* THE SOFTWARE.
*/
-#include <stdio.h>
-#include <string.h>
+#include "qemu/osdep.h"
+#include "qapi/error.h"
#include "qemu-common.h"
#include "qemu/error-report.h"
#include "qapi/qmp/types.h"
-#include "qapi/error.h"
#include "qapi/qmp/qerror.h"
#include "qemu/option_int.h"
+#include "qemu/cutils.h"
+#include "qemu/id.h"
+#include "qemu/help_option.h"
/*
* Extracts the name of an option from the parameter string (p points at the
static void parse_option_bool(const char *name, const char *value, bool *ret,
Error **errp)
{
- if (value != NULL) {
- if (!strcmp(value, "on")) {
- *ret = 1;
- } else if (!strcmp(value, "off")) {
- *ret = 0;
- } else {
- error_set(errp,QERR_INVALID_PARAMETER_VALUE, name, "'on' or 'off'");
- }
- } else {
+ if (!strcmp(value, "on")) {
*ret = 1;
+ } else if (!strcmp(value, "off")) {
+ *ret = 0;
+ } else {
+ error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
+ name, "'on' or 'off'");
}
}
static void parse_option_number(const char *name, const char *value,
uint64_t *ret, Error **errp)
{
- char *postfix;
uint64_t number;
+ int err;
- if (value != NULL) {
- number = strtoull(value, &postfix, 0);
- if (*postfix != '\0') {
- error_set(errp, QERR_INVALID_PARAMETER_VALUE, name, "a number");
- return;
- }
- *ret = number;
- } else {
- error_set(errp, QERR_INVALID_PARAMETER_VALUE, name, "a number");
+ err = qemu_strtou64(value, NULL, 0, &number);
+ if (err == -ERANGE) {
+ error_setg(errp, "Value '%s' is too large for parameter '%s'",
+ value, name);
+ return;
}
+ if (err) {
+ error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name, "a number");
+ return;
+ }
+ *ret = number;
}
static const QemuOptDesc *find_desc_by_name(const QemuOptDesc *desc,
void parse_option_size(const char *name, const char *value,
uint64_t *ret, Error **errp)
{
- char *postfix;
- double sizef;
-
- if (value != NULL) {
- sizef = strtod(value, &postfix);
- switch (*postfix) {
- case 'T':
- sizef *= 1024;
- /* fall through */
- case 'G':
- sizef *= 1024;
- /* fall through */
- case 'M':
- sizef *= 1024;
- /* fall through */
- case 'K':
- case 'k':
- sizef *= 1024;
- /* fall through */
- case 'b':
- case '\0':
- *ret = (uint64_t) sizef;
- break;
- default:
- error_set(errp, QERR_INVALID_PARAMETER_VALUE, name, "a size");
-#if 0 /* conversion from qerror_report() to error_set() broke this: */
- error_printf_unless_qmp("You may use k, M, G or T suffixes for "
- "kilobytes, megabytes, gigabytes and terabytes.\n");
-#endif
- return;
- }
- } else {
- error_set(errp, QERR_INVALID_PARAMETER_VALUE, name, "a size");
+ uint64_t size;
+ int err;
+
+ err = qemu_strtosz(value, NULL, &size);
+ if (err == -ERANGE) {
+ error_setg(errp, "Value '%s' is out of range for parameter '%s'",
+ value, name);
+ return;
+ }
+ if (err) {
+ error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name,
+ "a non-negative number below 2^64");
+ error_append_hint(errp, "Optional suffix k, M, G, T, P or E means"
+ " kilo-, mega-, giga-, tera-, peta-\n"
+ "and exabytes, respectively.\n");
+ return;
}
+ *ret = size;
}
bool has_help_option(const char *param)
return opt ? opt->str : NULL;
}
+void qemu_opt_iter_init(QemuOptsIter *iter, QemuOpts *opts, const char *name)
+{
+ iter->opts = opts;
+ iter->opt = QTAILQ_FIRST(&opts->head);
+ iter->name = name;
+}
+
+const char *qemu_opt_iter_next(QemuOptsIter *iter)
+{
+ QemuOpt *ret = iter->opt;
+ if (iter->name) {
+ while (ret && !g_str_equal(iter->name, ret->name)) {
+ ret = QTAILQ_NEXT(ret, next);
+ }
+ }
+ iter->opt = ret ? QTAILQ_NEXT(ret, next) : NULL;
+ return ret ? ret->str : NULL;
+}
+
/* Get a known option (or its default) and remove it from the list
* all in one action. Return a malloced string of the option value.
* Result must be freed by caller with g_free().
desc = find_desc_by_name(opts->list->desc, name);
if (!desc && !opts_accepts_any(opts)) {
- error_set(errp, QERR_INVALID_PARAMETER, name);
+ error_setg(errp, QERR_INVALID_PARAMETER, name);
return;
}
}
opt->desc = desc;
opt->str = g_strdup(value);
+ assert(opt->str);
qemu_opt_parse(opt, &local_err);
if (local_err) {
error_propagate(errp, local_err);
}
}
-int qemu_opt_set(QemuOpts *opts, const char *name, const char *value)
-{
- Error *local_err = NULL;
-
- opt_set(opts, name, value, false, &local_err);
- if (local_err) {
- qerror_report_err(local_err);
- error_free(local_err);
- return -1;
- }
-
- return 0;
-}
-
-void qemu_opt_set_err(QemuOpts *opts, const char *name, const char *value,
- Error **errp)
+void qemu_opt_set(QemuOpts *opts, const char *name, const char *value,
+ Error **errp)
{
opt_set(opts, name, value, false, errp);
}
opt = g_malloc0(sizeof(*opt));
opt->desc = find_desc_by_name(desc, name);
if (!opt->desc && !opts_accepts_any(opts)) {
- error_set(errp, QERR_INVALID_PARAMETER, name);
+ error_setg(errp, QERR_INVALID_PARAMETER, name);
g_free(opt);
return;
}
opt = g_malloc0(sizeof(*opt));
opt->desc = find_desc_by_name(desc, name);
if (!opt->desc && !opts_accepts_any(opts)) {
- error_set(errp, QERR_INVALID_PARAMETER, name);
+ error_setg(errp, QERR_INVALID_PARAMETER, name);
g_free(opt);
return;
}
QTAILQ_INSERT_TAIL(&opts->head, opt, next);
}
+/**
+ * For each member of @opts, call @func(@opaque, name, value, @errp).
+ * @func() may store an Error through @errp, but must return non-zero then.
+ * When @func() returns non-zero, break the loop and return that value.
+ * Return zero when the loop completes.
+ */
int qemu_opt_foreach(QemuOpts *opts, qemu_opt_loopfunc func, void *opaque,
- int abort_on_failure)
+ Error **errp)
{
QemuOpt *opt;
- int rc = 0;
+ int rc;
QTAILQ_FOREACH(opt, &opts->head, next) {
- rc = func(opt->name, opt->str, opaque);
- if (abort_on_failure && rc != 0)
- break;
+ rc = func(opaque, opt->name, opt->str, errp);
+ if (rc) {
+ return rc;
+ }
+ assert(!errp || !*errp);
}
- return rc;
+ return 0;
}
QemuOpts *qemu_opts_find(QemuOptsList *list, const char *id)
if (id) {
if (!id_wellformed(id)) {
- error_set(errp,QERR_INVALID_PARAMETER_VALUE, "id", "an identifier");
-#if 0 /* conversion from qerror_report() to error_set() broke this: */
- error_printf_unless_qmp("Identifiers consist of letters, digits, '-', '.', '_', starting with a letter.\n");
-#endif
+ error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "id",
+ "an identifier");
+ error_append_hint(errp, "Identifiers consist of letters, digits, "
+ "'-', '.', '_', starting with a letter.\n");
return NULL;
}
opts = qemu_opts_find(list, id);
loc_restore(&opts->loc);
}
-int qemu_opts_set(QemuOptsList *list, const char *id,
- const char *name, const char *value)
+void qemu_opts_set(QemuOptsList *list, const char *id,
+ const char *name, const char *value, Error **errp)
{
QemuOpts *opts;
Error *local_err = NULL;
opts = qemu_opts_create(list, id, 1, &local_err);
if (local_err) {
- qerror_report_err(local_err);
- error_free(local_err);
- return -1;
+ error_propagate(errp, local_err);
+ return;
}
- return qemu_opt_set(opts, name, value);
+ qemu_opt_set(opts, name, value, errp);
}
const char *qemu_opts_id(QemuOpts *opts)
g_free(opts);
}
-void qemu_opts_print(QemuOpts *opts, const char *sep)
+/* print value, escaping any commas in value */
+static void escaped_print(const char *value)
+{
+ const char *ptr;
+
+ for (ptr = value; *ptr; ++ptr) {
+ if (*ptr == ',') {
+ putchar(',');
+ }
+ putchar(*ptr);
+ }
+}
+
+void qemu_opts_print(QemuOpts *opts, const char *separator)
{
QemuOpt *opt;
QemuOptDesc *desc = opts->list->desc;
+ const char *sep = "";
+
+ if (opts->id) {
+ printf("id=%s", opts->id); /* passed id_wellformed -> no commas */
+ sep = separator;
+ }
if (desc[0].name == NULL) {
QTAILQ_FOREACH(opt, &opts->head, next) {
- printf("%s%s=\"%s\"", sep, opt->name, opt->str);
+ printf("%s%s=", sep, opt->name);
+ escaped_print(opt->str);
+ sep = separator;
}
return;
}
continue;
}
if (desc->type == QEMU_OPT_STRING) {
- printf("%s%s='%s'", sep, desc->name, value);
+ printf("%s%s=", sep, desc->name);
+ escaped_print(value);
} else if ((desc->type == QEMU_OPT_SIZE ||
desc->type == QEMU_OPT_NUMBER) && opt) {
printf("%s%s=%" PRId64, sep, desc->name, opt->value.uint);
} else {
printf("%s%s=%s", sep, desc->name, value);
}
+ sep = separator;
}
}
-static int opts_do_parse(QemuOpts *opts, const char *params,
- const char *firstname, bool prepend)
+static void opts_do_parse(QemuOpts *opts, const char *params,
+ const char *firstname, bool prepend, Error **errp)
{
char option[128], value[1024];
const char *p,*pe,*pc;
/* store and parse */
opt_set(opts, option, value, prepend, &local_err);
if (local_err) {
- qerror_report_err(local_err);
- error_free(local_err);
- return -1;
+ error_propagate(errp, local_err);
+ return;
}
}
if (*p != ',') {
break;
}
}
- return 0;
}
-int qemu_opts_do_parse(QemuOpts *opts, const char *params, const char *firstname)
+/**
+ * Store options parsed from @params into @opts.
+ * If @firstname is non-null, the first key=value in @params may omit
+ * key=, and is treated as if key was @firstname.
+ * On error, store an error object through @errp if non-null.
+ */
+void qemu_opts_do_parse(QemuOpts *opts, const char *params,
+ const char *firstname, Error **errp)
{
- return opts_do_parse(opts, params, firstname, false);
+ opts_do_parse(opts, params, firstname, false, errp);
}
static QemuOpts *opts_parse(QemuOptsList *list, const char *params,
- int permit_abbrev, bool defaults)
+ bool permit_abbrev, bool defaults, Error **errp)
{
const char *firstname;
char value[1024], *id = NULL;
assert(!defaults || list->merge_lists);
opts = qemu_opts_create(list, id, !defaults, &local_err);
if (opts == NULL) {
- if (local_err) {
- qerror_report_err(local_err);
- error_free(local_err);
- }
+ error_propagate(errp, local_err);
return NULL;
}
- if (opts_do_parse(opts, params, firstname, defaults) != 0) {
+ opts_do_parse(opts, params, firstname, defaults, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
qemu_opts_del(opts);
return NULL;
}
return opts;
}
+/**
+ * Create a QemuOpts in @list and with options parsed from @params.
+ * If @permit_abbrev, the first key=value in @params may omit key=,
+ * and is treated as if key was @list->implied_opt_name.
+ * On error, store an error object through @errp if non-null.
+ * Return the new QemuOpts on success, null pointer on error.
+ */
QemuOpts *qemu_opts_parse(QemuOptsList *list, const char *params,
- int permit_abbrev)
+ bool permit_abbrev, Error **errp)
{
- return opts_parse(list, params, permit_abbrev, false);
+ return opts_parse(list, params, permit_abbrev, false, errp);
+}
+
+/**
+ * Create a QemuOpts in @list and with options parsed from @params.
+ * If @permit_abbrev, the first key=value in @params may omit key=,
+ * and is treated as if key was @list->implied_opt_name.
+ * Report errors with error_report_err(). This is inappropriate in
+ * QMP context. Do not use this function there!
+ * Return the new QemuOpts on success, null pointer on error.
+ */
+QemuOpts *qemu_opts_parse_noisily(QemuOptsList *list, const char *params,
+ bool permit_abbrev)
+{
+ Error *err = NULL;
+ QemuOpts *opts;
+
+ opts = opts_parse(list, params, permit_abbrev, false, &err);
+ if (err) {
+ error_report_err(err);
+ }
+ return opts;
}
void qemu_opts_set_defaults(QemuOptsList *list, const char *params,
{
QemuOpts *opts;
- opts = opts_parse(list, params, permit_abbrev, true);
+ opts = opts_parse(list, params, permit_abbrev, true, NULL);
assert(opts);
}
break;
case QTYPE_QBOOL:
pstrcpy(buf, sizeof(buf),
- qbool_get_int(qobject_to_qbool(obj)) ? "on" : "off");
+ qbool_get_bool(qobject_to_qbool(obj)) ? "on" : "off");
value = buf;
break;
default:
return;
}
- qemu_opt_set_err(state->opts, key, value, state->errp);
+ qemu_opt_set(state->opts, key, value, state->errp);
}
/*
QTAILQ_FOREACH(opt, &opts->head, next) {
opt->desc = find_desc_by_name(desc, opt->name);
if (!opt->desc) {
- error_set(errp, QERR_INVALID_PARAMETER, opt->name);
+ error_setg(errp, QERR_INVALID_PARAMETER, opt->name);
return;
}
}
}
-int qemu_opts_foreach(QemuOptsList *list, qemu_opts_loopfunc func, void *opaque,
- int abort_on_failure)
+/**
+ * For each member of @list, call @func(@opaque, member, @errp).
+ * Call it with the current location temporarily set to the member's.
+ * @func() may store an Error through @errp, but must return non-zero then.
+ * When @func() returns non-zero, break the loop and return that value.
+ * Return zero when the loop completes.
+ */
+int qemu_opts_foreach(QemuOptsList *list, qemu_opts_loopfunc func,
+ void *opaque, Error **errp)
{
Location loc;
QemuOpts *opts;
loc_push_none(&loc);
QTAILQ_FOREACH(opts, &list->head, next) {
loc_restore(&opts->loc);
- rc |= func(opts, opaque);
- if (abort_on_failure && rc != 0)
+ rc = func(opaque, opts, errp);
+ if (rc) {
break;
+ }
+ assert(!errp || !*errp);
}
loc_pop(&loc);
return rc;
projects / mirror_qemu.git / blobdiff