Author: pjd
Date: Mon Sep 13 13:59:28 2010
New Revision: 212555
URL: http://svn.freebsd.org/changeset/base/212555
Log:
Add G_TYPE_MULTI flag, which when set for the given option, will
allow the option to be specified multiple times. This will help to
implement things like passing multiple keyfiles to geli(8) instead of
cat(1)ing them all into stdin and reading from there using one '-k -'
option.
Modified:
head/sbin/geom/core/geom.c
head/sbin/geom/core/geom.h
Modified: head/sbin/geom/core/geom.c
==============================================================================
--- head/sbin/geom/core/geom.c Mon Sep 13 13:48:18 2010 (r212554)
+++ head/sbin/geom/core/geom.c Mon Sep 13 13:59:28 2010 (r212555)
@@ -234,9 +234,31 @@ find_option(struct g_command *cmd, char
static void
set_option(struct gctl_req *req, struct g_option *opt, const char *val)
{
+ const char *optname;
uint64_t number;
void *ptr;
+ if (G_OPT_ISMULTI(opt)) {
+ size_t optnamesize;
+
+ if (G_OPT_NUM(opt) == UCHAR_MAX)
+ errx(EXIT_FAILURE, "Too many -%c options.",
opt->go_char);
+
+ /*
+ * Base option name length plus 3 bytes for option number
+ * (max. 255 options) plus 1 byte for terminating '\0'.
+ */
+ optnamesize = strlen(opt->go_name) + 3 + 1;
+ ptr = malloc(optnamesize);
+ if (ptr == NULL)
+ errx(EXIT_FAILURE, "No memory.");
+ snprintf(ptr, optnamesize, "%s%u", opt->go_name,
G_OPT_NUM(opt));
+ G_OPT_NUMINC(opt);
+ optname = ptr;
+ } else {
+ optname = opt->go_name;
+ }
+
if (G_OPT_TYPE(opt) == G_TYPE_NUMBER ||
G_OPT_TYPE(opt) == G_TYPE_ASCNUM) {
if (expand_number(val, &number) == -1) {
@@ -249,27 +271,30 @@ set_option(struct gctl_req *req, struct
errx(EXIT_FAILURE, "No memory.");
*(intmax_t *)ptr = number;
opt->go_val = ptr;
- gctl_ro_param(req, opt->go_name, sizeof(intmax_t),
+ gctl_ro_param(req, optname, sizeof(intmax_t),
opt->go_val);
} else {
asprintf((void *)(&ptr), "%jd", number);
if (ptr == NULL)
errx(EXIT_FAILURE, "No memory.");
opt->go_val = ptr;
- gctl_ro_param(req, opt->go_name, -1, opt->go_val);
+ gctl_ro_param(req, optname, -1, opt->go_val);
}
} else if (G_OPT_TYPE(opt) == G_TYPE_STRING) {
- gctl_ro_param(req, opt->go_name, -1, val);
+ gctl_ro_param(req, optname, -1, val);
} else if (G_OPT_TYPE(opt) == G_TYPE_BOOL) {
ptr = malloc(sizeof(int));
if (ptr == NULL)
errx(EXIT_FAILURE, "No memory.");
*(int *)ptr = *val - '0';
opt->go_val = ptr;
- gctl_ro_param(req, opt->go_name, sizeof(int), opt->go_val);
+ gctl_ro_param(req, optname, sizeof(int), opt->go_val);
} else {
assert(!"Invalid type");
}
+
+ if (G_OPT_ISMULTI(opt))
+ free(__DECONST(char *, optname));
}
/*
@@ -294,7 +319,10 @@ parse_arguments(struct g_command *cmd, s
if (opt->go_name == NULL)
break;
assert(G_OPT_TYPE(opt) != 0);
- assert((opt->go_type & ~G_TYPE_MASK) == 0);
+ assert((opt->go_type & ~(G_TYPE_MASK | G_TYPE_MULTI)) == 0);
+ /* Multiple bool arguments makes no sense. */
+ assert(G_OPT_TYPE(opt) != G_TYPE_BOOL ||
+ (opt->go_type & G_TYPE_MULTI) == 0);
strlcatf(opts, sizeof(opts), "%c", opt->go_char);
if (G_OPT_TYPE(opt) != G_TYPE_BOOL)
strlcat(opts, ":", sizeof(opts));
@@ -314,7 +342,7 @@ parse_arguments(struct g_command *cmd, s
opt = find_option(cmd, ch);
if (opt == NULL)
usage();
- if (G_OPT_ISDONE(opt)) {
+ if (!G_OPT_ISMULTI(opt) && G_OPT_ISDONE(opt)) {
warnx("Option '%c' specified twice.", opt->go_char);
usage();
}
Modified: head/sbin/geom/core/geom.h
==============================================================================
--- head/sbin/geom/core/geom.h Mon Sep 13 13:48:18 2010 (r212554)
+++ head/sbin/geom/core/geom.h Mon Sep 13 13:59:28 2010 (r212555)
@@ -41,11 +41,17 @@
#define G_TYPE_ASCNUM 0x04
#define G_TYPE_MASK 0x0f
#define G_TYPE_DONE 0x10
+#define G_TYPE_MULTI 0x20
+#define G_TYPE_NUMMASK 0xff00
+#define G_TYPE_NUMSHIFT 8
#define G_OPT_MAX 16
#define G_OPT_DONE(opt) do { (opt)->go_type |= G_TYPE_DONE; }
while (0)
#define G_OPT_ISDONE(opt) ((opt)->go_type & G_TYPE_DONE)
+#define G_OPT_ISMULTI(opt) ((opt)->go_type & G_TYPE_MULTI)
#define G_OPT_TYPE(opt) ((opt)->go_type & G_TYPE_MASK)
+#define G_OPT_NUM(opt) (((opt)->go_type & G_TYPE_NUMMASK) >>
G_TYPE_NUMSHIFT)
+#define G_OPT_NUMINC(opt) ((opt)->go_type += (1 <<
G_TYPE_NUMSHIFT))
#define G_OPT_SENTINEL { '\0', NULL, NULL, G_TYPE_NONE }
#define G_NULL_OPTS { G_OPT_SENTINEL }
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