| 37 | #include "libutil.h" |
| 38 | |
| 39 | struct kinfo_vmobject * |
| 40 | kinfo_getvmobject(int *cntp) |
| 41 | { |
| 42 | char *buf, *bp, *ep; |
| 43 | struct kinfo_vmobject *kvo, *list, *kp; |
| 44 | size_t len; |
| 45 | int cnt, i; |
| 46 | |
| 47 | buf = NULL; |
| 48 | for (i = 0; i < 3; i++) { |
| 49 | if (sysctlbyname("vm.objects", NULL, &len, NULL, 0) < 0) { |
| 50 | free(buf); |
| 51 | return (NULL); |
| 52 | } |
| 53 | buf = reallocf(buf, len); |
| 54 | if (buf == NULL) |
| 55 | return (NULL); |
| 56 | if (sysctlbyname("vm.objects", buf, &len, NULL, 0) == 0) |
| 57 | goto unpack; |
| 58 | if (errno != ENOMEM) { |
| 59 | free(buf); |
| 60 | return (NULL); |
| 61 | } |
| 62 | } |
| 63 | free(buf); |
| 64 | return (NULL); |
| 65 | |
| 66 | unpack: |
| 67 | /* Count items */ |
| 68 | cnt = 0; |
| 69 | bp = buf; |
| 70 | ep = buf + len; |
| 71 | while (bp < ep) { |
| 72 | kvo = (struct kinfo_vmobject *)(uintptr_t)bp; |
| 73 | bp += kvo->kvo_structsize; |
| 74 | cnt++; |
| 75 | } |
| 76 | |
| 77 | list = calloc(cnt, sizeof(*list)); |
| 78 | if (list == NULL) { |
| 79 | free(buf); |
| 80 | return (NULL); |
| 81 | } |
| 82 | |
| 83 | /* Unpack */ |
| 84 | bp = buf; |
| 85 | kp = list; |
| 86 | while (bp < ep) { |
| 87 | kvo = (struct kinfo_vmobject *)(uintptr_t)bp; |
| 88 | memcpy(kp, kvo, kvo->kvo_structsize); |
| 89 | bp += kvo->kvo_structsize; |
| 90 | kp->kvo_structsize = sizeof(*kp); |
| 91 | kp++; |
| 92 | } |
| 93 | free(buf); |
| 94 | *cntp = cnt; |
| 95 | return (list); |
| 96 | } |
nothing calls this directly
no test coverage detected