--- /dev/null
+/* Routines for dealing with '\0' separated arg vectors.
+ Copyright (C) 1995-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _ARGZ_H
+#define _ARGZ_H 1
+
+#include <features.h>
+#include <errno.h>
+#include <string.h> /* Need size_t, and strchr is called below. */
+
+__BEGIN_DECLS
+
+/* error_t may or may not be available from errno.h, depending on the
+ operating system. */
+#ifndef __error_t_defined
+# define __error_t_defined 1
+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) __THROW;
+extern error_t argz_create (char *const __argv[], char **__restrict __argz,
+ size_t *__restrict __len) __THROW;
+
+/* 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) __THROW;
+
+/* Returns the number of strings in ARGZ. */
+extern size_t __argz_count (const char *__argz, size_t __len)
+ __THROW __attribute_pure__;
+extern size_t argz_count (const char *__argz, size_t __len)
+ __THROW __attribute_pure__;
+
+/* 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) __THROW;
+extern void argz_extract (const char *__restrict __argz, size_t __len,
+ char **__restrict __argv) __THROW;
+
+/* 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) __THROW;
+extern void argz_stringify (char *__argz, size_t __len, int __sep) __THROW;
+
+/* 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)
+ __THROW;
+
+/* 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) __THROW;
+
+/* 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)
+ __THROW;
+
+/* 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) __THROW;
+
+/* 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) __THROW;
+
+/* 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);
+\f
+/* 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) __THROW;
+extern char *argz_next (const char *__restrict __argz, size_t __argz_len,
+ const char *__restrict __entry) __THROW;
+
+#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. */
+
+__END_DECLS
+
+#endif /* argz.h */
projects / cross.git / blobdiff