sven
/
can-utils
mirror of https://github.com/linux-can/can-utils.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Added support for inverted CAN ID filters.

pull/7/head
Oliver Hartkopp 2010-09-24 18:23:42 +00:00
parent d7fe33eb4b
commit 1463ee4ce4
1 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
cangw.c
View File

@ -203,7 +203,9 @@ void print_usage(char *prg)
fprintf(stderr, " -p <profile>:[<profile_data>] (CRC8 checksum profile & parameters)\n");
fprintf(stderr, "\nValues are given and expected in hexadecimal values. Leading 0s can be omitted.\n");
fprintf(stderr, "\n");
fprintf(stderr, "<filter> is a <value>:<mask> CAN identifier filter\n");
fprintf(stderr, "<filter> is a <value><mask> CAN identifier filter\n");
fprintf(stderr, " <can_id>:<can_mask> (matches when <received_can_id> & mask == can_id & mask)\n");
fprintf(stderr, " <can_id>~<can_mask> (matches when <received_can_id> & mask != can_id & mask)\n");
fprintf(stderr, "\n");
fprintf(stderr, "<mod> is a CAN frame modification instruction consisting of\n");
fprintf(stderr, "<instruction>:<can_frame-elements>:<can_id>.<can_dlc>.<can_data>\n");
@ -595,6 +597,11 @@ int main(int argc, char **argv)
(long unsigned int *)&filter.can_id,
(long unsigned int *)&filter.can_mask) == 2) {
have_filter = 1;
} else if (sscanf(optarg, "%lx~%lx",
(long unsigned int *)&filter.can_id,
(long unsigned int *)&filter.can_mask) == 2) {
filter.can_id |= CAN_INV_FILTER;
have_filter = 1;
} else {
printf("Bad filter definition '%s'.\n", optarg);
exit(1);