* exactly 32 bytes must have been read into this packet before this. If the offset
* is wrong, the packet is immediately terminated
*
- * A packet start is signalled by a zero offset.
+ * A packet start is signaled by a zero offset.
*
* Lines starting with #TEXT2PCAP are directives. These allow the user
* to embed instructions into the capture file which allows text2pcap
#include <errno.h>
#include <assert.h>
-#ifdef NEED_GETOPT_H
-# include "getopt.h"
+#ifndef HAVE_GETOPT
+#include "wsutil/wsgetopt.h"
#endif
#ifdef NEED_STRPTIME_H
-# include "strptime.h"
+# include "wsutil/strptime.h"
#endif
#include "text2pcap.h"
+#include "svnversion.h"
+
+#ifdef _WIN32
+#include <wsutil/unicode-utils.h>
+#endif /* _WIN32 */
/*--- Options --------------------------------------------------------------------*/
} hdr_ethernet_t;
static hdr_ethernet_t HDR_ETHERNET = {
- {0x02, 0x02, 0x02, 0x02, 0x02, 0x02},
- {0x01, 0x01, 0x01, 0x01, 0x01, 0x01},
+ {0x0a, 0x02, 0x02, 0x02, 0x02, 0x02},
+ {0x0a, 0x01, 0x01, 0x01, 0x01, 0x01},
0};
typedef struct {
guint32 dest_addr;
} hdr_ip_t;
-static hdr_ip_t HDR_IP = {0x45, 0, 0, 0x3412, 0, 0, 0xff, 0, 0, 0x01010101, 0x02020202};
+static hdr_ip_t HDR_IP = {0x45, 0, 0, 0x3412, 0, 0, 0xff, 0, 0, 0x0101010a, 0x0202020a};
static struct { /* pseudo header for checksum calculation */
guint32 src_addr;
while (sum>>16)
sum = (sum & 0xffff) + (sum >> 16);
- return g_htons(~sum);
+ sum = ~sum;
+ return g_htons(sum);
}
/* The CRC32C code is taken from draft-ietf-tsvwg-sctpcsum-01.txt.
/* Write UDP header */
if (hdr_udp) {
+ guint16 x16;
HDR_UDP.source_port = g_htons(hdr_src_port);
HDR_UDP.dest_port = g_htons(hdr_dest_port);
HDR_UDP.length = g_htons(proto_length);
+ /* Note: g_ntohs()/g_htons() macro arg may be eval'd twice so calc value before invoking macro */
HDR_UDP.checksum = 0;
- u = g_ntohs(in_checksum(&pseudoh, sizeof(pseudoh))) +
- g_ntohs(in_checksum(&HDR_UDP, sizeof(HDR_UDP))) +
- g_ntohs(in_checksum(packet_buf, curr_offset));
- HDR_UDP.checksum = g_htons((u & 0xffff) + (u>>16));
- if (HDR_UDP.checksum == 0) /* differenciate between 'none' and 0 */
+ x16 = in_checksum(&pseudoh, sizeof(pseudoh));
+ u = g_ntohs(x16);
+ x16 = in_checksum(&HDR_UDP, sizeof(HDR_UDP));
+ u += g_ntohs(x16);
+ x16 = in_checksum(packet_buf, curr_offset);
+ u += g_ntohs(x16);
+ x16 = (u & 0xffff) + (u>>16);
+ HDR_UDP.checksum = g_htons(x16);
+ if (HDR_UDP.checksum == 0) /* differentiate between 'none' and 0 */
HDR_UDP.checksum = g_htons(1);
fwrite(&HDR_UDP, sizeof(HDR_UDP), 1, output_file);
/* Write TCP header */
if (hdr_tcp) {
+ guint16 x16;
HDR_TCP.source_port = g_htons(hdr_src_port);
HDR_TCP.dest_port = g_htons(hdr_dest_port);
/* HDR_TCP.seq_num already correct */
HDR_TCP.window = g_htons(0x2000);
+ /* Note: g_ntohs()/g_htons() macro arg may be eval'd twice so calc value before invoking macro */
HDR_TCP.checksum = 0;
- u = g_ntohs(in_checksum(&pseudoh, sizeof(pseudoh))) +
- g_ntohs(in_checksum(&HDR_TCP, sizeof(HDR_TCP))) +
- g_ntohs(in_checksum(packet_buf, curr_offset));
- HDR_TCP.checksum = g_htons((u & 0xffff) + (u>>16));
- if (HDR_TCP.checksum == 0) /* differenciate between 'none' and 0 */
- HDR_TCP.checksum = g_htons(1);
+ x16 = in_checksum(&pseudoh, sizeof(pseudoh));
+ u = g_ntohs(x16);
+ x16 = in_checksum(&HDR_TCP, sizeof(HDR_TCP));
+ u += g_ntohs(x16);
+ x16 = in_checksum(packet_buf, curr_offset);
+ u += g_ntohs(x16);
+ x16 = (u & 0xffff) + (u>>16);
+ HDR_TCP.checksum = g_htons(x16);
+ if (HDR_TCP.checksum == 0) /* differentiate between 'none' and 0 */
+ HDR_TCP.checksum = g_htons(1);
fwrite(&HDR_TCP, sizeof(HDR_TCP), 1, output_file);
}
/* Write SCTP header */
if (hdr_sctp) {
+ guint32 x32;
HDR_SCTP.src_port = g_htons(hdr_sctp_src);
HDR_SCTP.dest_port = g_htons(hdr_sctp_dest);
HDR_SCTP.tag = g_htonl(hdr_sctp_tag);
HDR_SCTP.checksum = crc32c((guint8 *)&HDR_SCTP, sizeof(HDR_SCTP), ~0L);
if (hdr_data_chunk)
HDR_SCTP.checksum = crc32c((guint8 *)&HDR_DATA_CHUNK, sizeof(HDR_DATA_CHUNK), HDR_SCTP.checksum);
- HDR_SCTP.checksum = g_htonl(finalize_crc32c(crc32c(packet_buf, curr_offset, HDR_SCTP.checksum)));
+ /* Note: g_ntohl() macro arg may be eval'd twice so calc value before invoking macro */
+ x32 = finalize_crc32c(crc32c(packet_buf, curr_offset, HDR_SCTP.checksum));
+ HDR_SCTP.checksum = g_htonl(x32);
fwrite(&HDR_SCTP, sizeof(HDR_SCTP), 1, output_file);
}
fprintf(stderr, "Wrote packet of %lu bytes at %u\n", curr_offset, g_ntohl(HDR_TCP.seq_num));
num_packets_written ++;
}
-
- HDR_TCP.seq_num = g_htonl(g_ntohl(HDR_TCP.seq_num) + curr_offset);
+ HDR_TCP.seq_num = g_ntohl(HDR_TCP.seq_num) + curr_offset;
+ HDR_TCP.seq_num = g_htonl(HDR_TCP.seq_num);
packet_start += curr_offset;
curr_offset = 0;
*/
packet_preamble[packet_preamble_len] = '\0';
- /* Ensure preamble has more than two chars before atempting to parse.
+ /* Ensure preamble has more than two chars before attempting to parse.
* This should cover line breaks etc that get counted.
*/
if ( strlen(packet_preamble) > 2 ) {
fprintf(stderr,
"Text2pcap %s"
#ifdef SVNVERSION
- " (" SVNVERSION ")"
+ " (" SVNVERSION " from " SVNPATH ")"
#endif
"\n"
"Generate a capture file from an ASCII hexdump of packets.\n"
" <outfile> specifies output filename (use - for standard output)\n"
"\n"
"Input:\n"
- " -o hex|oct|dec parse offsets as (h)ex, (o)ctal or (d)ecimal; default is hex.\n"
+ " -o hex|oct|dec parse offsets as (h)ex, (o)ctal or (d)ecimal;\n"
+ " default is hex.\n"
" -t <timefmt> treat the text before the packet as a date/time code;\n"
" the specified argument is a format string of the sort\n"
" supported by strptime.\n"
" Example: The time \"10:15:14.5476\" has the format code\n"
" \"%%H:%%M:%%S.\"\n"
- " NOTE: The subsecond component delimiter must be given\n"
- " (.) but no pattern is required; the remaining number\n"
- " is assumed to be fractions of a second.\n"
+ " NOTE: The subsecond component delimiter, '.', must be\n"
+ " given, but no pattern is required; the remaining\n"
+ " number is assumed to be fractions of a second.\n"
" NOTE: Date/time fields from the current date/time are\n"
" used as the default for unspecified fields.\n"
"\n"
" -u <srcp>,<destp> prepend dummy UDP header with specified\n"
" dest and source ports (in DECIMAL).\n"
" Automatically prepends Ethernet & IP headers as well.\n"
- " Example: -u 1000 69 to make the packets look like TFTP/UDP packets.\n"
+ " Example: -u 1000,69 to make the packets look like\n"
+ " TFTP/UDP packets.\n"
" -T <srcp>,<destp> prepend dummy TCP header with specified\n"
" dest and source ports (in DECIMAL).\n"
" Automatically prepends Ethernet & IP headers as well.\n"
int c;
char *p;
+#ifdef _WIN32
+ arg_list_utf_16to8(argc, argv);
+#endif /* _WIN32 */
+
/* Scan CLI parameters */
while ((c = getopt(argc, argv, "dhqe:i:l:m:o:u:s:S:t:T:")) != -1) {
switch(c) {
input_file = ws_fopen(input_filename, "rb");
if (!input_file) {
fprintf(stderr, "Cannot open file [%s] for reading: %s\n",
- input_filename, strerror(errno));
+ input_filename, g_strerror(errno));
exit(-1);
}
} else {
output_file = ws_fopen(output_filename, "wb");
if (!output_file) {
fprintf(stderr, "Cannot open file [%s] for writing: %s\n",
- output_filename, strerror(errno));
+ output_filename, g_strerror(errno));
exit(-1);
}
} else {
ts_sec = time(0); /* initialize to current time */
timecode_default = *localtime(&ts_sec);
+ timecode_default.tm_isdst = -1; /* Unknown for now, depends on time given to the strptime() function */
/* Display summary of our state */
if (!quiet) {
}
}
-int main(int argc, char *argv[])
+int
+main(int argc, char *argv[])
{
parse_options(argc, argv);
git.samba.org / metze / wireshark / wip.git / blobdiff