	return (pe->pe_obj);
+}