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[126.8.227.16]) by smtp.gmail.com with ESMTPSA id c17sm9097890pgm.3.2021.05.16.16.14.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 16 May 2021 16:14:49 -0700 (PDT) From: QI Fuli X-Google-Original-From: QI Fuli To: linux-nvdimm@lists.01.org Subject: [RFC ndctl PATCH 2/3] ndctl, util: add parse-configs helper Date: Mon, 17 May 2021 08:14:26 +0900 Message-Id: <20210516231427.64162-3-qi.fuli@fujitsu.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210516231427.64162-1-qi.fuli@fujitsu.com> References: <20210516231427.64162-1-qi.fuli@fujitsu.com> MIME-Version: 1.0 Message-ID-Hash: BGKZHIRXDMFT3ZXTRYTMSWLG5X6ERPKV X-Message-ID-Hash: BGKZHIRXDMFT3ZXTRYTMSWLG5X6ERPKV X-MailFrom: fukuri.sai@gmail.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; suspicious-header CC: QI Fuli X-Mailman-Version: 3.1.1 Precedence: list List-Id: "Linux-nvdimm developer list." Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit From: QI Fuli Add parse-config helper to help ndctl commands read the ndctl global configuration file. Signed-off-by: QI Fuli --- Makefile.am | 2 ++ util/parse-configs.c | 47 ++++++++++++++++++++++++++++++++++++++++++++ util/parse-configs.h | 26 ++++++++++++++++++++++++ 3 files changed, 75 insertions(+) create mode 100644 util/parse-configs.c create mode 100644 util/parse-configs.h diff --git a/Makefile.am b/Makefile.am index 960b5e9..6e50741 100644 --- a/Makefile.am +++ b/Makefile.am @@ -74,6 +74,8 @@ noinst_LIBRARIES += libutil.a libutil_a_SOURCES = \ util/parse-options.c \ util/parse-options.h \ + util/parse-configs.c \ + util/parse-configs.h \ util/usage.c \ util/size.c \ util/main.c \ diff --git a/util/parse-configs.c b/util/parse-configs.c new file mode 100644 index 0000000..d404786 --- /dev/null +++ b/util/parse-configs.c @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2021, FUJITSU LIMITED. ALL rights reserved. + +#include +#include +#include +#include + +static void set_value(const char **value, char *val) +{ + struct strbuf buf = STRBUF_INIT; + size_t len = *value ? strlen(*value) : 0; + + if (!val) + return; + + if (len) { + strbuf_add(&buf, *value, len); + strbuf_addstr(&buf, " "); + } + strbuf_addstr(&buf, val); + *value = strbuf_detach(&buf, NULL); +} + +int parse_configs(const char *config_file, const struct config *configs) +{ + dictionary *dic; + + dic = ciniparser_load(config_file); + if (!dic) + return -errno; + + for (; configs->type != CONFIG_END; configs++) { + switch (configs->type) { + case CONFIG_STRING: + set_value((const char **)configs->value, + ciniparser_getstring(dic, + configs->key, configs->defval)); + break; + case CONFIG_END: + break; + } + } + + ciniparser_freedict(dic); + return 0; +} diff --git a/util/parse-configs.h b/util/parse-configs.h new file mode 100644 index 0000000..31886f7 --- /dev/null +++ b/util/parse-configs.h @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2021, FUJITSU LIMITED. ALL rights reserved. + +#include +#include +#include + +enum parse_conf_type { + CONFIG_STRING, + CONFIG_END, +}; + +struct config { + enum parse_conf_type type; + const char *key; + void *value; + void *defval; +}; + +#define check_vtype(v, type) ( BUILD_BUG_ON_ZERO(!__builtin_types_compatible_p(typeof(v), type)) + v ) + +#define CONF_END() { .type = CONFIG_END } +#define CONF_STR(k,v,d) \ + { .type = CONFIG_STRING, .key = (k), .value = check_vtype(v, const char **), .defval = (d) } + +int parse_configs(const char *config_file, const struct config *configs); -- 2.30.2 _______________________________________________ Linux-nvdimm mailing list -- linux-nvdimm@lists.01.org To unsubscribe send an email to linux-nvdimm-leave@lists.01.org