| /************************************************************************ |
| * |
| * cmdopt.cpp - Definitions of the option parsing subsystem |
| * |
| * $Id$ |
| * |
| ************************************************************************ |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed |
| * with this work for additional information regarding copyright |
| * ownership. The ASF licenses this file to you under the Apache |
| * License, Version 2.0 (the "License"); you may not use this file |
| * except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
| * implied. See the License for the specific language governing |
| * permissions and limitations under the License. |
| * |
| **************************************************************************/ |
| |
| /* disable Compaq/HP C++ pure libc headers to allow POSIX symbols |
| such as SIGALRM or SIGKILL to be defined.*/ |
| #undef __PURE_CNAME |
| |
| #include <assert.h> /* for assert() */ |
| #include <ctype.h> /* for isspace */ |
| #include <errno.h> /* for errno */ |
| #include <signal.h> /* for raise, signal, SIG_IGN */ |
| #include <stdio.h> /* for *printf, fputs */ |
| #include <stdlib.h> /* for exit */ |
| #include <string.h> /* for str* */ |
| #if !defined (_WIN32) && !defined (_WIN64) |
| # include <unistd.h> /* for sleep */ |
| |
| # if defined (_XOPEN_UNIX) |
| # include <sys/resource.h> /* for struct rlimit, RLIMIT_CORE, ... */ |
| # endif |
| |
| #else |
| # include <windows.h> /* for Sleep */ |
| #endif /* _WIN{32,64} */ |
| |
| #include "exec.h" |
| #include "target.h" |
| #include "util.h" |
| |
| #include "cmdopt.h" |
| |
| const char* exe_name; /**< Alias for process argv [0]. */ |
| #if !defined (_WIN32) && !defined (_WIN64) |
| const char escape_code = '\\'; |
| const char default_path_sep = '/'; |
| const char suffix_sep = '.'; |
| const size_t exe_suffix_len = 0; |
| #if defined (_SC_CLK_TCK) |
| const float TICKS_PER_SEC = sysconf (_SC_CLK_TCK); |
| #elif defined (CLK_TCK) |
| const float TICKS_PER_SEC = CLK_TCK; |
| #elif defined (CLOCKS_PER_SEC) |
| const float TICKS_PER_SEC = CLOCKS_PER_SEC; |
| #else |
| # error Unable to determine number of clock ticks in a second. |
| #endif |
| #else |
| const char escape_code = '^'; |
| const char default_path_sep = '\\'; |
| const char suffix_sep = '.'; |
| const size_t exe_suffix_len = 4; /* strlen(".exe") == 4 */ |
| const float TICKS_PER_SEC = 10000000; /* 100 nanosecond units in a second */ |
| #endif |
| |
| static const char |
| usage_text[] = { |
| "Usage: %s [OPTIONS] [targets]\n" |
| "\n" |
| " Treats each token in targets as the path to an executable. Each target\n" |
| " enumerated is executed, and the output is processed after termination.\n" |
| " If the execution takes longer than a certain (configurable) amount of\n" |
| " time, the process is killed.\n" |
| "\n" |
| " -d dir Specify root directory for output reference files.\n" |
| " -h, -? Display usage information and exit.\n" |
| " -t seconds Set timeout before killing target (default is 10\n" |
| " seconds).\n" |
| " -x opts Specify command line options to pass to targets.\n" |
| " -- Terminate option processing and treat all arguments\n" |
| " that follow as targets.\n" |
| " --compat Use compatability mode test output parsing.\n" |
| " --nocompat Use standard test output parsing (default).\n" |
| " --help Display usage information and exit.\n" |
| " --exit=val Exit immediately with the specified return code.\n" |
| " --sleep=sec Sleep for the specified number of seconds.\n" |
| " --signal=sig Send itself the specified signal.\n" |
| " --ignore=sig Ignore the specified signal.\n" |
| " --ulimit=lim Set child process usage limits (see below).\n" |
| " --warn=alias Set compiler log warning pattern (see below).\n" |
| "\n" |
| " All short (single dash) options must be specified seperately.\n" |
| " If a short option takes a value, it may either be provided like\n" |
| " '-sval' or '-s val'.\n" |
| " If a long option take a value, it may either be provided like\n" |
| " '--option=value' or '--option value'.\n" |
| "\n" |
| " --ulimit sets limits on how much of a given resource or resorces\n" |
| " child processes are allowed to utilize. These limits take on two\n" |
| " forms, 'soft' and 'hard' limits. Options are specified in the form\n" |
| " 'resource:limit', where resource is a resource named below, and and\n" |
| " limit is a number, with value specifing the limit for the named\n" |
| " resource. If multiple limits are to be set, they can be specified\n" |
| " either in multiple instances of the --ulimit switch, or by specifying\n" |
| " additional limits in the same call by seperating the pairs with\n" |
| " commas. 'Soft' limits are specified by providing the resource name\n" |
| " in lowercase letters, while 'hard' limits are specified by providing\n" |
| " the resource name in uppercase letters. To set both limits, specify\n" |
| " the resource name in title case.\n" |
| "\n" |
| " --ulimit modes:\n" |
| " core Maximum size of core file, in bytes.\n" |
| " cpu Maximum CPU time, in seconds.\n" |
| " data Maximum data segment size, in bytes.\n" |
| " fsize Maximum size of generated files, in bytes.\n" |
| " nofile Maximum number of open file descriptors.\n" |
| " stack Maximum size of initial thread's stack, in bytes.\n" |
| " as Maximum size of available memory, in bytes.\n" |
| "\n" |
| " Note: Some operating systems lack support for some or all of the\n" |
| " ulimit modes. If a system is unable to limit a given property, a\n" |
| " warning message will be produced.\n" |
| "\n" |
| " --warn set the string used to parse compile and link logs. Rather\n" |
| " than specifying a search string, an alias code is provided,\n" |
| " coresponding to the output of a compiler and linker. Alias codes\n" |
| " are case sensitive.\n" |
| "\n" |
| " --warn modes:\n" |
| " acc HP aCC\n" |
| " cxx Compaq C++\n" |
| " eccp EDG eccp\n" |
| " gcc GNU gcc\n" |
| " icc Intel icc for Linux\n" |
| " mipspro SGI MIPSpro\n" |
| " sunpro Sun C++\n" |
| " vacpp IBM VisualAge C++\n" |
| " xlc IBM XLC++\n" |
| }; |
| |
| #if !defined (_WIN32) && !defined (_WIN64) |
| |
| static void |
| rw_sleep (int seconds) |
| { |
| sleep (seconds); |
| } |
| |
| |
| #ifdef __cplusplus |
| |
| extern "C" { |
| |
| #endif /* __cplusplus */ |
| |
| static int |
| rw_signal (int signo, void (*func)(int)) |
| { |
| struct sigaction act; |
| memset (&act, 0, sizeof act); |
| |
| /* avoid extern "C"/"C++" mismatch due to an HP aCC 6 bug |
| (see STDCXX-291) */ |
| if (func) |
| memcpy (&act.sa_handler, &func, sizeof func); |
| else |
| act.sa_handler = 0; |
| |
| return 0 > sigaction (signo, &act, 0); |
| } |
| |
| #ifdef __cplusplus |
| |
| } /* extern "C" */ |
| |
| #endif /* __cplusplus */ |
| |
| #else /* if defined (_WIN32) || defined (_WIN64) */ |
| |
| static void |
| rw_sleep (int seconds) |
| { |
| Sleep (seconds * 1000); |
| } |
| |
| |
| static int |
| rw_signal (int signo, void (*func)(int)) |
| { |
| return SIG_ERR == signal (signo, func); |
| } |
| |
| #endif /* _WIN{32,64}*/ |
| |
| /** |
| Display command line switches for program and terminate. |
| |
| @param status status code to exit with. |
| */ |
| static void |
| show_usage (int status) |
| { |
| FILE* const where = status ? stderr : stdout; |
| |
| assert (0 != exe_name); |
| |
| fprintf (where, usage_text, exe_name); |
| |
| exit (status); |
| } |
| |
| /** |
| Helper function to read the value for a short option |
| |
| @param argv argument array |
| @param idx reference to index for option |
| */ |
| static char* |
| get_short_val (char* const* argv, int* idx) |
| { |
| assert (0 != argv); |
| assert (0 != idx); |
| |
| if ('\0' == argv [*idx][2]) |
| return argv [++(*idx)]; |
| else |
| return argv [*idx] + 2; |
| } |
| |
| /** |
| Helper function to read the value for a long option |
| |
| @param argv argument array |
| @param idx reference to index for option |
| @param offset length of option name (including leading --) |
| */ |
| static char* |
| get_long_val (char* const* argv, int* idx, unsigned offset) |
| { |
| assert (0 != argv); |
| assert (0 != idx); |
| |
| if ('\0' == argv [*idx][offset]) |
| return argv [++(*idx)]; |
| else if ('=' == argv [*idx][offset]) |
| return argv [*idx] + offset + 1; |
| else |
| return (char*)0; |
| } |
| |
| /** |
| Helper function to parse a ulimit value string |
| |
| @param opts ulimit value string to pares |
| @see child_limits |
| */ |
| static bool |
| parse_limit_opts (const char* opts, struct target_opts* defaults) |
| { |
| static const struct { |
| rw_rlimit** limit; |
| const char* name; |
| const char* caps; |
| const char* mixd; |
| size_t len; |
| } limits[] = { |
| { |
| #ifdef RLIMIT_CORE |
| &defaults->core, |
| #else |
| 0, |
| #endif /* RLIMIT_CORE */ |
| "core", "CORE", "Core", 4 }, |
| { |
| #ifdef RLIMIT_CPU |
| &defaults->cpu, |
| #else |
| 0, |
| #endif /* RLIMIT_CPU */ |
| "cpu", "CPU", "Cpu", 3 }, |
| { |
| #ifdef RLIMIT_DATA |
| &defaults->data, |
| #else |
| 0, |
| #endif /* RLIMIT_DATA */ |
| "data", "DATA", "Data", 4 }, |
| { |
| #ifdef RLIMIT_FSIZE |
| &defaults->fsize, |
| #else |
| 0, |
| #endif /* RLIMIT_FSIZE */ |
| "fsize", "FSIZE", "Fsize", 5 }, |
| { |
| #ifdef RLIMIT_NOFILE |
| &defaults->nofile, |
| #else |
| 0, |
| #endif /* RLIMIT_NOFILE */ |
| "nofile", "NOFILE", "Nofile", 6 }, |
| { |
| #ifdef RLIMIT_STACK |
| &defaults->stack, |
| #else |
| 0, |
| #endif /* RLIMIT_STACK */ |
| "stack", "STACK", "Stack", 5 }, |
| { |
| #ifdef RLIMIT_AS |
| &defaults->as, |
| #else |
| 0, |
| #endif /* RLIMIT_AS */ |
| "as", "AS", "As", 2 }, |
| { 0, 0, 0, 0, 0 } |
| }; |
| |
| const char* arg = opts; |
| |
| assert (0 != opts); |
| |
| while (arg && *arg) { |
| |
| const size_t arglen = strlen (arg); |
| |
| for (size_t i = 0; limits [i].name; ++i) { |
| if ( limits [i].len < arglen |
| && ( 0 == memcmp (limits [i].name, arg, limits [i].len) |
| || 0 == memcmp (limits [i].caps, arg, limits [i].len) |
| || 0 == memcmp (limits [i].mixd, arg, limits [i].len)) |
| && ':' == arg [limits [i].len]) { |
| |
| /* determine whether the hard limit and/or the soft limit |
| should be set. */ |
| const bool hard = isupper (arg [0]); |
| const bool soft = islower (arg [1]); |
| |
| arg += limits [i].len + 1; |
| |
| if (!isdigit (*arg)) { |
| return 1; |
| } |
| |
| char *end; |
| const long lim = strtol (arg, &end, 10); |
| |
| arg = end; |
| |
| if ('\0' != *arg && ',' != *arg) |
| break; |
| |
| if (limits [i].limit) { |
| if (!*limits [i].limit) { |
| (*limits [i].limit) = |
| (rw_rlimit*)RW_MALLOC (sizeof (rw_rlimit)); |
| (*limits [i].limit)->rlim_cur = RLIM_SAVED_CUR; |
| (*limits [i].limit)->rlim_max = RLIM_SAVED_MAX; |
| } |
| if (soft) |
| (*limits [i].limit)->rlim_cur = lim; |
| |
| if (hard) |
| (*limits [i].limit)->rlim_max = lim; |
| } |
| else |
| warn ("Unable to process %s limit: Not supported\n", |
| limits [i].name); |
| break; |
| } |
| } |
| |
| if (',' == *arg) { |
| ++arg; |
| } |
| else if ('\0' != *arg) { |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| /** |
| Helper function to parse a warning value string |
| |
| @param opts ulimit value string to pares |
| @see child_limits |
| */ |
| static bool |
| parse_warn_opts (const char* arg, struct target_opts* defaults) |
| { |
| static const struct { |
| const char* name; |
| const char* pat; |
| } warn_set [] = { |
| { "acc", "Warning " }, |
| /* |
| { "cds", "UNKNOWN"}, |
| { "como", "UNKNOWN"}, |
| */ |
| { "cxx", "Warning:"}, |
| { "eccp", "warning:"}, |
| { "gcc", "warning:"}, |
| { "icc", "warning #"}, |
| { "mipspro", "CC: WARNING"}, |
| { "sunpro", "Warning:"}, |
| { "vacpp", ": (W) "}, |
| { "xlc", ": (W) "}, /* xlc and vacpp are synonyms. */ |
| { 0, 0 } |
| }; |
| |
| assert (0 != arg); |
| assert (0 != defaults); |
| |
| for (size_t i = 0; warn_set [i].name; ++i) { |
| if (0 == strcmp (warn_set [i].name, arg)) { |
| |
| /* Set both compiler and linker warning string. */ |
| defaults->c_warn = warn_set [i].pat; |
| defaults->l_warn = warn_set [i].pat; |
| |
| return 0; |
| } |
| } |
| |
| return 1; |
| } |
| |
| /** |
| Helper function to produce 'Bad argument' error message. |
| |
| @param opt name of option encountered |
| @param val invalid value found |
| */ |
| static void |
| bad_value (const char* opt, const char* val) |
| { |
| assert (0 != opt); |
| |
| terminate (1, "Bad argument for %s: %s\n", opt, val); |
| } |
| |
| /** |
| Helper function to produce 'Missing argument' error message. |
| |
| @param opt name of option missing argument |
| */ |
| static void |
| missing_value (const char* opt) |
| { |
| assert (0 != opt); |
| |
| terminate (1, "Missing argument for %s\n", opt); |
| } |
| |
| /** |
| Helper function to produce 'Unknown option' error message. |
| |
| @param opt name of option encountered |
| */ |
| static void |
| bad_option (const char* opt) |
| { |
| assert (0 != opt); |
| |
| warn ("Unknown option: %s\n", opt); |
| |
| show_usage (1); |
| } |
| |
| int |
| eval_options (int argc, char **argv, struct target_opts* defaults, |
| const char** exe_opts) |
| { |
| const char opt_timeout[] = "-t"; |
| const char opt_data_dir[] = "-d"; |
| const char opt_t_flags[] = "-x"; |
| const char opt_compat[] = "--compat"; |
| const char opt_exit[] = "--exit"; |
| const char opt_help[] = "--help"; |
| const char opt_ignore[] = "--ignore"; |
| const char opt_nocompat[] = "--nocompat"; |
| const char opt_signal[] = "--signal"; |
| const char opt_sleep[] = "--sleep"; |
| const char opt_ulimit[] = "--ulimit"; |
| const char opt_warn[] = "--warn"; |
| |
| int i; |
| |
| assert (0 != argv); |
| |
| /* The chain of preprocesor logic below initializes the defaults->c_warn |
| and defaults->l_warn values. |
| */ |
| #ifdef __GNUG__ |
| parse_warn_opts ("Gcc", defaults); |
| #elif defined (__HP_aCC) |
| parse_warn_opts ("Acc", defaults); |
| #elif defined (__IBMCPP__) |
| parse_warn_opts ("Xlc", defaults); |
| #elif defined (__SUNPRO_CC) |
| parse_warn_opts ("Sunpro", defaults); |
| #elif defined (SNI) |
| parse_warn_opts ("Cds", defaults); |
| #elif defined (__APOGEE__) /* EDG variant that doesn't define __EDG__. */ |
| parse_warn_opts ("Como", defaults); |
| |
| /* The following are EDG variants, that define __EDG__ */ |
| #elif defined (__DECCXX) |
| parse_warn_opts ("Cxx", defaults); |
| #elif defined (_SGI_COMPILER_VERSION) |
| parse_warn_opts ("Mipspro", defaults); |
| #elif defined (__INTEL_COMPILER) |
| parse_warn_opts ("Icc", defaults); |
| |
| /* So we need to check for __EDG__ after we check for them. */ |
| #elif defined (__EDG__) |
| parse_warn_opts ("Eccp", defaults); |
| #endif |
| |
| if (1 == argc || '-' != argv [1][0]) |
| return 1; |
| |
| for (i = 1; i < argc && '-' == argv [i][0]; ++i) { |
| |
| /* the name of the option being processed */ |
| const char* optname = argv [i]; |
| |
| /* the option's argument, if any */ |
| const char* optarg = 0; |
| |
| char* end = 0; |
| |
| switch (argv [i][1]) { |
| case '?': |
| case 'h': |
| show_usage (0); |
| case 'r': |
| ++i; /* Ignore -r option (makefile compat) */ |
| break; |
| case 't': |
| optname = opt_timeout; |
| optarg = get_short_val (argv, &i); |
| if (optarg) { |
| if (!isdigit (*optarg)) |
| bad_value (optname, optarg); |
| |
| errno = 0; |
| defaults->timeout = strtol (optarg, &end, 10); |
| if (*end || errno) |
| bad_value (optname, optarg); |
| } |
| else |
| missing_value (optname); |
| |
| break; |
| |
| case 'd': |
| optname = opt_data_dir; |
| defaults->data_dir = get_short_val (argv, &i); |
| if (!defaults->data_dir) |
| missing_value (optname); |
| break; |
| case 'x': |
| optname = opt_t_flags; |
| *exe_opts = get_short_val (argv, &i); |
| if (!*exe_opts) |
| missing_value (optname); |
| break; |
| case '-': |
| { |
| const size_t arglen = strlen (argv [i]); |
| |
| /* abort processing on --, eat token */ |
| if ('\0' == argv [i][2]) |
| return i+1; |
| |
| if ( sizeof opt_compat - 1 == arglen |
| && !memcmp (opt_compat, argv [i], sizeof opt_compat)) { |
| defaults->compat = 1; |
| break; |
| } |
| else if ( sizeof opt_nocompat - 1 == arglen |
| && !memcmp (opt_nocompat, argv [i], sizeof opt_nocompat)) { |
| defaults->compat = 0; |
| break; |
| } |
| else if ( sizeof opt_exit - 1 <= arglen |
| && !memcmp (opt_exit, argv [i], sizeof opt_exit - 1)) { |
| optname = opt_exit; |
| optarg = get_long_val (argv, &i, sizeof opt_exit - 1); |
| if (optarg && *optarg) { |
| if (!isdigit (*optarg)) |
| bad_value (optname, optarg); |
| |
| errno = 0; |
| const long code = strtol (optarg, &end, 10); |
| if ('\0' == *end && !errno) |
| exit (code); |
| } |
| } |
| else if ( sizeof opt_help - 1 == arglen |
| && !memcmp (opt_help, argv [i], sizeof opt_help - 1)) { |
| optname = opt_help; |
| show_usage (0); |
| break; |
| } |
| else if ( sizeof opt_sleep - 1 <= arglen |
| && !memcmp (opt_sleep, argv [i], sizeof opt_sleep - 1)) { |
| optname = opt_sleep; |
| optarg = get_long_val (argv, &i, sizeof opt_sleep - 1); |
| if (optarg && *optarg) { |
| if (!isdigit (*optarg)) |
| bad_value (optname, optarg); |
| |
| errno = 0; |
| const long nsec = strtol (optarg, &end, 10); |
| if ('\0' == *end && 0 <= nsec && !errno) { |
| rw_sleep (nsec); |
| break; |
| } |
| } |
| } |
| else if ( sizeof opt_signal - 1 <= arglen |
| && !memcmp (opt_signal, argv [i], sizeof opt_signal - 1)) { |
| optname = opt_signal; |
| optarg = get_long_val (argv, &i, sizeof opt_signal - 1); |
| if (optarg && *optarg) { |
| const int signo = get_signo (optarg); |
| if (0 <= signo) { |
| if (0 > raise (signo)) |
| terminate (1, "raise(%s) failed: %s\n", |
| get_signame (signo), strerror (errno)); |
| break; |
| } |
| } |
| } |
| else if ( sizeof opt_ignore - 1 <= arglen |
| && !memcmp (opt_ignore, argv [i], sizeof opt_ignore - 1)) { |
| optname = opt_ignore; |
| optarg = get_long_val (argv, &i, sizeof opt_ignore - 1); |
| if (optarg && *optarg) { |
| const int signo = get_signo (optarg); |
| if (0 <= signo) { |
| if (rw_signal (signo, 0 /* SIG_IGN */)) |
| terminate (1, "rw_signal(%s, ...) failed: %s\n", |
| get_signame (signo), strerror (errno)); |
| break; |
| } |
| } |
| } |
| else if ( sizeof opt_ulimit - 1 <= arglen |
| && !memcmp (opt_ulimit, argv [i], sizeof opt_ulimit - 1)) { |
| optname = opt_ulimit; |
| optarg = get_long_val (argv, &i, sizeof opt_ulimit - 1); |
| if (optarg && *optarg) { |
| if (!parse_limit_opts (optarg, defaults)) { |
| break; |
| } |
| } |
| } |
| else if ( sizeof opt_warn - 1 <= arglen |
| && !memcmp (opt_warn, argv [i], sizeof opt_warn - 1)) { |
| optname = opt_warn; |
| optarg = get_long_val (argv, &i, sizeof opt_warn - 1); |
| if (optarg && *optarg) { |
| if (!parse_warn_opts (optarg, defaults)) { |
| break; |
| } |
| } |
| } |
| /* fall through */ |
| } |
| default: |
| if (optarg) { |
| if (*optarg) |
| bad_value (optname, optarg); |
| else |
| missing_value (optname); |
| } |
| |
| if (argv [i]) |
| bad_option (argv [i]); |
| else |
| missing_value (optname); |
| } |
| } |
| |
| return i; |
| } |
| |
| char** |
| split_opt_string (const char* opts) |
| { |
| char in_quote = 0; |
| int in_escape = 0; |
| int in_token = 0; |
| const char *pos; |
| char *target, *last; |
| char **table_pos, **argv; |
| size_t optlen; |
| |
| assert (0 != opts); |
| |
| optlen = strlen (opts); |
| |
| if (0 == optlen) { |
| /* Alloc a an index array to hold the program name */ |
| argv = (char**)RW_MALLOC (sizeof (char*)); |
| |
| /* And tie the two together */ |
| argv [0] = (char*)0; |
| return argv; |
| } |
| |
| table_pos = argv = (char**)RW_MALLOC ((optlen + 3) * sizeof (char*) / 2); |
| /* (strlen (opts)+3)/2 is overkill for the most situations, but it is just |
| large enough to handle the worst case scenario. The worst case is a |
| string similar to 'x y' or 'x y z', requiring array lengths of 4 and 5 |
| respectively. |
| */ |
| |
| last = target = argv [0] = (char*)RW_MALLOC (optlen + 1); |
| |
| /* Transcribe the contents, handling escaping and splitting */ |
| for (pos = opts; *pos; ++pos) { |
| if (in_escape) { |
| *(target++) = *pos; |
| in_escape = 0; |
| continue; |
| } |
| if (isspace (*pos)) { |
| if (in_quote) { |
| *(target++) = *pos; |
| } |
| else { |
| if (in_token) { |
| *(target++) = '\0'; |
| *(table_pos++) = last; |
| in_token = 0; |
| } |
| last = target; |
| } |
| continue; |
| } |
| in_token = 1; |
| switch (*pos) { |
| case escape_code: |
| in_escape = 1; |
| break; |
| case '"': |
| case '\'': |
| if (*pos == in_quote) { |
| in_quote = 0; |
| break; |
| } |
| else if (0 == in_quote) { |
| in_quote = *pos; |
| break; |
| } |
| /* intentionally falling through (in a quote and quote didn't |
| match opening quote. |
| */ |
| default: |
| *(target++) = *pos; |
| } |
| } |
| |
| if (in_token) { /* close and record the final token */ |
| *(target++) = '\0'; |
| *(table_pos++) = last; |
| } |
| *table_pos = (char*)0;/*And terminate the array*/ |
| |
| return argv; |
| } |
