Annotation of src/usr.bin/mg/file.c, Revision 1.56
1.56 ! kjell 1: /* $OpenBSD: file.c,v 1.55 2006/05/28 23:30:16 kjell Exp $ */
1.37 kjell 2:
3: /* This file is in the public domain. */
1.5 niklas 4:
1.1 deraadt 5: /*
1.4 millert 6: * File commands.
1.1 deraadt 7: */
8:
1.54 kjell 9: #include <libgen.h>
10:
1.41 kjell 11: #include "def.h"
12:
1.1 deraadt 13: /*
1.4 millert 14: * Insert a file into the current buffer. Real easy - just call the
1.1 deraadt 15: * insertfile routine with the file name.
16: */
1.3 millert 17: /* ARGSUSED */
18: int
1.15 vincent 19: fileinsert(int f, int n)
1.1 deraadt 20: {
1.29 vincent 21: char fname[NFILEN], *bufp, *adjf;
1.1 deraadt 22:
1.54 kjell 23: if (getbufcwd(fname, sizeof(fname)) != TRUE)
24: fname[0] = '\0';
25: bufp = eread("Insert file: ", fname, NFILEN,
26: EFNEW | EFCR | EFFILE | EFDEF);
1.29 vincent 27: if (bufp == NULL)
1.32 db 28: return (ABORT);
1.29 vincent 29: else if (bufp[0] == '\0')
1.32 db 30: return (FALSE);
1.29 vincent 31: adjf = adjustname(bufp);
1.22 vincent 32: if (adjf == NULL)
33: return (FALSE);
1.32 db 34: return (insertfile(adjf, NULL, FALSE));
1.1 deraadt 35: }
36:
37: /*
1.9 mickey 38: * Select a file for editing. Look around to see if you can find the file
1.4 millert 39: * in another buffer; if you can find it, just switch to the buffer. If
1.9 mickey 40: * you cannot find the file, create a new buffer, read in the text, and
1.4 millert 41: * switch to the new buffer.
1.1 deraadt 42: */
1.3 millert 43: /* ARGSUSED */
44: int
1.15 vincent 45: filevisit(int f, int n)
1.1 deraadt 46: {
1.45 deraadt 47: struct buffer *bp;
1.54 kjell 48: char fname[NFILEN], *bufp, *adjf;
1.39 kjell 49: int status;
1.34 cloder 50:
1.54 kjell 51: if (getbufcwd(fname, sizeof(fname)) != TRUE)
1.34 cloder 52: fname[0] = '\0';
1.38 kjell 53: bufp = eread("Find file: ", fname, NFILEN,
54: EFNEW | EFCR | EFFILE | EFDEF);
1.29 vincent 55: if (bufp == NULL)
1.32 db 56: return (ABORT);
1.29 vincent 57: else if (bufp[0] == '\0')
1.32 db 58: return (FALSE);
1.1 deraadt 59: adjf = adjustname(fname);
1.22 vincent 60: if (adjf == NULL)
61: return (FALSE);
1.3 millert 62: if ((bp = findbuffer(adjf)) == NULL)
1.32 db 63: return (FALSE);
1.1 deraadt 64: curbp = bp;
1.55 kjell 65: if (showbuffer(bp, curwp, WFFULL) != TRUE)
1.32 db 66: return (FALSE);
1.39 kjell 67: if (bp->b_fname[0] == '\0') {
1.30 jfb 68: if ((status = readin(adjf)) != TRUE)
69: killbuffer(bp);
1.32 db 70: return (status);
1.30 jfb 71: }
1.32 db 72: return (TRUE);
1.35 jason 73: }
74:
1.36 kjell 75: /*
76: * Replace the current file with an alternate one. Semantics for finding
77: * the replacement file are the same as 'filevisit', except the current
78: * buffer is killed before the switch. If the kill fails, or is aborted,
79: * revert to the original file.
80: */
1.43 kjell 81: /* ARGSUSED */
1.35 jason 82: int
83: filevisitalt(int f, int n)
84: {
1.45 deraadt 85: struct buffer *bp;
1.54 kjell 86: char fname[NFILEN], *bufp, *adjf;
1.36 kjell 87: int status;
88:
1.54 kjell 89: if (getbufcwd(fname, sizeof(fname)) != TRUE)
1.36 kjell 90: fname[0] = '\0';
91: bufp = eread("Find alternate file: ", fname, NFILEN,
92: EFNEW | EFCR | EFFILE | EFDEF);
93: if (bufp == NULL)
1.35 jason 94: return (ABORT);
1.36 kjell 95: else if (bufp[0] == '\0')
96: return (FALSE);
97:
98: status = killbuffer(curbp);
99: if (status == ABORT || status == FALSE)
100: return (ABORT);
101:
102: adjf = adjustname(fname);
103: if (adjf == NULL)
104: return (FALSE);
105: if ((bp = findbuffer(adjf)) == NULL)
106: return (FALSE);
107: curbp = bp;
1.55 kjell 108: if (showbuffer(bp, curwp, WFFULL) != TRUE)
1.36 kjell 109: return (FALSE);
110: if (bp->b_fname[0] == '\0') {
111: if ((status = readin(adjf)) != TRUE)
112: killbuffer(bp);
113: return (status);
114: }
115: return (TRUE);
1.1 deraadt 116: }
117:
1.17 vincent 118: int
119: filevisitro(int f, int n)
120: {
121: int error;
122:
123: error = filevisit(f, n);
124: if (error != TRUE)
125: return (error);
126: curbp->b_flag |= BFREADONLY;
127: return (TRUE);
128: }
1.32 db 129:
1.1 deraadt 130: /*
1.4 millert 131: * Pop to a file in the other window. Same as the last function, but uses
1.1 deraadt 132: * popbuf instead of showbuffer.
133: */
1.3 millert 134: /* ARGSUSED */
135: int
1.15 vincent 136: poptofile(int f, int n)
1.1 deraadt 137: {
1.45 deraadt 138: struct buffer *bp;
139: struct mgwin *wp;
1.29 vincent 140: char fname[NFILEN], *adjf, *bufp;
1.39 kjell 141: int status;
1.1 deraadt 142:
1.54 kjell 143: if (getbufcwd(fname, sizeof(fname)) != TRUE)
144: fname[0] = '\0';
1.29 vincent 145: if ((bufp = eread("Find file in other window: ", fname, NFILEN,
1.54 kjell 146: EFNEW | EFCR | EFFILE | EFDEF)) == NULL)
1.32 db 147: return (ABORT);
1.29 vincent 148: else if (bufp[0] == '\0')
1.32 db 149: return (FALSE);
1.1 deraadt 150: adjf = adjustname(fname);
1.22 vincent 151: if (adjf == NULL)
152: return (FALSE);
1.3 millert 153: if ((bp = findbuffer(adjf)) == NULL)
1.32 db 154: return (FALSE);
1.56 ! kjell 155: if (bp == curbp)
! 156: return (splitwind(f, n));
1.3 millert 157: if ((wp = popbuf(bp)) == NULL)
1.32 db 158: return (FALSE);
1.1 deraadt 159: curbp = bp;
160: curwp = wp;
1.39 kjell 161: if (bp->b_fname[0] == '\0') {
1.30 jfb 162: if ((status = readin(adjf)) != TRUE)
163: killbuffer(bp);
1.32 db 164: return (status);
1.30 jfb 165: }
1.32 db 166: return (TRUE);
1.1 deraadt 167: }
168:
169: /*
1.32 db 170: * Given a file name, either find the buffer it uses, or create a new
1.1 deraadt 171: * empty buffer to put it in.
172: */
1.45 deraadt 173: struct buffer *
1.44 kjell 174: findbuffer(char *fn)
1.1 deraadt 175: {
1.52 deraadt 176: struct buffer *bp;
177: char bname[NBUFN], fname[NBUFN];
1.1 deraadt 178:
1.44 kjell 179: if (strlcpy(fname, fn, sizeof(fname)) >= sizeof(fname)) {
180: ewprintf("filename too long");
181: return (NULL);
182: }
183:
1.3 millert 184: for (bp = bheadp; bp != NULL; bp = bp->b_bufp) {
1.6 art 185: if (strcmp(bp->b_fname, fname) == 0)
1.32 db 186: return (bp);
1.1 deraadt 187: }
1.53 kjell 188: /* Not found. Create a new one, adjusting name first */
1.54 kjell 189: if (augbname(bname, fname, sizeof(bname)) == FALSE)
1.44 kjell 190: return (NULL);
1.10 vincent 191:
1.53 kjell 192: bp = bfind(bname, TRUE);
193: return (bp);
1.1 deraadt 194: }
195:
196: /*
1.9 mickey 197: * Read the file "fname" into the current buffer. Make all of the text
198: * in the buffer go away, after checking for unsaved changes. This is
199: * called by the "read" command, the "visit" command, and the mainline
1.19 vincent 200: * (for "mg file").
1.1 deraadt 201: */
1.3 millert 202: int
1.19 vincent 203: readin(char *fname)
1.3 millert 204: {
1.45 deraadt 205: struct mgwin *wp;
1.41 kjell 206: int status, i, ro = FALSE;
1.20 vincent 207: PF *ael;
1.1 deraadt 208:
1.4 millert 209: /* might be old */
210: if (bclear(curbp) != TRUE)
1.32 db 211: return (TRUE);
1.30 jfb 212: if ((status = insertfile(fname, fname, TRUE)) != TRUE) {
213: ewprintf("File is not readable: %s", fname);
1.32 db 214: return (FALSE);
1.30 jfb 215: }
1.18 vincent 216:
217: /*
218: * Call auto-executing function if we need to.
219: */
220: if ((ael = find_autoexec(fname)) != NULL) {
221: for (i = 0; ael[i] != NULL; i++)
222: (*ael[i])(0, 1);
223: free(ael);
224: }
1.4 millert 225:
226: /* no change */
227: curbp->b_flag &= ~BFCHG;
1.3 millert 228: for (wp = wheadp; wp != NULL; wp = wp->w_wndp) {
1.1 deraadt 229: if (wp->w_bufp == curbp) {
1.3 millert 230: wp->w_dotp = wp->w_linep = lforw(curbp->b_linep);
231: wp->w_doto = 0;
1.1 deraadt 232: wp->w_markp = NULL;
233: wp->w_marko = 0;
234: }
235: }
1.16 vincent 236:
1.41 kjell 237: /*
238: * We need to set the READONLY flag after we insert the file,
239: * unless the file is a directory.
240: */
1.16 vincent 241: if (access(fname, W_OK) && errno != ENOENT)
1.41 kjell 242: ro = TRUE;
243: if (fisdir(fname) == TRUE)
244: ro = TRUE;
245: if (ro == TRUE)
1.16 vincent 246: curbp->b_flag |= BFREADONLY;
247: else
248: curbp->b_flag &=~ BFREADONLY;
1.25 deraadt 249:
1.24 deraadt 250: if (startrow)
251: gotoline(FFARG, startrow);
1.16 vincent 252:
1.32 db 253: return (status);
1.1 deraadt 254: }
1.4 millert 255:
1.1 deraadt 256: /*
257: * NB, getting file attributes is done here under control of a flag
258: * rather than in readin, which would be cleaner. I was concerned
259: * that some operating system might require the file to be open
260: * in order to get the information. Similarly for writing.
261: */
262:
263: /*
1.39 kjell 264: * Insert a file in the current buffer, after dot. If file is a directory,
265: * and 'replacebuf' is TRUE, invoke dired mode, else die with an error.
266: * If file is a regular file, set mark at the end of the text inserted;
1.47 kjell 267: * point at the beginning. Return a standard status. Print a summary
268: * (lines read, error message) out as well. This routine also does the
269: * read end of backup processing. The BFBAK flag, if set in a buffer,
270: * says that a backup should be taken. It is set when a file is read in,
271: * but not on a new file. You don't need to make a backup copy of nothing.
1.1 deraadt 272: */
1.47 kjell 273:
1.9 mickey 274: static char *line = NULL;
275: static int linesize = 0;
1.1 deraadt 276:
1.3 millert 277: int
1.39 kjell 278: insertfile(char *fname, char *newname, int replacebuf)
1.3 millert 279: {
1.45 deraadt 280: struct buffer *bp;
281: struct line *lp1, *lp2;
282: struct line *olp; /* line we started at */
283: struct mgwin *wp;
1.23 vincent 284: int nbytes, s, nline, siz, x = -1, x2;
1.19 vincent 285: int opos; /* offset we started at */
1.4 millert 286:
1.39 kjell 287: if (replacebuf == TRUE)
1.23 vincent 288: x = undo_enable(FALSE);
289:
1.4 millert 290: lp1 = NULL;
1.1 deraadt 291: if (line == NULL) {
292: line = malloc(NLINE);
1.21 vincent 293: if (line == NULL)
294: panic("out of memory");
1.1 deraadt 295: linesize = NLINE;
296: }
1.4 millert 297:
298: /* cheap */
299: bp = curbp;
1.54 kjell 300: if (newname != NULL) {
301: (void)strlcpy(bp->b_fname, newname, sizeof(bp->b_fname));
302: (void)strlcpy(bp->b_cwd, dirname(newname),
303: sizeof(bp->b_cwd));
304: (void)strlcat(bp->b_cwd, "/", sizeof(bp->b_cwd));
305: }
1.4 millert 306:
307: /* hard file open */
1.39 kjell 308: if ((s = ffropen(fname, (replacebuf == TRUE) ? bp : NULL)) == FIOERR)
1.1 deraadt 309: goto out;
1.4 millert 310: if (s == FIOFNF) {
311: /* file not found */
1.1 deraadt 312: if (newname != NULL)
313: ewprintf("(New file)");
1.3 millert 314: else
315: ewprintf("(File not found)");
1.1 deraadt 316: goto out;
1.40 kjell 317: } else if (s == FIODIR) {
318: /* file was a directory */
319: if (replacebuf == FALSE) {
320: ewprintf("Cannot insert: file is a directory, %s",
321: fname);
322: goto cleanup;
323: }
324: killbuffer(bp);
325: if ((bp = dired_(fname)) == NULL)
326: return (FALSE);
327: undo_enable(x);
328: curbp = bp;
1.55 kjell 329: return (showbuffer(bp, curwp, WFFULL | WFMODE));
1.54 kjell 330: } else {
331: (void)strlcpy(bp->b_cwd, dirname(fname), sizeof(bp->b_cwd));
332: (void)strlcat(bp->b_cwd, "/", sizeof(bp->b_cwd));
1.1 deraadt 333: }
334: opos = curwp->w_doto;
1.4 millert 335:
336: /* open a new line, at point, and start inserting after it */
1.23 vincent 337: x2 = undo_enable(FALSE);
1.20 vincent 338: (void)lnewline();
1.1 deraadt 339: olp = lback(curwp->w_dotp);
1.3 millert 340: if (olp == curbp->b_linep) {
1.1 deraadt 341: /* if at end of buffer, create a line to insert before */
1.7 art 342: (void)lnewline();
1.1 deraadt 343: curwp->w_dotp = lback(curwp->w_dotp);
344: }
1.23 vincent 345: undo_enable(x2);
1.4 millert 346:
347: /* don't count fake lines at the end */
348: nline = 0;
1.19 vincent 349: siz = 0;
1.3 millert 350: while ((s = ffgetline(line, linesize, &nbytes)) != FIOERR) {
1.1 deraadt 351: doneread:
1.19 vincent 352: siz += nbytes + 1;
1.3 millert 353: switch (s) {
354: case FIOSUC:
355: ++nline;
1.48 kjell 356: /* FALLTHRU */
1.4 millert 357: case FIOEOF:
358: /* the last line of the file */
1.3 millert 359: if ((lp1 = lalloc(nbytes)) == NULL) {
1.4 millert 360: /* keep message on the display */
361: s = FIOERR;
362: goto endoffile;
1.3 millert 363: }
364: bcopy(line, <ext(lp1)[0], nbytes);
365: lp2 = lback(curwp->w_dotp);
366: lp2->l_fp = lp1;
367: lp1->l_fp = curwp->w_dotp;
368: lp1->l_bp = lp2;
369: curwp->w_dotp->l_bp = lp1;
370: if (s == FIOEOF)
371: goto endoffile;
372: break;
1.19 vincent 373: case FIOLONG: {
1.4 millert 374: /* a line too long to fit in our buffer */
1.9 mickey 375: char *cp;
376: int newsize;
1.3 millert 377:
378: newsize = linesize * 2;
379: if (newsize < 0 ||
1.51 deraadt 380: (cp = malloc(newsize)) == NULL) {
1.3 millert 381: ewprintf("Could not allocate %d bytes",
1.4 millert 382: newsize);
383: s = FIOERR;
384: goto endoffile;
1.3 millert 385: }
386: bcopy(line, cp, linesize);
387: free(line);
388: line = cp;
1.9 mickey 389: s = ffgetline(line + linesize, linesize,
1.4 millert 390: &nbytes);
1.3 millert 391: nbytes += linesize;
392: linesize = newsize;
393: if (s == FIOERR)
394: goto endoffile;
395: goto doneread;
396: }
397: default:
398: ewprintf("Unknown code %d reading file", s);
399: s = FIOERR;
400: break;
1.1 deraadt 401: }
402: }
403: endoffile:
1.28 vincent 404: undo_add_insert(olp, opos, siz-1);
1.19 vincent 405:
1.4 millert 406: /* ignore errors */
1.8 art 407: ffclose(NULL);
1.4 millert 408: /* don't zap an error */
409: if (s == FIOEOF) {
1.3 millert 410: if (nline == 1)
411: ewprintf("(Read 1 line)");
412: else
413: ewprintf("(Read %d lines)", nline);
1.1 deraadt 414: }
1.4 millert 415: /* set mark at the end of the text */
1.1 deraadt 416: curwp->w_dotp = curwp->w_markp = lback(curwp->w_dotp);
417: curwp->w_marko = llength(curwp->w_markp);
1.7 art 418: (void)ldelnewline();
1.1 deraadt 419: curwp->w_dotp = olp;
420: curwp->w_doto = opos;
1.3 millert 421: if (olp == curbp->b_linep)
422: curwp->w_dotp = lforw(olp);
1.1 deraadt 423: if (newname != NULL)
1.3 millert 424: bp->b_flag |= BFCHG | BFBAK; /* Need a backup. */
425: else
426: bp->b_flag |= BFCHG;
427: /*
1.32 db 428: * If the insert was at the end of buffer, set lp1 to the end of
1.3 millert 429: * buffer line, and lp2 to the beginning of the newly inserted text.
430: * (Otherwise lp2 is set to NULL.) This is used below to set
431: * pointers in other windows correctly if they are also at the end of
432: * buffer.
1.1 deraadt 433: */
434: lp1 = bp->b_linep;
435: if (curwp->w_markp == lp1) {
436: lp2 = curwp->w_dotp;
437: } else {
1.4 millert 438: /* delete extraneous newline */
1.7 art 439: (void)ldelnewline();
1.1 deraadt 440: out: lp2 = NULL;
441: }
1.3 millert 442: for (wp = wheadp; wp != NULL; wp = wp->w_wndp) {
1.1 deraadt 443: if (wp->w_bufp == curbp) {
1.3 millert 444: wp->w_flag |= WFMODE | WFEDIT;
1.1 deraadt 445: if (wp != curwp && lp2 != NULL) {
1.3 millert 446: if (wp->w_dotp == lp1)
447: wp->w_dotp = lp2;
448: if (wp->w_markp == lp1)
449: wp->w_markp = lp2;
450: if (wp->w_linep == lp1)
451: wp->w_linep = lp2;
1.1 deraadt 452: }
453: }
454: }
1.40 kjell 455: cleanup:
1.39 kjell 456: undo_enable(x);
1.23 vincent 457:
1.39 kjell 458: /* return FALSE if error */
1.32 db 459: return (s != FIOERR);
1.1 deraadt 460: }
461:
462: /*
1.9 mickey 463: * Ask for a file name and write the contents of the current buffer to that
464: * file. Update the remembered file name and clear the buffer changed flag.
1.4 millert 465: * This handling of file names is different from the earlier versions and
1.27 jmc 466: * is more compatible with Gosling EMACS than with ITS EMACS.
1.1 deraadt 467: */
1.3 millert 468: /* ARGSUSED */
469: int
1.20 vincent 470: filewrite(int f, int n)
1.1 deraadt 471: {
1.4 millert 472: int s;
1.53 kjell 473: char fname[NFILEN], bn[NBUFN];
474: char *adjfname, *bufp;
1.29 vincent 475:
1.54 kjell 476: if (getbufcwd(fname, sizeof(fname)) != TRUE)
477: fname[0] = '\0';
1.29 vincent 478: if ((bufp = eread("Write file: ", fname, NFILEN,
1.54 kjell 479: EFDEF | EFNEW | EFCR | EFFILE)) == NULL)
1.32 db 480: return (ABORT);
1.29 vincent 481: else if (bufp[0] == '\0')
1.32 db 482: return (FALSE);
1.1 deraadt 483:
484: adjfname = adjustname(fname);
1.22 vincent 485: if (adjfname == NULL)
486: return (FALSE);
1.1 deraadt 487: /* old attributes are no longer current */
488: bzero(&curbp->b_fi, sizeof(curbp->b_fi));
1.3 millert 489: if ((s = writeout(curbp, adjfname)) == TRUE) {
1.53 kjell 490: (void)strlcpy(curbp->b_fname, adjfname, sizeof(curbp->b_fname));
1.54 kjell 491: if (getbufcwd(curbp->b_cwd, sizeof(curbp->b_cwd)) != TRUE)
492: (void)strlcpy(curbp->b_cwd, "/", sizeof(curbp->b_cwd));
1.50 kjell 493: free(curbp->b_bname);
1.54 kjell 494: if (augbname(bn, basename(curbp->b_fname), sizeof(bn))
1.53 kjell 495: == FALSE)
496: return (FALSE);
497: if ((curbp->b_bname = strdup(bn)) == NULL)
498: return (FALSE);
1.1 deraadt 499: curbp->b_flag &= ~(BFBAK | BFCHG);
500: upmodes(curbp);
501: }
1.32 db 502: return (s);
1.1 deraadt 503: }
504:
505: /*
1.4 millert 506: * Save the contents of the current buffer back into its associated file.
1.1 deraadt 507: */
508: #ifndef MAKEBACKUP
509: #define MAKEBACKUP TRUE
1.4 millert 510: #endif /* !MAKEBACKUP */
1.9 mickey 511: static int makebackup = MAKEBACKUP;
1.1 deraadt 512:
1.3 millert 513: /* ARGSUSED */
514: int
1.20 vincent 515: filesave(int f, int n)
1.1 deraadt 516: {
1.32 db 517: return (buffsave(curbp));
1.1 deraadt 518: }
519:
520: /*
1.9 mickey 521: * Save the contents of the buffer argument into its associated file. Do
522: * nothing if there have been no changes (is this a bug, or a feature?).
523: * Error if there is no remembered file name. If this is the first write
1.4 millert 524: * since the read or visit, then a backup copy of the file is made.
1.9 mickey 525: * Allow user to select whether or not to make backup files by looking at
1.4 millert 526: * the value of makebackup.
1.1 deraadt 527: */
1.3 millert 528: int
1.45 deraadt 529: buffsave(struct buffer *bp)
1.3 millert 530: {
1.4 millert 531: int s;
1.1 deraadt 532:
1.4 millert 533: /* return, no changes */
534: if ((bp->b_flag & BFCHG) == 0) {
1.1 deraadt 535: ewprintf("(No changes need to be saved)");
1.32 db 536: return (TRUE);
1.1 deraadt 537: }
1.4 millert 538:
539: /* must have a name */
540: if (bp->b_fname[0] == '\0') {
1.1 deraadt 541: ewprintf("No file name");
542: return (FALSE);
543: }
1.4 millert 544:
1.3 millert 545: if (makebackup && (bp->b_flag & BFBAK)) {
1.1 deraadt 546: s = fbackupfile(bp->b_fname);
1.4 millert 547: /* hard error */
548: if (s == ABORT)
1.32 db 549: return (FALSE);
1.4 millert 550: /* softer error */
1.9 mickey 551: if (s == FALSE &&
1.4 millert 552: (s = eyesno("Backup error, save anyway")) != TRUE)
1.32 db 553: return (s);
1.1 deraadt 554: }
1.3 millert 555: if ((s = writeout(bp, bp->b_fname)) == TRUE) {
1.1 deraadt 556: bp->b_flag &= ~(BFCHG | BFBAK);
557: upmodes(bp);
558: }
1.32 db 559: return (s);
1.1 deraadt 560: }
561:
1.3 millert 562: /*
563: * Since we don't have variables (we probably should) this is a command
564: * processor for changing the value of the make backup flag. If no argument
565: * is given, sets makebackup to true, so backups are made. If an argument is
566: * given, no backup files are made when saving a new version of a file. Only
567: * used when BACKUP is #defined.
1.1 deraadt 568: */
1.3 millert 569: /* ARGSUSED */
570: int
1.20 vincent 571: makebkfile(int f, int n)
1.1 deraadt 572: {
1.3 millert 573: if (f & FFARG)
574: makebackup = n > 0;
575: else
576: makebackup = !makebackup;
1.1 deraadt 577: ewprintf("Backup files %sabled", makebackup ? "en" : "dis");
1.32 db 578: return (TRUE);
1.1 deraadt 579: }
580:
581: /*
582: * NB: bp is passed to both ffwopen and ffclose because some
583: * attribute information may need to be updated at open time
584: * and others after the close. This is OS-dependent. Note
585: * that the ff routines are assumed to be able to tell whether
586: * the attribute information has been set up in this buffer
587: * or not.
588: */
589:
590: /*
1.9 mickey 591: * This function performs the details of file writing; writing the file
592: * in buffer bp to file fn. Uses the file management routines in the
1.4 millert 593: * "fileio.c" package. Most of the grief is checking of some sort.
1.1 deraadt 594: */
1.3 millert 595: int
1.45 deraadt 596: writeout(struct buffer *bp, char *fn)
1.3 millert 597: {
1.4 millert 598: int s;
1.1 deraadt 599:
1.4 millert 600: /* open writes message */
601: if ((s = ffwopen(fn, bp)) != FIOSUC)
1.1 deraadt 602: return (FALSE);
603: s = ffputbuf(bp);
1.4 millert 604: if (s == FIOSUC) {
605: /* no write error */
1.1 deraadt 606: s = ffclose(bp);
1.3 millert 607: if (s == FIOSUC)
1.1 deraadt 608: ewprintf("Wrote %s", fn);
1.4 millert 609: } else
610: /* ignore close error if it is a write error */
1.7 art 611: (void)ffclose(bp);
1.32 db 612: return (s == FIOSUC);
1.1 deraadt 613: }
614:
615: /*
1.4 millert 616: * Tag all windows for bp (all windows if bp == NULL) as needing their
1.1 deraadt 617: * mode line updated.
618: */
1.7 art 619: void
1.45 deraadt 620: upmodes(struct buffer *bp)
1.3 millert 621: {
1.45 deraadt 622: struct mgwin *wp;
1.1 deraadt 623:
624: for (wp = wheadp; wp != NULL; wp = wp->w_wndp)
1.3 millert 625: if (bp == NULL || curwp->w_bufp == bp)
626: wp->w_flag |= WFMODE;
1.1 deraadt 627: }