+++ /dev/null
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-/*
- * Ceph - scalable distributed file system
- *
- * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
- *
- * This is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License version 2.1, as published by the Free Software
- * Foundation. See file COPYING.
- *
- */
-
-#include "auth/Auth.h"
-#include "common/ceph_argparse.h"
-#include "common/config.h"
-#include "common/version.h"
-#include "include/str_list.h"
-
-/*
- * Ceph argument parsing library
- *
- * We probably should eventually replace this with something standard like popt.
- * Until we do that, though, this file is the place for argv parsing
- * stuff to live.
- */
-
-#undef dout
-#undef pdout
-#undef derr
-#undef generic_dout
-#undef dendl
-
-struct strict_str_convert {
- const char *str;
- std::string *err;
- strict_str_convert(const char *str, std::string *err)
- : str(str), err(err) {}
-
- inline operator float() const
- {
- return strict_strtof(str, err);
- }
- inline operator int() const
- {
- return strict_strtol(str, 10, err);
- }
- inline operator long long() const
- {
- return strict_strtoll(str, 10, err);
- }
-};
-
-void string_to_vec(std::vector<std::string>& args, std::string argstr)
-{
- istringstream iss(argstr);
- while(iss) {
- string sub;
- iss >> sub;
- if (sub == "") break;
- args.push_back(sub);
- }
-}
-
-bool split_dashdash(const std::vector<const char*>& args,
- std::vector<const char*>& options,
- std::vector<const char*>& arguments) {
- bool dashdash = false;
- for (std::vector<const char*>::const_iterator i = args.begin();
- i != args.end();
- ++i) {
- if (dashdash) {
- arguments.push_back(*i);
- } else {
- if (strcmp(*i, "--") == 0)
- dashdash = true;
- else
- options.push_back(*i);
- }
- }
- return dashdash;
-}
-
-void env_to_vec(std::vector<const char*>& args, const char *name)
-{
- if (!name)
- name = "CEPH_ARGS";
- char *p = getenv(name);
- if (!p)
- return;
-
- bool dashdash = false;
- std::vector<const char*> options;
- std::vector<const char*> arguments;
- if (split_dashdash(args, options, arguments))
- dashdash = true;
-
- std::vector<const char*> env_options;
- std::vector<const char*> env_arguments;
- static vector<string> str_vec;
- std::vector<const char*> env;
- str_vec.clear();
- get_str_vec(p, " ", str_vec);
- for (vector<string>::iterator i = str_vec.begin();
- i != str_vec.end();
- ++i)
- env.push_back(i->c_str());
- if (split_dashdash(env, env_options, env_arguments))
- dashdash = true;
-
- args.clear();
- args.insert(args.end(), options.begin(), options.end());
- args.insert(args.end(), env_options.begin(), env_options.end());
- if (dashdash)
- args.push_back("--");
- args.insert(args.end(), arguments.begin(), arguments.end());
- args.insert(args.end(), env_arguments.begin(), env_arguments.end());
-}
-
-void argv_to_vec(int argc, const char **argv,
- std::vector<const char*>& args)
-{
- args.insert(args.end(), argv + 1, argv + argc);
-}
-
-void vec_to_argv(const char *argv0, std::vector<const char*>& args,
- int *argc, const char ***argv)
-{
- *argv = (const char**)malloc(sizeof(char*) * (args.size() + 1));
- if (!*argv)
- throw bad_alloc();
- *argc = 1;
- (*argv)[0] = argv0;
-
- for (unsigned i=0; i<args.size(); i++)
- (*argv)[(*argc)++] = args[i];
-}
-
-void ceph_arg_value_type(const char * nextargstr, bool *bool_option, bool *bool_numeric)
-{
- bool is_numeric = true;
- bool is_float = false;
- bool is_option;
-
- if (nextargstr == NULL) {
- return;
- }
-
- if (strlen(nextargstr) < 2) {
- is_option = false;
- } else {
- is_option = (nextargstr[0] == '-') && (nextargstr[1] == '-');
- }
-
- for (unsigned int i = 0; i < strlen(nextargstr); i++) {
- if (!(nextargstr[i] >= '0' && nextargstr[i] <= '9')) {
- // May be negative numeral value
- if ((i == 0) && (strlen(nextargstr) >= 2)) {
- if (nextargstr[0] == '-')
- continue;
- }
- if ( (nextargstr[i] == '.') && (is_float == false) ) {
- is_float = true;
- continue;
- }
-
- is_numeric = false;
- break;
- }
- }
-
- // -<option>
- if (nextargstr[0] == '-' && is_numeric == false) {
- is_option = true;
- }
-
- *bool_option = is_option;
- *bool_numeric = is_numeric;
-
- return;
-}
-
-bool parse_ip_port_vec(const char *s, vector<entity_addr_t>& vec)
-{
- const char *p = s;
- const char *end = p + strlen(p);
- while (p < end) {
- entity_addr_t a;
- //cout << " parse at '" << p << "'" << std::endl;
- if (!a.parse(p, &p)) {
- //dout(0) << " failed to parse address '" << p << "'" << dendl;
- return false;
- }
- //cout << " got " << a << ", rest is '" << p << "'" << std::endl;
- vec.push_back(a);
- while (*p == ',' || *p == ' ' || *p == ';')
- p++;
- }
- return true;
-}
-
-// The defaults for CephInitParameters
-CephInitParameters::CephInitParameters(uint32_t module_type_)
- : module_type(module_type_)
-{
- name.set(module_type, "admin");
-}
-
-static void dashes_to_underscores(const char *input, char *output)
-{
- char c = 0;
- char *o = output;
- const char *i = input;
- // first two characters are copied as-is
- *o = *i++;
- if (*o++ == '\0')
- return;
- *o = *i++;
- if (*o++ == '\0')
- return;
- for (; ((c = *i)); ++i) {
- if (c == '=') {
- strcpy(o, i);
- return;
- }
- if (c == '-')
- *o++ = '_';
- else
- *o++ = c;
- }
- *o++ = '\0';
-}
-
-/** Once we see a standalone double dash, '--', we should remove it and stop
- * looking for any other options and flags. */
-bool ceph_argparse_double_dash(std::vector<const char*> &args,
- std::vector<const char*>::iterator &i)
-{
- if (strcmp(*i, "--") == 0) {
- i = args.erase(i);
- return true;
- }
- return false;
-}
-
-bool ceph_argparse_flag(std::vector<const char*> &args,
- std::vector<const char*>::iterator &i, ...)
-{
- const char *first = *i;
- char tmp[strlen(first)+1];
- dashes_to_underscores(first, tmp);
- first = tmp;
- va_list ap;
-
- va_start(ap, i);
- while (1) {
- const char *a = va_arg(ap, char*);
- if (a == NULL) {
- va_end(ap);
- return false;
- }
- char a2[strlen(a)+1];
- dashes_to_underscores(a, a2);
- if (strcmp(a2, first) == 0) {
- i = args.erase(i);
- va_end(ap);
- return true;
- }
- }
-}
-
-static bool va_ceph_argparse_binary_flag(std::vector<const char*> &args,
- std::vector<const char*>::iterator &i, int *ret,
- std::ostream *oss, va_list ap)
-{
- const char *first = *i;
- char tmp[strlen(first)+1];
- dashes_to_underscores(first, tmp);
- first = tmp;
-
- // does this argument match any of the possibilities?
- while (1) {
- const char *a = va_arg(ap, char*);
- if (a == NULL)
- return false;
- int strlen_a = strlen(a);
- char a2[strlen_a+1];
- dashes_to_underscores(a, a2);
- if (strncmp(a2, first, strlen(a2)) == 0) {
- if (first[strlen_a] == '=') {
- i = args.erase(i);
- const char *val = first + strlen_a + 1;
- if ((strcmp(val, "true") == 0) || (strcmp(val, "1") == 0)) {
- *ret = 1;
- return true;
- }
- else if ((strcmp(val, "false") == 0) || (strcmp(val, "0") == 0)) {
- *ret = 0;
- return true;
- }
- if (oss) {
- (*oss) << "Parse error parsing binary flag " << a
- << ". Expected true or false, but got '" << val << "'\n";
- }
- *ret = -EINVAL;
- return true;
- }
- else if (first[strlen_a] == '\0') {
- i = args.erase(i);
- *ret = 1;
- return true;
- }
- }
- }
-}
-
-bool ceph_argparse_binary_flag(std::vector<const char*> &args,
- std::vector<const char*>::iterator &i, int *ret,
- std::ostream *oss, ...)
-{
- bool r;
- va_list ap;
- va_start(ap, oss);
- r = va_ceph_argparse_binary_flag(args, i, ret, oss, ap);
- va_end(ap);
- return r;
-}
-
-static int va_ceph_argparse_witharg(std::vector<const char*> &args,
- std::vector<const char*>::iterator &i, std::string *ret,
- std::ostream &oss, va_list ap)
-{
- const char *first = *i;
- char tmp[strlen(first)+1];
- dashes_to_underscores(first, tmp);
- first = tmp;
-
- // does this argument match any of the possibilities?
- while (1) {
- const char *a = va_arg(ap, char*);
- if (a == NULL)
- return 0;
- int strlen_a = strlen(a);
- char a2[strlen_a+1];
- dashes_to_underscores(a, a2);
- if (strncmp(a2, first, strlen(a2)) == 0) {
- if (first[strlen_a] == '=') {
- *ret = first + strlen_a + 1;
- i = args.erase(i);
- return 1;
- }
- else if (first[strlen_a] == '\0') {
- // find second part (or not)
- if (i+1 == args.end()) {
- oss << "Option " << *i << " requires an argument." << std::endl;
- i = args.erase(i);
- return -EINVAL;
- }
- i = args.erase(i);
- *ret = *i;
- i = args.erase(i);
- return 1;
- }
- }
- }
-}
-
-template<class T>
-bool ceph_argparse_witharg(std::vector<const char*> &args,
- std::vector<const char*>::iterator &i, T *ret,
- std::ostream &oss, ...)
-{
- int r;
- va_list ap;
- bool is_option = false;
- bool is_numeric = true;
- std::string str;
- va_start(ap, oss);
- r = va_ceph_argparse_witharg(args, i, &str, oss, ap);
- va_end(ap);
- if (r == 0) {
- return false;
- } else if (r < 0) {
- return true;
- }
-
- ceph_arg_value_type(str.c_str(), &is_option, &is_numeric);
- if ((is_option == true) || (is_numeric == false)) {
- *ret = EXIT_FAILURE;
- if (is_option == true) {
- oss << "Missing option value";
- } else {
- oss << "The option value '" << str << "' is invalid";
- }
- return true;
- }
-
- std::string err;
- T myret = strict_str_convert(str.c_str(), &err);
- *ret = myret;
- if (!err.empty()) {
- oss << err;
- }
- return true;
-}
-
-template bool ceph_argparse_witharg<int>(std::vector<const char*> &args,
- std::vector<const char*>::iterator &i, int *ret,
- std::ostream &oss, ...);
-
-template bool ceph_argparse_witharg<long long>(std::vector<const char*> &args,
- std::vector<const char*>::iterator &i, long long *ret,
- std::ostream &oss, ...);
-
-template bool ceph_argparse_witharg<float>(std::vector<const char*> &args,
- std::vector<const char*>::iterator &i, float *ret,
- std::ostream &oss, ...);
-
-bool ceph_argparse_witharg(std::vector<const char*> &args,
- std::vector<const char*>::iterator &i, std::string *ret,
- std::ostream &oss, ...)
-{
- int r;
- va_list ap;
- va_start(ap, oss);
- r = va_ceph_argparse_witharg(args, i, ret, oss, ap);
- va_end(ap);
- return r != 0;
-}
-
-bool ceph_argparse_witharg(std::vector<const char*> &args,
- std::vector<const char*>::iterator &i, std::string *ret, ...)
-{
- int r;
- va_list ap;
- va_start(ap, ret);
- r = va_ceph_argparse_witharg(args, i, ret, cerr, ap);
- va_end(ap);
- if (r < 0)
- _exit(1);
- return r != 0;
-}
-
-CephInitParameters ceph_argparse_early_args
- (std::vector<const char*>& args, uint32_t module_type,
- std::string *cluster, std::string *conf_file_list)
-{
- CephInitParameters iparams(module_type);
- std::string val;
-
- vector<const char *> orig_args = args;
-
- for (std::vector<const char*>::iterator i = args.begin(); i != args.end(); ) {
- if (strcmp(*i, "--") == 0) {
- /* Normally we would use ceph_argparse_double_dash. However, in this
- * function we *don't* want to remove the double dash, because later
- * argument parses will still need to see it. */
- break;
- }
- else if (ceph_argparse_flag(args, i, "--version", "-v", (char*)NULL)) {
- cout << pretty_version_to_str() << std::endl;
- _exit(0);
- }
- else if (ceph_argparse_witharg(args, i, &val, "--conf", "-c", (char*)NULL)) {
- *conf_file_list = val;
- }
- else if (ceph_argparse_witharg(args, i, &val, "--cluster", (char*)NULL)) {
- *cluster = val;
- }
- else if ((module_type != CEPH_ENTITY_TYPE_CLIENT) &&
- (ceph_argparse_witharg(args, i, &val, "-i", (char*)NULL))) {
- iparams.name.set_id(val);
- }
- else if (ceph_argparse_witharg(args, i, &val, "--id", "--user", (char*)NULL)) {
- iparams.name.set_id(val);
- }
- else if (ceph_argparse_witharg(args, i, &val, "--name", "-n", (char*)NULL)) {
- if (!iparams.name.from_str(val)) {
- cerr << "error parsing '" << val << "': expected string of the form TYPE.ID, "
- << "valid types are: " << EntityName::get_valid_types_as_str()
- << std::endl;
- _exit(1);
- }
- }
- else if (ceph_argparse_flag(args, i, "--show_args", (char*)NULL)) {
- cout << "args: ";
- for (std::vector<const char *>::iterator ci = orig_args.begin(); ci != orig_args.end(); ++ci) {
- if (ci != orig_args.begin())
- cout << " ";
- cout << *ci;
- }
- cout << std::endl;
- }
- else {
- // ignore
- ++i;
- }
- }
- return iparams;
-}
-
-static void generic_usage(bool is_server)
-{
- cout << "\
- --conf/-c FILE read configuration from the given configuration file\n\
- --id/-i ID set ID portion of my name\n\
- --name/-n TYPE.ID set name\n\
- --cluster NAME set cluster name (default: ceph)\n\
- --setuser USER set uid to user or uid (and gid to user's gid)\n\
- --setgroup GROUP set gid to group or gid\n\
- --version show version and quit\n\
-" << std::endl;
-
- if (is_server) {
- cout << "\
- -d run in foreground, log to stderr.\n\
- -f run in foreground, log to usual location.\n";
- cout << "\
- --debug_ms N set message debug level (e.g. 1)\n";
- }
-
- cout.flush();
-}
-
-void generic_server_usage()
-{
- generic_usage(true);
- exit(1);
-}
-void generic_client_usage()
-{
- generic_usage(false);
- exit(1);
-}
Code Review / stor4nfv.git / blobdiff