"Robert P. J. Day" | 63fc1a9 | 2006-07-02 19:47:05 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 2 | /* |
| 3 | * getopt.c - Enhanced implementation of BSD getopt(1) |
| 4 | * Copyright (c) 1997, 1998, 1999, 2000 Frodo Looijaard <frodol@dds.nl> |
| 5 | * |
Denys Vlasenko | 0ef64bd | 2010-08-16 20:14:46 +0200 | [diff] [blame] | 6 | * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | /* |
| 10 | * Version 1.0-b4: Tue Sep 23 1997. First public release. |
| 11 | * Version 1.0: Wed Nov 19 1997. |
| 12 | * Bumped up the version number to 1.0 |
| 13 | * Fixed minor typo (CSH instead of TCSH) |
| 14 | * Version 1.0.1: Tue Jun 3 1998 |
| 15 | * Fixed sizeof instead of strlen bug |
| 16 | * Bumped up the version number to 1.0.1 |
| 17 | * Version 1.0.2: Thu Jun 11 1998 (not present) |
| 18 | * Fixed gcc-2.8.1 warnings |
| 19 | * Fixed --version/-V option (not present) |
| 20 | * Version 1.0.5: Tue Jun 22 1999 |
| 21 | * Make -u option work (not present) |
| 22 | * Version 1.0.6: Tue Jun 27 2000 |
| 23 | * No important changes |
| 24 | * Version 1.1.0: Tue Jun 30 2000 |
Denis Vlasenko | b44c790 | 2008-03-17 09:29:43 +0000 | [diff] [blame] | 25 | * Added NLS support (partly written by Arkadiusz Mickiewicz |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 26 | * <misiek@misiek.eu.org>) |
| 27 | * Ported to Busybox - Alfred M. Szmidt <ams@trillian.itslinux.org> |
Denys Vlasenko | 488dd70 | 2011-05-29 04:24:13 +0200 | [diff] [blame] | 28 | * Removed --version/-V and --help/-h |
Eric Andersen | aff114c | 2004-04-14 17:51:38 +0000 | [diff] [blame] | 29 | * Removed parse_error(), using bb_error_msg() from Busybox instead |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 30 | * Replaced our_malloc with xmalloc and our_realloc with xrealloc |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 31 | */ |
Denys Vlasenko | dd898c9 | 2016-11-23 11:46:32 +0100 | [diff] [blame] | 32 | //config:config GETOPT |
Denys Vlasenko | 4eed2c6 | 2017-07-18 22:01:24 +0200 | [diff] [blame^] | 33 | //config: bool "getopt (5.6 kb)" |
Denys Vlasenko | dd898c9 | 2016-11-23 11:46:32 +0100 | [diff] [blame] | 34 | //config: default y |
| 35 | //config: help |
| 36 | //config: The getopt utility is used to break up (parse) options in command |
| 37 | //config: lines to make it easy to write complex shell scripts that also check |
| 38 | //config: for legal (and illegal) options. If you want to write horribly |
| 39 | //config: complex shell scripts, or use some horribly complex shell script |
| 40 | //config: written by others, this utility may be for you. Most people will |
| 41 | //config: wisely leave this disabled. |
| 42 | //config: |
| 43 | //config:config FEATURE_GETOPT_LONG |
| 44 | //config: bool "Support option -l" |
| 45 | //config: default y if LONG_OPTS |
| 46 | //config: depends on GETOPT |
| 47 | //config: help |
| 48 | //config: Enable support for long options (option -l). |
| 49 | |
| 50 | //applet:IF_GETOPT(APPLET(getopt, BB_DIR_BIN, BB_SUID_DROP)) |
| 51 | |
| 52 | //kbuild:lib-$(CONFIG_GETOPT) += getopt.o |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 53 | |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 54 | //usage:#define getopt_trivial_usage |
Denys Vlasenko | 594db1e | 2012-02-09 18:17:29 +0100 | [diff] [blame] | 55 | //usage: "[OPTIONS] [--] OPTSTRING PARAMS" |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 56 | //usage:#define getopt_full_usage "\n\n" |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 57 | //usage: IF_LONG_OPTS( |
Denys Vlasenko | ee3bc70 | 2013-01-24 11:36:00 +0100 | [diff] [blame] | 58 | //usage: IF_FEATURE_GETOPT_LONG( |
| 59 | //usage: " -a,--alternative Allow long options starting with single -\n" |
Denys Vlasenko | bbc7bee | 2017-01-21 02:49:58 +0100 | [diff] [blame] | 60 | //usage: " -l,--longoptions LOPT[,...] Long options to recognize\n" |
Denys Vlasenko | ee3bc70 | 2013-01-24 11:36:00 +0100 | [diff] [blame] | 61 | //usage: ) |
Denys Vlasenko | bbc7bee | 2017-01-21 02:49:58 +0100 | [diff] [blame] | 62 | //usage: " -n,--name PROGNAME The name under which errors are reported" |
| 63 | //usage: "\n -o,--options OPTSTRING Short options to recognize" |
Denys Vlasenko | ee3bc70 | 2013-01-24 11:36:00 +0100 | [diff] [blame] | 64 | //usage: "\n -q,--quiet No error messages on unrecognized options" |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 65 | //usage: "\n -Q,--quiet-output No normal output" |
Denys Vlasenko | bbc7bee | 2017-01-21 02:49:58 +0100 | [diff] [blame] | 66 | //usage: "\n -s,--shell SHELL Set shell quoting conventions" |
Denys Vlasenko | ee3bc70 | 2013-01-24 11:36:00 +0100 | [diff] [blame] | 67 | //usage: "\n -T,--test Version test (exits with 4)" |
| 68 | //usage: "\n -u,--unquoted Don't quote output" |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 69 | //usage: ) |
| 70 | //usage: IF_NOT_LONG_OPTS( |
Denys Vlasenko | ee3bc70 | 2013-01-24 11:36:00 +0100 | [diff] [blame] | 71 | //usage: IF_FEATURE_GETOPT_LONG( |
| 72 | //usage: " -a Allow long options starting with single -\n" |
| 73 | //usage: " -l LOPT[,...] Long options to recognize\n" |
| 74 | //usage: ) |
| 75 | //usage: " -n PROGNAME The name under which errors are reported" |
| 76 | //usage: "\n -o OPTSTRING Short options to recognize" |
| 77 | //usage: "\n -q No error messages on unrecognized options" |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 78 | //usage: "\n -Q No normal output" |
Denys Vlasenko | 594db1e | 2012-02-09 18:17:29 +0100 | [diff] [blame] | 79 | //usage: "\n -s SHELL Set shell quoting conventions" |
Denys Vlasenko | ee3bc70 | 2013-01-24 11:36:00 +0100 | [diff] [blame] | 80 | //usage: "\n -T Version test (exits with 4)" |
| 81 | //usage: "\n -u Don't quote output" |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 82 | //usage: ) |
Denys Vlasenko | ee3bc70 | 2013-01-24 11:36:00 +0100 | [diff] [blame] | 83 | //usage: IF_FEATURE_GETOPT_LONG( /* example uses -l, needs FEATURE_GETOPT_LONG */ |
Denys Vlasenko | 594db1e | 2012-02-09 18:17:29 +0100 | [diff] [blame] | 84 | //usage: "\n" |
| 85 | //usage: "\nExample:" |
| 86 | //usage: "\n" |
Denys Vlasenko | 817c230 | 2012-02-09 18:39:16 +0100 | [diff] [blame] | 87 | //usage: "\nO=`getopt -l bb: -- ab:c:: \"$@\"` || exit 1" |
Denys Vlasenko | 594db1e | 2012-02-09 18:17:29 +0100 | [diff] [blame] | 88 | //usage: "\neval set -- \"$O\"" |
| 89 | //usage: "\nwhile true; do" |
| 90 | //usage: "\n case \"$1\" in" |
| 91 | //usage: "\n -a) echo A; shift;;" |
| 92 | //usage: "\n -b|--bb) echo \"B:'$2'\"; shift 2;;" |
| 93 | //usage: "\n -c) case \"$2\" in" |
| 94 | //usage: "\n \"\") echo C; shift 2;;" |
| 95 | //usage: "\n *) echo \"C:'$2'\"; shift 2;;" |
| 96 | //usage: "\n esac;;" |
| 97 | //usage: "\n --) shift; break;;" |
| 98 | //usage: "\n *) echo Error; exit 1;;" |
| 99 | //usage: "\n esac" |
| 100 | //usage: "\ndone" |
Denys Vlasenko | ee3bc70 | 2013-01-24 11:36:00 +0100 | [diff] [blame] | 101 | //usage: ) |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 102 | //usage: |
| 103 | //usage:#define getopt_example_usage |
| 104 | //usage: "$ cat getopt.test\n" |
| 105 | //usage: "#!/bin/sh\n" |
| 106 | //usage: "GETOPT=`getopt -o ab:c:: --long a-long,b-long:,c-long:: \\\n" |
| 107 | //usage: " -n 'example.busybox' -- \"$@\"`\n" |
| 108 | //usage: "if [ $? != 0 ]; then exit 1; fi\n" |
| 109 | //usage: "eval set -- \"$GETOPT\"\n" |
| 110 | //usage: "while true; do\n" |
| 111 | //usage: " case $1 in\n" |
| 112 | //usage: " -a|--a-long) echo \"Option a\"; shift;;\n" |
| 113 | //usage: " -b|--b-long) echo \"Option b, argument '$2'\"; shift 2;;\n" |
| 114 | //usage: " -c|--c-long)\n" |
| 115 | //usage: " case \"$2\" in\n" |
| 116 | //usage: " \"\") echo \"Option c, no argument\"; shift 2;;\n" |
| 117 | //usage: " *) echo \"Option c, argument '$2'\"; shift 2;;\n" |
| 118 | //usage: " esac;;\n" |
| 119 | //usage: " --) shift; break;;\n" |
| 120 | //usage: " *) echo \"Internal error!\"; exit 1;;\n" |
| 121 | //usage: " esac\n" |
| 122 | //usage: "done\n" |
| 123 | |
Denys Vlasenko | 488dd70 | 2011-05-29 04:24:13 +0200 | [diff] [blame] | 124 | #if ENABLE_FEATURE_GETOPT_LONG |
| 125 | # include <getopt.h> |
| 126 | #endif |
Denis Vlasenko | b6adbf1 | 2007-05-26 19:00:18 +0000 | [diff] [blame] | 127 | #include "libbb.h" |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 128 | |
| 129 | /* NON_OPT is the code that is returned when a non-option is found in '+' |
| 130 | mode */ |
Rob Landley | bc68cd1 | 2006-03-10 19:22:06 +0000 | [diff] [blame] | 131 | enum { |
| 132 | NON_OPT = 1, |
Denys Vlasenko | f3b92d3 | 2009-06-19 12:10:38 +0200 | [diff] [blame] | 133 | #if ENABLE_FEATURE_GETOPT_LONG |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 134 | /* LONG_OPT is the code that is returned when a long option is found. */ |
Rob Landley | bc68cd1 | 2006-03-10 19:22:06 +0000 | [diff] [blame] | 135 | LONG_OPT = 2 |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 136 | #endif |
Rob Landley | bc68cd1 | 2006-03-10 19:22:06 +0000 | [diff] [blame] | 137 | }; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 138 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 139 | /* For finding activated option flags. Must match getopt32 call! */ |
| 140 | enum { |
| 141 | OPT_o = 0x1, // -o |
| 142 | OPT_n = 0x2, // -n |
| 143 | OPT_q = 0x4, // -q |
| 144 | OPT_Q = 0x8, // -Q |
| 145 | OPT_s = 0x10, // -s |
| 146 | OPT_T = 0x20, // -T |
| 147 | OPT_u = 0x40, // -u |
Denys Vlasenko | f3b92d3 | 2009-06-19 12:10:38 +0200 | [diff] [blame] | 148 | #if ENABLE_FEATURE_GETOPT_LONG |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 149 | OPT_a = 0x80, // -a |
| 150 | OPT_l = 0x100, // -l |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 151 | #endif |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 152 | SHELL_IS_TCSH = 0x8000, /* hijack this bit for other purposes */ |
| 153 | }; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 154 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 155 | /* 0 is getopt_long, 1 is getopt_long_only */ |
| 156 | #define alternative (option_mask32 & OPT_a) |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 157 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 158 | #define quiet_errors (option_mask32 & OPT_q) |
| 159 | #define quiet_output (option_mask32 & OPT_Q) |
| 160 | #define quote (!(option_mask32 & OPT_u)) |
| 161 | #define shell_TCSH (option_mask32 & SHELL_IS_TCSH) |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 162 | |
| 163 | /* |
| 164 | * This function 'normalizes' a single argument: it puts single quotes around |
| 165 | * it and escapes other special characters. If quote is false, it just |
| 166 | * returns its argument. |
| 167 | * Bash only needs special treatment for single quotes; tcsh also recognizes |
| 168 | * exclamation marks within single quotes, and nukes whitespace. |
| 169 | * This function returns a pointer to a buffer that is overwritten by |
| 170 | * each call. |
| 171 | */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 172 | static const char *normalize(const char *arg) |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 173 | { |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 174 | char *bufptr; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 175 | #if ENABLE_FEATURE_CLEAN_UP |
| 176 | static char *BUFFER = NULL; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 177 | free(BUFFER); |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 178 | #else |
| 179 | char *BUFFER; |
| 180 | #endif |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 181 | |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 182 | if (!quote) { /* Just copy arg */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 183 | BUFFER = xstrdup(arg); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 184 | return BUFFER; |
| 185 | } |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 186 | |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 187 | /* Each character in arg may take up to four characters in the result: |
| 188 | For a quote we need a closing quote, a backslash, a quote and an |
| 189 | opening quote! We need also the global opening and closing quote, |
| 190 | and one extra character for '\0'. */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 191 | BUFFER = xmalloc(strlen(arg)*4 + 3); |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 192 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 193 | bufptr = BUFFER; |
| 194 | *bufptr ++= '\''; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 195 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 196 | while (*arg) { |
| 197 | if (*arg == '\'') { |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 198 | /* Quote: replace it with: '\'' */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 199 | *bufptr ++= '\''; |
| 200 | *bufptr ++= '\\'; |
| 201 | *bufptr ++= '\''; |
| 202 | *bufptr ++= '\''; |
| 203 | } else if (shell_TCSH && *arg == '!') { |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 204 | /* Exclamation mark: replace it with: \! */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 205 | *bufptr ++= '\''; |
| 206 | *bufptr ++= '\\'; |
| 207 | *bufptr ++= '!'; |
| 208 | *bufptr ++= '\''; |
| 209 | } else if (shell_TCSH && *arg == '\n') { |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 210 | /* Newline: replace it with: \n */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 211 | *bufptr ++= '\\'; |
| 212 | *bufptr ++= 'n'; |
| 213 | } else if (shell_TCSH && isspace(*arg)) { |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 214 | /* Non-newline whitespace: replace it with \<ws> */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 215 | *bufptr ++= '\''; |
| 216 | *bufptr ++= '\\'; |
| 217 | *bufptr ++= *arg; |
| 218 | *bufptr ++= '\''; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 219 | } else |
| 220 | /* Just copy */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 221 | *bufptr ++= *arg; |
| 222 | arg++; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 223 | } |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 224 | *bufptr ++= '\''; |
| 225 | *bufptr ++= '\0'; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 226 | return BUFFER; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 227 | } |
| 228 | |
| 229 | /* |
| 230 | * Generate the output. argv[0] is the program name (used for reporting errors). |
| 231 | * argv[1..] contains the options to be parsed. argc must be the number of |
| 232 | * elements in argv (ie. 1 if there are no options, only the program name), |
| 233 | * optstr must contain the short options, and longopts the long options. |
| 234 | * Other settings are found in global variables. |
| 235 | */ |
Denys Vlasenko | f3b92d3 | 2009-06-19 12:10:38 +0200 | [diff] [blame] | 236 | #if !ENABLE_FEATURE_GETOPT_LONG |
Denis Vlasenko | d1660cb | 2008-10-20 07:52:33 +0000 | [diff] [blame] | 237 | #define generate_output(argv,argc,optstr,longopts) \ |
| 238 | generate_output(argv,argc,optstr) |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 239 | #endif |
| 240 | static int generate_output(char **argv, int argc, const char *optstr, const struct option *longopts) |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 241 | { |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 242 | int exit_code = 0; /* We assume everything will be OK */ |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 243 | |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 244 | if (quiet_errors) /* No error reporting from getopt(3) */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 245 | opterr = 0; |
Denis Vlasenko | 9772816 | 2008-01-28 22:57:10 +0000 | [diff] [blame] | 246 | |
Denis Vlasenko | 7effd7a | 2008-10-21 12:36:43 +0000 | [diff] [blame] | 247 | /* We used it already in main() in getopt32(), |
| 248 | * we *must* reset getopt(3): */ |
Kaarle Ritvanen | 835ad3a | 2017-04-12 00:58:46 +0300 | [diff] [blame] | 249 | GETOPT_RESET(); |
Denis Vlasenko | 7effd7a | 2008-10-21 12:36:43 +0000 | [diff] [blame] | 250 | |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 251 | while (1) { |
Denys Vlasenko | f3b92d3 | 2009-06-19 12:10:38 +0200 | [diff] [blame] | 252 | #if ENABLE_FEATURE_GETOPT_LONG |
Denys Vlasenko | ee3bc70 | 2013-01-24 11:36:00 +0100 | [diff] [blame] | 253 | int longindex; |
| 254 | int opt = alternative |
| 255 | ? getopt_long_only(argc, argv, optstr, longopts, &longindex) |
| 256 | : getopt_long(argc, argv, optstr, longopts, &longindex) |
| 257 | ; |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 258 | #else |
Denys Vlasenko | ee3bc70 | 2013-01-24 11:36:00 +0100 | [diff] [blame] | 259 | int opt = getopt(argc, argv, optstr); |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 260 | #endif |
Denis Vlasenko | 6b06cb8 | 2008-05-15 21:30:45 +0000 | [diff] [blame] | 261 | if (opt == -1) |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 262 | break; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 263 | if (opt == '?' || opt == ':' ) |
| 264 | exit_code = 1; |
| 265 | else if (!quiet_output) { |
Denys Vlasenko | f3b92d3 | 2009-06-19 12:10:38 +0200 | [diff] [blame] | 266 | #if ENABLE_FEATURE_GETOPT_LONG |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 267 | if (opt == LONG_OPT) { |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 268 | printf(" --%s", longopts[longindex].name); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 269 | if (longopts[longindex].has_arg) |
| 270 | printf(" %s", |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 271 | normalize(optarg ? optarg : "")); |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 272 | } else |
| 273 | #endif |
| 274 | if (opt == NON_OPT) |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 275 | printf(" %s", normalize(optarg)); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 276 | else { |
Denys Vlasenko | ee3bc70 | 2013-01-24 11:36:00 +0100 | [diff] [blame] | 277 | const char *charptr; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 278 | printf(" -%c", opt); |
Denis Vlasenko | 6b06cb8 | 2008-05-15 21:30:45 +0000 | [diff] [blame] | 279 | charptr = strchr(optstr, opt); |
Denys Vlasenko | ee3bc70 | 2013-01-24 11:36:00 +0100 | [diff] [blame] | 280 | if (charptr && *++charptr == ':') |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 281 | printf(" %s", |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 282 | normalize(optarg ? optarg : "")); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 283 | } |
| 284 | } |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 285 | } |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 286 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 287 | if (!quiet_output) { |
Denys Vlasenko | ee3bc70 | 2013-01-24 11:36:00 +0100 | [diff] [blame] | 288 | unsigned idx; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 289 | printf(" --"); |
Denys Vlasenko | ee3bc70 | 2013-01-24 11:36:00 +0100 | [diff] [blame] | 290 | idx = optind; |
| 291 | while (argv[idx]) |
| 292 | printf(" %s", normalize(argv[idx++])); |
Denis Vlasenko | 4daad90 | 2007-09-27 10:20:47 +0000 | [diff] [blame] | 293 | bb_putchar('\n'); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 294 | } |
| 295 | return exit_code; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 296 | } |
| 297 | |
Denys Vlasenko | f3b92d3 | 2009-06-19 12:10:38 +0200 | [diff] [blame] | 298 | #if ENABLE_FEATURE_GETOPT_LONG |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 299 | /* |
| 300 | * Register several long options. options is a string of long options, |
| 301 | * separated by commas or whitespace. |
| 302 | * This nukes options! |
| 303 | */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 304 | static struct option *add_long_options(struct option *long_options, char *options) |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 305 | { |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 306 | int long_nr = 0; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 307 | int arg_opt, tlen; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 308 | char *tokptr = strtok(options, ", \t\n"); |
| 309 | |
| 310 | if (long_options) |
| 311 | while (long_options[long_nr].name) |
| 312 | long_nr++; |
| 313 | |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 314 | while (tokptr) { |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 315 | arg_opt = no_argument; |
| 316 | tlen = strlen(tokptr); |
| 317 | if (tlen) { |
| 318 | tlen--; |
| 319 | if (tokptr[tlen] == ':') { |
| 320 | arg_opt = required_argument; |
| 321 | if (tlen && tokptr[tlen-1] == ':') { |
| 322 | tlen--; |
| 323 | arg_opt = optional_argument; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 324 | } |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 325 | tokptr[tlen] = '\0'; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 326 | if (tlen == 0) |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 327 | bb_error_msg_and_die("empty long option specified"); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 328 | } |
Denis Vlasenko | deeed59 | 2008-07-08 05:14:36 +0000 | [diff] [blame] | 329 | long_options = xrealloc_vector(long_options, 4, long_nr); |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 330 | long_options[long_nr].has_arg = arg_opt; |
Denis Vlasenko | 2784228 | 2008-08-04 13:20:36 +0000 | [diff] [blame] | 331 | /*long_options[long_nr].flag = NULL; - xrealloc_vector did it */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 332 | long_options[long_nr].val = LONG_OPT; |
| 333 | long_options[long_nr].name = xstrdup(tokptr); |
| 334 | long_nr++; |
Denis Vlasenko | 2784228 | 2008-08-04 13:20:36 +0000 | [diff] [blame] | 335 | /*memset(&long_options[long_nr], 0, sizeof(long_options[0])); - xrealloc_vector did it */ |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 336 | } |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 337 | tokptr = strtok(NULL, ", \t\n"); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 338 | } |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 339 | return long_options; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 340 | } |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 341 | #endif |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 342 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 343 | static void set_shell(const char *new_shell) |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 344 | { |
Denys Vlasenko | 1d3a04a | 2016-11-28 01:22:57 +0100 | [diff] [blame] | 345 | if (strcmp(new_shell, "bash") == 0 || strcmp(new_shell, "sh") == 0) |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 346 | return; |
Denys Vlasenko | 1d3a04a | 2016-11-28 01:22:57 +0100 | [diff] [blame] | 347 | if (strcmp(new_shell, "tcsh") == 0 || strcmp(new_shell, "csh") == 0) |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 348 | option_mask32 |= SHELL_IS_TCSH; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 349 | else |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 350 | bb_error_msg("unknown shell '%s', assuming bash", new_shell); |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 351 | } |
| 352 | |
| 353 | |
| 354 | /* Exit codes: |
Eric Andersen | aff114c | 2004-04-14 17:51:38 +0000 | [diff] [blame] | 355 | * 0) No errors, successful operation. |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 356 | * 1) getopt(3) returned an error. |
| 357 | * 2) A problem with parameter parsing for getopt(1). |
| 358 | * 3) Internal error, out of memory |
| 359 | * 4) Returned for -T |
| 360 | */ |
| 361 | |
Denys Vlasenko | f3b92d3 | 2009-06-19 12:10:38 +0200 | [diff] [blame] | 362 | #if ENABLE_FEATURE_GETOPT_LONG |
Denis Vlasenko | 6ca409e | 2007-08-12 20:58:27 +0000 | [diff] [blame] | 363 | static const char getopt_longopts[] ALIGN1 = |
Denis Vlasenko | bdc88fd | 2007-07-23 17:14:14 +0000 | [diff] [blame] | 364 | "options\0" Required_argument "o" |
| 365 | "longoptions\0" Required_argument "l" |
| 366 | "quiet\0" No_argument "q" |
| 367 | "quiet-output\0" No_argument "Q" |
| 368 | "shell\0" Required_argument "s" |
| 369 | "test\0" No_argument "T" |
| 370 | "unquoted\0" No_argument "u" |
| 371 | "alternative\0" No_argument "a" |
| 372 | "name\0" Required_argument "n" |
Denis Vlasenko | 990d0f6 | 2007-07-24 15:54:42 +0000 | [diff] [blame] | 373 | ; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 374 | #endif |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 375 | |
Denis Vlasenko | 9b49a5e | 2007-10-11 10:05:36 +0000 | [diff] [blame] | 376 | int getopt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
| 377 | int getopt_main(int argc, char **argv) |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 378 | { |
Denys Vlasenko | 594db1e | 2012-02-09 18:17:29 +0100 | [diff] [blame] | 379 | int n; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 380 | char *optstr = NULL; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 381 | char *name = NULL; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 382 | unsigned opt; |
| 383 | const char *compatible; |
Denis Vlasenko | 4b924f3 | 2007-05-30 00:29:55 +0000 | [diff] [blame] | 384 | char *s_arg; |
Denys Vlasenko | f3b92d3 | 2009-06-19 12:10:38 +0200 | [diff] [blame] | 385 | #if ENABLE_FEATURE_GETOPT_LONG |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 386 | struct option *long_options = NULL; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 387 | llist_t *l_arg = NULL; |
| 388 | #endif |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 389 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 390 | compatible = getenv("GETOPT_COMPATIBLE"); /* used as yes/no flag */ |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 391 | |
Denys Vlasenko | 594db1e | 2012-02-09 18:17:29 +0100 | [diff] [blame] | 392 | if (!argv[1]) { |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 393 | if (compatible) { |
| 394 | /* For some reason, the original getopt gave no error |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 395 | * when there were no arguments. */ |
Denys Vlasenko | d60752f | 2015-10-07 22:42:45 +0200 | [diff] [blame] | 396 | puts(" --"); |
Denis Vlasenko | f47ff10 | 2006-09-22 08:42:06 +0000 | [diff] [blame] | 397 | return 0; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 398 | } |
| 399 | bb_error_msg_and_die("missing optstring argument"); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 400 | } |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 401 | |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 402 | if (argv[1][0] != '-' || compatible) { |
Denys Vlasenko | 594db1e | 2012-02-09 18:17:29 +0100 | [diff] [blame] | 403 | char *s = argv[1]; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 404 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 405 | option_mask32 |= OPT_u; /* quoting off */ |
Denys Vlasenko | 594db1e | 2012-02-09 18:17:29 +0100 | [diff] [blame] | 406 | s = xstrdup(s + strspn(s, "-+")); |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 407 | argv[1] = argv[0]; |
| 408 | return generate_output(argv+1, argc-1, s, long_options); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 409 | } |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 410 | |
Denys Vlasenko | f3b92d3 | 2009-06-19 12:10:38 +0200 | [diff] [blame] | 411 | #if !ENABLE_FEATURE_GETOPT_LONG |
Denis Vlasenko | fe7cd64 | 2007-08-18 15:32:12 +0000 | [diff] [blame] | 412 | opt = getopt32(argv, "+o:n:qQs:Tu", &optstr, &name, &s_arg); |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 413 | #else |
Denis Vlasenko | bdc88fd | 2007-07-23 17:14:14 +0000 | [diff] [blame] | 414 | applet_long_options = getopt_longopts; |
Denys Vlasenko | 237bedd | 2016-07-06 21:58:02 +0200 | [diff] [blame] | 415 | opt = getopt32(argv, "+o:n:qQs:Tual:*", |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 416 | &optstr, &name, &s_arg, &l_arg); |
| 417 | /* Effectuate the read options for the applet itself */ |
| 418 | while (l_arg) { |
Denis Vlasenko | d50dda8 | 2008-06-15 05:40:56 +0000 | [diff] [blame] | 419 | long_options = add_long_options(long_options, llist_pop(&l_arg)); |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 420 | } |
| 421 | #endif |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 422 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 423 | if (opt & OPT_s) { |
| 424 | set_shell(s_arg); |
| 425 | } |
| 426 | |
| 427 | if (opt & OPT_T) { |
| 428 | return 4; |
| 429 | } |
| 430 | |
| 431 | /* All options controlling the applet have now been parsed */ |
Denys Vlasenko | 594db1e | 2012-02-09 18:17:29 +0100 | [diff] [blame] | 432 | n = optind - 1; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 433 | if (!optstr) { |
Denys Vlasenko | 594db1e | 2012-02-09 18:17:29 +0100 | [diff] [blame] | 434 | optstr = argv[++n]; |
| 435 | if (!optstr) |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 436 | bb_error_msg_and_die("missing optstring argument"); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 437 | } |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 438 | |
Denys Vlasenko | 594db1e | 2012-02-09 18:17:29 +0100 | [diff] [blame] | 439 | argv[n] = name ? name : argv[0]; |
| 440 | return generate_output(argv + n, argc - n, optstr, long_options); |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 441 | } |