X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fpcap.c;h=afd41fa814c08d4f6752563e7decd8db8b7c3b65;hb=4f1046117c54e60b8ef6b7b21c23d3a4bf2e61fb;hp=967bb5c34b8cf9ceb77afd60be504457c6dbe43e;hpb=58fda1dab104041fc693032475ec4662c1a52849;p=openvswitch

diff --git a/lib/pcap.c b/lib/pcap.c
index 967bb5c3..afd41fa8 100644
--- a/lib/pcap.c
+++ b/lib/pcap.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009 Nicira Networks.
+ * Copyright (c) 2009, 2010 Nicira Networks.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,10 +22,10 @@
 #include <string.h>
 #include "compiler.h"
 #include "ofpbuf.h"
-
-#define THIS_MODULE VLM_pcap
 #include "vlog.h"
 
+VLOG_DEFINE_THIS_MODULE(pcap);
+
 struct pcap_hdr {
     uint32_t magic_number;   /* magic number */
     uint16_t version_major;  /* major version number */
@@ -34,14 +34,16 @@ struct pcap_hdr {
     uint32_t sigfigs;        /* accuracy of timestamps */
     uint32_t snaplen;        /* max length of captured packets */
     uint32_t network;        /* data link type */
-} PACKED;
+};
+BUILD_ASSERT_DECL(sizeof(struct pcap_hdr) == 24);
 
 struct pcaprec_hdr {
     uint32_t ts_sec;         /* timestamp seconds */
     uint32_t ts_usec;        /* timestamp microseconds */
     uint32_t incl_len;       /* number of octets of packet saved in file */
     uint32_t orig_len;       /* actual length of packet */
-} PACKED;
+};
+BUILD_ASSERT_DECL(sizeof(struct pcaprec_hdr) == 16);
 
 FILE *
 pcap_open(const char *file_name, const char *mode)
@@ -74,8 +76,7 @@ pcap_read_header(FILE *file)
     struct pcap_hdr ph;
     if (fread(&ph, sizeof ph, 1, file) != 1) {
         int error = ferror(file) ? errno : EOF;
-        VLOG_WARN("failed to read pcap header: %s",
-                  error > 0 ? strerror(error) : "end of file");
+        VLOG_WARN("failed to read pcap header: %s", ovs_retval_to_string(error));
         return error;
     }
     if (ph.magic_number != 0xa1b2c3d4 && ph.magic_number != 0xd4c3b2a1) {
@@ -116,7 +117,7 @@ pcap_read(FILE *file, struct ofpbuf **bufp)
     if (fread(&prh, sizeof prh, 1, file) != 1) {
         int error = ferror(file) ? errno : EOF;
         VLOG_WARN("failed to read pcap record header: %s",
-                  error > 0 ? strerror(error) : "end of file");
+                  ovs_retval_to_string(error));
         return error;
     }
 
@@ -142,7 +143,7 @@ pcap_read(FILE *file, struct ofpbuf **bufp)
     if (fread(data, len, 1, file) != 1) {
         int error = ferror(file) ? errno : EOF;
         VLOG_WARN("failed to read pcap packet: %s",
-                  error > 0 ? strerror(error) : "end of file");
+                  ovs_retval_to_string(error));
         ofpbuf_delete(buf);
         return error;
     }