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Make mapping support a definable feature, saves 1.6kB

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This commit is contained in:
Glenn L McGrath 2002-11-10 13:17:08 +00:00
parent 8ae75013c8
commit 49a28b3b5e
2 changed files with 40 additions and 31 deletions
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1
networking/config.in
View File

@ -21,6 +21,7 @@ if [ "$CONFIG_IFUPDOWN" = "y" ]; then
bool ' Enable support for IPv4' CONFIG_FEATURE_IFUPDOWN_IPV4
bool ' Enable support for IPv6 (requires ip command)' CONFIG_FEATURE_IFUPDOWN_IPV6
bool ' Enable support for IPX (requires ipx_interface command)' CONFIG_FEATURE_IFUPDOWN_IPX
bool ' Mapping support' CONFIG_FEATURE_IFUPDOWN_MAPPING
fi
bool 'ip' CONFIG_IP
if [ "$CONFIG_IP" = "y" ]; then

70
networking/ifupdown.c
View File

@ -57,6 +57,7 @@ typedef struct address_family {
method *method;
} address_family;
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
typedef struct mapping_defn {
struct mapping_defn *next;
@ -70,6 +71,7 @@ typedef struct mapping_defn {
int n_mappings;
char **mapping;
} mapping_defn;
#endif
typedef struct variable {
char *name;
@ -96,7 +98,9 @@ typedef struct interfaces_file {
char **autointerfaces;
interface_defn *ifaces;
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
mapping_defn *mappings;
#endif
} interfaces_file;
#define MAX_OPT_DEPTH 10
@ -109,17 +113,6 @@ static int no_act = 0;
static int verbose = 0;
static char **environ = NULL;
static int execable(char *program)
{
struct stat buf;
if (0 == stat(program, &buf)) {
if (S_ISREG(buf.st_mode) && (S_IXUSR & buf.st_mode)) {
return(1);
}
}
return(0);
}
static void addstr(char **buf, size_t *len, size_t *pos, char *str, size_t str_length)
{
if (*pos + str_length >= *len) {
@ -434,6 +427,17 @@ static int static_down(interface_defn *ifd, execfn *exec)
return(1);
}
static int execable(char *program)
{
struct stat buf;
if (0 == stat(program, &buf)) {
if (S_ISREG(buf.st_mode) && (S_IXUSR & buf.st_mode)) {
return(1);
}
}
return(0);
}
static int dhcp_up(interface_defn *ifd, execfn *exec)
{
if (execable("/sbin/dhclient")) {
@ -679,7 +683,9 @@ static interfaces_file *read_interfaces(char *filename)
{
interface_defn *currif = NULL;
interfaces_file *defn;
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
mapping_defn *currmap = NULL;
#endif
FILE *f;
char firstword[80];
char *buf = NULL;
@ -692,7 +698,9 @@ static interfaces_file *read_interfaces(char *filename)
defn = xmalloc(sizeof(interfaces_file));
defn->max_autointerfaces = defn->n_autointerfaces = 0;
defn->autointerfaces = NULL;
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
defn->mappings = NULL;
#endif
defn->ifaces = NULL;
f = fopen(filename, "r");
if (f == NULL) {
@ -707,7 +715,7 @@ static interfaces_file *read_interfaces(char *filename)
}
if (strcmp(firstword, "mapping") == 0) {
#if 0
currmap = xmalloc(sizeof(mapping_defn));
currmap->max_matches = 0;
currmap->n_matches = 0;
@ -734,6 +742,7 @@ static interfaces_file *read_interfaces(char *filename)
currmap->next = NULL;
}
currently_processing = MAPPING;
#endif
} else if (strcmp(firstword, "iface") == 0) {
{
char iface_name[80];
@ -871,6 +880,7 @@ static interfaces_file *read_interfaces(char *filename)
currif->n_options++;
break;
case MAPPING:
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
if (strcmp(firstword, "script") == 0) {
if (currmap->script != NULL) {
error_msg("%s:%d: duplicate script in mapping", filename, line);
@ -889,6 +899,7 @@ static interfaces_file *read_interfaces(char *filename)
error_msg("%s:%d: misplaced option", filename, line);
return NULL;
}
#endif
break;
case NONE:
default:
@ -1063,6 +1074,7 @@ static int iface_down(interface_defn *iface)
return (1);
}
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
static int popen2(FILE **in, FILE **out, char *command, ...)
{
va_list ap;
@ -1144,6 +1156,8 @@ static int run_mapping(char *physical, char *logical, int len, mapping_defn * ma
return 1;
}
#endif /* CONFIG_FEATURE_IFUPDOWN_MAPPING */
static int lookfor_iface(char **ifaces, int n_ifaces, char *iface)
{
@ -1173,16 +1187,6 @@ static void add_to_state(char ***ifaces, int *n_ifaces, int *max_ifaces, char *n
extern int ifupdown_main(int argc, char **argv)
{
int (*cmds) (interface_defn *) = NULL;
struct option long_opts[] = {
{"help", no_argument, NULL, 'h'},
{"verbose", no_argument, NULL, 'v'},
{"all", no_argument, NULL, 'a'},
{"interfaces", required_argument, NULL, 'i'},
{"no-act", no_argument, NULL, 'n'},
{"no-mappings", no_argument, NULL, 1},
{"force", no_argument, NULL, 2},
{0, 0, 0, 0}
};
interfaces_file *defn;
FILE *state_fp = NULL;
char **target_iface = NULL;
@ -1191,7 +1195,9 @@ extern int ifupdown_main(int argc, char **argv)
char *statefile = "/etc/network/ifstate";
int do_all = 0;
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
int run_mappings = 1;
#endif
int force = 0;
int n_target_ifaces = 0;
int n_state = 0;
@ -1206,24 +1212,26 @@ extern int ifupdown_main(int argc, char **argv)
cmds = iface_down;
}
while ((i = getopt_long(argc, argv, "i:hvna", long_opts, NULL)) != EOF) {
while ((i = getopt(argc, argv, "i:hvnamf")) != -1) {
switch (i) {
case 'i':
case 'i': /* interfaces */
interfaces = xstrdup(optarg);
break;
case 'v':
case 'v': /* verbose */
verbose = 1;
break;
case 'a':
case 'a': /* all */
do_all = 1;
break;
case 'n':
case 'n': /* no-act */
no_act = 1;
break;
case 1:
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
case 'm': /* no-mappings */
run_mappings = 0;
break;
case 2:
#endif
case 'f': /* force */
force = 1;
break;
default:
@ -1346,7 +1354,7 @@ extern int ifupdown_main(int argc, char **argv)
liface[79] = 0;
}
}
#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
if ((cmds == iface_up) && run_mappings) {
mapping_defn *currmap;
@ -1363,7 +1371,7 @@ extern int ifupdown_main(int argc, char **argv)
}
}
}
#endif
for (currif = defn->ifaces; currif; currif = currif->next) {
if (strcmp(liface, currif->iface) == 0) {