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115 lines
4.1 KiB
C
115 lines
4.1 KiB
C
/*
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Serval command line parsing and processing.
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Copyright (C) 2012,2013 Serval Project Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __SERVAL_DNA__CLI_H
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#define __SERVAL_DNA__CLI_H
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#include <stdint.h>
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#ifdef HAVE_JNI_H
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#include <jni.h>
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// Stop OpenJDK 7 from foisting their UNUSED() macro on us in <jni_md.h>
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#ifdef UNUSED
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# undef UNUSED
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#endif
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int Throw(JNIEnv *env, const char *class, const char *msg);
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#endif
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#include "xprintf.h"
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#include "log.h"
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#define COMMAND_LINE_MAX_LABELS (16)
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struct cli_parsed;
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struct cli_context{
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#ifdef HAVE_JNI_H
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JNIEnv *jni_env;
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int jni_exception;
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jobject jniResults;
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char *outv_buffer;
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char *outv_current;
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char *outv_limit;
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#endif
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void *context;
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};
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struct cli_schema {
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int (*function)(const struct cli_parsed *parsed, struct cli_context *context);
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const char *words[COMMAND_LINE_MAX_LABELS];
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uint64_t flags;
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#define CLIFLAG_PERMISSIVE_CONFIG (1<<0) /* Accept defective configuration file */
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const char *description; // describe this invocation
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};
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struct cli_parsed {
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const struct cli_schema *commands;
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const struct cli_schema *end_commands;
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unsigned int cmdi;
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struct labelv {
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const char *label;
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unsigned int len;
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const char *text;
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} labelv[COMMAND_LINE_MAX_LABELS];
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unsigned labelc;
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const char *const *args;
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unsigned argc;
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int varargi; // -1 means no var args
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};
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void _debug_cli_parsed(struct __sourceloc __whence, const char *tag, const struct cli_parsed *parsed);
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#define DEBUG_cli_parsed(FLAG,parsed) do { if (IF_DEBUG(FLAG)) _debug_cli_parsed(__WHENCE__, "{" #FLAG "}", parsed); } while (0)
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int cli_usage(const struct cli_schema *commands, const struct cli_schema *end_commands, XPRINTF xpf);
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int cli_usage_args(const int argc, const char *const *args, const struct cli_schema *commands, const struct cli_schema *end_commands, XPRINTF xpf);
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int cli_usage_parsed(const struct cli_parsed *parsed, XPRINTF xpf);
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int cli_parse(const int argc, const char *const *args, const struct cli_schema *commands, const struct cli_schema *end_commands, struct cli_parsed *parsed);
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int cli_invoke(const struct cli_parsed *parsed, struct cli_context *context);
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/* First, assign 'defaultvalue' to '*dst', to guarantee that '*dst' is in a
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* known state regardless of the return value and provide the caller with an
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* alternative way to check if an argument was found.
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*
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* Then, if there is an argument labelled 'label' present on the 'parsed'
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* command line:
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* - if a validator function was supplied (not NULL) and it returns false (0)
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* when invoked on '*dst', return -1, otherwise
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* - assign the argument's value as a NUL-terminated string to '*dst' and
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* return 0.
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*
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* Otherwise, there is no argument labelled 'label', so return 1.
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*/
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#define cli_arg(parsed, label, dst, validator, defaultvalue) _cli_arg(__WHENCE__, parsed, label, dst, validator, defaultvalue)
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int _cli_arg(struct __sourceloc __whence, const struct cli_parsed *parsed, char *label, const char **dst, int (*validator)(const char *arg), char *defaultvalue);
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int cli_lookup_did(const char *text);
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int cli_path_regular(const char *arg);
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int cli_absolute_path(const char *arg);
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int cli_optional_sid(const char *arg);
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int cli_optional_bundle_secret_key(const char *arg);
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int cli_bid(const char *arg);
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int cli_optional_bid(const char *arg);
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int cli_fileid(const char *arg);
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int cli_optional_bundle_crypt_key(const char *arg);
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int cli_interval_ms(const char *arg);
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int cli_uint(const char *arg);
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int cli_optional_did(const char *text);
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#endif // __SERVAL_DNA__CLI_H
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