/*
* Save the contents of the buffer argument into its associated file. Do
* nothing if there have been no changes (is this a bug, or a feature?).
* Error if there is no remembered file name. If this is the first write
* since the read or visit, then a backup copy of the file is made.
* Allow user to select whether or not to make backup files by looking at
* the value of makebackup.
*/
int
buffsave(struct buffer *bp)
{
int s;
FILE *ffp;
/* return, no changes */
if ((bp->b_flag & BFCHG) == 0) {
ewprintf("(No changes need to be saved)");
return (TRUE);
}
/* must have a name */
if (bp->b_fname[0] == '\0') {
dobeep();
ewprintf("No file name");
return (FALSE);
}
/* Ensure file has not been modified elsewhere */
/* We don't use the ignore flag here */
if (fchecktime(bp) != TRUE) {
if ((s = eyesno("File has changed on disk since last save. "
"Save anyway")) != TRUE)
return (s);
}
if (makebackup && (bp->b_flag & BFBAK)) {
s = fbackupfile(bp->b_fname);
/* hard error */
if (s == ABORT)
return (FALSE);
/* softer error */
if (s == FALSE &&
(s = eyesno("Backup error, save anyway")) != TRUE)
return (s);
}
if ((s = writeout(&ffp, bp, bp->b_fname)) == TRUE) {
(void)fupdstat(bp);
bp->b_flag &= ~(BFCHG | BFBAK);
upmodes(bp);
undo_add_boundary(FFRAND, 1);
undo_add_modified();
}
return (s);
}
/* ARGSUSED */
int
quit(int f, int n)
{
int s;
if ((s = anycb(FALSE)) == ABORT)
return (ABORT);
if (s == FALSE
|| eyesno("Modified buffers exist; really exit") == TRUE) {
vttidy();
closetags();
exit(GOOD);
}
return (TRUE);
}
/* ARGSUSED */
int
quit(int f, int n)
{
int s;
if ((s = anycb(FALSE)) == ABORT)
return (ABORT);
if (s == FIOERR || s == UERROR)
return (FALSE);
if (s == FALSE
|| eyesno("Modified buffers exist; really exit") == TRUE) {
vttidy();
exit(0);
}
return (TRUE);
}
/* ARGSUSED */
int
quit(int f, int n)
{
int s;
if ((s = anycb(FALSE)) == ABORT)
return (ABORT);
if (s == FALSE
|| eyesno("Modified buffers exist; really exit") == TRUE) {
vttidy();
#ifdef SYSCLEANUP
SYSCLEANUP;
#endif /* SYSCLEANUP */
exit(GOOD);
}
return (TRUE);
}
/*
* This routine blows away all of the text
* in a buffer. If the buffer is marked as changed
* then we ask if it is ok to blow it away; this is
* to save the user the grief of losing text. The
* window chain is nearly always wrong if this gets
* called; the caller must arrange for the updates
* that are required. Return TRUE if everything
* looks good.
*/
int
bclear(struct buffer *bp)
{
struct line *lp;
int s;
/* Has buffer changed, and do we care? */
if (!(bp->b_flag & BFIGNDIRTY) && (bp->b_flag & BFCHG) != 0 &&
(s = eyesno("Buffer modified; kill anyway")) != TRUE)
return (s);
bp->b_flag &= ~BFCHG; /* Not changed */
while ((lp = lforw(bp->b_headp)) != bp->b_headp)
lfree(lp);
bp->b_dotp = bp->b_headp; /* Fix dot */
bp->b_doto = 0;
bp->b_markp = NULL; /* Invalidate "mark" */
bp->b_marko = 0;
bp->b_dotline = bp->b_markline = 1;
bp->b_lines = 1;
return (TRUE);
}