Move sysctl parser to a separate file
* sysctl.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* system.c: Move sys_sysctl and related code to sysctl.c.
diff --git a/sysctl.c b/sysctl.c
new file mode 100644
index 0000000..70cc5d9
--- /dev/null
+++ b/sysctl.c
@@ -0,0 +1,170 @@
+#include "defs.h"
+
+#include <linux/sysctl.h>
+
+#include "xlat/sysctl_root.h"
+#include "xlat/sysctl_kern.h"
+#include "xlat/sysctl_vm.h"
+#include "xlat/sysctl_net.h"
+#include "xlat/sysctl_net_core.h"
+#include "xlat/sysctl_net_unix.h"
+#include "xlat/sysctl_net_ipv4.h"
+#include "xlat/sysctl_net_ipv4_route.h"
+#include "xlat/sysctl_net_ipv4_conf.h"
+#include "xlat/sysctl_net_ipv6.h"
+#include "xlat/sysctl_net_ipv6_route.h"
+
+int
+sys_sysctl(struct tcb *tcp)
+{
+ struct __sysctl_args info;
+ int *name;
+ unsigned long size;
+
+ if (umove(tcp, tcp->u_arg[0], &info) < 0)
+ return printargs(tcp);
+
+ size = sizeof(int) * (unsigned long) info.nlen;
+ name = (size / sizeof(int) != (unsigned long) info.nlen) ? NULL : malloc(size);
+ if (name == NULL ||
+ umoven(tcp, (unsigned long) info.name, size, (char *) name) < 0) {
+ free(name);
+ if (entering(tcp))
+ tprintf("{%p, %d, %p, %p, %p, %lu}",
+ info.name, info.nlen, info.oldval,
+ info.oldlenp, info.newval, (unsigned long)info.newlen);
+ return 0;
+ }
+
+ if (entering(tcp)) {
+ unsigned int cnt = 0, max_cnt;
+
+ tprints("{{");
+
+ if (info.nlen == 0)
+ goto out;
+ printxval(sysctl_root, name[0], "CTL_???");
+ ++cnt;
+
+ if (info.nlen == 1)
+ goto out;
+ switch (name[0]) {
+ case CTL_KERN:
+ tprints(", ");
+ printxval(sysctl_kern, name[1], "KERN_???");
+ ++cnt;
+ break;
+ case CTL_VM:
+ tprints(", ");
+ printxval(sysctl_vm, name[1], "VM_???");
+ ++cnt;
+ break;
+ case CTL_NET:
+ tprints(", ");
+ printxval(sysctl_net, name[1], "NET_???");
+ ++cnt;
+
+ if (info.nlen == 2)
+ goto out;
+ switch (name[1]) {
+ case NET_CORE:
+ tprints(", ");
+ printxval(sysctl_net_core, name[2],
+ "NET_CORE_???");
+ break;
+ case NET_UNIX:
+ tprints(", ");
+ printxval(sysctl_net_unix, name[2],
+ "NET_UNIX_???");
+ break;
+ case NET_IPV4:
+ tprints(", ");
+ printxval(sysctl_net_ipv4, name[2],
+ "NET_IPV4_???");
+
+ if (info.nlen == 3)
+ goto out;
+ switch (name[2]) {
+ case NET_IPV4_ROUTE:
+ tprints(", ");
+ printxval(sysctl_net_ipv4_route,
+ name[3],
+ "NET_IPV4_ROUTE_???");
+ break;
+ case NET_IPV4_CONF:
+ tprints(", ");
+ printxval(sysctl_net_ipv4_conf,
+ name[3],
+ "NET_IPV4_CONF_???");
+ break;
+ default:
+ goto out;
+ }
+ break;
+ case NET_IPV6:
+ tprints(", ");
+ printxval(sysctl_net_ipv6, name[2],
+ "NET_IPV6_???");
+
+ if (info.nlen == 3)
+ goto out;
+ switch (name[2]) {
+ case NET_IPV6_ROUTE:
+ tprints(", ");
+ printxval(sysctl_net_ipv6_route,
+ name[3],
+ "NET_IPV6_ROUTE_???");
+ break;
+ default:
+ goto out;
+ }
+ break;
+ default:
+ goto out;
+ }
+ break;
+ default:
+ goto out;
+ }
+ out:
+ max_cnt = info.nlen;
+ if (abbrev(tcp) && max_cnt > max_strlen)
+ max_cnt = max_strlen;
+ while (cnt < max_cnt)
+ tprintf(", %x", name[cnt++]);
+ if (cnt < (unsigned) info.nlen)
+ tprints(", ...");
+ tprintf("}, %d, ", info.nlen);
+ } else {
+ size_t oldlen = 0;
+ if (info.oldval == NULL) {
+ tprints("NULL");
+ } else if (umove(tcp, (long)info.oldlenp, &oldlen) >= 0
+ && info.nlen >= 2
+ && ((name[0] == CTL_KERN
+ && (name[1] == KERN_OSRELEASE
+ || name[1] == KERN_OSTYPE
+#ifdef KERN_JAVA_INTERPRETER
+ || name[1] == KERN_JAVA_INTERPRETER
+#endif
+#ifdef KERN_JAVA_APPLETVIEWER
+ || name[1] == KERN_JAVA_APPLETVIEWER
+#endif
+ )))) {
+ printpath(tcp, (size_t)info.oldval);
+ } else {
+ tprintf("%p", info.oldval);
+ }
+ tprintf(", %lu, ", (unsigned long)oldlen);
+ if (info.newval == NULL)
+ tprints("NULL");
+ else if (syserror(tcp))
+ tprintf("%p", info.newval);
+ else
+ printpath(tcp, (size_t)info.newval);
+ tprintf(", %lu", (unsigned long)info.newlen);
+ }
+
+ free(name);
+ return 0;
+}