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authorDario Lombardo <lomato@gmail.com>2015-11-10 15:41:52 +0100
committerMichael Mann <mmann78@netscape.net>2015-11-11 13:22:05 +0000
commitf1ff6d62c4fc1db0f5b98efd537f3ec518b0d4b8 (patch)
treec1bb7ecf4c3aa5ea444752b71cc6508bc145d733 /randpkt.c
parent328fbc001e89d2daaca343c378744e75e0a107fb (diff)
randpkt: split into a core and an app.
This will allow other apps to use the random packet generation features. Change-Id: I7e9af58cbe39da4908242b5fbb292f473e03b4f2 Reviewed-on: https://code.wireshark.org/review/11579 Petri-Dish: Michael Mann <mmann78@netscape.net> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Michael Mann <mmann78@netscape.net>
Diffstat (limited to 'randpkt.c')
-rw-r--r--randpkt.c837
1 files changed, 33 insertions, 804 deletions
diff --git a/randpkt.c b/randpkt.c
index f61aa78..e6de985 100644
--- a/randpkt.c
+++ b/randpkt.c
@@ -21,7 +21,14 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#include <config.h>
+#include "randpkt-core.h"
+
+#include <glib.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <wsutil/ws_diag_control.h>
+#include <wsutil/unicode-utils.h>
+#include <wsutil/file_util.h>
#ifdef HAVE_GETOPT_H
#include <getopt.h>
@@ -31,771 +38,42 @@
#include "wsutil/wsgetopt.h"
#endif
-#include <time.h>
-#include <errno.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <glib.h>
-#include "wiretap/wtap.h"
-#include "wsutil/file_util.h"
-#include <wsutil/ws_diag_control.h>
-
-#ifdef _WIN32
-#include <wsutil/unicode-utils.h>
-#endif /* _WIN32 */
-
-#define array_length(x) (sizeof x / sizeof x[0])
-
-/* Types of produceable packets */
-enum {
- PKT_ARP,
- PKT_BGP,
- PKT_BVLC,
- PKT_DNS,
- PKT_ETHERNET,
- PKT_FDDI,
- PKT_GIOP,
- PKT_ICMP,
- PKT_IP,
- PKT_LLC,
- PKT_M2M,
- PKT_MEGACO,
- PKT_NBNS,
- PKT_NCP2222,
- PKT_SCTP,
- PKT_SYSLOG,
- PKT_TCP,
- PKT_TDS,
- PKT_TR,
- PKT_UDP,
- PKT_USB,
- PKT_USB_LINUX
-};
-
-typedef struct {
- const char* abbrev;
- const char* longname;
- int produceable_type;
- int sample_wtap_encap;
- guint8* sample_buffer;
- int sample_length;
- guint8* pseudo_buffer;
- guint pseudo_length;
- wtap_dumper* dump;
- const char* filename;
- guint produce_max_bytes;
-
-} randpkt_example;
-
-/* Ethernet, indicating ARP */
-guint8 pkt_arp[] = {
- 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0x00, 0x00,
- 0x32, 0x25, 0x0f, 0xff,
- 0x08, 0x06
-};
-
-/* Ethernet+IP+UDP, indicating DNS */
-guint8 pkt_dns[] = {
- 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01,
- 0x08, 0x00,
-
- 0x45, 0x00, 0x00, 0x3c,
- 0xc5, 0x9e, 0x40, 0x00,
- 0xff, 0x11, 0xd7, 0xe0,
- 0xd0, 0x15, 0x02, 0xb8,
- 0x0a, 0x01, 0x01, 0x63,
-
- 0x05, 0xe8, 0x00, 0x35,
- 0xff, 0xff, 0x2a, 0xb9,
- 0x30
-};
-
-/* Ethernet+IP, indicating ICMP */
-guint8 pkt_icmp[] = {
- 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01,
- 0x08, 0x00,
-
- 0x45, 0x00, 0x00, 0x54,
- 0x8f, 0xb3, 0x40, 0x00,
- 0xfd, 0x01, 0x8a, 0x99,
- 0xcc, 0xfc, 0x66, 0x0b,
- 0xce, 0x41, 0x62, 0x12
-};
-
-/* Ethernet, indicating IP */
-guint8 pkt_ip[] = {
- 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01,
- 0x08, 0x00
-};
-
-/* TR, indicating LLC */
-guint8 pkt_llc[] = {
- 0x10, 0x40, 0x68, 0x00,
- 0x19, 0x69, 0x95, 0x8b,
- 0x00, 0x01, 0xfa, 0x68,
- 0xc4, 0x67
-};
-
-/* Ethernet, indicating WiMAX M2M */
-guint8 pkt_m2m[] = {
- 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0x00, 0x00,
- 0x32, 0x25, 0x0f, 0xff,
- 0x08, 0xf0
-};
-
-/* Ethernet+IP+UDP, indicating NBNS */
-guint8 pkt_nbns[] = {
- 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01,
- 0x08, 0x00,
-
- 0x45, 0x00, 0x00, 0x3c,
- 0xc5, 0x9e, 0x40, 0x00,
- 0xff, 0x11, 0xd7, 0xe0,
- 0xd0, 0x15, 0x02, 0xb8,
- 0x0a, 0x01, 0x01, 0x63,
-
- 0x00, 0x89, 0x00, 0x89,
- 0x00, 0x00, 0x2a, 0xb9,
- 0x30
-};
-
-/* Ethernet+IP+UDP, indicating syslog */
-guint8 pkt_syslog[] = {
- 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01,
- 0x08, 0x00,
-
- 0x45, 0x00, 0x00, 0x64,
- 0x20, 0x48, 0x00, 0x00,
- 0xfc, 0x11, 0xf8, 0x03,
- 0xd0, 0x15, 0x02, 0xb8,
- 0x0a, 0x01, 0x01, 0x63,
-
- 0x05, 0xe8, 0x02, 0x02,
- 0x00, 0x50, 0x51, 0xe1,
- 0x3c
-};
-
-/* TR+LLC+IP, indicating TCP */
-guint8 pkt_tcp[] = {
- 0x10, 0x40, 0x68, 0x00,
- 0x19, 0x69, 0x95, 0x8b,
- 0x00, 0x01, 0xfa, 0x68,
- 0xc4, 0x67,
-
- 0xaa, 0xaa, 0x03, 0x00,
- 0x00, 0x00, 0x08, 0x00,
-
- 0x45, 0x00, 0x00, 0x28,
- 0x0b, 0x0b, 0x40, 0x00,
- 0x20, 0x06, 0x85, 0x37,
- 0xc0, 0xa8, 0x27, 0x01,
- 0xc0, 0xa8, 0x22, 0x3c
-};
-
-/* Ethernet+IP, indicating UDP */
-guint8 pkt_udp[] = {
- 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01,
- 0x08, 0x00,
-
- 0x45, 0x00, 0x00, 0x3c,
- 0xc5, 0x9e, 0x40, 0x00,
- 0xff, 0x11, 0xd7, 0xe0,
- 0xd0, 0x15, 0x02, 0xb8,
- 0x0a, 0x01, 0x01, 0x63
-};
-
-/* Ethernet+IP+UDP, indicating BVLC */
-guint8 pkt_bvlc[] = {
- 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01,
- 0x08, 0x00,
-
- 0x45, 0x00, 0x00, 0x3c,
- 0xc5, 0x9e, 0x40, 0x00,
- 0xff, 0x11, 0x01, 0xaa,
- 0xc1, 0xff, 0x19, 0x1e,
- 0xc1, 0xff, 0x19, 0xff,
- 0xba, 0xc0, 0xba, 0xc0,
- 0x00, 0xff, 0x2d, 0x5e,
- 0x81
-};
-
-/* TR+LLC+IPX, indicating NCP, with NCP Type == 0x2222 */
-guint8 pkt_ncp2222[] = {
- 0x10, 0x40, 0x00, 0x00,
- 0xf6, 0x7c, 0x9b, 0x70,
- 0x68, 0x00, 0x19, 0x69,
- 0x95, 0x8b, 0xe0, 0xe0,
- 0x03, 0xff, 0xff, 0x00,
- 0x25, 0x02, 0x11, 0x00,
- 0x00, 0x74, 0x14, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x01, 0x04, 0x51, 0x00,
- 0x00, 0x00, 0x04, 0x00,
- 0x02, 0x16, 0x19, 0x7a,
- 0x84, 0x40, 0x01, 0x22,
- 0x22
-};
-
-/* Ethernet+IP+TCP, indicating GIOP */
-guint8 pkt_giop[] = {
- 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01,
- 0x08, 0x00,
-
- 0x45, 0x00, 0x00, 0xa6,
- 0x00, 0x2f, 0x40, 0x00,
- 0x40, 0x06, 0x3c, 0x21,
- 0x7f, 0x00, 0x00, 0x01,
- 0x7f, 0x00, 0x00, 0x01,
-
- 0x30, 0x39, 0x04, 0x05,
- 0xac, 0x02, 0x1e, 0x69,
- 0xab, 0x74, 0xab, 0x64,
- 0x80, 0x18, 0x79, 0x60,
- 0xc4, 0xb8, 0x00, 0x00,
- 0x01, 0x01, 0x08, 0x0a,
- 0x00, 0x00, 0x48, 0xf5,
- 0x00, 0x00, 0x48, 0xf5,
-
- 0x47, 0x49, 0x4f, 0x50,
- 0x01, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x30,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x01,
- 0x01
-};
-
-/* Ethernet+IP+TCP, indicating BGP */
-guint8 pkt_bgp[] = {
- 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01,
- 0x08, 0x00,
-
- 0x45, 0x00, 0x00, 0xa6,
- 0x00, 0x2f, 0x40, 0x00,
- 0x40, 0x06, 0x3c, 0x21,
- 0x7f, 0x00, 0x00, 0x01,
- 0x7f, 0x00, 0x00, 0x01,
-
- 0x30, 0x39, 0x00, 0xb3,
- 0xac, 0x02, 0x1e, 0x69,
- 0xab, 0x74, 0xab, 0x64,
- 0x80, 0x18, 0x79, 0x60,
- 0xc4, 0xb8, 0x00, 0x00,
- 0x01, 0x01, 0x08, 0x0a,
- 0x00, 0x00, 0x48, 0xf5,
- 0x00, 0x00, 0x48, 0xf5,
-
- 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff,
-};
-
-/* Ethernet+IP+TCP, indicating TDS NetLib */
-guint8 pkt_tds[] = {
- 0x00, 0x50, 0x8b, 0x0d,
- 0x7a, 0xed, 0x00, 0x08,
- 0xa3, 0x98, 0x39, 0x81,
- 0x08, 0x00,
-
- 0x45, 0x00, 0x03, 0x8d,
- 0x90, 0xd4, 0x40, 0x00,
- 0x7c, 0x06, 0xc3, 0x1b,
- 0xac, 0x14, 0x02, 0x22,
- 0x0a, 0xc2, 0xee, 0x82,
-
- 0x05, 0x99, 0x08, 0xf8,
- 0xff, 0x4e, 0x85, 0x46,
- 0xa2, 0xb4, 0x42, 0xaa,
- 0x50, 0x18, 0x3c, 0x28,
- 0x0f, 0xda, 0x00, 0x00,
-};
-
-/* Ethernet+IP, indicating SCTP */
-guint8 pkt_sctp[] = {
- 0x00, 0xa0, 0x80, 0x00,
- 0x5e, 0x46, 0x08, 0x00,
- 0x03, 0x4a, 0x00, 0x35,
- 0x08, 0x00,
-
- 0x45, 0x00, 0x00, 0x7c,
- 0x14, 0x1c, 0x00, 0x00,
- 0x3b, 0x84, 0x4a, 0x54,
- 0x0a, 0x1c, 0x06, 0x2b,
- 0x0a, 0x1c, 0x06, 0x2c,
-};
-
-
-/* Ethernet+IP+SCTP, indicating MEGACO */
-guint8 pkt_megaco[] = {
- 0x00, 0xa0, 0x80, 0x00,
- 0x5e, 0x46, 0x08, 0x00,
- 0x03, 0x4a, 0x00, 0x35,
- 0x08, 0x00,
-
- 0x45, 0x00, 0x00, 0x7c,
- 0x14, 0x1c, 0x00, 0x00,
- 0x3b, 0x84, 0x4a, 0x54,
- 0x0a, 0x1c, 0x06, 0x2b,
- 0x0a, 0x1c, 0x06, 0x2c,
-
- 0x40, 0x00, 0x0b, 0x80,
- 0x00, 0x01, 0x6f, 0x0a,
- 0x6d, 0xb0, 0x18, 0x82,
- 0x00, 0x03, 0x00, 0x5b,
- 0x28, 0x02, 0x43, 0x45,
- 0x00, 0x00, 0xa0, 0xbd,
- 0x00, 0x00, 0x00, 0x07,
-};
-
-/* This little data table drives the whole program */
-randpkt_example examples[] = {
- { "arp", "Address Resolution Protocol",
- PKT_ARP, WTAP_ENCAP_ETHERNET,
- pkt_arp, array_length(pkt_arp),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "bgp", "Border Gateway Protocol",
- PKT_BGP, WTAP_ENCAP_ETHERNET,
- pkt_bgp, array_length(pkt_bgp),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "bvlc", "BACnet Virtual Link Control",
- PKT_BVLC, WTAP_ENCAP_ETHERNET,
- pkt_bvlc, array_length(pkt_bvlc),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "dns", "Domain Name Service",
- PKT_DNS, WTAP_ENCAP_ETHERNET,
- pkt_dns, array_length(pkt_dns),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "eth", "Ethernet",
- PKT_ETHERNET, WTAP_ENCAP_ETHERNET,
- NULL, 0,
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "fddi", "Fiber Distributed Data Interface",
- PKT_FDDI, WTAP_ENCAP_FDDI,
- NULL, 0,
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "giop", "General Inter-ORB Protocol",
- PKT_GIOP, WTAP_ENCAP_ETHERNET,
- pkt_giop, array_length(pkt_giop),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "icmp", "Internet Control Message Protocol",
- PKT_ICMP, WTAP_ENCAP_ETHERNET,
- pkt_icmp, array_length(pkt_icmp),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "ip", "Internet Protocol",
- PKT_IP, WTAP_ENCAP_ETHERNET,
- pkt_ip, array_length(pkt_ip),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "llc", "Logical Link Control",
- PKT_LLC, WTAP_ENCAP_TOKEN_RING,
- pkt_llc, array_length(pkt_llc),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "m2m", "WiMAX M2M Encapsulation Protocol",
- PKT_M2M, WTAP_ENCAP_ETHERNET,
- pkt_m2m, array_length(pkt_m2m),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "megaco", "MEGACO",
- PKT_MEGACO, WTAP_ENCAP_ETHERNET,
- pkt_megaco, array_length(pkt_megaco),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "nbns", "NetBIOS-over-TCP Name Service",
- PKT_NBNS, WTAP_ENCAP_ETHERNET,
- pkt_nbns, array_length(pkt_nbns),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "ncp2222", "NetWare Core Protocol",
- PKT_NCP2222, WTAP_ENCAP_TOKEN_RING,
- pkt_ncp2222, array_length(pkt_ncp2222),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "sctp", "Stream Control Transmission Protocol",
- PKT_SCTP, WTAP_ENCAP_ETHERNET,
- pkt_sctp, array_length(pkt_sctp),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "syslog", "Syslog message",
- PKT_SYSLOG, WTAP_ENCAP_ETHERNET,
- pkt_syslog, array_length(pkt_syslog),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "tds", "TDS NetLib",
- PKT_TDS, WTAP_ENCAP_ETHERNET,
- pkt_tds, array_length(pkt_tds),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "tcp", "Transmission Control Protocol",
- PKT_TCP, WTAP_ENCAP_TOKEN_RING,
- pkt_tcp, array_length(pkt_tcp),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "tr", "Token-Ring",
- PKT_TR, WTAP_ENCAP_TOKEN_RING,
- NULL, 0,
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "udp", "User Datagram Protocol",
- PKT_UDP, WTAP_ENCAP_ETHERNET,
- pkt_udp, array_length(pkt_udp),
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "usb", "Universal Serial Bus",
- PKT_USB, WTAP_ENCAP_USB,
- NULL, 0,
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
- { "usb-linux", "Universal Serial Bus with Linux specific header",
- PKT_USB_LINUX, WTAP_ENCAP_USB_LINUX,
- NULL, 0,
- NULL, 0,
- NULL, NULL,
- 1000,
- },
-
-};
-
-/* Parse command-line option "type" and return enum type */
-static
-int randpkt_parse_type(char *string)
-{
- int num_entries = array_length(examples);
- int i;
-
- /* Called with NULL, choose a random packet */
- if (!string) {
- return examples[rand() % num_entries].produceable_type;
- }
-
- for (i = 0; i < num_entries; i++) {
- if (g_strcmp0(examples[i].abbrev, string) == 0) {
- return examples[i].produceable_type;
- }
- }
-
- /* Complain */
- fprintf(stderr, "randpkt: Type %s not known.\n", string);
- return -1;
-}
-
-static void usage(gboolean is_error);
-
-/* Seed the random-number generator */
+/* Print usage statement and exit program */
static void
-randpkt_seed(void)
+usage(gboolean is_error)
{
- unsigned int randomness;
- time_t now;
-#ifndef _WIN32
- int fd;
- ssize_t ret;
-
-#define RANDOM_DEV "/dev/urandom"
+ FILE *output;
+ const char** abbrev_list;
+ const char** longname_list;
+ unsigned list_num;
+ unsigned i;
- /*
- * Assume it's at least worth trying /dev/urandom on UN*X.
- * If it doesn't exist, fall back on time().
- *
- * XXX - Use CryptGenRandom on Windows?
- */
- fd = ws_open(RANDOM_DEV, O_RDONLY);
- if (fd == -1) {
- if (errno != ENOENT) {
- fprintf(stderr,
- "randpkt: Could not open " RANDOM_DEV " for reading: %s\n",
- g_strerror(errno));
- exit(2);
- }
- goto fallback;
- }
-
- ret = ws_read(fd, &randomness, sizeof randomness);
- if (ret == -1) {
- fprintf(stderr,
- "randpkt: Could not read from " RANDOM_DEV ": %s\n",
- g_strerror(errno));
- exit(2);
+ if (!is_error) {
+ output = stdout;
}
- if ((size_t)ret != sizeof randomness) {
- fprintf(stderr,
- "randpkt: Tried to read %lu bytes from " RANDOM_DEV ", got %ld\n",
- (unsigned long)sizeof randomness, (long)ret);
- exit(2);
+ else {
+ output = stderr;
}
- srand(randomness);
- ws_close(fd);
- return;
-
-fallback:
-#endif
- now = time(NULL);
- randomness = (unsigned int) now;
-
- srand(randomness);
-}
-
-static randpkt_example* randpkt_find_example(int type);
-static void randpkt_example_init(randpkt_example* example, char* produce_filename, int produce_max_bytes)
-{
- int err;
-
- if (strcmp(produce_filename, "-") == 0) {
- /* Write to the standard output. */
- example->dump = wtap_dump_open_stdout(WTAP_FILE_TYPE_SUBTYPE_PCAP,
- example->sample_wtap_encap, produce_max_bytes, FALSE /* compressed */, &err);
- example->filename = "the standard output";
- } else {
- example->dump = wtap_dump_open(produce_filename, WTAP_FILE_TYPE_SUBTYPE_PCAP,
- example->sample_wtap_encap, produce_max_bytes, FALSE /* compressed */, &err);
- example->filename = produce_filename;
- }
- if (!example->dump) {
- fprintf(stderr, "randpkt: Error writing to %s\n", example->filename);
- exit(2);
- }
+ fprintf(output, "Usage: randpkt [-b maxbytes] [-c count] [-t type] [-r] filename\n");
+ fprintf(output, "Default max bytes (per packet) is 5000\n");
+ fprintf(output, "Default count is 1000.\n");
+ fprintf(output, "-r: random packet type selection\n");
+ fprintf(output, "\n");
+ fprintf(output, "Types:\n");
- /* reduce max_bytes by # of bytes already in sample */
- if (produce_max_bytes <= example->sample_length) {
- fprintf(stderr, "randpkt: Sample packet length is %d, which is greater than "
- "or equal to\n", example->sample_length);
- fprintf(stderr, "your requested max_bytes value of %d\n", produce_max_bytes);
- exit(1);
- } else {
- example->produce_max_bytes -= example->sample_length;
+ /* Get the examples list */
+ randpkt_example_list(&abbrev_list, &longname_list, &list_num);
+ for (i = 0; i < list_num; i++) {
+ fprintf(output, "\t%-16s%s\n", abbrev_list[i], longname_list[i]);
}
-}
-
-static gboolean randpkt_example_close(randpkt_example* example)
-{
- int err;
-
- if (!wtap_dump_close(example->dump, &err)) {
- fprintf(stderr, "Error writing to %s: %s\n",
- example->filename, wtap_strerror(err));
- return FALSE;
- }
- return TRUE;
-}
-
-static void randpkt_loop(randpkt_example* example, guint64 produce_count)
-{
- guint i;
- int j;
- int err;
- int len_random;
- int len_this_pkt;
- gchar* err_info;
- union wtap_pseudo_header* ps_header;
- guint8 buffer[65536];
- struct wtap_pkthdr* pkthdr;
-
- pkthdr = g_new0(struct wtap_pkthdr, 1);
-
- pkthdr->rec_type = REC_TYPE_PACKET;
- pkthdr->presence_flags = WTAP_HAS_TS;
- pkthdr->pkt_encap = example->sample_wtap_encap;
-
- memset(pkthdr, 0, sizeof(struct wtap_pkthdr));
- memset(buffer, 0, sizeof(buffer));
-
- ps_header = &pkthdr->pseudo_header;
-
- /* Load the sample pseudoheader into our pseudoheader buffer */
- if (example->pseudo_buffer)
- memcpy(ps_header, example->pseudo_buffer, example->pseudo_length);
+ g_free((char**)abbrev_list);
+ g_free((char**)longname_list);
- /* Load the sample into our buffer */
- if (example->sample_buffer)
- memcpy(buffer, example->sample_buffer, example->sample_length);
-
- /* Produce random packets */
- for (i = 0; i < produce_count; i++) {
- if (example->produce_max_bytes > 0) {
- len_random = (rand() % example->produce_max_bytes + 1);
- }
- else {
- len_random = 0;
- }
-
- len_this_pkt = example->sample_length + len_random;
-
- pkthdr->caplen = len_this_pkt;
- pkthdr->len = len_this_pkt;
- pkthdr->ts.secs = i; /* just for variety */
-
- for (j = example->pseudo_length; j < (int) sizeof(*ps_header); j++) {
- ((guint8*)ps_header)[j] = (rand() % 0x100);
- }
-
- for (j = example->sample_length; j < len_this_pkt; j++) {
- /* Add format strings here and there */
- if ((int) (100.0*rand()/(RAND_MAX+1.0)) < 3 && j < (len_random - 3)) {
- memcpy(&buffer[j], "%s", 3);
- j += 2;
- } else {
- buffer[j] = (rand() % 0x100);
- }
- }
-
- if (!wtap_dump(example->dump, pkthdr, buffer, &err, &err_info)) {
- fprintf(stderr, "randpkt: Error writing to %s: %s\n",
- example->filename, wtap_strerror(err));
- switch (err) {
-
- case WTAP_ERR_UNWRITABLE_ENCAP:
- /*
- * This is a problem with the particular
- * frame we're writing and the file type
- * and subtype we're writing; note that,
- * and report the file type/subtype.
- */
- fprintf(stderr,
- "Frame has a network type that can't be saved in a \"%s\" file.\n",
- wtap_file_type_subtype_short_string(WTAP_FILE_TYPE_SUBTYPE_PCAP));
- break;
-
- case WTAP_ERR_PACKET_TOO_LARGE:
- /*
- * This is a problem with the particular
- * frame we're writing and the file type
- * and subtype we're writing; note that,
- * and report the file type/subtype.
- */
- fprintf(stderr,
- "Frame is too large for a \"%s\" file.\n",
- wtap_file_type_subtype_short_string(WTAP_FILE_TYPE_SUBTYPE_PCAP));
- break;
-
- case WTAP_ERR_UNWRITABLE_REC_TYPE:
- /*
- * This is a problem with the particular
- * record we're writing and the file type
- * and subtype we're writing; note that,
- * and report the file type/subtype.
- */
- fprintf(stderr,
- "Record has a record type that can't be saved in a \"%s\" file.\n",
- wtap_file_type_subtype_short_string(WTAP_FILE_TYPE_SUBTYPE_PCAP));
- break;
-
- case WTAP_ERR_UNWRITABLE_REC_DATA:
- /*
- * This is a problem with the particular
- * record we're writing and the file type
- * and subtype we're writing; note that,
- * and report the file type/subtype.
- */
- fprintf(stderr,
- "Record has data that can't be saved in a \"%s\" file.\n(%s)\n",
- wtap_file_type_subtype_short_string(WTAP_FILE_TYPE_SUBTYPE_PCAP),
- err_info != NULL ? err_info : "no information supplied");
- g_free(err_info);
- break;
-
- default:
- break;
- }
- }
- }
+ fprintf(output, "\nIf type is not specified, a random packet will be chosen\n\n");
- g_free(pkthdr);
+ exit(is_error ? 1 : 0);
}
-
int
main(int argc, char **argv)
{
@@ -902,55 +180,6 @@ DIAG_ON(cast-qual)
}
-/* Print usage statement and exit program */
-static void
-usage(gboolean is_error)
-{
- FILE *output;
- int num_entries = array_length(examples);
- int i;
-
- if (!is_error) {
- output = stdout;
- }
- else {
- output = stderr;
- }
-
- fprintf(output, "Usage: randpkt [-b maxbytes] [-c count] [-t type] [-r] filename\n");
- fprintf(output, "Default max bytes (per packet) is 5000\n");
- fprintf(output, "Default count is 1000.\n");
- fprintf(output, "-r: random packet type selection\n");
- fprintf(output, "\n");
- fprintf(output, "Types:\n");
-
- for (i = 0; i < num_entries; i++) {
- fprintf(output, "\t%-16s%s\n", examples[i].abbrev, examples[i].longname);
- }
-
- fprintf(output, "\nIf type is not specified, a random packet will be chosen\n\n");
-
- exit(is_error ? 1 : 0);
-}
-
-/* Find pkt_example record and return pointer to it */
-static
-randpkt_example* randpkt_find_example(int type)
-{
- int num_entries = array_length(examples);
- int i;
-
- for (i = 0; i < num_entries; i++) {
- if (examples[i].produceable_type == type) {
- return &examples[i];
- }
- }
-
- fprintf(stderr, "randpkt: Internal error. Type %d has no entry in examples table.\n",
- type);
- return NULL;
-}
-
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*