Mirror of the official OpenWrt uci repository
https://git.openwrt.org/project/uci
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785 lines
15 KiB
785 lines
15 KiB
/*
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* cli - Command Line Interface for the Unified Configuration Interface
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* Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <strings.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <errno.h>
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#include <unistd.h>
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#include "uci.h"
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#define MAX_ARGS 4 /* max command line arguments for batch mode */
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static const char *delimiter = " ";
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static const char *appname;
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static enum {
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CLI_FLAG_MERGE = (1 << 0),
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CLI_FLAG_QUIET = (1 << 1),
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CLI_FLAG_NOCOMMIT = (1 << 2),
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CLI_FLAG_BATCH = (1 << 3),
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CLI_FLAG_SHOW_EXT = (1 << 4),
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} flags;
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static FILE *input;
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static struct uci_context *ctx;
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enum {
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/* section cmds */
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CMD_GET,
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CMD_SET,
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CMD_ADD_LIST,
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CMD_DEL_LIST,
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CMD_DEL,
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CMD_RENAME,
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CMD_REVERT,
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CMD_REORDER,
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/* package cmds */
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CMD_SHOW,
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CMD_CHANGES,
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CMD_EXPORT,
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CMD_COMMIT,
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/* other cmds */
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CMD_ADD,
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CMD_IMPORT,
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CMD_HELP,
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};
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struct uci_type_list {
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unsigned int idx;
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const char *name;
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struct uci_type_list *next;
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};
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static struct uci_type_list *type_list = NULL;
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static char *typestr = NULL;
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static const char *cur_section_ref = NULL;
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static int uci_cmd(int argc, char **argv);
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static void
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uci_reset_typelist(void)
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{
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struct uci_type_list *type;
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while (type_list != NULL) {
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type = type_list;
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type_list = type_list->next;
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free(type);
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}
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if (typestr) {
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free(typestr);
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typestr = NULL;
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}
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cur_section_ref = NULL;
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}
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static char *
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uci_lookup_section_ref(struct uci_section *s)
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{
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struct uci_type_list *ti = type_list;
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char *ret;
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int maxlen;
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if (!(flags & CLI_FLAG_SHOW_EXT))
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return s->e.name;
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/* look up in section type list */
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while (ti) {
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if (strcmp(ti->name, s->type) == 0)
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break;
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ti = ti->next;
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}
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if (!ti) {
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ti = calloc(1, sizeof(struct uci_type_list));
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if (!ti)
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return NULL;
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ti->next = type_list;
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type_list = ti;
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ti->name = s->type;
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}
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if (s->anonymous) {
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maxlen = strlen(s->type) + 1 + 2 + 10;
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if (!typestr) {
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typestr = malloc(maxlen);
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if (!typestr)
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return NULL;
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} else {
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void *p = realloc(typestr, maxlen);
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if (!p) {
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free(typestr);
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return NULL;
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}
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typestr = p;
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}
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if (typestr)
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sprintf(typestr, "@%s[%d]", ti->name, ti->idx);
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ret = typestr;
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} else {
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ret = s->e.name;
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}
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ti->idx++;
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return ret;
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}
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static void uci_usage(void)
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{
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fprintf(stderr,
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"Usage: %s [<options>] <command> [<arguments>]\n\n"
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"Commands:\n"
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"\tbatch\n"
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"\texport [<config>]\n"
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"\timport [<config>]\n"
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"\tchanges [<config>]\n"
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"\tcommit [<config>]\n"
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"\tadd <config> <section-type>\n"
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"\tadd_list <config>.<section>.<option>=<string>\n"
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"\tdel_list <config>.<section>.<option>=<string>\n"
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"\tshow [<config>[.<section>[.<option>]]]\n"
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"\tget <config>.<section>[.<option>]\n"
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"\tset <config>.<section>[.<option>]=<value>\n"
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"\tdelete <config>[.<section>[[.<option>][=<id>]]]\n"
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"\trename <config>.<section>[.<option>]=<name>\n"
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"\trevert <config>[.<section>[.<option>]]\n"
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"\treorder <config>.<section>=<position>\n"
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"\n"
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"Options:\n"
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"\t-c <path> set the search path for config files (default: /etc/config)\n"
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"\t-d <str> set the delimiter for list values in uci show\n"
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"\t-f <file> use <file> as input instead of stdin\n"
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"\t-m when importing, merge data into an existing package\n"
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"\t-n name unnamed sections on export (default)\n"
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"\t-N don't name unnamed sections\n"
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"\t-p <path> add a search path for config change files\n"
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"\t-P <path> add a search path for config change files and use as default\n"
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"\t-q quiet mode (don't print error messages)\n"
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"\t-s force strict mode (stop on parser errors, default)\n"
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"\t-S disable strict mode\n"
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"\t-X do not use extended syntax on 'show'\n"
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"\n",
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appname
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);
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}
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static void cli_perror(void)
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{
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if (flags & CLI_FLAG_QUIET)
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return;
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uci_perror(ctx, appname);
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}
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__attribute__((format(printf, 1, 2)))
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static void cli_error(const char *fmt, ...)
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{
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va_list ap;
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if (flags & CLI_FLAG_QUIET)
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return;
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va_start(ap, fmt);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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}
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static void uci_print_value(FILE *f, const char *v)
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{
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fprintf(f, "'");
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while (*v) {
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if (*v != '\'')
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fputc(*v, f);
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else
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fprintf(f, "'\\''");
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v++;
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}
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fprintf(f, "'");
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}
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static void uci_show_value(struct uci_option *o, bool quote)
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{
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struct uci_element *e;
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bool sep = false;
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char *space;
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switch(o->type) {
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case UCI_TYPE_STRING:
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if (quote)
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uci_print_value(stdout, o->v.string);
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else
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printf("%s", o->v.string);
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printf("\n");
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break;
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case UCI_TYPE_LIST:
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uci_foreach_element(&o->v.list, e) {
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printf("%s", (sep ? delimiter : ""));
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space = strpbrk(e->name, " \t\r\n");
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if (!space && !quote)
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printf("%s", e->name);
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else
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uci_print_value(stdout, e->name);
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sep = true;
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}
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printf("\n");
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break;
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default:
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printf("<unknown>\n");
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break;
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}
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}
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static void uci_show_option(struct uci_option *o, bool quote)
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{
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printf("%s.%s.%s=",
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o->section->package->e.name,
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(cur_section_ref ? cur_section_ref : o->section->e.name),
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o->e.name);
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uci_show_value(o, quote);
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}
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static void uci_show_section(struct uci_section *s)
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{
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struct uci_element *e;
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const char *cname;
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const char *sname;
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cname = s->package->e.name;
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sname = (cur_section_ref ? cur_section_ref : s->e.name);
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printf("%s.%s=%s\n", cname, sname, s->type);
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uci_foreach_element(&s->options, e) {
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uci_show_option(uci_to_option(e), true);
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}
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}
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static void uci_show_package(struct uci_package *p)
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{
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struct uci_element *e;
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uci_reset_typelist();
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uci_foreach_element( &p->sections, e) {
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struct uci_section *s = uci_to_section(e);
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cur_section_ref = uci_lookup_section_ref(s);
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uci_show_section(s);
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}
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uci_reset_typelist();
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}
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static void uci_show_changes(struct uci_package *p)
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{
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struct uci_element *e;
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uci_foreach_element(&p->saved_delta, e) {
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struct uci_delta *h = uci_to_delta(e);
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char *prefix = "";
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char *op = "=";
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switch(h->cmd) {
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case UCI_CMD_REMOVE:
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prefix = "-";
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break;
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case UCI_CMD_LIST_ADD:
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op = "+=";
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break;
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case UCI_CMD_LIST_DEL:
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op = "-=";
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break;
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default:
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break;
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}
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printf("%s%s.%s", prefix, p->e.name, h->section);
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if (e->name)
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printf(".%s", e->name);
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if (h->cmd != UCI_CMD_REMOVE) {
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printf("%s", op);
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uci_print_value(stdout, h->value);
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}
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printf("\n");
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}
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}
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static int package_cmd(int cmd, char *tuple)
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{
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struct uci_element *e = NULL;
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struct uci_ptr ptr;
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int ret = 1;
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if (uci_lookup_ptr(ctx, &ptr, tuple, true) != UCI_OK) {
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cli_perror();
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return 1;
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}
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e = ptr.last;
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switch(cmd) {
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case CMD_CHANGES:
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uci_show_changes(ptr.p);
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break;
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case CMD_COMMIT:
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if (flags & CLI_FLAG_NOCOMMIT) {
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ret = 0;
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goto out;
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}
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if (uci_commit(ctx, &ptr.p, false) != UCI_OK) {
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cli_perror();
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goto out;
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}
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break;
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case CMD_EXPORT:
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if (uci_export(ctx, stdout, ptr.p, true) != UCI_OK) {
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goto out;
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}
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break;
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case CMD_SHOW:
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if (!(ptr.flags & UCI_LOOKUP_COMPLETE)) {
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ctx->err = UCI_ERR_NOTFOUND;
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cli_perror();
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goto out;
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}
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switch(e->type) {
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case UCI_TYPE_PACKAGE:
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uci_show_package(ptr.p);
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break;
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case UCI_TYPE_SECTION:
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uci_show_section(ptr.s);
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break;
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case UCI_TYPE_OPTION:
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uci_show_option(ptr.o, true);
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break;
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default:
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/* should not happen */
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goto out;
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}
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break;
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}
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ret = 0;
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out:
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if (ptr.p)
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uci_unload(ctx, ptr.p);
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return ret;
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}
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static int uci_do_import(int argc, char **argv)
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{
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struct uci_package *package = NULL;
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char *name = NULL;
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int ret = UCI_OK;
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bool merge = false;
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if (argc > 2)
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return 255;
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if (argc == 2)
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name = argv[1];
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else if (flags & CLI_FLAG_MERGE)
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/* need a package to merge */
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return 255;
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if (flags & CLI_FLAG_MERGE) {
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if (uci_load(ctx, name, &package) != UCI_OK)
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package = NULL;
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else
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merge = true;
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}
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ret = uci_import(ctx, input, name, &package, (name != NULL));
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if (ret == UCI_OK) {
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if (merge) {
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ret = uci_save(ctx, package);
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} else {
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struct uci_element *e;
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/* loop through all config sections and overwrite existing data */
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uci_foreach_element(&ctx->root, e) {
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struct uci_package *p = uci_to_package(e);
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ret = uci_commit(ctx, &p, true);
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}
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}
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}
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if (ret != UCI_OK) {
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cli_perror();
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return 1;
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}
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return 0;
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}
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static int uci_do_package_cmd(int cmd, int argc, char **argv)
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{
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char **configs = NULL;
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char **p;
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int ret = 1;
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if (argc > 2)
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return 255;
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if (argc == 2)
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return package_cmd(cmd, argv[1]);
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if ((uci_list_configs(ctx, &configs) != UCI_OK) || !configs) {
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cli_perror();
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goto out;
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}
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for (p = configs; *p; p++) {
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package_cmd(cmd, *p);
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}
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ret = 0;
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out:
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free(configs);
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return ret;
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}
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static int uci_do_add(int argc, char **argv)
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{
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struct uci_package *p = NULL;
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struct uci_section *s = NULL;
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int ret;
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if (argc != 3)
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return 255;
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ret = uci_load(ctx, argv[1], &p);
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if (ret != UCI_OK)
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goto done;
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ret = uci_add_section(ctx, p, argv[2], &s);
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if (ret != UCI_OK)
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goto done;
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ret = uci_save(ctx, p);
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done:
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if (ret != UCI_OK)
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cli_perror();
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else if (s)
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fprintf(stdout, "%s\n", s->e.name);
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return ret;
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}
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static int uci_do_section_cmd(int cmd, int argc, char **argv)
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{
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struct uci_element *e;
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struct uci_ptr ptr;
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int ret = UCI_OK;
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int dummy;
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if (argc != 2)
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return 255;
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if (uci_lookup_ptr(ctx, &ptr, argv[1], true) != UCI_OK) {
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cli_perror();
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return 1;
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}
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if (ptr.value && (cmd != CMD_SET) && (cmd != CMD_DEL) &&
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(cmd != CMD_ADD_LIST) && (cmd != CMD_DEL_LIST) &&
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(cmd != CMD_RENAME) && (cmd != CMD_REORDER))
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return 1;
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e = ptr.last;
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switch(cmd) {
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case CMD_GET:
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if (!(ptr.flags & UCI_LOOKUP_COMPLETE)) {
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ctx->err = UCI_ERR_NOTFOUND;
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cli_perror();
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return 1;
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}
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switch(e->type) {
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case UCI_TYPE_SECTION:
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printf("%s\n", ptr.s->type);
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break;
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case UCI_TYPE_OPTION:
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uci_show_value(ptr.o, false);
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break;
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default:
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break;
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}
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/* throw the value to stdout */
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break;
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case CMD_RENAME:
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ret = uci_rename(ctx, &ptr);
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break;
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case CMD_REVERT:
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ret = uci_revert(ctx, &ptr);
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break;
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case CMD_SET:
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ret = uci_set(ctx, &ptr);
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break;
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case CMD_ADD_LIST:
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ret = uci_add_list(ctx, &ptr);
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break;
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case CMD_DEL_LIST:
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ret = uci_del_list(ctx, &ptr);
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break;
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case CMD_REORDER:
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if (!ptr.s || !ptr.value) {
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ctx->err = UCI_ERR_NOTFOUND;
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cli_perror();
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return 1;
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}
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ret = uci_reorder_section(ctx, ptr.s, strtoul(ptr.value, NULL, 10));
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break;
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case CMD_DEL:
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if (ptr.value && !sscanf(ptr.value, "%d", &dummy))
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return 1;
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ret = uci_delete(ctx, &ptr);
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break;
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}
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/* no save necessary for get */
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if ((cmd == CMD_GET) || (cmd == CMD_REVERT))
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return 0;
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/* save changes, but don't commit them yet */
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if (ret == UCI_OK)
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ret = uci_save(ctx, ptr.p);
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if (ret != UCI_OK) {
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cli_perror();
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return 1;
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}
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return 0;
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}
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static int uci_batch_cmd(void)
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{
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char *argv[MAX_ARGS + 2];
|
|
char *str = NULL;
|
|
int ret = 0;
|
|
int i, j;
|
|
|
|
for(i = 0; i <= MAX_ARGS; i++) {
|
|
if (i == MAX_ARGS) {
|
|
cli_error("Too many arguments\n");
|
|
return 1;
|
|
}
|
|
argv[i] = NULL;
|
|
if (uci_parse_argument(ctx, input, &str, &argv[i]) != UCI_OK) {
|
|
cli_perror();
|
|
i = 0;
|
|
break;
|
|
}
|
|
if (!argv[i][0])
|
|
break;
|
|
argv[i] = strdup(argv[i]);
|
|
if (!argv[i]) {
|
|
cli_error("uci: %s", strerror(errno));
|
|
return 1;
|
|
}
|
|
}
|
|
argv[i] = NULL;
|
|
|
|
if (i > 0) {
|
|
if (!strcasecmp(argv[0], "exit"))
|
|
return 254;
|
|
ret = uci_cmd(i, argv);
|
|
} else
|
|
return 0;
|
|
|
|
for (j = 0; j < i; j++) {
|
|
free(argv[j]);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int uci_batch(void)
|
|
{
|
|
int ret = 0;
|
|
|
|
flags |= CLI_FLAG_BATCH;
|
|
while (!feof(input)) {
|
|
struct uci_element *e, *tmp;
|
|
|
|
ret = uci_batch_cmd();
|
|
if (ret == 254)
|
|
return 0;
|
|
else if (ret == 255)
|
|
cli_error("Unknown command\n");
|
|
|
|
/* clean up */
|
|
uci_foreach_element_safe(&ctx->root, tmp, e) {
|
|
uci_unload(ctx, uci_to_package(e));
|
|
}
|
|
}
|
|
flags &= ~CLI_FLAG_BATCH;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int uci_cmd(int argc, char **argv)
|
|
{
|
|
int cmd = 0;
|
|
|
|
if (!strcasecmp(argv[0], "batch") && !(flags & CLI_FLAG_BATCH))
|
|
return uci_batch();
|
|
else if (!strcasecmp(argv[0], "show"))
|
|
cmd = CMD_SHOW;
|
|
else if (!strcasecmp(argv[0], "changes"))
|
|
cmd = CMD_CHANGES;
|
|
else if (!strcasecmp(argv[0], "export"))
|
|
cmd = CMD_EXPORT;
|
|
else if (!strcasecmp(argv[0], "commit"))
|
|
cmd = CMD_COMMIT;
|
|
else if (!strcasecmp(argv[0], "get"))
|
|
cmd = CMD_GET;
|
|
else if (!strcasecmp(argv[0], "set"))
|
|
cmd = CMD_SET;
|
|
else if (!strcasecmp(argv[0], "ren") ||
|
|
!strcasecmp(argv[0], "rename"))
|
|
cmd = CMD_RENAME;
|
|
else if (!strcasecmp(argv[0], "revert"))
|
|
cmd = CMD_REVERT;
|
|
else if (!strcasecmp(argv[0], "reorder"))
|
|
cmd = CMD_REORDER;
|
|
else if (!strcasecmp(argv[0], "del") ||
|
|
!strcasecmp(argv[0], "delete"))
|
|
cmd = CMD_DEL;
|
|
else if (!strcasecmp(argv[0], "import"))
|
|
cmd = CMD_IMPORT;
|
|
else if (!strcasecmp(argv[0], "help"))
|
|
cmd = CMD_HELP;
|
|
else if (!strcasecmp(argv[0], "add"))
|
|
cmd = CMD_ADD;
|
|
else if (!strcasecmp(argv[0], "add_list"))
|
|
cmd = CMD_ADD_LIST;
|
|
else if (!strcasecmp(argv[0], "del_list"))
|
|
cmd = CMD_DEL_LIST;
|
|
else
|
|
cmd = -1;
|
|
|
|
switch(cmd) {
|
|
case CMD_ADD_LIST:
|
|
case CMD_DEL_LIST:
|
|
case CMD_GET:
|
|
case CMD_SET:
|
|
case CMD_DEL:
|
|
case CMD_RENAME:
|
|
case CMD_REVERT:
|
|
case CMD_REORDER:
|
|
return uci_do_section_cmd(cmd, argc, argv);
|
|
case CMD_SHOW:
|
|
case CMD_EXPORT:
|
|
case CMD_COMMIT:
|
|
case CMD_CHANGES:
|
|
return uci_do_package_cmd(cmd, argc, argv);
|
|
case CMD_IMPORT:
|
|
return uci_do_import(argc, argv);
|
|
case CMD_ADD:
|
|
return uci_do_add(argc, argv);
|
|
case CMD_HELP:
|
|
uci_usage();
|
|
return 0;
|
|
default:
|
|
return 255;
|
|
}
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int ret;
|
|
int c;
|
|
|
|
flags = CLI_FLAG_SHOW_EXT;
|
|
appname = argv[0];
|
|
input = stdin;
|
|
ctx = uci_alloc_context();
|
|
if (!ctx) {
|
|
cli_error("Out of memory\n");
|
|
return 1;
|
|
}
|
|
|
|
while((c = getopt(argc, argv, "c:d:f:LmnNp:P:sSqX")) != -1) {
|
|
switch(c) {
|
|
case 'c':
|
|
uci_set_confdir(ctx, optarg);
|
|
break;
|
|
case 'd':
|
|
delimiter = optarg;
|
|
break;
|
|
case 'f':
|
|
if (input != stdin) {
|
|
fclose(input);
|
|
cli_error("Too many input files.\n");
|
|
return 1;
|
|
}
|
|
|
|
input = fopen(optarg, "r");
|
|
if (!input) {
|
|
cli_error("uci: %s", strerror(errno));
|
|
return 1;
|
|
}
|
|
break;
|
|
case 'm':
|
|
flags |= CLI_FLAG_MERGE;
|
|
break;
|
|
case 's':
|
|
ctx->flags |= UCI_FLAG_STRICT;
|
|
break;
|
|
case 'S':
|
|
ctx->flags &= ~UCI_FLAG_STRICT;
|
|
ctx->flags |= UCI_FLAG_PERROR;
|
|
break;
|
|
case 'n':
|
|
ctx->flags |= UCI_FLAG_EXPORT_NAME;
|
|
break;
|
|
case 'N':
|
|
ctx->flags &= ~UCI_FLAG_EXPORT_NAME;
|
|
break;
|
|
case 'p':
|
|
uci_add_delta_path(ctx, optarg);
|
|
break;
|
|
case 'P':
|
|
uci_add_delta_path(ctx, ctx->savedir);
|
|
uci_set_savedir(ctx, optarg);
|
|
flags |= CLI_FLAG_NOCOMMIT;
|
|
break;
|
|
case 'q':
|
|
flags |= CLI_FLAG_QUIET;
|
|
break;
|
|
case 'X':
|
|
flags &= ~CLI_FLAG_SHOW_EXT;
|
|
break;
|
|
default:
|
|
uci_usage();
|
|
return 0;
|
|
}
|
|
}
|
|
if (optind > 1)
|
|
argv[optind - 1] = argv[0];
|
|
argv += optind - 1;
|
|
argc -= optind - 1;
|
|
|
|
if (argc < 2) {
|
|
uci_usage();
|
|
return 0;
|
|
}
|
|
|
|
ret = uci_cmd(argc - 1, argv + 1);
|
|
if (input != stdin)
|
|
fclose(input);
|
|
|
|
if (ret == 255)
|
|
uci_usage();
|
|
|
|
uci_free_context(ctx);
|
|
|
|
return ret;
|
|
}
|