4.3BSD - /usr/src/usr.lib/libI77/err.c

   1: /*
   2:  * Copyright (c) 1980 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  *
   6:  *	@(#)err.c	5.2	7/30/85
   7:  */
   8: 
   9: /*
  10:  * fatal(): i/o error routine
  11:  * flush_(): flush file buffer
  12:  */
  13: 
  14: #include <sys/types.h>
  15: #include <sys/stat.h>
  16: #include <signal.h>
  17: #include "fio.h"
  18: 
  19: /*
  20:  * global definitions
  21:  */
  22: 
  23: unit units[MXUNIT]; /*unit table*/
  24: flag reading;       /*1 if reading,		0 if writing*/
  25: flag external;      /*1 if external io,	0 if internal */
  26: flag sequential;    /*1 if sequential io,	0 if direct*/
  27: flag formatted;     /*1 if formatted io,	0 if unformatted,
  28: 				-1 if list directed, -2 if namelist */
  29: char *fmtbuf, *icptr, *icend, *fmtptr;
  30: int (*doed)(),(*doned)();
  31: int (*doend)(),(*donewrec)(),(*dorevert)(),(*dotab)();
  32: int (*lioproc)();
  33: int (*getn)(),(*putn)(),(*ungetn)();    /*for formatted io*/
  34: FILE *cf;       /*current file structure*/
  35: unit *curunit;      /*current unit structure*/
  36: int lunit;      /*current logical unit*/
  37: char *lfname;       /*current filename*/
  38: int recpos;     /*place in current record*/
  39: ftnint recnum;      /* current record number */
  40: int reclen;     /* current record length */
  41: int cursor,scale;
  42: int radix;
  43: ioflag signit,tab,cplus,cblank,elist,errflag,endflag,lquit,l_first;
  44: flag leof;
  45: int lcount,line_len;
  46: struct ioiflg ioiflg_;  /* initialization flags */
  47: 
  48: /*error messages*/
  49: 
  50: extern char *sys_errlist[];
  51: extern int sys_nerr;
  52: 
  53: extern char *f_errlist[];
  54: extern int f_nerr;
  55: 
  56: 
  57: fatal(n,s) char *s;
  58: {
  59:     ftnint lu;
  60: 
  61:     for (lu=1; lu < MXUNIT; lu++)
  62:         flush_(&lu);
  63:     if(n<0)
  64:         fprintf(stderr,"%s: [%d] end of file\n",s,n);
  65:     else if(n>=0 && n<sys_nerr)
  66:         fprintf(stderr,"%s: [%d] %s\n",s,n,sys_errlist[n]);
  67:     else if(n>=F_ER && n<F_MAXERR)
  68:         fprintf(stderr,"%s: [%d] %s\n",s,n,f_errlist[n-F_ER]);
  69:     else
  70:         fprintf(stderr,"%s: [%d] unknown error number\n",s,n);
  71:     if(external)
  72:     {
  73:         if(!lfname) switch (lunit)
  74:         {   case STDERR: lfname = "stderr";
  75:                     break;
  76:             case STDIN:  lfname = "stdin";
  77:                     break;
  78:             case STDOUT: lfname = "stdout";
  79:                     break;
  80:             default:     lfname = "";
  81:         }
  82:         fprintf(stderr,"logical unit %d, named '%s'\n",lunit,lfname);
  83:     }
  84:     if (elist)
  85:     {   fprintf(stderr,"lately: %s %s %s %s I/O\n",
  86:             reading?"reading":"writing",
  87:             sequential?"sequential":"direct",
  88:             formatted>0?"formatted":(formatted==0?"unformatted":
  89:                 (formatted==LISTDIRECTED?"list":"namelist")),
  90:             external?"external":"internal");
  91:         if (formatted)
  92:         {   if(fmtbuf) prnt_fmt(n);
  93:             if (external)
  94:             {   if(reading && curunit->useek)
  95:                     prnt_ext();  /* print external data */
  96:             }
  97:             else prnt_int();    /* print internal array */
  98:         }
  99:     }
 100:     f77_abort(n);
 101: }
 102: 
 103: LOCAL
 104: prnt_ext()
 105: {   int ch;
 106:     int i=1;
 107:     long loc;
 108:     fprintf (stderr, "part of last data: ");
 109:     loc = ftell(curunit->ufd);
 110:     if(loc)
 111:     {   if(loc==1L) rewind(curunit->ufd);
 112:         else for(;i<12 && last_char(curunit->ufd)!='\n';i++);
 113:         while(i--) ffputc(fgetc(curunit->ufd),stderr);
 114:     }
 115:     fputc('|',stderr);
 116:     for(i=0;i<5 && (ch=fgetc(curunit->ufd))!=EOF;i++) ffputc(ch,stderr);
 117:     fputc('\n',stderr);
 118: }
 119: 
 120: LOCAL
 121: prnt_int()
 122: {   char *ep;
 123:     fprintf (stderr,"part of last string: ");
 124:     ep = icptr - (recpos<12?recpos:12);
 125:     while (ep<icptr) ffputc(*ep++,stderr);
 126:     fputc('|',stderr);
 127:     while (ep<(icptr+5) && ep<icend) ffputc(*ep++,stderr);
 128:     fputc('\n',stderr);
 129: }
 130: 
 131: LOCAL
 132: prnt_fmt(n) int n;
 133: {   int i; char *ep;
 134:     fprintf(stderr, "format: ");
 135:     if(n==F_ERFMT)
 136:     {   i = fmtptr - fmtbuf;
 137:         ep = fmtptr - (i<25?i:25);
 138:         if(ep != fmtbuf) fprintf(stderr, "... ");
 139:         i = i + 5;
 140:     }
 141:     else
 142:     {   ep = fmtbuf;
 143:         i = 25;
 144:         fmtptr = fmtbuf - 1;
 145:     }
 146:     while(i && *ep)
 147:     {   ffputc((*ep==GLITCH)?'"':*ep,stderr);
 148:         if(ep==fmtptr) fputc('|',stderr);
 149:         ep++; i--;
 150:     }
 151:     if(*ep) fprintf(stderr, " ...");
 152:     fputc('\n',stderr);
 153: }
 154: 
 155: LOCAL
 156: ffputc(c, f)
 157: int c;
 158: FILE    *f;
 159: {
 160:     c &= 0177;
 161:     if (c < ' ' || c == 0177)
 162:     {
 163:         fputc('^', f);
 164:         c ^= 0100;
 165:     }
 166:     fputc(c, f);
 167: }
 168: 
 169: ftnint
 170: flush_(u) ftnint *u;
 171: {
 172:     FILE *F;
 173: 
 174:     if(not_legal(*u))
 175:         return(F_ERUNIT);
 176:     F = units[*u].ufd;
 177:     if(F)
 178:         return(fflush(F));
 179:     else
 180:         return(F_ERNOPEN);
 181: }

Defined functions

Defined variables