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wall: check -g GID 

Based on comments from Sami Kerola.

Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Karel Zak 2016-12-02 14:11:20 +01:00
parent b439065634
commit e0383e3e88
2 changed files with 8 additions and 2 deletions
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2
bash-completion/wall
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@ -19,7 +19,7 @@ _wall_module()
esac
case $cur in
-*)
OPTS="--nobanner --timeout --version --help"
OPTS="--group --nobanner --timeout --version --help"
COMPREPLY=( $(compgen -W "${OPTS[*]}" -- $cur) )
return 0
;;

8
term-utils/wall.c
View File

@ -109,10 +109,16 @@ struct group_workspace {
static gid_t get_group_gid(const char *optarg)
{
struct group *gr;
gid_t gid;
if ((gr = getgrnam(optarg)))
return gr->gr_gid;
return strtou64_or_err(optarg, _("invalid group argument"));
gid = strtou32_or_err(optarg, _("invalid group argument"));
if (!getgrgid(gid))
errx(EXIT_FAILURE, _("%s: unknown gid"), optarg);
return gid;
}
static struct group_workspace *init_group_workspace(const char *optarg)