(SIGAR-131) use pstat_getfile2 in sigar_proc_fd_get on HP/UX 11iv2+

Signed-off-by: Doug MacEachern <dougm@hyperic.com>

src/os/hpux/hpux_sigar.c

@@ -16,6 +16,10 @@
  * USA.
  */
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include "sigar.h"
 #include "sigar_private.h"
 #include "sigar_util.h"
@@ -416,14 +420,30 @@ int sigar_proc_fd_get(sigar_t *sigar, sigar_pid_t pid,
 {
     struct pst_status status;
     int idx, i, n;
+#ifdef HAVE_STRUCT_PST_FILEINFO2
+    struct pst_fileinfo2 psf[16];
+#else
     struct pst_fileinfo psf[16];
+#endif
 
     procfd->total = 0;
 
     if (pstat_getproc(&status, sizeof(status), 0, pid) == -1) {
         return errno;
     }
 
+    /* HPUX 11.31 removed the deprecated pstat_getfile call */
+#ifdef HAVE_STRUCT_PST_FILEINFO2
+    idx = status.pst_idx;
+
+    while ((n = pstat_getfile2(psf, sizeof(psf[0]),
+                               sizeof(psf)/sizeof(psf[0]),
+                               idx, pid)) > 0)
+    {
+        procfd->total += n;
+        idx = psf[n-1].psf_fd;
+    }
+#else
     /* man pstat_getfile for index splaination */
     idx = (status.pst_idx << 16) | (0 & 0xffff);
 
@@ -434,6 +454,7 @@ int sigar_proc_fd_get(sigar_t *sigar, sigar_pid_t pid,
         procfd->total += n;
         idx = psf[n-1].psf_idx + 1;
     }
+#endif
 
     if (n == -1) {
         return errno;