diff options
Diffstat (limited to 'randpkt.c')
| -rw-r--r-- | randpkt.c | 837 |
1 files changed, 33 insertions, 804 deletions
@@ -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 * |