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-rw-r--r--src/cansend.c178
1 files changed, 90 insertions, 88 deletions
diff --git a/src/cansend.c b/src/cansend.c
index 07a1019..fb534e9 100644
--- a/src/cansend.c
+++ b/src/cansend.c
@@ -23,26 +23,26 @@ extern int optind, opterr, optopt;
static void print_usage(char *prg)
{
- fprintf(stderr, "Usage: %s <can-interface> [Options] <can-msg>\n"
- "<can-msg> can consist of up to 8 bytes given as a space separated list\n"
- "Options:\n"
- " -i, --identifier=ID CAN Identifier (default = 1)\n"
- " -r --rtr send remote request\n"
- " -e --extended send extended frame\n"
- " -f, --family=FAMILY Protocol family (default PF_CAN = %d)\n"
- " -t, --type=TYPE Socket type, see man 2 socket (default SOCK_RAW = %d)\n"
- " -p, --protocol=PROTO CAN protocol (default CAN_RAW = %d)\n"
- " -l send message infinite times\n"
- " --loop=COUNT send message COUNT times\n"
- " -v, --verbose be verbose\n"
- " -h, --help this help\n"
- " --version print version information and exit\n",
- prg, PF_CAN, SOCK_RAW, CAN_RAW);
-}
-
-enum
-{
- VERSION_OPTION = CHAR_MAX + 1,
+ fprintf(stderr,
+ "Usage: %s <can-interface> [Options] <can-msg>\n"
+ "<can-msg> can consist of up to 8 bytes given as a space separated list\n"
+ "Options:\n"
+ " -i, --identifier=ID CAN Identifier (default = 1)\n"
+ " -r --rtr send remote request\n"
+ " -e --extended send extended frame\n"
+ " -f, --family=FAMILY Protocol family (default PF_CAN = %d)\n"
+ " -t, --type=TYPE Socket type, see man 2 socket (default SOCK_RAW = %d)\n"
+ " -p, --protocol=PROTO CAN protocol (default CAN_RAW = %d)\n"
+ " -l COUNT send message COUNT times, infinite if omitted\n"
+ " --loop=COUNT \n"
+ " -v, --verbose be verbose\n"
+ " -h, --help this help\n"
+ " --version print version information and exit\n",
+ prg, PF_CAN, SOCK_RAW, CAN_RAW);
+}
+
+enum {
+ VERSION_OPTION = CHAR_MAX + 1,
};
int main(int argc, char **argv)
@@ -55,93 +55,95 @@ int main(int argc, char **argv)
int loopcount = 1, infinite = 0;
struct ifreq ifr;
- struct option long_options[] = {
- { "help", no_argument, 0, 'h' },
- { "identifier", required_argument, 0, 'i'},
- { "rtr", no_argument, 0, 'r'},
- { "extended", no_argument, 0, 'e'},
- { "family", required_argument, 0, 'f' },
- { "protocol", required_argument, 0, 'p' },
- { "type", required_argument, 0, 't' },
- { "version", no_argument, 0, VERSION_OPTION},
- { "verbose", no_argument, 0, 'v'},
- { "loop", required_argument, 0, 'l'},
- { 0, 0, 0, 0},
+ struct option long_options[] = {
+ { "help", no_argument, 0, 'h' },
+ { "identifier", required_argument, 0, 'i' },
+ { "rtr", no_argument, 0, 'r' },
+ { "extended", no_argument, 0, 'e' },
+ { "family", required_argument, 0, 'f' },
+ { "protocol", required_argument, 0, 'p' },
+ { "type", required_argument, 0, 't' },
+ { "version", no_argument, 0, VERSION_OPTION},
+ { "verbose", no_argument, 0, 'v'},
+ { "loop", optional_argument, 0, 'l'},
+ { 0, 0, 0, 0 },
};
frame.can_id = 1;
- while ((opt = getopt_long(argc, argv, "hf:t:p:vi:lre", long_options, NULL)) != -1) {
+ while ((opt = getopt_long(argc, argv, "hf:t:p:vi:l::re", long_options, NULL)) != -1) {
switch (opt) {
- case 'h':
- print_usage(basename(argv[0]));
- exit(0);
-
- case 'f':
- family = strtoul(optarg, NULL, 0);
- break;
-
- case 't':
- type = strtoul(optarg, NULL, 0);
- break;
-
- case 'p':
- proto = strtoul(optarg, NULL, 0);
- break;
-
- case 'v':
- verbose = 1;
- break;
-
- case 'l':
- if(optarg)
- loopcount = strtoul(optarg, NULL, 0);
- else
- infinite = 1;
- break;
- case 'i':
- frame.can_id = strtoul(optarg, NULL, 0);
- break;
-
- case 'r':
- rtr = 1;
- break;
-
- case 'e':
- extended = 1;
- break;
-
- case VERSION_OPTION:
- printf("cansend %s\n",VERSION);
- exit(0);
-
- default:
- fprintf(stderr, "Unknown option %c\n", opt);
- break;
+ case 'h':
+ print_usage(basename(argv[0]));
+ exit(0);
+
+ case 'f':
+ family = strtoul(optarg, NULL, 0);
+ break;
+
+ case 't':
+ type = strtoul(optarg, NULL, 0);
+ break;
+
+ case 'p':
+ proto = strtoul(optarg, NULL, 0);
+ break;
+
+ case 'v':
+ verbose = 1;
+ break;
+
+ case 'l':
+ if (optarg)
+ loopcount = strtoul(optarg, NULL, 0);
+ else
+ infinite = 1;
+ break;
+ case 'i':
+ frame.can_id = strtoul(optarg, NULL, 0);
+ break;
+
+ case 'r':
+ rtr = 1;
+ break;
+
+ case 'e':
+ extended = 1;
+ break;
+
+ case VERSION_OPTION:
+ printf("cansend %s\n", VERSION);
+ exit(0);
+
+ default:
+ fprintf(stderr, "Unknown option %c\n", opt);
+ break;
}
}
if (optind == argc) {
print_usage(basename(argv[0]));
exit(0);
- }
-
+ }
+
if (argv[optind] == NULL) {
fprintf(stderr, "No Interface supplied\n");
exit(-1);
}
- if(verbose)
+ if (verbose)
printf("interface = %s, family = %d, type = %d, proto = %d\n",
argv[optind], family, type, proto);
- if ((s = socket(family, type, proto)) < 0) {
+
+ s = socket(family, type, proto);
+ if (s < 0) {
perror("socket");
return 1;
}
addr.can_family = family;
strcpy(ifr.ifr_name, argv[optind]);
- if( ioctl(s, SIOCGIFINDEX, &ifr) ) {
+ if (ioctl(s, SIOCGIFINDEX, &ifr)) {
perror("ioctl");
return 1;
}
@@ -168,16 +170,16 @@ int main(int argc, char **argv)
frame.can_id |= CAN_EFF_FLAG;
if (verbose) {
- printf("id: %d ",frame.can_id);
- printf("dlc: %d\n",frame.can_dlc);
- for(i = 0; i < frame.can_dlc; i++)
- printf("0x%02x ",frame.data[i]);
+ printf("id: %d ", frame.can_id);
+ printf("dlc: %d\n", frame.can_dlc);
+ for (i = 0; i < frame.can_dlc; i++)
+ printf("0x%02x ", frame.data[i]);
printf("\n");
}
while (infinite || loopcount--) {
ret = write(s, &frame, sizeof(frame));
- if( ret == -1 ) {
+ if (ret == -1) {
perror("write");
break;
}