| /* Routines for dealing with '\0' separated arg vectors. |
| Copyright (C) 1995-2000, 2004, 2007, 2009-2020 Free Software Foundation, |
| Inc. |
| This file is part of the GNU C Library. |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| |
| #ifndef _ARGZ_H |
| #define _ARGZ_H 1 |
| |
| |
| #define __need_error_t |
| #include <errno.h> |
| #include <string.h> /* Need size_t, and strchr is called below. */ |
| |
| #ifndef const |
| # define const const |
| #endif |
| |
| #ifndef __error_t_defined |
| typedef int error_t; |
| #endif |
| |
| |
| |
| /* Make a '\0' separated arg vector from a unix argv vector, returning it in |
| ARGZ, and the total length in LEN. If a memory allocation error occurs, |
| ENOMEM is returned, otherwise 0. The result can be destroyed using free. */ |
| |
| extern error_t argz_create (char *const __argv[], char **restrict __argz, |
| size_t *restrict __len); |
| |
| /* Make a '\0' separated arg vector from a SEP separated list in |
| STRING, returning it in ARGZ, and the total length in LEN. If a |
| memory allocation error occurs, ENOMEM is returned, otherwise 0. |
| The result can be destroyed using free. */ |
| |
| extern error_t argz_create_sep (const char *restrict string, |
| int __sep, char **restrict __argz, |
| size_t *restrict __len); |
| |
| /* Returns the number of strings in ARGZ. */ |
| |
| extern size_t argz_count (const char *__argz, size_t __len) |
| ; |
| |
| /* Puts pointers to each string in ARGZ into ARGV, which must be large enough |
| to hold them all. */ |
| |
| extern void argz_extract (const char *restrict __argz, size_t __len, |
| char **restrict __argv); |
| |
| /* Make '\0' separated arg vector ARGZ printable by converting all the '\0's |
| except the last into the character SEP. */ |
| |
| extern void argz_stringify (char *__argz, size_t __len, int __sep); |
| |
| /* Append BUF, of length BUF_LEN to the argz vector in ARGZ & ARGZ_LEN. */ |
| |
| extern error_t argz_append (char **restrict __argz, |
| size_t *restrict __argz_len, |
| const char *restrict __buf, size_t __buf_len) |
| ; |
| |
| /* Append STR to the argz vector in ARGZ & ARGZ_LEN. */ |
| |
| extern error_t argz_add (char **restrict __argz, |
| size_t *restrict __argz_len, |
| const char *restrict str); |
| |
| /* Append SEP separated list in STRING to the argz vector in ARGZ & |
| ARGZ_LEN. */ |
| |
| extern error_t argz_add_sep (char **restrict __argz, |
| size_t *restrict __argz_len, |
| const char *restrict string, int __delim) |
| ; |
| |
| /* Delete ENTRY from ARGZ & ARGZ_LEN, if it appears there. */ |
| |
| extern void argz_delete (char **restrict __argz, |
| size_t *restrict __argz_len, |
| char *restrict __entry); |
| |
| /* Insert ENTRY into ARGZ & ARGZ_LEN before BEFORE, which should be an |
| existing entry in ARGZ; if BEFORE is NULL, ENTRY is appended to the end. |
| Since ARGZ's first entry is the same as ARGZ, argz_insert (ARGZ, ARGZ_LEN, |
| ARGZ, ENTRY) will insert ENTRY at the beginning of ARGZ. If BEFORE is not |
| in ARGZ, EINVAL is returned, else if memory can't be allocated for the new |
| ARGZ, ENOMEM is returned, else 0. */ |
| |
| extern error_t argz_insert (char **restrict __argz, |
| size_t *restrict __argz_len, |
| char *restrict __before, |
| const char *restrict __entry); |
| |
| /* Replace any occurrences of the string STR in ARGZ with WITH, reallocating |
| ARGZ as necessary. If REPLACE_COUNT is non-zero, *REPLACE_COUNT will be |
| incremented by number of replacements performed. */ |
| |
| extern error_t argz_replace (char **restrict __argz, |
| size_t *restrict __argz_len, |
| const char *restrict str, |
| const char *restrict __with, |
| unsigned int *restrict __replace_count); |
| |
| /* Returns the next entry in ARGZ & ARGZ_LEN after ENTRY, or NULL if there |
| are no more. If entry is NULL, then the first entry is returned. This |
| behavior allows two convenient iteration styles: |
| |
| char *entry = 0; |
| while ((entry = argz_next (argz, argz_len, entry))) |
| ...; |
| |
| or |
| |
| char *entry; |
| for (entry = argz; entry; entry = argz_next (argz, argz_len, entry)) |
| ...; |
| */ |
| |
| extern char *argz_next (const char *restrict __argz, size_t __argz_len, |
| const char *restrict __entry); |
| |
| #ifdef __USE_EXTERN_INLINES |
| __extern_inline char * |
| __NTH (argz_next (const char *__argz, size_t __argz_len, |
| const char *__entry)) |
| { |
| if (__entry) |
| { |
| if (__entry < __argz + __argz_len) |
| __entry = strchr (__entry, '\0') + 1; |
| |
| return __entry >= __argz + __argz_len ? (char *) NULL : (char *) __entry; |
| } |
| else |
| return __argz_len > 0 ? (char *) __argz : 0; |
| } |
| __extern_inline char * |
| __NTH (argz_next (const char *__argz, size_t __argz_len, |
| const char *__entry)) |
| { |
| return argz_next (__argz, __argz_len, __entry); |
| } |
| #endif /* Use extern inlines. */ |
| |
| |
| #endif /* argz.h */ |