X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/da20bc56d6100b5275d6f85c4a25bac1dab4e57e..1a1ac1d6947a7d2f1f50f45c21d8851d0af66575:/cpack.c

diff --git a/cpack.c b/cpack.c
index bae7e632..db3b6dc2 100644
--- a/cpack.c
+++ b/cpack.c
@@ -28,16 +28,18 @@
  */
 
 #ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
 #endif
 
 #include <stdlib.h>
 #include <string.h>
-#include <netdissect-stdinc.h>
+#include "netdissect-stdinc.h"
 
-#include "cpack.h"
+#include "netdissect.h"
 #include "extract.h"
 
+#include "cpack.h"
+
 const uint8_t *
 cpack_next_boundary(const uint8_t *buf, const uint8_t *p, size_t alignment)
 {
@@ -93,63 +95,126 @@ cpack_init(struct cpack_state *cs, const uint8_t *buf, size_t buflen)
 
 /* Unpack a 64-bit unsigned integer. */
 int
-cpack_uint64(struct cpack_state *cs, uint64_t *u)
+cpack_uint64(netdissect_options *ndo, struct cpack_state *cs, uint64_t *u)
 {
 	const uint8_t *next;
 
 	if ((next = cpack_align_and_reserve(cs, sizeof(*u))) == NULL)
 		return -1;
 
-	*u = EXTRACT_LE_U_8(next);
+	*u = GET_LE_U_8(next);
 
 	/* Move pointer past the uint64_t. */
 	cs->c_next = next + sizeof(*u);
 	return 0;
 }
 
+/* Unpack a 64-bit signed integer. */
+int
+cpack_int64(netdissect_options *ndo, struct cpack_state *cs, int64_t *u)
+{
+	const uint8_t *next;
+
+	if ((next = cpack_align_and_reserve(cs, sizeof(*u))) == NULL)
+		return -1;
+
+	*u = GET_LE_S_8(next);
+
+	/* Move pointer past the int64_t. */
+	cs->c_next = next + sizeof(*u);
+	return 0;
+}
+
 /* Unpack a 32-bit unsigned integer. */
 int
-cpack_uint32(struct cpack_state *cs, uint32_t *u)
+cpack_uint32(netdissect_options *ndo, struct cpack_state *cs, uint32_t *u)
 {
 	const uint8_t *next;
 
 	if ((next = cpack_align_and_reserve(cs, sizeof(*u))) == NULL)
 		return -1;
 
-	*u = EXTRACT_LE_U_4(next);
+	*u = GET_LE_U_4(next);
 
 	/* Move pointer past the uint32_t. */
 	cs->c_next = next + sizeof(*u);
 	return 0;
 }
 
+/* Unpack a 32-bit signed integer. */
+int
+cpack_int32(netdissect_options *ndo, struct cpack_state *cs, int32_t *u)
+{
+	const uint8_t *next;
+
+	if ((next = cpack_align_and_reserve(cs, sizeof(*u))) == NULL)
+		return -1;
+
+	*u = GET_LE_S_4(next);
+
+	/* Move pointer past the int32_t. */
+	cs->c_next = next + sizeof(*u);
+	return 0;
+}
+
 /* Unpack a 16-bit unsigned integer. */
 int
-cpack_uint16(struct cpack_state *cs, uint16_t *u)
+cpack_uint16(netdissect_options *ndo, struct cpack_state *cs, uint16_t *u)
 {
 	const uint8_t *next;
 
 	if ((next = cpack_align_and_reserve(cs, sizeof(*u))) == NULL)
 		return -1;
 
-	*u = EXTRACT_LE_U_2(next);
+	*u = GET_LE_U_2(next);
 
 	/* Move pointer past the uint16_t. */
 	cs->c_next = next + sizeof(*u);
 	return 0;
 }
 
+/* Unpack a 16-bit signed integer. */
+int
+cpack_int16(netdissect_options *ndo, struct cpack_state *cs, int16_t *u)
+{
+	const uint8_t *next;
+
+	if ((next = cpack_align_and_reserve(cs, sizeof(*u))) == NULL)
+		return -1;
+
+	*u = GET_LE_S_2(next);
+
+	/* Move pointer past the int16_t. */
+	cs->c_next = next + sizeof(*u);
+	return 0;
+}
+
 /* Unpack an 8-bit unsigned integer. */
 int
-cpack_uint8(struct cpack_state *cs, uint8_t *u)
+cpack_uint8(netdissect_options *ndo, struct cpack_state *cs, uint8_t *u)
 {
 	/* No space left? */
 	if ((size_t)(cs->c_next - cs->c_buf) >= cs->c_len)
 		return -1;
 
-	*u = *cs->c_next;
+	*u = GET_U_1(cs->c_next);
 
 	/* Move pointer past the uint8_t. */
 	cs->c_next++;
 	return 0;
 }
+
+/* Unpack an 8-bit signed integer. */
+int
+cpack_int8(netdissect_options *ndo, struct cpack_state *cs, int8_t *u)
+{
+	/* No space left? */
+	if ((size_t)(cs->c_next - cs->c_buf) >= cs->c_len)
+		return -1;
+
+	*u = GET_S_1(cs->c_next);
+
+	/* Move pointer past the int8_t. */
+	cs->c_next++;
+	return 0;
+}