mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-26 07:29:06 +08:00
f1ec563538
* libI77/fio.h (FSEEK): Enforce type of second parameter to be off_t when prototype is missing from system headers for the non-standard function. From-SVN: r48546
126 lines
3.1 KiB
C
126 lines
3.1 KiB
C
#include <sys/types.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#ifndef NULL
|
|
/* ANSI C */
|
|
#include <stddef.h>
|
|
#endif
|
|
#ifdef STDC_HEADERS
|
|
#include <string.h>
|
|
#endif
|
|
|
|
#ifndef SEEK_SET
|
|
#define SEEK_SET 0
|
|
#define SEEK_CUR 1
|
|
#define SEEK_END 2
|
|
#endif
|
|
|
|
/* Only use fseeko/ftello if they are both there. */
|
|
|
|
#if defined (HAVE_FSEEKO) && defined (HAVE_FTELLO)
|
|
/* The cast helps in any case where the fseeko() prototype is somehow missing
|
|
(perhaps because _POSIX_SOURCE is defined and the system headers try
|
|
to keep a clean namespace in that case) even though the autoconf test
|
|
found the non-standard function via its trivial link test. */
|
|
#define FSEEK(a,b,c) fseeko(a, (off_t) b, c)
|
|
#define FTELL ftello
|
|
#else
|
|
#define FSEEK fseek
|
|
#define FTELL ftell
|
|
#endif
|
|
|
|
#if defined (MSDOS) && !defined (GO32)
|
|
#ifndef NON_UNIX_STDIO
|
|
#define NON_UNIX_STDIO
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef UIOLEN_int
|
|
typedef int uiolen;
|
|
#else
|
|
typedef long uiolen;
|
|
#endif
|
|
|
|
/*units*/
|
|
typedef struct
|
|
{ FILE *ufd; /*0=unconnected*/
|
|
char *ufnm;
|
|
#if !(defined (MSDOS) && !defined (GO32))
|
|
long uinode;
|
|
int udev;
|
|
#endif
|
|
int url; /*0=sequential*/
|
|
flag useek; /*true=can backspace, use dir, ...*/
|
|
flag ufmt;
|
|
flag urw; /* (1 for can read) | (2 for can write) */
|
|
flag ublnk;
|
|
flag uend;
|
|
flag uwrt; /*last io was write*/
|
|
flag uscrtch;
|
|
} unit;
|
|
|
|
extern int f__init;
|
|
extern cilist *f__elist; /*active external io list*/
|
|
extern flag f__reading,f__external,f__sequential,f__formatted;
|
|
#undef Void
|
|
#ifdef KR_headers
|
|
#define Void /*void*/
|
|
extern int (*f__getn)(); /* for formatted input */
|
|
extern void (*f__putn)(); /* for formatted output */
|
|
extern void x_putc();
|
|
extern long f__inode();
|
|
extern VOID sig_die();
|
|
extern int (*f__donewrec)(), t_putc(), x_wSL();
|
|
extern int c_sfe(), err__fl(), xrd_SL(), f__putbuf();
|
|
#else
|
|
#define Void void
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
extern int (*f__getn)(void); /* for formatted input */
|
|
extern void (*f__putn)(int); /* for formatted output */
|
|
extern void x_putc(int);
|
|
extern long f__inode(char*,int*);
|
|
extern void sig_die(char*,int);
|
|
extern void f__fatal(int,char*);
|
|
extern int t_runc(alist*);
|
|
extern int f__nowreading(unit*), f__nowwriting(unit*);
|
|
extern int fk_open(int,int,ftnint);
|
|
extern int en_fio(void);
|
|
extern void f_init(void);
|
|
extern int (*f__donewrec)(void), t_putc(int), x_wSL(void);
|
|
extern void b_char(char*,char*,ftnlen), g_char(char*,ftnlen,char*);
|
|
extern int c_sfe(cilist*), z_rnew(void);
|
|
extern int isatty(int);
|
|
extern int err__fl(int,int,char*);
|
|
extern int xrd_SL(void);
|
|
extern int f__putbuf(int);
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif
|
|
extern int (*f__doend)(Void);
|
|
extern FILE *f__cf; /*current file*/
|
|
extern unit *f__curunit; /*current unit*/
|
|
extern unit f__units[];
|
|
#define err(f,m,s) do {if(f) {f__init &= ~2; errno= m;} else f__fatal(m,s); return(m);} while(0)
|
|
#define errfl(f,m,s) do {return err__fl((int)f,m,s);} while(0)
|
|
|
|
/*Table sizes*/
|
|
#define MXUNIT 100
|
|
|
|
extern int f__recpos; /*position in current record*/
|
|
extern int f__cursor; /* offset to move to */
|
|
extern int f__hiwater; /* so TL doesn't confuse us */
|
|
|
|
#define WRITE 1
|
|
#define READ 2
|
|
#define SEQ 3
|
|
#define DIR 4
|
|
#define FMT 5
|
|
#define UNF 6
|
|
#define EXT 7
|
|
#define INT 8
|
|
|
|
#define buf_end(x) (x->_flag & _IONBF ? x->_ptr : x->_base + BUFSIZ)
|