| 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 | |
| 13 | #include "ansidecl.h" |
| 14 | |
| 15 | /* Build an argument vector from a string. Allocates memory using |
| 16 | malloc. Use freeargv to free the vector. */ |
| 17 | |
| 18 | extern char **buildargv PARAMS ((char *)); |
| 19 | |
| 20 | /* Free a vector returned by buildargv. */ |
| 21 | |
| 22 | extern void freeargv PARAMS ((char **)); |
| 23 | |
| 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 |
| 27 | "const char *" */ |
| 28 | |
| 29 | extern char *basename (); |
| 30 | |
| 31 | /* Concatenate an arbitrary number of strings, up to (char *) NULL. |
| 32 | Allocates memory using xmalloc. */ |
| 33 | |
| 34 | extern char *concat PARAMS ((const char *, ...)); |
| 35 | |
| 36 | /* Check whether two file descriptors refer to the same file. */ |
| 37 | |
| 38 | extern int fdmatch PARAMS ((int fd1, int fd2)); |
| 39 | |
| 40 | /* Get the amount of time the process has run, in microseconds. */ |
| 41 | |
| 42 | extern long get_run_time PARAMS ((void)); |
| 43 | |
| 44 | /* Choose a temporary directory to use for scratch files. */ |
| 45 | |
| 46 | extern char *choose_temp_base PARAMS ((void)); |
| 47 | |
| 48 | /* Allocate memory filled with spaces. Allocates using malloc. */ |
| 49 | |
| 50 | extern const char *spaces PARAMS ((int count)); |
| 51 | |
| 52 | /* Return the maximum error number for which strerror will return a |
| 53 | string. */ |
| 54 | |
| 55 | extern int errno_max PARAMS ((void)); |
| 56 | |
| 57 | /* Return the name of an errno value (e.g., strerrno (EINVAL) returns |
| 58 | "EINVAL"). */ |
| 59 | |
| 60 | extern const char *strerrno PARAMS ((int)); |
| 61 | |
| 62 | /* Given the name of an errno value, return the value. */ |
| 63 | |
| 64 | extern int strtoerrno PARAMS ((const char *)); |
| 65 | |
| 66 | /* ANSI's strerror(), but more robust. */ |
| 67 | |
| 68 | extern char *xstrerror PARAMS ((int)); |
| 69 | |
| 70 | /* Return the maximum signal number for which strsignal will return a |
| 71 | string. */ |
| 72 | |
| 73 | extern int signo_max PARAMS ((void)); |
| 74 | |
| 75 | /* Return a signal message string for a signal number |
| 76 | (e.g., strsignal (SIGHUP) returns something like "Hangup"). */ |
| 77 | /* This is commented out as it can conflict with one in system headers. |
| 78 | We still document its existence though. */ |
| 79 | |
| 80 | /*extern const char *strsignal PARAMS ((int));*/ |
| 81 | |
| 82 | /* Return the name of a signal number (e.g., strsigno (SIGHUP) returns |
| 83 | "SIGHUP"). */ |
| 84 | |
| 85 | extern const char *strsigno PARAMS ((int)); |
| 86 | |
| 87 | /* Given the name of a signal, return its number. */ |
| 88 | |
| 89 | extern int strtosigno PARAMS ((const char *)); |
| 90 | |
| 91 | /* Register a function to be run by xexit. Returns 0 on success. */ |
| 92 | |
| 93 | extern int xatexit PARAMS ((void (*fn) (void))); |
| 94 | |
| 95 | /* Exit, calling all the functions registered with xatexit. */ |
| 96 | |
| 97 | #ifndef __GNUC__ |
| 98 | extern void xexit PARAMS ((int status)); |
| 99 | #else |
| 100 | typedef void libiberty_voidfn PARAMS ((int status)); |
| 101 | __volatile__ libiberty_voidfn xexit; |
| 102 | #endif |
| 103 | |
| 104 | /* Set the program name used by xmalloc. */ |
| 105 | |
| 106 | extern void xmalloc_set_program_name PARAMS ((const char *)); |
| 107 | |
| 108 | /* Allocate memory without fail. If malloc fails, this will print a |
| 109 | message to stderr (using the name set by xmalloc_set_program_name, |
| 110 | if any) and then call xexit. |
| 111 | |
| 112 | FIXME: We do not declare the parameter type (size_t) in order to |
| 113 | avoid conflicts with other declarations of xmalloc that exist in |
| 114 | programs which use libiberty. */ |
| 115 | |
| 116 | extern PTR xmalloc (); |
| 117 | |
| 118 | /* Reallocate memory without fail. This works like xmalloc. |
| 119 | |
| 120 | FIXME: We do not declare the parameter types for the same reason as |
| 121 | xmalloc. */ |
| 122 | |
| 123 | extern PTR xrealloc (); |
| 124 | |
| 125 | /* Copy a string into a memory buffer without fail. */ |
| 126 | |
| 127 | extern char *xstrdup PARAMS ((const char *)); |
| 128 | |
| 129 | /* hex character manipulation routines */ |
| 130 | |
| 131 | #define _hex_array_size 256 |
| 132 | #define _hex_bad 99 |
| 133 | extern char _hex_value[_hex_array_size]; |
| 134 | extern void hex_init PARAMS ((void)); |
| 135 | #define hex_p(c) (hex_value (c) != _hex_bad) |
| 136 | /* If you change this, note well: Some code relies on side effects in |
| 137 | the argument being performed exactly once. */ |
| 138 | #define hex_value(c) (_hex_value[(unsigned char) (c)]) |
| 139 | |
| 140 | #endif /* ! defined (LIBIBERTY_H) */ |