2.9BSD - /usr/src/ucb/vsh/showopen.c

   1: #include "hd.h"
   2: 
   3: /* Open a showfile */
   4: /* Open with rwmode of "r" or "w" just like fopen */
   5: /* Smode GREPMODE opens for grep;  Smode MAKEMODE opens for Make;  */
   6: 
   7: FILE *showopen (rwmode, smode) char *rwmode;  int smode; {
   8: 
   9:     extern char *envhome;
  10:     char buf[STRMAX + 20];
  11:     FILE *tfile;
  12:     char *fname;
  13: 
  14:     fname = smode == GREPMODE ? GREPOUT : MAKERROR;
  15:     tfile = fopen (fname, rwmode);
  16:     if (tfile == NULL && smode == GREPMODE) {
  17:         if (access (fname, 0) == 0) {
  18:             myperror (fname);
  19:             return NULL;
  20:         }
  21:         strcpy (buf, envhome);
  22:         strcat (buf, "/");
  23:         strcat (buf, fname);
  24:         tfile = fopen (buf, rwmode);
  25:     }
  26:     if (tfile == NULL) {
  27:         myperror (fname);
  28:     }
  29:     return tfile;
  30: }

Defined functions