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Add a new option "-f hints_file" to specify an alternate file instead of

Browse Source 
"/var/run/ld.so.hints".

Delete an incorrect statement about LD_LIBRARY_PATH from the manual
page.
This commit is contained in:
John Polstra 1996-10-10 23:14:23 +00:00
parent 932b06fca5
commit 7c6da7dcef
4 changed files with 74 additions and 74 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
gnu/usr.bin/ld/ldconfig/ldconfig.8
View File

@ -27,7 +27,7 @@
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.\" $Id: ldconfig.8,v 1.7 1995/06/24 10:08:43 asami Exp $
.\" $Id: ldconfig.8,v 1.8 1996/04/08 04:17:33 mpp Exp $
.\"
.Dd October 3, 1993
.Dt LDCONFIG 8
@ -38,6 +38,7 @@
.Sh SYNOPSIS
.Nm ldconfig
.Op Fl mrsv
.Op Fl f Ar hints_file
.Op Ar directory Ar ...
.Sh DESCRIPTION
.Nm
@ -82,15 +83,17 @@ is typically run as part of the boot sequence.
The following options recognized by
.Nm ldconfig:
.Bl -tag -width indent
.It Fl f Ar hints_file
Read and/or update the specified hints file, instead of
.Pa /var/run/ld.so.hints .
This option is provided primarily for testing.
.It Fl m
Instead of replacing the contents of
.Pa ld.so.hints
Instead of replacing the contents of the hints file
with those found in the directories specified,
.Dq merge
in new entries.
.It Fl r
Lists the current contents of
.Pa ld.so.hints
Lists the current contents of the hints file
on the standard output. The hints file will not be modified.
.It Fl s
Do not scan the built-in system directory
@ -104,8 +107,7 @@ space of
.Ev set-user-Id
programs. Whenever such a program is run,
.Nm ld.so
will only load shared libraries from the
.Pa ld.so.hints
will only load shared libraries from the hints
file. In particular, the
.Ev LD_LIBRARY_PATH
is not used to search for libraries. Thus, the role of ldconfig is dual. In
@ -114,11 +116,6 @@ specify the trusted collection of directories from which shared objects can
be safely loaded. It is presumed that the set of directories specified to
.Nm ldconfig
are under control of the system's administrator.
.Nm ld.so
further assists set-user-Id programs by erasing the
.Ev LD_LIBRARY_PATH
from the environment.
.Sh FILES
.Pa /var/run/ld.so.hints
.Sh SEE ALSO

53
gnu/usr.bin/ld/ldconfig/ldconfig.c
View File

@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: ldconfig.c,v 1.13 1996/07/12 19:08:34 jkh Exp $
* $Id: ldconfig.c,v 1.14 1996/10/01 01:31:51 peter Exp $
*/
#include <sys/param.h>
@ -57,6 +57,11 @@
#include "shlib.h"
#include "support.h"
#if DEBUG
/* test */
#undef _PATH_LD_HINTS
#define _PATH_LD_HINTS "./ld.so.hints"
#endif
#undef major
#undef minor
@ -67,6 +72,7 @@ static int verbose;
static int nostd;
static int justread;
static int merge;
static char *hints_file = _PATH_LD_HINTS;
struct shlib_list {
/* Internal list of shared libraries found */
@ -96,8 +102,11 @@ char *argv[];
int i, c;
int rval = 0;
while ((c = getopt(argc, argv, "mrsv")) != EOF) {
while ((c = getopt(argc, argv, "f:mrsv")) != EOF) {
switch (c) {
case 'f':
hints_file = optarg;
break;
case 'm':
merge = 1;
break;
@ -111,7 +120,7 @@ char *argv[];
verbose = 1;
break;
default:
errx(1, "Usage: %s [-mrsv] [dir ...]",
errx(1, "Usage: %s [-mrsv] [-f hints_file] [dir ...]",
__progname);
break;
}
@ -254,12 +263,6 @@ int dewey[], ndewey;
}
#if DEBUG
/* test */
#undef _PATH_LD_HINTS
#define _PATH_LD_HINTS "./ld.so.hints"
#endif
int
hinthash(cp, vmajor)
char *cp;
@ -366,7 +369,7 @@ buildhints()
errx(1, "str_index(%d) != strtab_sz(%d)", str_index, strtab_sz);
}
tmpfile = concat(_PATH_LD_HINTS, ".XXXXXX", "");
tmpfile = concat(hints_file, ".XXXXXX", "");
if ((tmpfile = mktemp(tmpfile)) == NULL) {
warn("%s", tmpfile);
return -1;
@ -374,37 +377,37 @@ buildhints()
umask(0); /* Create with exact permissions */
if ((fd = open(tmpfile, O_RDWR|O_CREAT|O_TRUNC, 0444)) == -1) {
warn("%s", _PATH_LD_HINTS);
warn("%s", hints_file);
return -1;
}
if (write(fd, &hdr, sizeof(struct hints_header)) !=
sizeof(struct hints_header)) {
warn("%s", _PATH_LD_HINTS);
warn("%s", hints_file);
return -1;
}
if (write(fd, blist, hdr.hh_nbucket * sizeof(struct hints_bucket)) !=
hdr.hh_nbucket * sizeof(struct hints_bucket)) {
warn("%s", _PATH_LD_HINTS);
warn("%s", hints_file);
return -1;
}
if (write(fd, strtab, strtab_sz) != strtab_sz) {
warn("%s", _PATH_LD_HINTS);
warn("%s", hints_file);
return -1;
}
if (close(fd) != 0) {
warn("%s", _PATH_LD_HINTS);
warn("%s", hints_file);
return -1;
}
/* Install it */
if (unlink(_PATH_LD_HINTS) != 0 && errno != ENOENT) {
warn("%s", _PATH_LD_HINTS);
if (unlink(hints_file) != 0 && errno != ENOENT) {
warn("%s", hints_file);
return -1;
}
if (rename(tmpfile, _PATH_LD_HINTS) != 0) {
warn("%s", _PATH_LD_HINTS);
if (rename(tmpfile, hints_file) != 0) {
warn("%s", hints_file);
return -1;
}
@ -423,8 +426,8 @@ readhints()
struct shlib_list *shp;
int i;
if ((fd = open(_PATH_LD_HINTS, O_RDONLY, 0)) == -1) {
warn("%s", _PATH_LD_HINTS);
if ((fd = open(hints_file, O_RDONLY, 0)) == -1) {
warn("%s", hints_file);
return -1;
}
@ -432,14 +435,14 @@ readhints()
addr = mmap(0, msize, PROT_READ, MAP_COPY, fd, 0);
if (addr == (caddr_t)-1) {
warn("%s", _PATH_LD_HINTS);
warn("%s", hints_file);
return -1;
}
hdr = (struct hints_header *)addr;
if (HH_BADMAG(*hdr)) {
warnx("%s: Bad magic: %o",
_PATH_LD_HINTS, hdr->hh_magic);
hints_file, hdr->hh_magic);
return -1;
}
@ -454,7 +457,7 @@ readhints()
PROT_READ, MAP_COPY|MAP_FIXED,
fd, msize) != (caddr_t)(addr+msize)) {
warn("%s", _PATH_LD_HINTS);
warn("%s", hints_file);
return -1;
}
}
@ -499,7 +502,7 @@ listhints()
struct shlib_list *shp;
int i;
printf("%s:\n", _PATH_LD_HINTS);
printf("%s:\n", hints_file);
printf("\tsearch directories: %s\n", dir_list);
for (i = 0, shp = shlib_head; shp; i++, shp = shp->next)

21
sbin/ldconfig/ldconfig.8
View File

@ -27,7 +27,7 @@
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.\" $Id: ldconfig.8,v 1.7 1995/06/24 10:08:43 asami Exp $
.\" $Id: ldconfig.8,v 1.8 1996/04/08 04:17:33 mpp Exp $
.\"
.Dd October 3, 1993
.Dt LDCONFIG 8
@ -38,6 +38,7 @@
.Sh SYNOPSIS
.Nm ldconfig
.Op Fl mrsv
.Op Fl f Ar hints_file
.Op Ar directory Ar ...
.Sh DESCRIPTION
.Nm
@ -82,15 +83,17 @@ is typically run as part of the boot sequence.
The following options recognized by
.Nm ldconfig:
.Bl -tag -width indent
.It Fl f Ar hints_file
Read and/or update the specified hints file, instead of
.Pa /var/run/ld.so.hints .
This option is provided primarily for testing.
.It Fl m
Instead of replacing the contents of
.Pa ld.so.hints
Instead of replacing the contents of the hints file
with those found in the directories specified,
.Dq merge
in new entries.
.It Fl r
Lists the current contents of
.Pa ld.so.hints
Lists the current contents of the hints file
on the standard output. The hints file will not be modified.
.It Fl s
Do not scan the built-in system directory
@ -104,8 +107,7 @@ space of
.Ev set-user-Id
programs. Whenever such a program is run,
.Nm ld.so
will only load shared libraries from the
.Pa ld.so.hints
will only load shared libraries from the hints
file. In particular, the
.Ev LD_LIBRARY_PATH
is not used to search for libraries. Thus, the role of ldconfig is dual. In
@ -114,11 +116,6 @@ specify the trusted collection of directories from which shared objects can
be safely loaded. It is presumed that the set of directories specified to
.Nm ldconfig
are under control of the system's administrator.
.Nm ld.so
further assists set-user-Id programs by erasing the
.Ev LD_LIBRARY_PATH
from the environment.
.Sh FILES
.Pa /var/run/ld.so.hints
.Sh SEE ALSO

53
sbin/ldconfig/ldconfig.c
View File

@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: ldconfig.c,v 1.13 1996/07/12 19:08:34 jkh Exp $
* $Id: ldconfig.c,v 1.14 1996/10/01 01:31:51 peter Exp $
*/
#include <sys/param.h>
@ -57,6 +57,11 @@
#include "shlib.h"
#include "support.h"
#if DEBUG
/* test */
#undef _PATH_LD_HINTS
#define _PATH_LD_HINTS "./ld.so.hints"
#endif
#undef major
#undef minor
@ -67,6 +72,7 @@ static int verbose;
static int nostd;
static int justread;
static int merge;
static char *hints_file = _PATH_LD_HINTS;
struct shlib_list {
/* Internal list of shared libraries found */
@ -96,8 +102,11 @@ char *argv[];
int i, c;
int rval = 0;
while ((c = getopt(argc, argv, "mrsv")) != EOF) {
while ((c = getopt(argc, argv, "f:mrsv")) != EOF) {
switch (c) {
case 'f':
hints_file = optarg;
break;
case 'm':
merge = 1;
break;
@ -111,7 +120,7 @@ char *argv[];
verbose = 1;
break;
default:
errx(1, "Usage: %s [-mrsv] [dir ...]",
errx(1, "Usage: %s [-mrsv] [-f hints_file] [dir ...]",
__progname);
break;
}
@ -254,12 +263,6 @@ int dewey[], ndewey;
}
#if DEBUG
/* test */
#undef _PATH_LD_HINTS
#define _PATH_LD_HINTS "./ld.so.hints"
#endif
int
hinthash(cp, vmajor)
char *cp;
@ -366,7 +369,7 @@ buildhints()
errx(1, "str_index(%d) != strtab_sz(%d)", str_index, strtab_sz);
}
tmpfile = concat(_PATH_LD_HINTS, ".XXXXXX", "");
tmpfile = concat(hints_file, ".XXXXXX", "");
if ((tmpfile = mktemp(tmpfile)) == NULL) {
warn("%s", tmpfile);
return -1;
@ -374,37 +377,37 @@ buildhints()
umask(0); /* Create with exact permissions */
if ((fd = open(tmpfile, O_RDWR|O_CREAT|O_TRUNC, 0444)) == -1) {
warn("%s", _PATH_LD_HINTS);
warn("%s", hints_file);
return -1;
}
if (write(fd, &hdr, sizeof(struct hints_header)) !=
sizeof(struct hints_header)) {
warn("%s", _PATH_LD_HINTS);
warn("%s", hints_file);
return -1;
}
if (write(fd, blist, hdr.hh_nbucket * sizeof(struct hints_bucket)) !=
hdr.hh_nbucket * sizeof(struct hints_bucket)) {
warn("%s", _PATH_LD_HINTS);
warn("%s", hints_file);
return -1;
}
if (write(fd, strtab, strtab_sz) != strtab_sz) {
warn("%s", _PATH_LD_HINTS);
warn("%s", hints_file);
return -1;
}
if (close(fd) != 0) {
warn("%s", _PATH_LD_HINTS);
warn("%s", hints_file);
return -1;
}
/* Install it */
if (unlink(_PATH_LD_HINTS) != 0 && errno != ENOENT) {
warn("%s", _PATH_LD_HINTS);
if (unlink(hints_file) != 0 && errno != ENOENT) {
warn("%s", hints_file);
return -1;
}
if (rename(tmpfile, _PATH_LD_HINTS) != 0) {
warn("%s", _PATH_LD_HINTS);
if (rename(tmpfile, hints_file) != 0) {
warn("%s", hints_file);
return -1;
}
@ -423,8 +426,8 @@ readhints()
struct shlib_list *shp;
int i;
if ((fd = open(_PATH_LD_HINTS, O_RDONLY, 0)) == -1) {
warn("%s", _PATH_LD_HINTS);
if ((fd = open(hints_file, O_RDONLY, 0)) == -1) {
warn("%s", hints_file);
return -1;
}
@ -432,14 +435,14 @@ readhints()
addr = mmap(0, msize, PROT_READ, MAP_COPY, fd, 0);
if (addr == (caddr_t)-1) {
warn("%s", _PATH_LD_HINTS);
warn("%s", hints_file);
return -1;
}
hdr = (struct hints_header *)addr;
if (HH_BADMAG(*hdr)) {
warnx("%s: Bad magic: %o",
_PATH_LD_HINTS, hdr->hh_magic);
hints_file, hdr->hh_magic);
return -1;
}
@ -454,7 +457,7 @@ readhints()
PROT_READ, MAP_COPY|MAP_FIXED,
fd, msize) != (caddr_t)(addr+msize)) {
warn("%s", _PATH_LD_HINTS);
warn("%s", hints_file);
return -1;
}
}
@ -499,7 +502,7 @@ listhints()
struct shlib_list *shp;
int i;
printf("%s:\n", _PATH_LD_HINTS);
printf("%s:\n", hints_file);
printf("\tsearch directories: %s\n", dir_list);
for (i = 0, shp = shlib_head; shp; i++, shp = shp->next)