| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame^] | 1 | /* Copyright (C) 1991-2016 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, see |
| 16 | <http://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | #ifndef _WORDEXP_H |
| 19 | #define _WORDEXP_H 1 |
| 20 | |
| 21 | #include <features.h> |
| 22 | #define __need_size_t |
| 23 | #include <stddef.h> |
| 24 | |
| 25 | __BEGIN_DECLS |
| 26 | |
| 27 | /* Bits set in the FLAGS argument to `wordexp'. */ |
| 28 | enum |
| 29 | { |
| 30 | WRDE_DOOFFS = (1 << 0), /* Insert PWORDEXP->we_offs NULLs. */ |
| 31 | WRDE_APPEND = (1 << 1), /* Append to results of a previous call. */ |
| 32 | WRDE_NOCMD = (1 << 2), /* Don't do command substitution. */ |
| 33 | WRDE_REUSE = (1 << 3), /* Reuse storage in PWORDEXP. */ |
| 34 | WRDE_SHOWERR = (1 << 4), /* Don't redirect stderr to /dev/null. */ |
| 35 | WRDE_UNDEF = (1 << 5), /* Error for expanding undefined variables. */ |
| 36 | __WRDE_FLAGS = (WRDE_DOOFFS | WRDE_APPEND | WRDE_NOCMD | |
| 37 | WRDE_REUSE | WRDE_SHOWERR | WRDE_UNDEF) |
| 38 | }; |
| 39 | |
| 40 | /* Structure describing a word-expansion run. */ |
| 41 | typedef struct |
| 42 | { |
| 43 | size_t we_wordc; /* Count of words matched. */ |
| 44 | char **we_wordv; /* List of expanded words. */ |
| 45 | size_t we_offs; /* Slots to reserve in `we_wordv'. */ |
| 46 | } wordexp_t; |
| 47 | |
| 48 | /* Possible nonzero return values from `wordexp'. */ |
| 49 | enum |
| 50 | { |
| 51 | #ifdef __USE_XOPEN |
| 52 | WRDE_NOSYS = -1, /* Never used since we support `wordexp'. */ |
| 53 | #endif |
| 54 | WRDE_NOSPACE = 1, /* Ran out of memory. */ |
| 55 | WRDE_BADCHAR, /* A metachar appears in the wrong place. */ |
| 56 | WRDE_BADVAL, /* Undefined var reference with WRDE_UNDEF. */ |
| 57 | WRDE_CMDSUB, /* Command substitution with WRDE_NOCMD. */ |
| 58 | WRDE_SYNTAX /* Shell syntax error. */ |
| 59 | }; |
| 60 | |
| 61 | /* Do word expansion of WORDS into PWORDEXP. */ |
| 62 | extern int wordexp (const char *__restrict __words, |
| 63 | wordexp_t *__restrict __pwordexp, int __flags); |
| 64 | |
| 65 | /* Free the storage allocated by a `wordexp' call. */ |
| 66 | extern void wordfree (wordexp_t *__wordexp) __THROW; |
| 67 | |
| 68 | __END_DECLS |
| 69 | |
| 70 | #endif /* wordexp.h */ |