ChronosXYZ/netsukuku
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I added more complete comments, And cleaned up some stuff.

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This commit is contained in:
MissValeska 2014-06-05 10:23:55 -07:00
parent c6209e0436
commit a7b9b6cf51
1 changed files with 29 additions and 12 deletions
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41
src/netsukuku.c
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@ -49,7 +49,7 @@ extern int optind, opterr, optopt;
int destroy_netsukuku_mutex; int destroy_netsukuku_mutex;
int pid_saved; int pid_saved;
int prevent_doubles; int prevent_duplication;
int options_parsed=0; /* How many times parse_options() has been called */ int options_parsed=0; /* How many times parse_options() has been called */
@ -326,7 +326,7 @@ void free_server_opt(void)
xfree(server_opt.ifs[i]); xfree(server_opt.ifs[i]);
} }
// Checks and removes any existing interface which is intended to be excluded /* Checks and removes any existing interface which is intended to be excluded*/
void check_excluded(void) { void check_excluded(void) {
@ -346,13 +346,30 @@ void check_excluded(void) {
} }
// Adds all interfaces available which are up, And not the interface set by the user. /* Adds all interfaces available which are up, And not the interface set by the user.
// -e eth0 would exclude eth0 from being used by netsukuku. * -e eth0 would exclude eth0 from being used by netsukuku. It, Also, Excludes the
// returns 0 on success, -1 on error, And 1 if it has already been run. * loopback interface, And tunl0, and tunl1, If it exists.
*
* It iterates through a pointer to the getifaddrs struct, Using the ifa_name member
* for reading the interface name, And ifa_next to move to the next
* interface in the array.
*
* It commits every up interface name that is not the one specified to be excluded
* by the user, Nor the loop back interface to server_opt.ifs and to pointer
* to the struct interface in the member dev_name, And increments the server_opt.ifs_n member.
* It, Also, Sets the index of each interface to a pointer to the struct interface
* in the member dev_idx
*
* It checks if it has already been run, If it has, It just runs check_excluded()
* and then exits. check_excluded() is run at the end of the function
* to check for errors in excluding optarg.
*
* returns 0 on success, -1 on error, And 1 if it has already been run.
*/
int exclude_interface(int prevent_doubles) { int exclude_interface() {
if(prevent_doubles == 1) { if(prevent_duplication == 1) {
check_excluded(); check_excluded();
return 1; return 1;
} }
@ -393,10 +410,10 @@ int exclude_interface(int prevent_doubles) {
strncpy(ifs_a[ifs_n].dev_name, ifs, (int)strlen(ifs)); strncpy(ifs_a[ifs_n].dev_name, ifs, (int)strlen(ifs));
check_excluded();
} }
check_excluded();
freeifaddrs(addrs); freeifaddrs(addrs);
} }
@ -442,9 +459,9 @@ void parse_options(int argc, char **argv)
exit(0); exit(0);
break; break;
case 'e': case 'e':
prevent_doubles = -1; prevent_duplication = -1;
prevent_doubles++; prevent_duplication++;
exclude_interface(prevent_doubles); exclude_interface();
break; break;
case 'k': case 'k':
if(is_ntkd_already_running() == 1){ if(is_ntkd_already_running() == 1){