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Diffstat (limited to 'nss/getent.c')
-rw-r--r--nss/getent.c57
1 files changed, 31 insertions, 26 deletions
diff --git a/nss/getent.c b/nss/getent.c
index 0aea5eed2a..7124e6303f 100644
--- a/nss/getent.c
+++ b/nss/getent.c
@@ -757,12 +757,27 @@ D(shadow)
static error_t
parse_option (int key, char *arg, struct argp_state *state)
{
- int i;
+ char *endp;
switch (key)
{
case 's':
- for (i = 0; databases[i].name; ++i)
- __nss_configure_lookup (databases[i].name, arg);
+ endp = strchr (arg, ':');
+ if (endp == NULL)
+ /* No specific database, change them all. */
+ for (int i = 0; databases[i].name != NULL; ++i)
+ __nss_configure_lookup (databases[i].name, arg);
+ else
+ {
+ int i;
+ for (i = 0; databases[i].name != NULL; ++i)
+ if (strncmp (databases[i].name, arg, endp - arg) == 0)
+ {
+ __nss_configure_lookup (databases[i].name, endp + 1);
+ break;
+ }
+ if (databases[i].name == NULL)
+ error (EXIT_FAILURE, 0, gettext ("Unknown database name"));
+ }
break;
default:
@@ -776,31 +791,20 @@ parse_option (int key, char *arg, struct argp_state *state)
static char *
more_help (int key, const char *text, void *input)
{
- int len;
- char *long_doc, *doc, *p;
-
switch (key)
{
+ size_t len;
+ char *doc;
+ FILE *fp;
+
case ARGP_KEY_HELP_EXTRA:
/* We print some extra information. */
-#if 0
- return xstrdup (gettext ("\
-For bug reporting instructions, please see:\n\
-<http://www.gnu.org/software/libc/bugs.html>.\n"));
-#endif
- long_doc = _("Supported databases:");
- len = strlen (long_doc) + 2;
-
- for (int i = 0; databases[i].name; ++i)
- len += strlen (databases[i].name) + 1;
-
- doc = (char *) malloc (len);
- if (doc != NULL)
+ fp = open_memstream (&doc, &len);
+ if (fp != NULL)
{
- p = stpcpy (doc, long_doc);
- *p++ = '\n';
+ fputs_unlocked (_("Supported databases:\n"), fp);
- for (int i = 0, col = 0; databases[i].name; ++i)
+ for (int i = 0, col = 0; databases[i].name != NULL; ++i)
{
len = strlen (databases[i].name);
if (i != 0)
@@ -808,17 +812,18 @@ For bug reporting instructions, please see:\n\
if (col + len > 72)
{
col = 0;
- *p++ = '\n';
+ fputc_unlocked ('\n', fp);
}
else
- *p++ = ' ';
+ fputc_unlocked (' ', fp);
}
- p = mempcpy (p, databases[i].name, len);
+ fputs_unlocked (databases[i].name, fp);
col += len + 1;
}
- return doc;
+ if (fclose (fp) == 0)
+ return doc;
}
break;