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authorRoland McGrath <roland@gnu.org>1996-05-29 04:48:04 +0000
committerRoland McGrath <roland@gnu.org>1996-05-29 04:48:04 +0000
commit0200214b288810fc261b0b65c32f7068fcfa9b40 (patch)
treea488a0a435ccf62b0870121b839b08de0d37a9b5 /login/getutid_r.c
parent215dbbb1508bd6b86211112dd5ddaf9bd2290690 (diff)
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Tue May 28 04:38:10 1996 Ulrich Drepper <drepper@cygnus.com>
	* limits.h: Change MB_LEN_MAX to 6.  A 31-bit ISO 10646
	character in UTF-8 encoding has that many bytes.

	* locale/langinfo.h: New element _NL_CTYPE_MB_CUR_MAX.
	* locale/categories.def: Add description of field _NL_CTYPE_MB_CUR_MAX.
	* locale/Makefile (routines): Add mb_cur_max.
	* locale/mb_cur_max.c: New file.  This function gets called
	when the macro MB_CUR_MAX is used.
	* locale/C-ctype.c: Initialize new mb_cur_max field.
	* locale/localeinfo.h: Change magic value because of incompatible
        change.
	* locale/programs/ld-ctype.c: Determine value of mb_cur_max
        according to current character set and write it out with the rest.
	* stdlib/stdlib.h (MB_CUR_MAX): Not constant anymore.  Get value
        according to currently used locale for catefory LC_CTYPE by
        calling the function __ctype_get_mb_cur_max.

Tue May 28 03:27:46 1996  Ulrich Drepper  <drepper@cygnus.com>

	* FAQ:  Fix some typos.
	Tell that for Linux the kernel header files are necessary.

	* PROJECTS: New file.  List of open jobs for glibc.
	* Makefile (distribute): Add PROJECTS.

	* crypt/GNUmakefile (headers): New variable.  Mention crypt.h.
	* crypt/crypt.h: Header for crypt functions.

	* elf/elf.h: Add some new constants from recent Cygnus ELF
	header files.

	* login/getutid_r.c: Test for correct type.
	Don't depend on ut_type and ut_id unless _HAVE_UT_TYPE and
	_HAVE_UT_ID resp. are defined.
	Make really compliant with specification.

	* login/getutline_r.c, login/pututline_r.c: Don't depend on
	ut_type and ut_id unless _HAVE_UT_TYPE and _HAVE_UT_ID resp. are
	defined.
	Make really compliant with specification.

	* login/setutent_r.c: Don't depend on ut_type and ut_id unless
	_HAVE_UT_TYPE and _HAVE_UT_ID resp. are defined.

	* login/login.c, login/logout.c, login/logwtmp.c: Complete
	rewrite.  Now based on getut*/setut* functions.

	* stdlib/strtol.c: Undo changes of Wed May 22 01:48:54 1996.
	This prevented using this file in other GNU packages.

	* sysdeps/gnu/utmpbits.h: Define _HAVE_UT_TYPE, _HAVE_UT_ID,
	and _HAVE_UT_TV because struct utmp has these members.

	* sysdeps/libm-i387/e_exp.S: Correct exp(+-Inf) case.

	* utmp.h: New file.  Wrapper around login/utmp.h.

	* elf/dl-error.c (struct catch): New type.
	(catch): New static variable, struct catch *.
	(catch_env, signalled_errstring, signalled_objname): Variables removed.
	(_dl_signal_error): If CATCH is non-null, set its errstring and
	objname members and jump to CATCH->env.  If it is null, call
	_dl_sysdep_fatal with a standard message.
	* elf/rtld.c (dl_main): Explode `doit' function into dl_main's body.
	No longer use _dl_catch_error.
Diffstat (limited to 'login/getutid_r.c')
-rw-r--r--login/getutid_r.c34
1 files changed, 32 insertions, 2 deletions
diff --git a/login/getutid_r.c b/login/getutid_r.c
index 351f96e65e..02013c29b9 100644
--- a/login/getutid_r.c
+++ b/login/getutid_r.c
@@ -18,6 +18,7 @@ not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
 #include <errno.h>
+#include <string.h>
 #include <unistd.h>
 #include <utmp.h>
 
@@ -28,6 +29,18 @@ int
 getutid_r (const struct utmp *id, struct utmp **utmp,
 	   struct utmp_data *utmp_data)
 {
+#if (_HAVE_UT_ID - 0) && (_HAVE_UT_TYPE - 0)
+  /* Test whether ID has any of the legal types.  */
+  if (id->ut_type != RUN_LVL && id->ut_type != BOOT_TIME
+      && id->ut_type != OLD_TIME && id->ut_type != NEW_TIME
+      && id->ut_type != INIT_PROCESS && id->ut_type != LOGIN_PROCESS
+      && id->ut_type != USER_PROCESS && id->ut_type != DEAD_PROCESS)
+    /* No, using '<' and '>' for the test is not possible.  */
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
   /* Open utmp file if not already done.  */
   if (utmp_data->ut_fd == -1)
     {
@@ -40,7 +53,7 @@ getutid_r (const struct utmp *id, struct utmp **utmp,
   if (lseek (utmp_data->ut_fd, utmp_data->loc_utmp, SEEK_SET) == -1)
     return -1;
 
-  do
+  while (1)
     {
       /* Read the next entry.  */
       if (read (utmp_data->ut_fd, &utmp_data->ubuf, sizeof (struct utmp))
@@ -52,10 +65,27 @@ getutid_r (const struct utmp *id, struct utmp **utmp,
 
       /* Update position pointer.  */
       utmp_data->loc_utmp += sizeof (struct utmp);
+
+      if ((id->ut_type == RUN_LVL || id->ut_type == BOOT_TIME
+	   || id->ut_type == OLD_TIME || id->ut_type == NEW_TIME)
+	  && id->ut_type != utmp_data->ubuf.ut_type)
+	/* Stop at the next entry with type RUN_LVL, BOOT_TIME,
+	   OLD_TIME, or NEW_TIME.  */
+	break;
+
+      if ((id->ut_type == INIT_PROCESS || id->ut_type == LOGIN_PROCESS
+	   || id->ut_type == USER_PROCESS || id->ut_type == DEAD_PROCESS)
+	  && strncmp (id->ut_id, utmp_data->ubuf.ut_id, sizeof id->ut_id) == 0)
+	/* Stop at the next entry with the specified ID and with type
+	   INIT_PROCESS, LOGIN_PROCESS, USER_PROCESS, or DEAD_PROCESS.  */
+	break;
     }
-  while (id->ut_type != utmp_data->ubuf.ut_type);
 
   *utmp = &utmp_data->ubuf;
 
   return 0;
+#else	/* !_HAVE_UT_ID && !_HAVE_UT_TYPE */
+  errno = ENOSYS;
+  return -1;
+#endif
 }