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/* Function declarations for libiberty. |
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Copyright 2001 Free Software Foundation, Inc. |
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Note - certain prototypes declared in this header file are for |
functions whoes implementation copyright does not belong to the |
FSF. Those prototypes are present in this file for reference |
purposes only and their presence in this file should not construed |
as an indication of ownership by the FSF of the implementation of |
those functions in any way or form whatsoever. |
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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 2, or (at your option) |
any later version. |
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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. |
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You should have received a copy of the GNU General Public License |
along with this program; if not, write to the Free Software |
Foundation, Inc., 59 Temple Place - Suite 330, |
Boston, MA 02111-1307, USA. |
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Written by Cygnus Support, 1994. |
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The libiberty library provides a number of functions which are |
missing on some operating systems. We do not declare those here, |
to avoid conflicts with the system header files on operating |
systems that do support those functions. In this file we only |
declare those functions which are specific to libiberty. */ |
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#ifndef LIBIBERTY_H |
#define LIBIBERTY_H |
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#ifdef __cplusplus |
extern "C" { |
#endif |
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#include "ansidecl.h" |
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#ifdef ANSI_PROTOTYPES |
/* Get a definition for size_t. */ |
#include <stddef.h> |
/* Get a definition for va_list. */ |
#include <stdarg.h> |
#endif |
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/* Build an argument vector from a string. Allocates memory using |
malloc. Use freeargv to free the vector. */ |
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extern char **buildargv PARAMS ((char *)) ATTRIBUTE_MALLOC; |
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/* Free a vector returned by buildargv. */ |
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extern void freeargv PARAMS ((char **)); |
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/* Duplicate an argument vector. Allocates memory using malloc. Use |
freeargv to free the vector. */ |
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extern char **dupargv PARAMS ((char **)) ATTRIBUTE_MALLOC; |
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/* Return the last component of a path name. Note that we can't use a |
prototype here because the parameter is declared inconsistently |
across different systems, sometimes as "char *" and sometimes as |
"const char *" */ |
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/* HAVE_DECL_* is a three-state macro: undefined, 0 or 1. If it is |
undefined, we haven't run the autoconf check so provide the |
declaration without arguments. If it is 0, we checked and failed |
to find the declaration so provide a fully prototyped one. If it |
is 1, we found it so don't provide any declaration at all. */ |
#if defined (__GNU_LIBRARY__ ) || defined (__linux__) || defined (__FreeBSD__) || defined (__OpenBSD__) || defined (__CYGWIN__) || defined (__CYGWIN32__) || (defined (HAVE_DECL_BASENAME) && !HAVE_DECL_BASENAME) |
extern char *basename PARAMS ((const char *)); |
#else |
# if !defined (HAVE_DECL_BASENAME) |
extern char *basename (); |
# endif |
#endif |
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/* A well-defined basename () that is always compiled in. */ |
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extern char *lbasename PARAMS ((const char *)); |
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/* Concatenate an arbitrary number of strings, up to (char *) NULL. |
Allocates memory using xmalloc. */ |
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extern char *concat PARAMS ((const char *, ...)) ATTRIBUTE_MALLOC; |
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/* Check whether two file descriptors refer to the same file. */ |
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extern int fdmatch PARAMS ((int fd1, int fd2)); |
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/* Get the working directory. The result is cached, so don't call |
chdir() between calls to getpwd(). */ |
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extern char * getpwd PARAMS ((void)); |
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/* Get the amount of time the process has run, in microseconds. */ |
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extern long get_run_time PARAMS ((void)); |
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/* Choose a temporary directory to use for scratch files. */ |
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extern char *choose_temp_base PARAMS ((void)) ATTRIBUTE_MALLOC; |
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/* Return a temporary file name or NULL if unable to create one. */ |
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extern char *make_temp_file PARAMS ((const char *)) ATTRIBUTE_MALLOC; |
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/* Allocate memory filled with spaces. Allocates using malloc. */ |
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extern const char *spaces PARAMS ((int count)); |
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/* Return the maximum error number for which strerror will return a |
string. */ |
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extern int errno_max PARAMS ((void)); |
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/* Return the name of an errno value (e.g., strerrno (EINVAL) returns |
"EINVAL"). */ |
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extern const char *strerrno PARAMS ((int)); |
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/* Given the name of an errno value, return the value. */ |
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extern int strtoerrno PARAMS ((const char *)); |
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/* ANSI's strerror(), but more robust. */ |
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extern char *xstrerror PARAMS ((int)); |
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/* Return the maximum signal number for which strsignal will return a |
string. */ |
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extern int signo_max PARAMS ((void)); |
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/* Return a signal message string for a signal number |
(e.g., strsignal (SIGHUP) returns something like "Hangup"). */ |
/* This is commented out as it can conflict with one in system headers. |
We still document its existence though. */ |
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/*extern const char *strsignal PARAMS ((int));*/ |
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/* Return the name of a signal number (e.g., strsigno (SIGHUP) returns |
"SIGHUP"). */ |
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extern const char *strsigno PARAMS ((int)); |
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/* Given the name of a signal, return its number. */ |
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extern int strtosigno PARAMS ((const char *)); |
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/* Register a function to be run by xexit. Returns 0 on success. */ |
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extern int xatexit PARAMS ((void (*fn) (void))); |
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/* Exit, calling all the functions registered with xatexit. */ |
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extern void xexit PARAMS ((int status)) ATTRIBUTE_NORETURN; |
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/* Set the program name used by xmalloc. */ |
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extern void xmalloc_set_program_name PARAMS ((const char *)); |
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/* Report an allocation failure. */ |
extern void xmalloc_failed PARAMS ((size_t)) ATTRIBUTE_NORETURN; |
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/* Allocate memory without fail. If malloc fails, this will print a |
message to stderr (using the name set by xmalloc_set_program_name, |
if any) and then call xexit. */ |
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extern PTR xmalloc PARAMS ((size_t)) ATTRIBUTE_MALLOC; |
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/* Reallocate memory without fail. This works like xmalloc. Note, |
realloc type functions are not suitable for attribute malloc since |
they may return the same address across multiple calls. */ |
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extern PTR xrealloc PARAMS ((PTR, size_t)); |
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/* Allocate memory without fail and set it to zero. This works like |
xmalloc. */ |
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extern PTR xcalloc PARAMS ((size_t, size_t)) ATTRIBUTE_MALLOC; |
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/* Copy a string into a memory buffer without fail. */ |
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extern char *xstrdup PARAMS ((const char *)) ATTRIBUTE_MALLOC; |
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/* Copy an existing memory buffer to a new memory buffer without fail. */ |
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extern PTR xmemdup PARAMS ((const PTR, size_t, size_t)) ATTRIBUTE_MALLOC; |
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/* hex character manipulation routines */ |
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#define _hex_array_size 256 |
#define _hex_bad 99 |
extern char _hex_value[_hex_array_size]; |
extern void hex_init PARAMS ((void)); |
#define hex_p(c) (hex_value (c) != _hex_bad) |
/* If you change this, note well: Some code relies on side effects in |
the argument being performed exactly once. */ |
#define hex_value(c) (_hex_value[(unsigned char) (c)]) |
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/* Definitions used by the pexecute routine. */ |
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#define PEXECUTE_FIRST 1 |
#define PEXECUTE_LAST 2 |
#define PEXECUTE_ONE (PEXECUTE_FIRST + PEXECUTE_LAST) |
#define PEXECUTE_SEARCH 4 |
#define PEXECUTE_VERBOSE 8 |
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/* Execute a program. */ |
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extern int pexecute PARAMS ((const char *, char * const *, const char *, |
const char *, char **, char **, int)); |
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/* Wait for pexecute to finish. */ |
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extern int pwait PARAMS ((int, int *, int)); |
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/* Like sprintf but provides a pointer to malloc'd storage, which must |
be freed by the caller. */ |
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extern int asprintf PARAMS ((char **, const char *, ...)) ATTRIBUTE_PRINTF_2; |
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/* Like vsprintf but provides a pointer to malloc'd storage, which |
must be freed by the caller. */ |
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extern int vasprintf PARAMS ((char **, const char *, va_list)) |
ATTRIBUTE_PRINTF(2,0); |
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#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) |
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/* Drastically simplified alloca configurator. If we're using GCC, |
we use __builtin_alloca; otherwise we use the C alloca. The C |
alloca is always available. You can override GCC by defining |
USE_C_ALLOCA yourself. The canonical autoconf macro C_ALLOCA is |
also set/unset as it is often used to indicate whether code needs |
to call alloca(0). */ |
extern PTR C_alloca PARAMS((size_t)); |
#undef alloca |
#if GCC_VERSION >= 2000 && !defined USE_C_ALLOCA |
# define alloca(x) __builtin_alloca(x) |
# undef C_ALLOCA |
#else |
# define alloca(x) C_alloca(x) |
# undef USE_C_ALLOCA |
# define USE_C_ALLOCA 1 |
# undef C_ALLOCA |
# define C_ALLOCA 1 |
#endif |
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#ifdef __cplusplus |
} |
#endif |
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#endif /* ! defined (LIBIBERTY_H) */ |