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Use pst_highestfd from pstat_getproc() on HP-UX.

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This commit is contained in:
Todd C. Miller
2013-03-01 13:01:37 -05:00
parent 3e68433839
commit f524c515e5
1 changed files with 34 additions and 17 deletions
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29
compat/closefrom.c
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@@ -29,10 +29,14 @@
# endif
#endif /* STDC_HEADERS */
#include <fcntl.h>
#ifdef HAVE_DIRENT_H
#ifdef HAVE_PSTAT_GETPROC
# include <sys/param.h>
# include <sys/pstat.h>
#else
# ifdef HAVE_DIRENT_H
# include <dirent.h>
# define NAMLEN(dirent) strlen((dirent)->d_name)
#else
# else
# define dirent direct
# define NAMLEN(dirent) (dirent)->d_namlen
# ifdef HAVE_SYS_NDIR_H
@@ -44,6 +48,7 @@
# ifdef HAVE_NDIR_H
# include <ndir.h>
# endif
# endif
#endif
#include "missing.h"
@@ -84,15 +89,28 @@ closefrom_fallback(int lowfd)
* Close all file descriptors greater than or equal to lowfd.
* We try the fast way first, falling back on the slow method.
*/
#ifdef HAVE_FCNTL_CLOSEM
#if defined(HAVE_FCNTL_CLOSEM)
void
closefrom(int lowfd)
{
if (fcntl(lowfd, F_CLOSEM, 0) == -1)
closefrom_fallback(lowfd);
}
#else
# ifdef HAVE_DIRFD
#elif defined(HAVE_PSTAT_GETPROC)
void
closefrom(int lowfd)
{
struct pst_status pstat;
int fd;
if (pstat_getproc(&pstat, sizeof(pstat), 0, getpid()) != -1) {
for (fd = lowfd; fd <= pstat.pst_highestfd; fd++)
(void) close(fd);
} else {
closefrom_fallback(lowfd);
}
}
#elif defined(HAVE_DIRFD)
void
closefrom(int lowfd)
{
@@ -113,5 +131,4 @@ closefrom(int lowfd)
} else
closefrom_fallback(lowfd);
}
#endif /* HAVE_DIRFD */
#endif /* HAVE_FCNTL_CLOSEM */