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6599da04 JM |
1 | /* Function declarations for libiberty. |
2 | Written by Cygnus Support, 1994. | |
3 | ||
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. */ | |
9 | ||
10 | #ifndef LIBIBERTY_H | |
11 | #define LIBIBERTY_H | |
12 | ||
5a4917e5 JL |
13 | #ifdef __cplusplus |
14 | extern "C" { | |
15 | #endif | |
16 | ||
6599da04 JM |
17 | #include "ansidecl.h" |
18 | ||
19 | /* Build an argument vector from a string. Allocates memory using | |
20 | malloc. Use freeargv to free the vector. */ | |
21 | ||
22 | extern char **buildargv PARAMS ((char *)); | |
23 | ||
24 | /* Free a vector returned by buildargv. */ | |
25 | ||
26 | extern void freeargv PARAMS ((char **)); | |
27 | ||
5a4917e5 JL |
28 | /* Duplicate an argument vector. Allocates memory using malloc. Use |
29 | freeargv to free the vector. */ | |
30 | ||
31 | extern char **dupargv PARAMS ((char **)); | |
32 | ||
33 | ||
6599da04 JM |
34 | /* Return the last component of a path name. Note that we can't use a |
35 | prototype here because the parameter is declared inconsistently | |
36 | across different systems, sometimes as "char *" and sometimes as | |
37 | "const char *" */ | |
38 | ||
39 | #if defined(__GNU_LIBRARY__ ) || defined (__linux__) | |
40 | extern char *basename PARAMS ((const char *)); | |
41 | #else | |
42 | extern char *basename (); | |
43 | #endif | |
44 | ||
45 | /* Concatenate an arbitrary number of strings, up to (char *) NULL. | |
46 | Allocates memory using xmalloc. */ | |
47 | ||
48 | extern char *concat PARAMS ((const char *, ...)); | |
49 | ||
50 | /* Check whether two file descriptors refer to the same file. */ | |
51 | ||
52 | extern int fdmatch PARAMS ((int fd1, int fd2)); | |
53 | ||
54 | /* Get the amount of time the process has run, in microseconds. */ | |
55 | ||
56 | extern long get_run_time PARAMS ((void)); | |
57 | ||
58 | /* Choose a temporary directory to use for scratch files. */ | |
59 | ||
60 | extern char *choose_temp_base PARAMS ((void)); | |
61 | ||
62 | /* Allocate memory filled with spaces. Allocates using malloc. */ | |
63 | ||
64 | extern const char *spaces PARAMS ((int count)); | |
65 | ||
66 | /* Return the maximum error number for which strerror will return a | |
67 | string. */ | |
68 | ||
69 | extern int errno_max PARAMS ((void)); | |
70 | ||
71 | /* Return the name of an errno value (e.g., strerrno (EINVAL) returns | |
72 | "EINVAL"). */ | |
73 | ||
74 | extern const char *strerrno PARAMS ((int)); | |
75 | ||
76 | /* Given the name of an errno value, return the value. */ | |
77 | ||
78 | extern int strtoerrno PARAMS ((const char *)); | |
79 | ||
80 | /* ANSI's strerror(), but more robust. */ | |
81 | ||
82 | extern char *xstrerror PARAMS ((int)); | |
83 | ||
84 | /* Return the maximum signal number for which strsignal will return a | |
85 | string. */ | |
86 | ||
87 | extern int signo_max PARAMS ((void)); | |
88 | ||
89 | /* Return a signal message string for a signal number | |
90 | (e.g., strsignal (SIGHUP) returns something like "Hangup"). */ | |
91 | /* This is commented out as it can conflict with one in system headers. | |
92 | We still document its existence though. */ | |
93 | ||
94 | /*extern const char *strsignal PARAMS ((int));*/ | |
95 | ||
96 | /* Return the name of a signal number (e.g., strsigno (SIGHUP) returns | |
97 | "SIGHUP"). */ | |
98 | ||
99 | extern const char *strsigno PARAMS ((int)); | |
100 | ||
101 | /* Given the name of a signal, return its number. */ | |
102 | ||
103 | extern int strtosigno PARAMS ((const char *)); | |
104 | ||
105 | /* Register a function to be run by xexit. Returns 0 on success. */ | |
106 | ||
107 | extern int xatexit PARAMS ((void (*fn) (void))); | |
108 | ||
109 | /* Exit, calling all the functions registered with xatexit. */ | |
110 | ||
111 | #ifndef __GNUC__ | |
112 | extern void xexit PARAMS ((int status)); | |
113 | #else | |
114 | typedef void libiberty_voidfn PARAMS ((int status)); | |
115 | __volatile__ libiberty_voidfn xexit; | |
116 | #endif | |
117 | ||
118 | /* Set the program name used by xmalloc. */ | |
119 | ||
120 | extern void xmalloc_set_program_name PARAMS ((const char *)); | |
121 | ||
122 | /* Allocate memory without fail. If malloc fails, this will print a | |
123 | message to stderr (using the name set by xmalloc_set_program_name, | |
124 | if any) and then call xexit. */ | |
125 | ||
126 | #ifdef ANSI_PROTOTYPES | |
127 | /* Get a definition for size_t. */ | |
128 | #include <stddef.h> | |
129 | #endif | |
130 | extern PTR xmalloc PARAMS ((size_t)); | |
131 | ||
132 | /* Reallocate memory without fail. This works like xmalloc. | |
133 | ||
134 | FIXME: We do not declare the parameter types for the same reason as | |
135 | xmalloc. */ | |
136 | ||
137 | extern PTR xrealloc PARAMS ((PTR, size_t)); | |
138 | ||
139 | /* Copy a string into a memory buffer without fail. */ | |
140 | ||
141 | extern char *xstrdup PARAMS ((const char *)); | |
142 | ||
143 | /* hex character manipulation routines */ | |
144 | ||
145 | #define _hex_array_size 256 | |
146 | #define _hex_bad 99 | |
147 | extern char _hex_value[_hex_array_size]; | |
148 | extern void hex_init PARAMS ((void)); | |
149 | #define hex_p(c) (hex_value (c) != _hex_bad) | |
150 | /* If you change this, note well: Some code relies on side effects in | |
151 | the argument being performed exactly once. */ | |
152 | #define hex_value(c) (_hex_value[(unsigned char) (c)]) | |
153 | ||
154 | /* Definitions used by the pexecute routine. */ | |
155 | ||
156 | #define PEXECUTE_FIRST 1 | |
157 | #define PEXECUTE_LAST 2 | |
158 | #define PEXECUTE_ONE (PEXECUTE_FIRST + PEXECUTE_LAST) | |
159 | #define PEXECUTE_SEARCH 4 | |
160 | #define PEXECUTE_VERBOSE 8 | |
161 | ||
162 | /* Execute a program. */ | |
163 | ||
164 | extern int pexecute PARAMS ((const char *, char * const *, const char *, | |
165 | const char *, char **, char **, int)); | |
166 | ||
167 | /* Wait for pexecute to finish. */ | |
168 | ||
169 | extern int pwait PARAMS ((int, int *, int)); | |
170 | ||
5a4917e5 JL |
171 | #ifdef __cplusplus |
172 | } | |
173 | #endif | |
174 | ||
175 | ||
6599da04 | 176 | #endif /* ! defined (LIBIBERTY_H) */ |