Sane error message when pcap file header is wrong.

This commit is contained in:
Simon Kelley
2018-06-02 14:45:17 +01:00
parent c488b68e75
commit cc5cc8f1e0

View File

@@ -64,9 +64,10 @@ void dump_init(void)
die(_("cannot create %s: %s"), daemon->dump_file, EC_FILE);
}
else if ((daemon->dumpfd = open(daemon->dump_file, O_APPEND | O_RDWR)) == -1 ||
!read_write(daemon->dumpfd, (void *)&header, sizeof(header), 1) ||
header.magic_number != 0xa1b2c3d4)
!read_write(daemon->dumpfd, (void *)&header, sizeof(header), 1))
die(_("cannot access %s: %s"), daemon->dump_file, EC_FILE);
else if (header.magic_number != 0xa1b2c3d4)
die(_("bad header in %s"), daemon->dump_file, EC_FILE);
else
{
/* count existing records */