Make mapping support a definable feature, saves 1.6kB

diff --git a/networking/config.in b/networking/config.in
index fe714fe..7393feb 100644 (file)
--- a/networking/config.in
+++ b/networking/config.in
@@ -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

diff --git a/networking/ifupdown.c b/networking/ifupdown.c
index f56842d..392bdf0 100644 (file)
--- a/networking/ifupdown.c
+++ b/networking/ifupdown.c
@@ -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) {