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OpenBSD: add environment reading support (#819)
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@ -23,6 +23,7 @@ in the source distribution for its full text.
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#include <sys/sched.h>
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#include <uvm/uvmexp.h>
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/swap.h>
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#include <unistd.h>
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@ -34,6 +35,9 @@ in the source distribution for its full text.
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <time.h>
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#include <fcntl.h>
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#include <kvm.h>
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#include <limits.h>
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/*{
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#include "Action.h"
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@ -294,6 +298,48 @@ void Platform_setTasksValues(Meter* this) {
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}
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char* Platform_getProcessEnv(pid_t pid) {
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// TODO
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return NULL;
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char errbuf[_POSIX2_LINE_MAX];
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char *env;
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char **ptr;
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int count;
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kvm_t *kt;
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struct kinfo_proc *kproc;
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size_t capacity = 4096, size = 0;
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if ((kt = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf)) == NULL)
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return NULL;
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if ((kproc = kvm_getprocs(kt, KERN_PROC_PID, pid,
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sizeof(struct kinfo_proc), &count)) == NULL) {\
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(void) kvm_close(kt);
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return NULL;
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}
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if ((ptr = kvm_getenvv(kt, kproc, 0)) == NULL) {
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(void) kvm_close(kt);
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return NULL;
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}
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env = xMalloc(capacity);
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for (char **p = ptr; *p; p++) {
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size_t len = strlen(*p) + 1;
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if (size + len > capacity) {
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capacity *= 2;
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env = xRealloc(env, capacity);
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}
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strlcpy(env + size, *p, len);
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size += len;
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}
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if (size < 2 || env[size - 1] || env[size - 2]) {
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if (size + 2 < capacity)
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env = xRealloc(env, capacity + 2);
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env[size] = 0;
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env[size+1] = 0;
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}
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(void) kvm_close(kt);
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return env;
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}
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