Added a -N switch to the standard attach_unit routine to force a new file to be created.

This commit is contained in:
Mark Pizzolato 2013-04-14 17:15:31 -07:00
parent 958ce00b2e
commit d1db9ce203
2 changed files with 34 additions and 24 deletions

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58
scp.c
View file

@ -3394,33 +3394,43 @@ if (sim_switches & SWMASK ('R')) { /* read only? */
if (!sim_quiet) if (!sim_quiet)
printf ("%s: unit is read only\n", sim_dname (dptr)); printf ("%s: unit is read only\n", sim_dname (dptr));
} }
else { /* normal */ else {
uptr->fileref = sim_fopen (cptr, "rb+"); /* open r/w */ if (sim_switches & SWMASK ('N')) { /* new file only? */
if (uptr->fileref == NULL) { /* open fail? */ uptr->fileref = sim_fopen (cptr, "wb+"); /* open new file */
if (uptr->fileref == NULL) /* open fail? */
return attach_err (uptr, SCPE_OPENERR); /* yes, error */
if (!sim_quiet)
printf ("%s: creating new file\n", sim_dname (dptr));
}
else { /* normal */
uptr->fileref = sim_fopen (cptr, "rb+"); /* open r/w */
if (uptr->fileref == NULL) { /* open fail? */
#if defined(EPERM) #if defined(EPERM)
if ((errno == EROFS) || (errno == EACCES) || (errno == EPERM)) {/* read only? */ if ((errno == EROFS) || (errno == EACCES) || (errno == EPERM)) {/* read only? */
#else #else
if ((errno == EROFS) || (errno == EACCES)) { /* read only? */ if ((errno == EROFS) || (errno == EACCES)) {/* read only? */
#endif #endif
if ((uptr->flags & UNIT_ROABLE) == 0) /* allowed? */ if ((uptr->flags & UNIT_ROABLE) == 0) /* allowed? */
return attach_err (uptr, SCPE_NORO); /* no error */ return attach_err (uptr, SCPE_NORO);/* no error */
uptr->fileref = sim_fopen (cptr, "rb"); /* open rd only */ uptr->fileref = sim_fopen (cptr, "rb"); /* open rd only */
if (uptr->fileref == NULL) /* open fail? */ if (uptr->fileref == NULL) /* open fail? */
return attach_err (uptr, SCPE_OPENERR); /* yes, error */ return attach_err (uptr, SCPE_OPENERR); /* yes, error */
uptr->flags = uptr->flags | UNIT_RO; /* set rd only */ uptr->flags = uptr->flags | UNIT_RO; /* set rd only */
if (!sim_quiet) if (!sim_quiet)
printf ("%s: unit is read only\n", sim_dname (dptr)); printf ("%s: unit is read only\n", sim_dname (dptr));
} }
else { /* doesn't exist */ else { /* doesn't exist */
if (sim_switches & SWMASK ('E')) /* must exist? */ if (sim_switches & SWMASK ('E')) /* must exist? */
return attach_err (uptr, SCPE_OPENERR); /* yes, error */ return attach_err (uptr, SCPE_OPENERR); /* yes, error */
uptr->fileref = sim_fopen (cptr, "wb+"); /* open new file */ uptr->fileref = sim_fopen (cptr, "wb+");/* open new file */
if (uptr->fileref == NULL) /* open fail? */ if (uptr->fileref == NULL) /* open fail? */
return attach_err (uptr, SCPE_OPENERR); /* yes, error */ return attach_err (uptr, SCPE_OPENERR); /* yes, error */
if (!sim_quiet) printf ("%s: creating new file\n", sim_dname (dptr)); if (!sim_quiet)
} printf ("%s: creating new file\n", sim_dname (dptr));
} /* end if null */ }
} /* end else */ } /* end if null */
} /* end else */
}
if (uptr->flags & UNIT_BUFABLE) { /* buffer? */ if (uptr->flags & UNIT_BUFABLE) { /* buffer? */
uint32 cap = ((uint32) uptr->capac) / dptr->aincr; /* effective size */ uint32 cap = ((uint32) uptr->capac) / dptr->aincr; /* effective size */
if (uptr->flags & UNIT_MUSTBUF) /* dyn alloc? */ if (uptr->flags & UNIT_MUSTBUF) /* dyn alloc? */