1 /* Function declarations for libiberty.
2 Written by Cygnus Support, 1994.
4 The libiberty library provides a number of functions which are
5 missing on some operating systems. We do not declare those here,
6 to avoid conflicts with the system header files on operating
7 systems that do support those functions. In this file we only
8 declare those functions which are specific to libiberty. */
15 /* Build an argument vector from a string. Allocates memory using
16 malloc. Use freeargv to free the vector. */
18 extern char **buildargv
PARAMS ((char *));
20 /* Free a vector returned by buildargv. */
22 extern void freeargv
PARAMS ((char **));
24 /* Return the last component of a path name. Note that we can't use a
25 prototype here because the parameter is declared inconsistently
26 across different systems, sometimes as "char *" and sometimes as
29 #if defined(__GNU_LIBRARY__ ) || defined (__linux__)
30 extern char *basename
PARAMS ((const char *));
32 extern char *basename ();
35 /* Concatenate an arbitrary number of strings, up to (char *) NULL.
36 Allocates memory using xmalloc. */
38 extern char *concat
PARAMS ((const char *, ...));
40 /* Check whether two file descriptors refer to the same file. */
42 extern int fdmatch
PARAMS ((int fd1
, int fd2
));
44 /* Get the amount of time the process has run, in microseconds. */
46 extern long get_run_time
PARAMS ((void));
48 /* Choose a temporary directory to use for scratch files. */
50 extern char *choose_temp_base
PARAMS ((void));
52 /* Allocate memory filled with spaces. Allocates using malloc. */
54 extern const char *spaces
PARAMS ((int count
));
56 /* Return the maximum error number for which strerror will return a
59 extern int errno_max
PARAMS ((void));
61 /* Return the name of an errno value (e.g., strerrno (EINVAL) returns
64 extern const char *strerrno
PARAMS ((int));
66 /* Given the name of an errno value, return the value. */
68 extern int strtoerrno
PARAMS ((const char *));
70 /* ANSI's strerror(), but more robust. */
72 extern char *xstrerror
PARAMS ((int));
74 /* Return the maximum signal number for which strsignal will return a
77 extern int signo_max
PARAMS ((void));
79 /* Return a signal message string for a signal number
80 (e.g., strsignal (SIGHUP) returns something like "Hangup"). */
81 /* This is commented out as it can conflict with one in system headers.
82 We still document its existence though. */
84 /*extern const char *strsignal PARAMS ((int));*/
86 /* Return the name of a signal number (e.g., strsigno (SIGHUP) returns
89 extern const char *strsigno
PARAMS ((int));
91 /* Given the name of a signal, return its number. */
93 extern int strtosigno
PARAMS ((const char *));
95 /* Register a function to be run by xexit. Returns 0 on success. */
97 extern int xatexit
PARAMS ((void (*fn
) (void)));
99 /* Exit, calling all the functions registered with xatexit. */
102 extern void xexit
PARAMS ((int status
));
104 typedef void libiberty_voidfn
PARAMS ((int status
));
105 __volatile__ libiberty_voidfn xexit
;
108 /* Set the program name used by xmalloc. */
110 extern void xmalloc_set_program_name
PARAMS ((const char *));
112 /* Allocate memory without fail. If malloc fails, this will print a
113 message to stderr (using the name set by xmalloc_set_program_name,
114 if any) and then call xexit. */
116 #ifdef ANSI_PROTOTYPES
117 /* Get a definition for size_t. */
120 extern PTR xmalloc
PARAMS ((size_t));
122 /* Reallocate memory without fail. This works like xmalloc.
124 FIXME: We do not declare the parameter types for the same reason as
127 extern PTR xrealloc
PARAMS ((PTR
, size_t));
129 /* Copy a string into a memory buffer without fail. */
131 extern char *xstrdup
PARAMS ((const char *));
133 /* hex character manipulation routines */
135 #define _hex_array_size 256
137 extern char _hex_value
[_hex_array_size
];
138 extern void hex_init
PARAMS ((void));
139 #define hex_p(c) (hex_value (c) != _hex_bad)
140 /* If you change this, note well: Some code relies on side effects in
141 the argument being performed exactly once. */
142 #define hex_value(c) (_hex_value[(unsigned char) (c)])
144 /* Definitions used by the pexecute routine. */
146 #define PEXECUTE_FIRST 1
147 #define PEXECUTE_LAST 2
148 #define PEXECUTE_ONE (PEXECUTE_FIRST + PEXECUTE_LAST)
149 #define PEXECUTE_SEARCH 4
150 #define PEXECUTE_VERBOSE 8
152 /* Execute a program. */
154 extern int pexecute
PARAMS ((const char *, char * const *, const char *,
155 const char *, char **, char **, int));
157 /* Wait for pexecute to finish. */
159 extern int pwait
PARAMS ((int, int *, int));
161 #endif /* ! defined (LIBIBERTY_H) */