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avoid int overflow in mem_get

This commit is contained in:
Doug MacEachern 2005-12-31 20:35:56 +00:00
parent b5785ebec1
commit 8e8cd18e16
1 changed files with 4 additions and 2 deletions
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6
src/os/darwin/darwin_sigar.c
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@ -215,17 +215,19 @@ int sigar_mem_get(sigar_t *sigar, sigar_mem_t *mem)
mach_msg_type_number_t count = sizeof(vmstat) / sizeof(integer_t); mach_msg_type_number_t count = sizeof(vmstat) / sizeof(integer_t);
#endif #endif
int mib[2]; int mib[2];
int value; unsigned long value;
size_t len = sizeof(value); size_t len;
mib[0] = CTL_HW; mib[0] = CTL_HW;
mib[1] = HW_PAGESIZE; mib[1] = HW_PAGESIZE;
len = sizeof(sigar->pagesize);
if (sysctl(mib, NMIB(mib), &sigar->pagesize, &len, NULL, 0) < 0) { if (sysctl(mib, NMIB(mib), &sigar->pagesize, &len, NULL, 0) < 0) {
return errno; return errno;
} }
mib[1] = HW_PHYSMEM; mib[1] = HW_PHYSMEM;
len = sizeof(value);
if (sysctl(mib, NMIB(mib), &value, &len, NULL, 0) < 0) { if (sysctl(mib, NMIB(mib), &value, &len, NULL, 0) < 0) {
return errno; return errno;
} }