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--- /dev/null Thu Feb 10 20:03:15 2000
+++ src/freebsd-sysctl.c Thu Feb 10 20:03:40 2000
@@ -0,0 +1,98 @@
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/sysctl.h>
+#include <sys/ucred.h>
+
+#include <netinet/in.h>
+
+int
+k_open(void) {
+
+ return 0;
+}
+
+#ifdef INET6
+int k_getuid(struct sockaddr *faddr, int fport, struct sockaddr *laddr,
+ int lport, int *uid) {
+ struct sockaddr_in sin[2];
+ struct sockaddr_in6 sin6[2];
+ struct ucred uc;
+ size_t oldlen = sizeof(uc);
+ struct sockaddr *sa;
+ int salen;
+ char *ctlname;
+
+ if (faddr->sa_family != laddr->sa_family)
+ return -1;
+ if (faddr->sa_family == AF_INET) {
+ sin[0].sin_family = sin[1].sin_family = AF_INET;
+ sin[0].sin_len = sin[1].sin_len = sizeof(struct sockaddr_in);
+ memcpy(&sin[0].sin_addr,
+ &((struct sockaddr_in *)laddr)->sin_addr,
+ sizeof(struct in_addr));
+ memcpy(&sin[1].sin_addr,
+ &((struct sockaddr_in *)faddr)->sin_addr,
+ sizeof(struct in_addr));
+ sin[0].sin_port = (u_int16_t)lport;
+ sin[1].sin_port = (u_int16_t)fport;
+ sa = (struct sockaddr *)sin;
+ salen = sizeof(sin);
+ ctlname = "net.inet.tcp.getcred";
+ } else if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)faddr)->sin6_addr)) {
+ sin[0].sin_family = sin[1].sin_family = AF_INET;
+ sin[0].sin_len = sin[1].sin_len = sizeof(struct sockaddr_in);
+ memcpy(&sin[0].sin_addr,
+ &((struct sockaddr_in6 *)laddr)->sin6_addr.s6_addr[12],
+ sizeof(struct in_addr));
+ memcpy(&sin[1].sin_addr,
+ &((struct sockaddr_in6 *)faddr)->sin6_addr.s6_addr[12],
+ sizeof(struct in_addr));
+ sin[0].sin_port = (u_int16_t)lport;
+ sin[1].sin_port = (u_int16_t)fport;
+ sa = (struct sockaddr *)sin;
+ salen = sizeof(sin);
+ ctlname = "net.inet.tcp.getcred";
+ } else {
+ sin6[0].sin6_family = sin6[1].sin6_family = AF_INET6;
+ sin6[0].sin6_len = sin6[1].sin6_len
+ = sizeof(struct sockaddr_in6);
+ memcpy(&sin6[0].sin6_addr,
+ &((struct sockaddr_in6 *)laddr)->sin6_addr,
+ sizeof(struct in6_addr));
+ memcpy(&sin6[1].sin6_addr,
+ &((struct sockaddr_in6 *)faddr)->sin6_addr,
+ sizeof(struct in6_addr));
+ sin6[0].sin6_port = (u_int16_t)lport;
+ sin6[1].sin6_port = (u_int16_t)fport;
+ sa = (struct sockaddr *)sin6;
+ salen = sizeof(sin6);
+ ctlname = "net.inet6.tcp6.getcred";
+ }
+
+ if (sysctlbyname(ctlname, &uc, &oldlen, sa, salen))
+ return -1;
+
+ *uid = uc.cr_uid;
+ return 0;
+}
+#else
+int k_getuid(struct in_addr *faddr, int fport, struct in_addr *laddr,
+ int lport, int *uid) {
+ struct sockaddr_in sin[2];
+ struct ucred uc;
+ size_t oldlen = sizeof(uc);
+
+ sin[0].sin_addr.s_addr = laddr->s_addr;
+ sin[1].sin_addr.s_addr = faddr->s_addr;
+ sin[0].sin_port = (u_short)lport;
+ sin[1].sin_port = (u_short)fport;
+
+ if (sysctlbyname("net.inet.tcp.getcred", &uc, &oldlen, sin,
+ sizeof(sin)))
+ return -1;
+
+ *uid = uc.cr_uid;
+ return 0;
+}
+#endif
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