From 5cd5f48f765f00b81786c6f569314474a91a06b8 Mon Sep 17 00:00:00 2001 From: David Oberhollenzer Date: Sun, 16 Sep 2018 15:38:45 +0200 Subject: Add helper library for cron configuration Signed-off-by: David Oberhollenzer --- lib/libcfg/rdcfg.c | 83 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 lib/libcfg/rdcfg.c (limited to 'lib/libcfg/rdcfg.c') diff --git a/lib/libcfg/rdcfg.c b/lib/libcfg/rdcfg.c new file mode 100644 index 0000000..71a994f --- /dev/null +++ b/lib/libcfg/rdcfg.c @@ -0,0 +1,83 @@ +/* SPDX-License-Identifier: GPL-3.0-or-later */ +/* + * Copyright (C) 2018 - David Oberhollenzer + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +#include "libcfg.h" + +#include +#include + +static const cfg_param_t *find_param(rdline_t *rd, const char *name, + const cfg_param_t *params, size_t count) +{ + size_t i; + + for (i = 0; i < count; ++i) { + if (!strcmp(params[i].key, name)) + return params + i; + } + + fprintf(stderr, "%s: %zu: unknown keyword '%s'\n", + rd->filename, rd->lineno, name); + return NULL; +} + +int rdcfg(void *cfgobj, rdline_t *rd, const cfg_param_t *params, size_t count, + int flags) +{ + const cfg_param_t *p; + char *key, *value; + int ret; + + while ((ret = rdline(rd)) == 0) { + if (splitkv(rd, &key, &value)) + return -1; + + p = find_param(rd, key, params, count); + if (p == NULL) + return -1; + + if (p->allow_block && *value == '{') { + for (++value; *value == ' '; ++value) + ; + + if (*value != '\0') { + ret = p->handle(cfgobj, value, rd, flags); + if (ret) + return -1; + } + + while ((ret = rdline(rd)) == 0) { + if (strcmp(rd->buffer, "}") == 0) + break; + if (p->handle(cfgobj, rd->buffer, rd, flags)) + return -1; + } + + if (ret < 0) + return -1; + if (ret > 0) + goto fail_bra; + } else if (p->handle(cfgobj, value, rd, flags)) { + return -1; + } + } + + return ret < 0 ? -1 : 0; +fail_bra: + fprintf(stderr, "%s: missing '}' before end-of-file\n", rd->filename); + return -1; +} -- cgit v1.2.3