1 #include <sys/cdefs.h> 2 #ifdef __FBSDID 3 __FBSDID("$FreeBSD: head/lib/libutil/kinfo_getvmmap.c 186512 2008-12-27 11:12:23Z rwatson $"); 4 #endif 5 __RCSID("$NetBSD: kinfo_getvmmap.c,v 1.4 2017/06/14 12:24:51 kamil Exp $"); 6 7 #include <sys/param.h> 8 #include <sys/sysctl.h> 9 #include <stdlib.h> 10 #include <string.h> 11 #include <util.h> 12 #include <uvm/uvm_param.h> 13 14 struct kinfo_vmentry * 15 kinfo_getvmmap(pid_t pid, size_t *cntp) 16 { 17 int mib[5]; 18 int error; 19 size_t len; 20 struct kinfo_vmentry *kiv; 21 22 *cntp = 0; 23 len = 0; 24 mib[0] = CTL_VM; 25 mib[1] = VM_PROC; 26 mib[2] = VM_PROC_MAP; 27 mib[3] = pid; 28 mib[4] = sizeof(*kiv); 29 30 error = sysctl(mib, (u_int)__arraycount(mib), NULL, &len, NULL, 0); 31 if (error) 32 return NULL; 33 34 len = len * 4 / 3; 35 36 kiv = malloc(len); 37 if (kiv == NULL) 38 return NULL; 39 40 error = sysctl(mib, (u_int)__arraycount(mib), kiv, &len, NULL, 0); 41 if (error) { 42 free(kiv); 43 return NULL; 44 } 45 46 *cntp = len / sizeof(*kiv); 47 return kiv; /* Caller must free() return value */ 48 } 49