diff options
| -rw-r--r-- | ChangeLog | 19 | ||||
| -rw-r--r-- | locale/setlocale.c | 28 | ||||
| -rw-r--r-- | manual/users.texi | 52 |
3 files changed, 85 insertions, 14 deletions
diff --git a/ChangeLog b/ChangeLog index c795869718..ef2c31e204 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,17 @@ 2001-06-28 Mark Kettenis <kettenis@gnu.org> + * manual/users.texi (Setting Groups): Correct initgroups + documentation. Add documentation for getgrouplist. + +2001-06-28 H.J. Lu <hjl@gnu.org> + + * locale/findlocale.c (locale_file_list): Renamed to ... + (_nl_locale_file_list): This. Make it extern. + (free_mem): Move to ... + * locale/setlocale.c (free_mem): Here. + +2001-06-28 Mark Kettenis <kettenis@gnu.org> + * sysdeps/mach/hurd/read.c: Include <hurd/fd.h>. (__libc_read): Don't call __pread. Use _hurd_fd_read directly instead. @@ -18,17 +30,16 @@ * posix/Makefile: Add rules to build and run tst-regex. -2001-06-20 Isamu Hasegawa <isamu@yamato.ibm.com> +2001-06-20 Isamu Hasegawa <isamu@yamato.ibm.com> * posix/regex.c (FREE_WCS_BUFFERS): New macro to free buffers. (re_search_2): invoke convert_mbs_to_wcs and FREE_WCS_BUFFERS. (wcs_re_match_2_internal): Check whether the wcs buffers need seting up or not, and skip seting up routin if not needed. -2001-06-26 Isamu Hasegawa <isamu@yamato.ibm.com> +2001-06-26 Isamu Hasegawa <isamu@yamato.ibm.com> - * posix/regex.c (count_mbs_length): Use binary search for - optimization. + * posix/regex.c (count_mbs_length): Use binary search for optimization. 2001-06-27 Ulrich Drepper <drepper@redhat.com> diff --git a/locale/setlocale.c b/locale/setlocale.c index c7848b9a5c..c5a8d49069 100644 --- a/locale/setlocale.c +++ b/locale/setlocale.c @@ -430,6 +430,7 @@ setlocale (int category, const char *locale) } } +extern struct loaded_l10nfile *_nl_locale_file_list[]; static void __attribute__ ((unused)) free_mem (void) @@ -440,17 +441,30 @@ free_mem (void) if (category != LC_ALL) { struct locale_data *here = *_nl_current[category]; + struct loaded_l10nfile *runp = _nl_locale_file_list[category]; /* If this category is already "C" don't do anything. */ - if (here == _nl_C[category]) - continue; + if (here != _nl_C[category]) + { + /* We have to be prepared that sometime later me still + might need the locale information. */ + setdata (category, _nl_C[category]); + setname (category, _nl_C_name); - /* We have to be prepared that sometime later me still might - need the locale information. */ - setdata (category, _nl_C[category]); - setname (category, _nl_C_name); + _nl_unload_locale (here); + } - _nl_unload_locale (here); + while (runp != NULL) + { + struct loaded_l10nfile *curr = runp; + struct locale_data *data = (struct locale_data *) runp->data; + + if (data != NULL && data != here && data != _nl_C[category]) + _nl_unload_locale (data); + runp = runp->next; + free ((char *) curr->filename); + free (curr); + } } setname (LC_ALL, _nl_C_name); diff --git a/manual/users.texi b/manual/users.texi index d13139c4c5..406e48bfb5 100644 --- a/manual/users.texi +++ b/manual/users.texi @@ -454,10 +454,10 @@ The calling process is not privileged. @comment grp.h @comment BSD -@deftypefun int initgroups (const char *@var{user}, gid_t @var{gid}) +@deftypefun int initgroups (const char *@var{user}, gid_t @var{group}) The @code{initgroups} function sets the process's supplementary group -IDs to be the normal default for the user name @var{user}. If @var{gid} -is not -1, it includes that group also. +IDs to be the normal default for the user name @var{user}. The group +@var{group} is automatically included. This function works by scanning the group database for all the groups @var{user} belongs to. It then calls @code{setgroups} with the list it @@ -467,6 +467,52 @@ The return values and error conditions are the same as for @code{setgroups}. @end deftypefun +If you are interested in the groups a particular user belongs to, but do +not want to change the process's supplementary group IDs, you can use +@code{getgrouplist}. To use @code{getgrouplist}, your programs should +include the header file @file{grp.h}. +@pindex grp.h + +@comment grp.h +@comment BSD +@deftypefun int getgrouplist (const char *@var{user}, gid_t @var{group}, gid_t *@var{groups}, int *@var{ngroups}) +The @code{getgrouplist} function scans the group database for all the +groups @var{user} belongs to. Up to *@var{ngroups} group IDs +corresponding to these groups are stored in the array @var{groups}; the +return value from the function is the number of group IDs actually +stored. If *@var{ngroups} is smaller than the total number of groups +found, then @code{getgrouplist} returns a value of @code{-1} and stores +the actual number of groups in *@var{ngroups}. The group @var{group} is +automatically included in the list of groups returned by +@code{getgrouplist}. + +Here's how to use @code{getgrouplist} to read all supplementary groups +for @var{user}: + +@smallexample +@group +gid_t * +supplementary_groups (char *user) +@{ + int ngroups = 16; + gid_t *groups + = (gid_t *) xmalloc (ngroups * sizeof (gid_t)); + struct passwd *pw = getpwnam (user); + + if (pw == NULL) + return NULL; + + if (getgrouplist (pw->pw_name, pw->pw_gid, groups, &ngroups) < 0) + @{ + groups = xrealloc (ngroups * sizeof (gid_t)); + getgrouplist (pw->pw_name, pw->pw_gid, groups, &ngroups); + @} + return groups; +@} +@end group +@end smallexample +@end deftypefun + @node Enable/Disable Setuid @section Enabling and Disabling Setuid Access |