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authorUlrich Drepper <drepper@redhat.com>2005-09-26 23:02:01 +0000
committerUlrich Drepper <drepper@redhat.com>2005-09-26 23:02:01 +0000
commit9a5933834ba8f1289024c1ab13e1cd711b5ec3af (patch)
treeee657c7e17e88bc2aabee4909ac10bff8c36a300 /posix/getconf.c
parent419bcf40d791f84cbebaed50dfc488f24980ca31 (diff)
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[BZ #652]
2005-01-11 Thorsten Kukuk <kukuk@suse.de> [BZ #652] * posix/getconf.c: Add new option -a to print the names of the current system configuration variables to stdout. Based on patch from Josh Aas <josha@sgi.com>.
Diffstat (limited to 'posix/getconf.c')
-rw-r--r--posix/getconf.c57
1 files changed, 56 insertions, 1 deletions
diff --git a/posix/getconf.c b/posix/getconf.c
index 0cc0c0d..da8e538 100644
--- a/posix/getconf.c
+++ b/posix/getconf.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 92, 1995-2003, 2004, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 92, 1995-2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -941,9 +941,54 @@ usage (void)
fprintf (stderr,
_("Usage: %s [-v specification] variable_name [pathname]\n"),
__progname);
+ fprintf (stderr,
+ _(" %s -a [pathname]\n"), __progname);
exit (2);
}
+static void
+print_all (const char *path)
+{
+ register const struct conf *c;
+ size_t clen;
+ long int value;
+ char *cvalue;
+ for (c = vars; c->name != NULL; ++c) {
+ printf("%-35s", c->name);
+ switch (c->call) {
+ case PATHCONF:
+ value = pathconf (path, c->call_name);
+ if (value != -1) {
+ printf("%ld", value);
+ }
+ printf("\n");
+ break;
+ case SYSCONF:
+ value = sysconf (c->call_name);
+ if (value == -1l) {
+ if (c->call_name == _SC_UINT_MAX
+ || c->call_name == _SC_ULONG_MAX)
+ printf ("%lu", value);
+ }
+ else {
+ printf ("%ld", value);
+ }
+ printf ("\n");
+ break;
+ case CONFSTR:
+ clen = confstr (c->call_name, (char *) NULL, 0);
+ cvalue = (char *) malloc (clen);
+ if (cvalue == NULL)
+ error (3, 0, _("memory exhausted"));
+ if (confstr (c->call_name, cvalue, clen) != clen)
+ error (3, errno, "confstr");
+ printf ("%.*s\n", (int) clen, cvalue);
+ break;
+ }
+ }
+ exit (0);
+}
+
int
main (int argc, char *argv[])
{
@@ -1050,6 +1095,16 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
}
}
+ if (argc > 1 && strcmp (argv[1], "-a") == 0)
+ {
+ if (argc == 2)
+ print_all ("/");
+ else if (argc == 3)
+ print_all (argv[2]);
+ else
+ usage ();
+ }
+
if (argc < 2 || argc > 3)
usage ();