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Add OpenBSD support to DetermineClientCmd()

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Uses kvm_getargv() from libkvm.

Signed-off-by: Matthieu Herrb <matthieu.herrb@laas.fr>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Matthieu Herrb 2012-01-02 13:23:59 +00:00 committed by Keith Packard
parent a55214d119
commit 6d6d4cb604
2 changed files with 49 additions and 1 deletions
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7
configure.ac
View File

@ -1024,6 +1024,13 @@ if test "x$RES" = xyes && test "x$CLIENTIDS" = xyes; then
else
CLIENTIDS=no
fi
if test "x$CLIENTIDS" = xyes; then
case $host_os in
openbsd*)
SYS_LIBS="$SYS_LIBS -lkvm"
;;
esac
fi
AC_MSG_RESULT([$CLIENTIDS])
AM_CONDITIONAL(CLIENTIDS, [test "x$CLIENTIDS" = xyes])

43
os/client.c
View File

@ -64,6 +64,15 @@
#include <procfs.h>
#endif
#ifdef __OpenBSD__
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/types.h>
#include <kvm.h>
#include <limits.h>
#endif
/**
* Try to determine a PID for a client from its connection
* information. This should be called only once when new client has
@ -172,7 +181,39 @@ void DetermineClientCmd(pid_t pid, const char **cmdname, const char **cmdargs)
if (cmdargs && sp)
*cmdargs = strdup(sp);
}
#else /* not Solaris */
#elif defined(__OpenBSD__)
/* on OpenBSD use kvm_getargv() */
{
kvm_t *kd;
char errbuf[_POSIX2_LINE_MAX];
char **argv;
struct kinfo_proc *kp;
size_t len = 0;
int i, n;
kd = kvm_open(NULL, NULL, NULL, KVM_NO_FILES, errbuf);
if (kd == NULL)
return;
kp = kvm_getprocs(kd, KERN_PROC_PID, pid, sizeof(struct kinfo_proc), &n);
if (n != 1)
return;
argv = kvm_getargv(kd, kp, 0);
*cmdname = strdup(argv[0]);
i = 1;
while (argv[i] != NULL) {
len += strlen(argv[i]) + 1;
i++;
}
*cmdargs = calloc(1, len);
i = 1;
while (argv[i] != NULL) {
strlcat(*cmdargs, argv[i], len);
strlcat(*cmdargs, " ", len);
i++;
}
kvm_close(kd);
}
#else /* Linux using /proc/pid/cmdline */
/* Check if /proc/pid/cmdline exists. It's not supported on all
* operating systems. */