"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 | * |
Bernhard Reutner-Fischer | b1629b1 | 2006-05-19 19:29:19 +0000 | [diff] [blame] | 6 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
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> |
| 28 | * Removed --version/-V and --help/-h in |
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 |
| 31 | * |
| 32 | */ |
| 33 | |
Rob Landley | d921b2e | 2006-08-03 15:41:12 +0000 | [diff] [blame] | 34 | #include <getopt.h> |
Denis Vlasenko | b6adbf1 | 2007-05-26 19:00:18 +0000 | [diff] [blame] | 35 | #include "libbb.h" |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 36 | |
| 37 | /* NON_OPT is the code that is returned when a non-option is found in '+' |
| 38 | mode */ |
Rob Landley | bc68cd1 | 2006-03-10 19:22:06 +0000 | [diff] [blame] | 39 | enum { |
| 40 | NON_OPT = 1, |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 41 | #if ENABLE_GETOPT_LONG |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 42 | /* 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] | 43 | LONG_OPT = 2 |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 44 | #endif |
Rob Landley | bc68cd1 | 2006-03-10 19:22:06 +0000 | [diff] [blame] | 45 | }; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 46 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 47 | /* For finding activated option flags. Must match getopt32 call! */ |
| 48 | enum { |
| 49 | OPT_o = 0x1, // -o |
| 50 | OPT_n = 0x2, // -n |
| 51 | OPT_q = 0x4, // -q |
| 52 | OPT_Q = 0x8, // -Q |
| 53 | OPT_s = 0x10, // -s |
| 54 | OPT_T = 0x20, // -T |
| 55 | OPT_u = 0x40, // -u |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 56 | #if ENABLE_GETOPT_LONG |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 57 | OPT_a = 0x80, // -a |
| 58 | OPT_l = 0x100, // -l |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 59 | #endif |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 60 | SHELL_IS_TCSH = 0x8000, /* hijack this bit for other purposes */ |
| 61 | }; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 62 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 63 | /* 0 is getopt_long, 1 is getopt_long_only */ |
| 64 | #define alternative (option_mask32 & OPT_a) |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 65 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 66 | #define quiet_errors (option_mask32 & OPT_q) |
| 67 | #define quiet_output (option_mask32 & OPT_Q) |
| 68 | #define quote (!(option_mask32 & OPT_u)) |
| 69 | #define shell_TCSH (option_mask32 & SHELL_IS_TCSH) |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 70 | |
| 71 | /* |
| 72 | * This function 'normalizes' a single argument: it puts single quotes around |
| 73 | * it and escapes other special characters. If quote is false, it just |
| 74 | * returns its argument. |
| 75 | * Bash only needs special treatment for single quotes; tcsh also recognizes |
| 76 | * exclamation marks within single quotes, and nukes whitespace. |
| 77 | * This function returns a pointer to a buffer that is overwritten by |
| 78 | * each call. |
| 79 | */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 80 | static const char *normalize(const char *arg) |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 81 | { |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 82 | char *bufptr; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 83 | #if ENABLE_FEATURE_CLEAN_UP |
| 84 | static char *BUFFER = NULL; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 85 | free(BUFFER); |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 86 | #else |
| 87 | char *BUFFER; |
| 88 | #endif |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 89 | |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 90 | if (!quote) { /* Just copy arg */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 91 | BUFFER = xstrdup(arg); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 92 | return BUFFER; |
| 93 | } |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 94 | |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 95 | /* Each character in arg may take up to four characters in the result: |
| 96 | For a quote we need a closing quote, a backslash, a quote and an |
| 97 | opening quote! We need also the global opening and closing quote, |
| 98 | and one extra character for '\0'. */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 99 | BUFFER = xmalloc(strlen(arg)*4 + 3); |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 100 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 101 | bufptr = BUFFER; |
| 102 | *bufptr ++= '\''; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 103 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 104 | while (*arg) { |
| 105 | if (*arg == '\'') { |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 106 | /* Quote: replace it with: '\'' */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 107 | *bufptr ++= '\''; |
| 108 | *bufptr ++= '\\'; |
| 109 | *bufptr ++= '\''; |
| 110 | *bufptr ++= '\''; |
| 111 | } else if (shell_TCSH && *arg == '!') { |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 112 | /* Exclamation mark: replace it with: \! */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 113 | *bufptr ++= '\''; |
| 114 | *bufptr ++= '\\'; |
| 115 | *bufptr ++= '!'; |
| 116 | *bufptr ++= '\''; |
| 117 | } else if (shell_TCSH && *arg == '\n') { |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 118 | /* Newline: replace it with: \n */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 119 | *bufptr ++= '\\'; |
| 120 | *bufptr ++= 'n'; |
| 121 | } else if (shell_TCSH && isspace(*arg)) { |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 122 | /* Non-newline whitespace: replace it with \<ws> */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 123 | *bufptr ++= '\''; |
| 124 | *bufptr ++= '\\'; |
| 125 | *bufptr ++= *arg; |
| 126 | *bufptr ++= '\''; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 127 | } else |
| 128 | /* Just copy */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 129 | *bufptr ++= *arg; |
| 130 | arg++; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 131 | } |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 132 | *bufptr ++= '\''; |
| 133 | *bufptr ++= '\0'; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 134 | return BUFFER; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 135 | } |
| 136 | |
| 137 | /* |
| 138 | * Generate the output. argv[0] is the program name (used for reporting errors). |
| 139 | * argv[1..] contains the options to be parsed. argc must be the number of |
| 140 | * elements in argv (ie. 1 if there are no options, only the program name), |
| 141 | * optstr must contain the short options, and longopts the long options. |
| 142 | * Other settings are found in global variables. |
| 143 | */ |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 144 | #if !ENABLE_GETOPT_LONG |
| 145 | #define generate_output(argv,argc,optstr,longopts) generate_output(argv,argc,optstr) |
| 146 | #endif |
| 147 | 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] | 148 | { |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 149 | int exit_code = 0; /* We assume everything will be OK */ |
Denis Vlasenko | 6b06cb8 | 2008-05-15 21:30:45 +0000 | [diff] [blame] | 150 | int opt; |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 151 | #if ENABLE_GETOPT_LONG |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 152 | int longindex; |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 153 | #endif |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 154 | const char *charptr; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 155 | |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 156 | if (quiet_errors) /* No error reporting from getopt(3) */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 157 | opterr = 0; |
Denis Vlasenko | 9772816 | 2008-01-28 22:57:10 +0000 | [diff] [blame] | 158 | |
| 159 | /* Reset getopt(3) (see libbb/getopt32.c for long rant) */ |
| 160 | #ifdef __GLIBC__ |
Denis Vlasenko | 2570b2e | 2008-03-28 01:00:09 +0000 | [diff] [blame] | 161 | optind = 0; |
Denis Vlasenko | 9772816 | 2008-01-28 22:57:10 +0000 | [diff] [blame] | 162 | #else /* BSD style */ |
Denis Vlasenko | 2570b2e | 2008-03-28 01:00:09 +0000 | [diff] [blame] | 163 | optind = 1; |
| 164 | /* optreset = 1; */ |
Denis Vlasenko | 9772816 | 2008-01-28 22:57:10 +0000 | [diff] [blame] | 165 | #endif |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 166 | |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 167 | while (1) { |
| 168 | opt = |
| 169 | #if ENABLE_GETOPT_LONG |
| 170 | alternative ? |
| 171 | getopt_long_only(argc, argv, optstr, longopts, &longindex) : |
| 172 | getopt_long(argc, argv, optstr, longopts, &longindex); |
| 173 | #else |
| 174 | getopt(argc, argv, optstr); |
| 175 | #endif |
Denis Vlasenko | 6b06cb8 | 2008-05-15 21:30:45 +0000 | [diff] [blame] | 176 | if (opt == -1) |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 177 | break; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 178 | if (opt == '?' || opt == ':' ) |
| 179 | exit_code = 1; |
| 180 | else if (!quiet_output) { |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 181 | #if ENABLE_GETOPT_LONG |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 182 | if (opt == LONG_OPT) { |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 183 | printf(" --%s", longopts[longindex].name); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 184 | if (longopts[longindex].has_arg) |
| 185 | printf(" %s", |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 186 | normalize(optarg ? optarg : "")); |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 187 | } else |
| 188 | #endif |
| 189 | if (opt == NON_OPT) |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 190 | printf(" %s", normalize(optarg)); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 191 | else { |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 192 | printf(" -%c", opt); |
Denis Vlasenko | 6b06cb8 | 2008-05-15 21:30:45 +0000 | [diff] [blame] | 193 | charptr = strchr(optstr, opt); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 194 | if (charptr != NULL && *++charptr == ':') |
| 195 | printf(" %s", |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 196 | normalize(optarg ? optarg : "")); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 197 | } |
| 198 | } |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 199 | } |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 200 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 201 | if (!quiet_output) { |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 202 | printf(" --"); |
| 203 | while (optind < argc) |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 204 | printf(" %s", normalize(argv[optind++])); |
Denis Vlasenko | 4daad90 | 2007-09-27 10:20:47 +0000 | [diff] [blame] | 205 | bb_putchar('\n'); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 206 | } |
| 207 | return exit_code; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 208 | } |
| 209 | |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 210 | #if ENABLE_GETOPT_LONG |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 211 | /* |
| 212 | * Register several long options. options is a string of long options, |
| 213 | * separated by commas or whitespace. |
| 214 | * This nukes options! |
| 215 | */ |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 216 | static struct option *add_long_options(struct option *long_options, char *options) |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 217 | { |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 218 | int long_nr = 0; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 219 | int arg_opt, tlen; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 220 | char *tokptr = strtok(options, ", \t\n"); |
| 221 | |
| 222 | if (long_options) |
| 223 | while (long_options[long_nr].name) |
| 224 | long_nr++; |
| 225 | |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 226 | while (tokptr) { |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 227 | arg_opt = no_argument; |
| 228 | tlen = strlen(tokptr); |
| 229 | if (tlen) { |
| 230 | tlen--; |
| 231 | if (tokptr[tlen] == ':') { |
| 232 | arg_opt = required_argument; |
| 233 | if (tlen && tokptr[tlen-1] == ':') { |
| 234 | tlen--; |
| 235 | arg_opt = optional_argument; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 236 | } |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 237 | tokptr[tlen] = '\0'; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 238 | if (tlen == 0) |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 239 | bb_error_msg_and_die("empty long option specified"); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 240 | } |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 241 | long_options = xrealloc(long_options, |
| 242 | sizeof(long_options[0]) * (long_nr+2)); |
| 243 | long_options[long_nr].has_arg = arg_opt; |
| 244 | long_options[long_nr].flag = NULL; |
| 245 | long_options[long_nr].val = LONG_OPT; |
| 246 | long_options[long_nr].name = xstrdup(tokptr); |
| 247 | long_nr++; |
| 248 | memset(&long_options[long_nr], 0, sizeof(long_options[0])); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 249 | } |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 250 | tokptr = strtok(NULL, ", \t\n"); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 251 | } |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 252 | return long_options; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 253 | } |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 254 | #endif |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 255 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 256 | static void set_shell(const char *new_shell) |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 257 | { |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 258 | if (!strcmp(new_shell,"bash") || !strcmp(new_shell,"sh")) |
| 259 | return; |
| 260 | if (!strcmp(new_shell,"tcsh") || !strcmp(new_shell,"csh")) |
| 261 | option_mask32 |= SHELL_IS_TCSH; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 262 | else |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 263 | bb_error_msg("unknown shell '%s', assuming bash", new_shell); |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 264 | } |
| 265 | |
| 266 | |
| 267 | /* Exit codes: |
Eric Andersen | aff114c | 2004-04-14 17:51:38 +0000 | [diff] [blame] | 268 | * 0) No errors, successful operation. |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 269 | * 1) getopt(3) returned an error. |
| 270 | * 2) A problem with parameter parsing for getopt(1). |
| 271 | * 3) Internal error, out of memory |
| 272 | * 4) Returned for -T |
| 273 | */ |
| 274 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 275 | #if ENABLE_GETOPT_LONG |
Denis Vlasenko | 6ca409e | 2007-08-12 20:58:27 +0000 | [diff] [blame] | 276 | static const char getopt_longopts[] ALIGN1 = |
Denis Vlasenko | bdc88fd | 2007-07-23 17:14:14 +0000 | [diff] [blame] | 277 | "options\0" Required_argument "o" |
| 278 | "longoptions\0" Required_argument "l" |
| 279 | "quiet\0" No_argument "q" |
| 280 | "quiet-output\0" No_argument "Q" |
| 281 | "shell\0" Required_argument "s" |
| 282 | "test\0" No_argument "T" |
| 283 | "unquoted\0" No_argument "u" |
| 284 | "alternative\0" No_argument "a" |
| 285 | "name\0" Required_argument "n" |
Denis Vlasenko | 990d0f6 | 2007-07-24 15:54:42 +0000 | [diff] [blame] | 286 | ; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 287 | #endif |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 288 | |
Denis Vlasenko | 9b49a5e | 2007-10-11 10:05:36 +0000 | [diff] [blame] | 289 | int getopt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
| 290 | int getopt_main(int argc, char **argv) |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 291 | { |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 292 | char *optstr = NULL; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 293 | char *name = NULL; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 294 | unsigned opt; |
| 295 | const char *compatible; |
Denis Vlasenko | 4b924f3 | 2007-05-30 00:29:55 +0000 | [diff] [blame] | 296 | char *s_arg; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 297 | #if ENABLE_GETOPT_LONG |
Denis Vlasenko | 80d14be | 2007-04-10 23:03:30 +0000 | [diff] [blame] | 298 | struct option *long_options = NULL; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 299 | llist_t *l_arg = NULL; |
| 300 | #endif |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 301 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 302 | compatible = getenv("GETOPT_COMPATIBLE"); /* used as yes/no flag */ |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 303 | |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 304 | if (argc == 1) { |
| 305 | if (compatible) { |
| 306 | /* For some reason, the original getopt gave no error |
| 307 | when there were no arguments. */ |
| 308 | printf(" --\n"); |
Denis Vlasenko | f47ff10 | 2006-09-22 08:42:06 +0000 | [diff] [blame] | 309 | return 0; |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 310 | } |
| 311 | bb_error_msg_and_die("missing optstring argument"); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 312 | } |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 313 | |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 314 | if (argv[1][0] != '-' || compatible) { |
Rob Landley | dbaf97e | 2005-09-05 06:16:53 +0000 | [diff] [blame] | 315 | char *s; |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 316 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 317 | option_mask32 |= OPT_u; /* quoting off */ |
| 318 | s = xstrdup(argv[1] + strspn(argv[1], "-+")); |
| 319 | argv[1] = argv[0]; |
| 320 | return generate_output(argv+1, argc-1, s, long_options); |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 321 | } |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 322 | |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 323 | #if !ENABLE_GETOPT_LONG |
Denis Vlasenko | fe7cd64 | 2007-08-18 15:32:12 +0000 | [diff] [blame] | 324 | opt = getopt32(argv, "+o:n:qQs:Tu", &optstr, &name, &s_arg); |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 325 | #else |
Denis Vlasenko | bdc88fd | 2007-07-23 17:14:14 +0000 | [diff] [blame] | 326 | applet_long_options = getopt_longopts; |
Denis Vlasenko | 0919657 | 2007-07-21 13:27:44 +0000 | [diff] [blame] | 327 | opt_complementary = "l::"; |
Denis Vlasenko | fe7cd64 | 2007-08-18 15:32:12 +0000 | [diff] [blame] | 328 | opt = getopt32(argv, "+o:n:qQs:Tual:", |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 329 | &optstr, &name, &s_arg, &l_arg); |
| 330 | /* Effectuate the read options for the applet itself */ |
| 331 | while (l_arg) { |
| 332 | long_options = add_long_options(long_options, l_arg->data); |
| 333 | l_arg = l_arg->link; |
| 334 | } |
| 335 | #endif |
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 | if (opt & OPT_s) { |
| 338 | set_shell(s_arg); |
| 339 | } |
| 340 | |
| 341 | if (opt & OPT_T) { |
| 342 | return 4; |
| 343 | } |
| 344 | |
| 345 | /* All options controlling the applet have now been parsed */ |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 346 | if (!optstr) { |
| 347 | if (optind >= argc) |
| 348 | bb_error_msg_and_die("missing optstring argument"); |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 349 | optstr = argv[optind++]; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 350 | } |
Denis Vlasenko | 9c146a9 | 2007-04-07 10:25:04 +0000 | [diff] [blame] | 351 | |
| 352 | argv[optind-1] = name ? name : argv[0]; |
| 353 | return generate_output(argv+optind-1, argc-optind+1, optstr, long_options); |
Eric Andersen | a1f16bb | 2000-08-21 22:02:34 +0000 | [diff] [blame] | 354 | } |