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106 lines
2.4 KiB
C
106 lines
2.4 KiB
C
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#include <stdio.h>
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#include <errno.h>
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#ifndef NULL
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/* ANSI C */
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#include <stddef.h>
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#endif
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#ifdef STDC_HEADERS
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#include <string.h>
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#endif
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#ifndef SEEK_SET
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#define SEEK_SET 0
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#define SEEK_CUR 1
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#define SEEK_END 2
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#endif
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#if defined (MSDOS) && !defined (GO32)
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#ifndef NON_UNIX_STDIO
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#define NON_UNIX_STDIO
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#endif
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#endif
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#ifdef UIOLEN_int
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typedef int uiolen;
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#else
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typedef long uiolen;
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#endif
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/*units*/
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typedef struct
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{ FILE *ufd; /*0=unconnected*/
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char *ufnm;
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#if !(defined (MSDOS) && !defined (GO32))
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long uinode;
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int udev;
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#endif
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int url; /*0=sequential*/
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flag useek; /*true=can backspace, use dir, ...*/
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flag ufmt;
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flag uprnt;
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flag ublnk;
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flag uend;
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flag uwrt; /*last io was write*/
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flag uscrtch;
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} unit;
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extern int f__init;
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extern cilist *f__elist; /*active external io list*/
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extern flag f__reading,f__external,f__sequential,f__formatted;
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#undef Void
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#ifdef KR_headers
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#define Void /*void*/
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extern int (*f__getn)(),(*f__putn)(); /*for formatted io*/
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extern long f__inode();
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extern VOID sig_die();
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extern int (*f__donewrec)(), t_putc(), x_wSL();
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extern int c_sfe(), err__fl(), xrd_SL();
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#else
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#define Void void
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern int (*f__getn)(void),(*f__putn)(int); /*for formatted io*/
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extern long f__inode(char*,int*);
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extern void sig_die(char*,int);
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extern void f__fatal(int,char*);
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extern int t_runc(alist*);
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extern int f__nowreading(unit*), f__nowwriting(unit*);
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extern int fk_open(int,int,ftnint);
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extern int en_fio(void);
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extern void f_init(void);
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extern int (*f__donewrec)(void), t_putc(int), x_wSL(void);
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extern void b_char(char*,char*,ftnlen), g_char(char*,ftnlen,char*);
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extern int c_sfe(cilist*), z_rnew(void);
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extern int isatty(int);
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extern int err__fl(int,int,char*);
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extern int xrd_SL(void);
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#ifdef __cplusplus
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}
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#endif
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#endif
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extern int (*f__doend)(Void);
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extern FILE *f__cf; /*current file*/
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extern unit *f__curunit; /*current unit*/
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extern unit f__units[];
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#define err(f,m,s) do {if(f) {f__init &= ~2; errno= m;} else f__fatal(m,s); return(m);} while(0)
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#define errfl(f,m,s) do {return err__fl((int)f,m,s);} while(0)
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/*Table sizes*/
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#define MXUNIT 100
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extern int f__recpos; /*position in current record*/
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extern int f__cursor; /* offset to move to */
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extern int f__hiwater; /* so TL doesn't confuse us */
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#define WRITE 1
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#define READ 2
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#define SEQ 3
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#define DIR 4
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#define FMT 5
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#define UNF 6
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#define EXT 7
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#define INT 8
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#define buf_end(x) (x->_flag & _IONBF ? x->_ptr : x->_base + BUFSIZ)
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