X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;ds=sidebyside;f=lib%2Fipaccess.c;h=5dd388ccd36ee0a5a68c71c47656650458629d13;hb=eba3a7669754c87b65437975cb362dd1640707e9;hp=81b35ed07b8e5bb3659255f7068f63e827d5d2fa;hpb=254af569641abfe831eff214fcb3bd35deee5030;p=libucw.git diff --git a/lib/ipaccess.c b/lib/ipaccess.c index 81b35ed0..5dd388cc 100644 --- a/lib/ipaccess.c +++ b/lib/ipaccess.c @@ -1,7 +1,7 @@ /* * UCW Library -- IP address access lists * - * (c) 1997--2006 Martin Mares + * (c) 1997--2007 Martin Mares * * This software may be freely distributed and used according to the terms * of the GNU Lesser General Public License. @@ -9,37 +9,33 @@ #include "lib/lib.h" #include "lib/clists.h" -#include "lib/conf2.h" +#include "lib/conf.h" +#include "lib/getopt.h" #include "lib/fastbuf.h" #include "lib/ipaccess.h" #include -struct addrmask { - u32 addr; - u32 mask; -}; - struct ipaccess_entry { cnode n; int allow; - struct addrmask addr; + struct ip_addrmask addr; }; -static byte * -addrmask_parser(byte *c, void *ptr) +static char * +addrmask_parser(char *c, void *ptr) { /* * This is tricky: addrmasks will be compared by memcmp(), so we must ensure * that even the padding between structure members is zeroed out. */ - struct addrmask *am = ptr; + struct ip_addrmask *am = ptr; bzero(am, sizeof(*am)); - byte *p = strchr(c, '/'); + char *p = strchr(c, '/'); if (p) *p++ = 0; - byte *err = cf_parse_ip(c, &am->addr); + char *err = cf_parse_ip(c, &am->addr); if (err) return err; if (p) @@ -58,13 +54,13 @@ addrmask_parser(byte *c, void *ptr) static void addrmask_dumper(struct fastbuf *fb, void *ptr) { - struct addrmask *am = ptr; + struct ip_addrmask *am = ptr; bprintf(fb, "%08x/%08x ", am->addr, am->mask); } -static struct cf_user_type addrmask_type = { - .size = sizeof(struct addrmask), - .name = "addrmask", +struct cf_user_type ip_addrmask_type = { + .size = sizeof(struct ip_addrmask), + .name = "ip_addrmask", .parser = addrmask_parser, .dumper = addrmask_dumper }; @@ -72,17 +68,22 @@ static struct cf_user_type addrmask_type = { struct cf_section ipaccess_cf = { CF_TYPE(struct ipaccess_entry), CF_ITEMS { - CF_LOOKUP("Mode", PTR_TO(struct ipaccess_entry, allow), ((byte*[]) { "deny", "allow", NULL })), - CF_USER("IP", PTR_TO(struct ipaccess_entry, addr), &addrmask_type), + CF_LOOKUP("Mode", PTR_TO(struct ipaccess_entry, allow), ((char*[]) { "deny", "allow", NULL })), + CF_USER("IP", PTR_TO(struct ipaccess_entry, addr), &ip_addrmask_type), CF_END } }; +int ip_addrmask_match(struct ip_addrmask *am, u32 ip) +{ + return !((ip ^ am->addr) & am->mask); +} + int ipaccess_check(clist *l, u32 ip) { CLIST_FOR_EACH(struct ipaccess_entry *, a, *l) - if (! ((ip ^ a->addr.addr) & a->addr.mask)) + if (ip_addrmask_match(&a->addr, ip)) return a->allow; return 0; } @@ -103,13 +104,13 @@ static struct cf_section test_cf = { int main(int argc, char **argv) { cf_declare_section("T", &test_cf, 0); - if (cf_get_opt(argc, argv, CF_SHORT_OPTS, CF_NO_LONG_OPTS, NULL) != -1) + if (cf_getopt(argc, argv, CF_SHORT_OPTS, CF_NO_LONG_OPTS, NULL) != -1) die("Invalid arguments"); byte buf[256]; while (fgets(buf, sizeof(buf), stdin)) { - byte *c = strchr(buf, '\n'); + char *c = strchr(buf, '\n'); if (c) *c = 0; u32 ip;