Annotation of src/usr.bin/mg/file.c, Revision 1.52
1.52 ! deraadt 1: /* $OpenBSD: file.c,v 1.51 2006/04/03 00:40:56 deraadt 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:
1.41 kjell 9: #include "def.h"
10:
1.6 art 11: #include <libgen.h>
1.4 millert 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:
1.29 vincent 23: bufp = eread("Insert file: ", fname, NFILEN, EFNEW | EFCR | EFFILE);
24: if (bufp == NULL)
1.32 db 25: return (ABORT);
1.29 vincent 26: else if (bufp[0] == '\0')
1.32 db 27: return (FALSE);
1.29 vincent 28: adjf = adjustname(bufp);
1.22 vincent 29: if (adjf == NULL)
30: return (FALSE);
1.32 db 31: return (insertfile(adjf, NULL, FALSE));
1.1 deraadt 32: }
33:
34: /*
1.9 mickey 35: * Select a file for editing. Look around to see if you can find the file
1.4 millert 36: * in another buffer; if you can find it, just switch to the buffer. If
1.9 mickey 37: * you cannot find the file, create a new buffer, read in the text, and
1.4 millert 38: * switch to the new buffer.
1.1 deraadt 39: */
1.3 millert 40: /* ARGSUSED */
41: int
1.15 vincent 42: filevisit(int f, int n)
1.1 deraadt 43: {
1.45 deraadt 44: struct buffer *bp;
1.34 cloder 45: char fname[NFILEN], *bufp, *adjf, *slash;
1.39 kjell 46: int status;
1.34 cloder 47:
48: if (curbp->b_fname && curbp->b_fname[0] != '\0') {
1.49 kjell 49: if (strlcpy(fname, curbp->b_fname, sizeof(fname)) >= sizeof(fname))
50: return (FALSE);
1.34 cloder 51: if ((slash = strrchr(fname, '/')) != NULL) {
52: *(slash + 1) = '\0';
53: }
54: }
55: else
56: fname[0] = '\0';
1.1 deraadt 57:
1.38 kjell 58: bufp = eread("Find file: ", fname, NFILEN,
59: EFNEW | EFCR | EFFILE | EFDEF);
1.29 vincent 60: if (bufp == NULL)
1.32 db 61: return (ABORT);
1.29 vincent 62: else if (bufp[0] == '\0')
1.32 db 63: return (FALSE);
1.1 deraadt 64: adjf = adjustname(fname);
1.22 vincent 65: if (adjf == NULL)
66: return (FALSE);
1.3 millert 67: if ((bp = findbuffer(adjf)) == NULL)
1.32 db 68: return (FALSE);
1.1 deraadt 69: curbp = bp;
1.3 millert 70: if (showbuffer(bp, curwp, WFHARD) != TRUE)
1.32 db 71: return (FALSE);
1.39 kjell 72: if (bp->b_fname[0] == '\0') {
1.30 jfb 73: if ((status = readin(adjf)) != TRUE)
74: killbuffer(bp);
1.32 db 75: return (status);
1.30 jfb 76: }
1.32 db 77: return (TRUE);
1.35 jason 78: }
79:
1.36 kjell 80: /*
81: * Replace the current file with an alternate one. Semantics for finding
82: * the replacement file are the same as 'filevisit', except the current
83: * buffer is killed before the switch. If the kill fails, or is aborted,
84: * revert to the original file.
85: */
1.43 kjell 86: /* ARGSUSED */
1.35 jason 87: int
88: filevisitalt(int f, int n)
89: {
1.45 deraadt 90: struct buffer *bp;
1.36 kjell 91: char fname[NFILEN], *bufp, *adjf, *slash;
92: int status;
93:
94: if (curbp->b_fname && curbp->b_fname[0] != '\0') {
1.49 kjell 95: if (strlcpy(fname, curbp->b_fname, sizeof(fname)) >= sizeof(fname))
96: return (FALSE);
1.36 kjell 97: if ((slash = strrchr(fname, '/')) != NULL) {
98: *(slash + 1) = '\0';
99: }
100: } else
101: fname[0] = '\0';
102:
103: bufp = eread("Find alternate file: ", fname, NFILEN,
104: EFNEW | EFCR | EFFILE | EFDEF);
105: if (bufp == NULL)
1.35 jason 106: return (ABORT);
1.36 kjell 107: else if (bufp[0] == '\0')
108: return (FALSE);
109:
110: status = killbuffer(curbp);
111: if (status == ABORT || status == FALSE)
112: return (ABORT);
113:
114: adjf = adjustname(fname);
115: if (adjf == NULL)
116: return (FALSE);
117: if ((bp = findbuffer(adjf)) == NULL)
118: return (FALSE);
119: curbp = bp;
120: if (showbuffer(bp, curwp, WFHARD) != TRUE)
121: return (FALSE);
122: if (bp->b_fname[0] == '\0') {
123: if ((status = readin(adjf)) != TRUE)
124: killbuffer(bp);
125: return (status);
126: }
127: return (TRUE);
1.1 deraadt 128: }
129:
1.17 vincent 130: int
131: filevisitro(int f, int n)
132: {
133: int error;
134:
135: error = filevisit(f, n);
136: if (error != TRUE)
137: return (error);
138: curbp->b_flag |= BFREADONLY;
139: return (TRUE);
140: }
1.32 db 141:
1.1 deraadt 142: /*
1.4 millert 143: * Pop to a file in the other window. Same as the last function, but uses
1.1 deraadt 144: * popbuf instead of showbuffer.
145: */
1.3 millert 146: /* ARGSUSED */
147: int
1.15 vincent 148: poptofile(int f, int n)
1.1 deraadt 149: {
1.45 deraadt 150: struct buffer *bp;
151: struct mgwin *wp;
1.29 vincent 152: char fname[NFILEN], *adjf, *bufp;
1.39 kjell 153: int status;
1.1 deraadt 154:
1.29 vincent 155: if ((bufp = eread("Find file in other window: ", fname, NFILEN,
156: EFNEW | EFCR | EFFILE)) == NULL)
1.32 db 157: return (ABORT);
1.29 vincent 158: else if (bufp[0] == '\0')
1.32 db 159: return (FALSE);
1.1 deraadt 160: adjf = adjustname(fname);
1.22 vincent 161: if (adjf == NULL)
162: return (FALSE);
1.3 millert 163: if ((bp = findbuffer(adjf)) == NULL)
1.32 db 164: return (FALSE);
1.3 millert 165: if ((wp = popbuf(bp)) == NULL)
1.32 db 166: return (FALSE);
1.1 deraadt 167: curbp = bp;
168: curwp = wp;
1.39 kjell 169: if (bp->b_fname[0] == '\0') {
1.30 jfb 170: if ((status = readin(adjf)) != TRUE)
171: killbuffer(bp);
1.32 db 172: return (status);
1.30 jfb 173: }
1.32 db 174: return (TRUE);
1.1 deraadt 175: }
176:
177: /*
1.32 db 178: * Given a file name, either find the buffer it uses, or create a new
1.1 deraadt 179: * empty buffer to put it in.
180: */
1.45 deraadt 181: struct buffer *
1.44 kjell 182: findbuffer(char *fn)
1.1 deraadt 183: {
1.52 ! deraadt 184: struct buffer *bp;
! 185: char bname[NBUFN], fname[NBUFN];
! 186: unsigned int count;
! 187: size_t i, remain;
1.1 deraadt 188:
1.44 kjell 189: if (strlcpy(fname, fn, sizeof(fname)) >= sizeof(fname)) {
190: ewprintf("filename too long");
191: return (NULL);
192: }
193:
1.3 millert 194: for (bp = bheadp; bp != NULL; bp = bp->b_bufp) {
1.6 art 195: if (strcmp(bp->b_fname, fname) == 0)
1.32 db 196: return (bp);
1.1 deraadt 197: }
1.14 vincent 198: i = strlcpy(bname, basename(fname), sizeof(bname));
1.33 beck 199: if (i >= sizeof(bname))
1.44 kjell 200: return (NULL);
1.14 vincent 201: remain = sizeof(bname) - i;
202: for (count = 2; bfind(bname, FALSE) != NULL; count++)
203: snprintf(&bname[i], remain, "<%d>", count);
1.10 vincent 204:
1.32 db 205: return (bfind(bname, TRUE));
1.1 deraadt 206: }
207:
208: /*
1.9 mickey 209: * Read the file "fname" into the current buffer. Make all of the text
210: * in the buffer go away, after checking for unsaved changes. This is
211: * called by the "read" command, the "visit" command, and the mainline
1.19 vincent 212: * (for "mg file").
1.1 deraadt 213: */
1.3 millert 214: int
1.19 vincent 215: readin(char *fname)
1.3 millert 216: {
1.45 deraadt 217: struct mgwin *wp;
1.41 kjell 218: int status, i, ro = FALSE;
1.20 vincent 219: PF *ael;
1.1 deraadt 220:
1.4 millert 221: /* might be old */
222: if (bclear(curbp) != TRUE)
1.32 db 223: return (TRUE);
1.30 jfb 224: if ((status = insertfile(fname, fname, TRUE)) != TRUE) {
225: ewprintf("File is not readable: %s", fname);
1.32 db 226: return (FALSE);
1.30 jfb 227: }
1.18 vincent 228:
229: /*
230: * Call auto-executing function if we need to.
231: */
232: if ((ael = find_autoexec(fname)) != NULL) {
233: for (i = 0; ael[i] != NULL; i++)
234: (*ael[i])(0, 1);
235: free(ael);
236: }
1.4 millert 237:
238: /* no change */
239: curbp->b_flag &= ~BFCHG;
1.3 millert 240: for (wp = wheadp; wp != NULL; wp = wp->w_wndp) {
1.1 deraadt 241: if (wp->w_bufp == curbp) {
1.3 millert 242: wp->w_dotp = wp->w_linep = lforw(curbp->b_linep);
243: wp->w_doto = 0;
1.1 deraadt 244: wp->w_markp = NULL;
245: wp->w_marko = 0;
246: }
247: }
1.16 vincent 248:
1.41 kjell 249: /*
250: * We need to set the READONLY flag after we insert the file,
251: * unless the file is a directory.
252: */
1.16 vincent 253: if (access(fname, W_OK) && errno != ENOENT)
1.41 kjell 254: ro = TRUE;
255: if (fisdir(fname) == TRUE)
256: ro = TRUE;
257: if (ro == TRUE)
1.16 vincent 258: curbp->b_flag |= BFREADONLY;
259: else
260: curbp->b_flag &=~ BFREADONLY;
1.25 deraadt 261:
1.24 deraadt 262: if (startrow)
263: gotoline(FFARG, startrow);
1.16 vincent 264:
1.32 db 265: return (status);
1.1 deraadt 266: }
1.4 millert 267:
1.1 deraadt 268: /*
269: * NB, getting file attributes is done here under control of a flag
270: * rather than in readin, which would be cleaner. I was concerned
271: * that some operating system might require the file to be open
272: * in order to get the information. Similarly for writing.
273: */
274:
275: /*
1.39 kjell 276: * Insert a file in the current buffer, after dot. If file is a directory,
277: * and 'replacebuf' is TRUE, invoke dired mode, else die with an error.
278: * If file is a regular file, set mark at the end of the text inserted;
1.47 kjell 279: * point at the beginning. Return a standard status. Print a summary
280: * (lines read, error message) out as well. This routine also does the
281: * read end of backup processing. The BFBAK flag, if set in a buffer,
282: * says that a backup should be taken. It is set when a file is read in,
283: * but not on a new file. You don't need to make a backup copy of nothing.
1.1 deraadt 284: */
1.47 kjell 285:
1.9 mickey 286: static char *line = NULL;
287: static int linesize = 0;
1.1 deraadt 288:
1.3 millert 289: int
1.39 kjell 290: insertfile(char *fname, char *newname, int replacebuf)
1.3 millert 291: {
1.45 deraadt 292: struct buffer *bp;
293: struct line *lp1, *lp2;
294: struct line *olp; /* line we started at */
295: struct mgwin *wp;
1.23 vincent 296: int nbytes, s, nline, siz, x = -1, x2;
1.19 vincent 297: int opos; /* offset we started at */
1.4 millert 298:
1.39 kjell 299: if (replacebuf == TRUE)
1.23 vincent 300: x = undo_enable(FALSE);
301:
1.4 millert 302: lp1 = NULL;
1.1 deraadt 303: if (line == NULL) {
304: line = malloc(NLINE);
1.21 vincent 305: if (line == NULL)
306: panic("out of memory");
1.1 deraadt 307: linesize = NLINE;
308: }
1.4 millert 309:
310: /* cheap */
311: bp = curbp;
1.8 art 312: if (newname != NULL)
1.10 vincent 313: (void)strlcpy(bp->b_fname, newname, sizeof bp->b_fname);
1.4 millert 314:
315: /* hard file open */
1.39 kjell 316: if ((s = ffropen(fname, (replacebuf == TRUE) ? bp : NULL)) == FIOERR)
1.1 deraadt 317: goto out;
1.4 millert 318: if (s == FIOFNF) {
319: /* file not found */
1.1 deraadt 320: if (newname != NULL)
321: ewprintf("(New file)");
1.3 millert 322: else
323: ewprintf("(File not found)");
1.1 deraadt 324: goto out;
1.40 kjell 325: } else if (s == FIODIR) {
326: /* file was a directory */
327: if (replacebuf == FALSE) {
328: ewprintf("Cannot insert: file is a directory, %s",
329: fname);
330: goto cleanup;
331: }
332: killbuffer(bp);
333: if ((bp = dired_(fname)) == NULL)
334: return (FALSE);
335: undo_enable(x);
336: curbp = bp;
337: return (showbuffer(bp, curwp, WFHARD | WFMODE));
1.1 deraadt 338: }
339: opos = curwp->w_doto;
1.4 millert 340:
341: /* open a new line, at point, and start inserting after it */
1.23 vincent 342: x2 = undo_enable(FALSE);
1.20 vincent 343: (void)lnewline();
1.1 deraadt 344: olp = lback(curwp->w_dotp);
1.3 millert 345: if (olp == curbp->b_linep) {
1.1 deraadt 346: /* if at end of buffer, create a line to insert before */
1.7 art 347: (void)lnewline();
1.1 deraadt 348: curwp->w_dotp = lback(curwp->w_dotp);
349: }
1.23 vincent 350: undo_enable(x2);
1.4 millert 351:
352: /* don't count fake lines at the end */
353: nline = 0;
1.19 vincent 354: siz = 0;
1.3 millert 355: while ((s = ffgetline(line, linesize, &nbytes)) != FIOERR) {
1.1 deraadt 356: doneread:
1.19 vincent 357: siz += nbytes + 1;
1.3 millert 358: switch (s) {
359: case FIOSUC:
360: ++nline;
1.48 kjell 361: /* FALLTHRU */
1.4 millert 362: case FIOEOF:
363: /* the last line of the file */
1.3 millert 364: if ((lp1 = lalloc(nbytes)) == NULL) {
1.4 millert 365: /* keep message on the display */
366: s = FIOERR;
367: goto endoffile;
1.3 millert 368: }
369: bcopy(line, <ext(lp1)[0], nbytes);
370: lp2 = lback(curwp->w_dotp);
371: lp2->l_fp = lp1;
372: lp1->l_fp = curwp->w_dotp;
373: lp1->l_bp = lp2;
374: curwp->w_dotp->l_bp = lp1;
375: if (s == FIOEOF)
376: goto endoffile;
377: break;
1.19 vincent 378: case FIOLONG: {
1.4 millert 379: /* a line too long to fit in our buffer */
1.9 mickey 380: char *cp;
381: int newsize;
1.3 millert 382:
383: newsize = linesize * 2;
384: if (newsize < 0 ||
1.51 deraadt 385: (cp = malloc(newsize)) == NULL) {
1.3 millert 386: ewprintf("Could not allocate %d bytes",
1.4 millert 387: newsize);
388: s = FIOERR;
389: goto endoffile;
1.3 millert 390: }
391: bcopy(line, cp, linesize);
392: free(line);
393: line = cp;
1.9 mickey 394: s = ffgetline(line + linesize, linesize,
1.4 millert 395: &nbytes);
1.3 millert 396: nbytes += linesize;
397: linesize = newsize;
398: if (s == FIOERR)
399: goto endoffile;
400: goto doneread;
401: }
402: default:
403: ewprintf("Unknown code %d reading file", s);
404: s = FIOERR;
405: break;
1.1 deraadt 406: }
407: }
408: endoffile:
1.28 vincent 409: undo_add_insert(olp, opos, siz-1);
1.19 vincent 410:
1.4 millert 411: /* ignore errors */
1.8 art 412: ffclose(NULL);
1.4 millert 413: /* don't zap an error */
414: if (s == FIOEOF) {
1.3 millert 415: if (nline == 1)
416: ewprintf("(Read 1 line)");
417: else
418: ewprintf("(Read %d lines)", nline);
1.1 deraadt 419: }
1.4 millert 420: /* set mark at the end of the text */
1.1 deraadt 421: curwp->w_dotp = curwp->w_markp = lback(curwp->w_dotp);
422: curwp->w_marko = llength(curwp->w_markp);
1.7 art 423: (void)ldelnewline();
1.1 deraadt 424: curwp->w_dotp = olp;
425: curwp->w_doto = opos;
1.3 millert 426: if (olp == curbp->b_linep)
427: curwp->w_dotp = lforw(olp);
1.1 deraadt 428: if (newname != NULL)
1.3 millert 429: bp->b_flag |= BFCHG | BFBAK; /* Need a backup. */
430: else
431: bp->b_flag |= BFCHG;
432: /*
1.32 db 433: * If the insert was at the end of buffer, set lp1 to the end of
1.3 millert 434: * buffer line, and lp2 to the beginning of the newly inserted text.
435: * (Otherwise lp2 is set to NULL.) This is used below to set
436: * pointers in other windows correctly if they are also at the end of
437: * buffer.
1.1 deraadt 438: */
439: lp1 = bp->b_linep;
440: if (curwp->w_markp == lp1) {
441: lp2 = curwp->w_dotp;
442: } else {
1.4 millert 443: /* delete extraneous newline */
1.7 art 444: (void)ldelnewline();
1.1 deraadt 445: out: lp2 = NULL;
446: }
1.3 millert 447: for (wp = wheadp; wp != NULL; wp = wp->w_wndp) {
1.1 deraadt 448: if (wp->w_bufp == curbp) {
1.3 millert 449: wp->w_flag |= WFMODE | WFEDIT;
1.1 deraadt 450: if (wp != curwp && lp2 != NULL) {
1.3 millert 451: if (wp->w_dotp == lp1)
452: wp->w_dotp = lp2;
453: if (wp->w_markp == lp1)
454: wp->w_markp = lp2;
455: if (wp->w_linep == lp1)
456: wp->w_linep = lp2;
1.1 deraadt 457: }
458: }
459: }
1.40 kjell 460: cleanup:
1.39 kjell 461: undo_enable(x);
1.23 vincent 462:
1.39 kjell 463: /* return FALSE if error */
1.32 db 464: return (s != FIOERR);
1.1 deraadt 465: }
466:
467: /*
1.9 mickey 468: * Ask for a file name and write the contents of the current buffer to that
469: * file. Update the remembered file name and clear the buffer changed flag.
1.4 millert 470: * This handling of file names is different from the earlier versions and
1.27 jmc 471: * is more compatible with Gosling EMACS than with ITS EMACS.
1.1 deraadt 472: */
1.3 millert 473: /* ARGSUSED */
474: int
1.20 vincent 475: filewrite(int f, int n)
1.1 deraadt 476: {
1.4 millert 477: int s;
478: char fname[NFILEN];
1.29 vincent 479: char *adjfname, *p, *bufp;
480:
481: if ((bufp = eread("Write file: ", fname, NFILEN,
482: EFNEW | EFCR | EFFILE)) == NULL)
1.32 db 483: return (ABORT);
1.29 vincent 484: else if (bufp[0] == '\0')
1.32 db 485: return (FALSE);
1.1 deraadt 486:
487: adjfname = adjustname(fname);
1.22 vincent 488: if (adjfname == NULL)
489: return (FALSE);
1.1 deraadt 490: /* old attributes are no longer current */
491: bzero(&curbp->b_fi, sizeof(curbp->b_fi));
1.3 millert 492: if ((s = writeout(curbp, adjfname)) == TRUE) {
1.10 vincent 493: (void)strlcpy(curbp->b_fname, adjfname, sizeof curbp->b_fname);
1.26 vincent 494: p = strrchr(curbp->b_fname, '/');
495: if (p)
496: p++;
497: else
498: p = curbp->b_fname;
1.50 kjell 499: free(curbp->b_bname);
1.26 vincent 500: curbp->b_bname = strdup(p);
1.1 deraadt 501: curbp->b_flag &= ~(BFBAK | BFCHG);
502: upmodes(curbp);
503: }
1.32 db 504: return (s);
1.1 deraadt 505: }
506:
507: /*
1.4 millert 508: * Save the contents of the current buffer back into its associated file.
1.1 deraadt 509: */
510: #ifndef MAKEBACKUP
511: #define MAKEBACKUP TRUE
1.4 millert 512: #endif /* !MAKEBACKUP */
1.9 mickey 513: static int makebackup = MAKEBACKUP;
1.1 deraadt 514:
1.3 millert 515: /* ARGSUSED */
516: int
1.20 vincent 517: filesave(int f, int n)
1.1 deraadt 518: {
1.32 db 519: return (buffsave(curbp));
1.1 deraadt 520: }
521:
522: /*
1.9 mickey 523: * Save the contents of the buffer argument into its associated file. Do
524: * nothing if there have been no changes (is this a bug, or a feature?).
525: * Error if there is no remembered file name. If this is the first write
1.4 millert 526: * since the read or visit, then a backup copy of the file is made.
1.9 mickey 527: * Allow user to select whether or not to make backup files by looking at
1.4 millert 528: * the value of makebackup.
1.1 deraadt 529: */
1.3 millert 530: int
1.45 deraadt 531: buffsave(struct buffer *bp)
1.3 millert 532: {
1.4 millert 533: int s;
1.1 deraadt 534:
1.4 millert 535: /* return, no changes */
536: if ((bp->b_flag & BFCHG) == 0) {
1.1 deraadt 537: ewprintf("(No changes need to be saved)");
1.32 db 538: return (TRUE);
1.1 deraadt 539: }
1.4 millert 540:
541: /* must have a name */
542: if (bp->b_fname[0] == '\0') {
1.1 deraadt 543: ewprintf("No file name");
544: return (FALSE);
545: }
1.4 millert 546:
1.3 millert 547: if (makebackup && (bp->b_flag & BFBAK)) {
1.1 deraadt 548: s = fbackupfile(bp->b_fname);
1.4 millert 549: /* hard error */
550: if (s == ABORT)
1.32 db 551: return (FALSE);
1.4 millert 552: /* softer error */
1.9 mickey 553: if (s == FALSE &&
1.4 millert 554: (s = eyesno("Backup error, save anyway")) != TRUE)
1.32 db 555: return (s);
1.1 deraadt 556: }
1.3 millert 557: if ((s = writeout(bp, bp->b_fname)) == TRUE) {
1.1 deraadt 558: bp->b_flag &= ~(BFCHG | BFBAK);
559: upmodes(bp);
560: }
1.32 db 561: return (s);
1.1 deraadt 562: }
563:
1.3 millert 564: /*
565: * Since we don't have variables (we probably should) this is a command
566: * processor for changing the value of the make backup flag. If no argument
567: * is given, sets makebackup to true, so backups are made. If an argument is
568: * given, no backup files are made when saving a new version of a file. Only
569: * used when BACKUP is #defined.
1.1 deraadt 570: */
1.3 millert 571: /* ARGSUSED */
572: int
1.20 vincent 573: makebkfile(int f, int n)
1.1 deraadt 574: {
1.3 millert 575: if (f & FFARG)
576: makebackup = n > 0;
577: else
578: makebackup = !makebackup;
1.1 deraadt 579: ewprintf("Backup files %sabled", makebackup ? "en" : "dis");
1.32 db 580: return (TRUE);
1.1 deraadt 581: }
582:
583: /*
584: * NB: bp is passed to both ffwopen and ffclose because some
585: * attribute information may need to be updated at open time
586: * and others after the close. This is OS-dependent. Note
587: * that the ff routines are assumed to be able to tell whether
588: * the attribute information has been set up in this buffer
589: * or not.
590: */
591:
592: /*
1.9 mickey 593: * This function performs the details of file writing; writing the file
594: * in buffer bp to file fn. Uses the file management routines in the
1.4 millert 595: * "fileio.c" package. Most of the grief is checking of some sort.
1.1 deraadt 596: */
1.3 millert 597: int
1.45 deraadt 598: writeout(struct buffer *bp, char *fn)
1.3 millert 599: {
1.4 millert 600: int s;
1.1 deraadt 601:
1.4 millert 602: /* open writes message */
603: if ((s = ffwopen(fn, bp)) != FIOSUC)
1.1 deraadt 604: return (FALSE);
605: s = ffputbuf(bp);
1.4 millert 606: if (s == FIOSUC) {
607: /* no write error */
1.1 deraadt 608: s = ffclose(bp);
1.3 millert 609: if (s == FIOSUC)
1.1 deraadt 610: ewprintf("Wrote %s", fn);
1.4 millert 611: } else
612: /* ignore close error if it is a write error */
1.7 art 613: (void)ffclose(bp);
1.32 db 614: return (s == FIOSUC);
1.1 deraadt 615: }
616:
617: /*
1.4 millert 618: * Tag all windows for bp (all windows if bp == NULL) as needing their
1.1 deraadt 619: * mode line updated.
620: */
1.7 art 621: void
1.45 deraadt 622: upmodes(struct buffer *bp)
1.3 millert 623: {
1.45 deraadt 624: struct mgwin *wp;
1.1 deraadt 625:
626: for (wp = wheadp; wp != NULL; wp = wp->w_wndp)
1.3 millert 627: if (bp == NULL || curwp->w_bufp == bp)
628: wp->w_flag |= WFMODE;
1.1 deraadt 629: }
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