Annotation of src/usr.bin/mg/file.c, Revision 1.53
1.53 ! kjell 1: /* $OpenBSD: file.c,v 1.52 2006/04/03 05:03:34 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];
1.1 deraadt 186:
1.44 kjell 187: if (strlcpy(fname, fn, sizeof(fname)) >= sizeof(fname)) {
188: ewprintf("filename too long");
189: return (NULL);
190: }
191:
1.3 millert 192: for (bp = bheadp; bp != NULL; bp = bp->b_bufp) {
1.6 art 193: if (strcmp(bp->b_fname, fname) == 0)
1.32 db 194: return (bp);
1.1 deraadt 195: }
1.53 ! kjell 196: /* Not found. Create a new one, adjusting name first */
! 197: if (baugname(bname, fname, sizeof(bname)) == FALSE)
1.44 kjell 198: return (NULL);
1.10 vincent 199:
1.53 ! kjell 200: bp = bfind(bname, TRUE);
! 201: return (bp);
1.1 deraadt 202: }
203:
204: /*
1.9 mickey 205: * Read the file "fname" into the current buffer. Make all of the text
206: * in the buffer go away, after checking for unsaved changes. This is
207: * called by the "read" command, the "visit" command, and the mainline
1.19 vincent 208: * (for "mg file").
1.1 deraadt 209: */
1.3 millert 210: int
1.19 vincent 211: readin(char *fname)
1.3 millert 212: {
1.45 deraadt 213: struct mgwin *wp;
1.41 kjell 214: int status, i, ro = FALSE;
1.20 vincent 215: PF *ael;
1.1 deraadt 216:
1.4 millert 217: /* might be old */
218: if (bclear(curbp) != TRUE)
1.32 db 219: return (TRUE);
1.30 jfb 220: if ((status = insertfile(fname, fname, TRUE)) != TRUE) {
221: ewprintf("File is not readable: %s", fname);
1.32 db 222: return (FALSE);
1.30 jfb 223: }
1.18 vincent 224:
225: /*
226: * Call auto-executing function if we need to.
227: */
228: if ((ael = find_autoexec(fname)) != NULL) {
229: for (i = 0; ael[i] != NULL; i++)
230: (*ael[i])(0, 1);
231: free(ael);
232: }
1.4 millert 233:
234: /* no change */
235: curbp->b_flag &= ~BFCHG;
1.3 millert 236: for (wp = wheadp; wp != NULL; wp = wp->w_wndp) {
1.1 deraadt 237: if (wp->w_bufp == curbp) {
1.3 millert 238: wp->w_dotp = wp->w_linep = lforw(curbp->b_linep);
239: wp->w_doto = 0;
1.1 deraadt 240: wp->w_markp = NULL;
241: wp->w_marko = 0;
242: }
243: }
1.16 vincent 244:
1.41 kjell 245: /*
246: * We need to set the READONLY flag after we insert the file,
247: * unless the file is a directory.
248: */
1.16 vincent 249: if (access(fname, W_OK) && errno != ENOENT)
1.41 kjell 250: ro = TRUE;
251: if (fisdir(fname) == TRUE)
252: ro = TRUE;
253: if (ro == TRUE)
1.16 vincent 254: curbp->b_flag |= BFREADONLY;
255: else
256: curbp->b_flag &=~ BFREADONLY;
1.25 deraadt 257:
1.24 deraadt 258: if (startrow)
259: gotoline(FFARG, startrow);
1.16 vincent 260:
1.32 db 261: return (status);
1.1 deraadt 262: }
1.4 millert 263:
1.1 deraadt 264: /*
265: * NB, getting file attributes is done here under control of a flag
266: * rather than in readin, which would be cleaner. I was concerned
267: * that some operating system might require the file to be open
268: * in order to get the information. Similarly for writing.
269: */
270:
271: /*
1.39 kjell 272: * Insert a file in the current buffer, after dot. If file is a directory,
273: * and 'replacebuf' is TRUE, invoke dired mode, else die with an error.
274: * If file is a regular file, set mark at the end of the text inserted;
1.47 kjell 275: * point at the beginning. Return a standard status. Print a summary
276: * (lines read, error message) out as well. This routine also does the
277: * read end of backup processing. The BFBAK flag, if set in a buffer,
278: * says that a backup should be taken. It is set when a file is read in,
279: * but not on a new file. You don't need to make a backup copy of nothing.
1.1 deraadt 280: */
1.47 kjell 281:
1.9 mickey 282: static char *line = NULL;
283: static int linesize = 0;
1.1 deraadt 284:
1.3 millert 285: int
1.39 kjell 286: insertfile(char *fname, char *newname, int replacebuf)
1.3 millert 287: {
1.45 deraadt 288: struct buffer *bp;
289: struct line *lp1, *lp2;
290: struct line *olp; /* line we started at */
291: struct mgwin *wp;
1.23 vincent 292: int nbytes, s, nline, siz, x = -1, x2;
1.19 vincent 293: int opos; /* offset we started at */
1.4 millert 294:
1.39 kjell 295: if (replacebuf == TRUE)
1.23 vincent 296: x = undo_enable(FALSE);
297:
1.4 millert 298: lp1 = NULL;
1.1 deraadt 299: if (line == NULL) {
300: line = malloc(NLINE);
1.21 vincent 301: if (line == NULL)
302: panic("out of memory");
1.1 deraadt 303: linesize = NLINE;
304: }
1.4 millert 305:
306: /* cheap */
307: bp = curbp;
1.8 art 308: if (newname != NULL)
1.10 vincent 309: (void)strlcpy(bp->b_fname, newname, sizeof bp->b_fname);
1.4 millert 310:
311: /* hard file open */
1.39 kjell 312: if ((s = ffropen(fname, (replacebuf == TRUE) ? bp : NULL)) == FIOERR)
1.1 deraadt 313: goto out;
1.4 millert 314: if (s == FIOFNF) {
315: /* file not found */
1.1 deraadt 316: if (newname != NULL)
317: ewprintf("(New file)");
1.3 millert 318: else
319: ewprintf("(File not found)");
1.1 deraadt 320: goto out;
1.40 kjell 321: } else if (s == FIODIR) {
322: /* file was a directory */
323: if (replacebuf == FALSE) {
324: ewprintf("Cannot insert: file is a directory, %s",
325: fname);
326: goto cleanup;
327: }
328: killbuffer(bp);
329: if ((bp = dired_(fname)) == NULL)
330: return (FALSE);
331: undo_enable(x);
332: curbp = bp;
333: return (showbuffer(bp, curwp, WFHARD | WFMODE));
1.1 deraadt 334: }
335: opos = curwp->w_doto;
1.4 millert 336:
337: /* open a new line, at point, and start inserting after it */
1.23 vincent 338: x2 = undo_enable(FALSE);
1.20 vincent 339: (void)lnewline();
1.1 deraadt 340: olp = lback(curwp->w_dotp);
1.3 millert 341: if (olp == curbp->b_linep) {
1.1 deraadt 342: /* if at end of buffer, create a line to insert before */
1.7 art 343: (void)lnewline();
1.1 deraadt 344: curwp->w_dotp = lback(curwp->w_dotp);
345: }
1.23 vincent 346: undo_enable(x2);
1.4 millert 347:
348: /* don't count fake lines at the end */
349: nline = 0;
1.19 vincent 350: siz = 0;
1.3 millert 351: while ((s = ffgetline(line, linesize, &nbytes)) != FIOERR) {
1.1 deraadt 352: doneread:
1.19 vincent 353: siz += nbytes + 1;
1.3 millert 354: switch (s) {
355: case FIOSUC:
356: ++nline;
1.48 kjell 357: /* FALLTHRU */
1.4 millert 358: case FIOEOF:
359: /* the last line of the file */
1.3 millert 360: if ((lp1 = lalloc(nbytes)) == NULL) {
1.4 millert 361: /* keep message on the display */
362: s = FIOERR;
363: goto endoffile;
1.3 millert 364: }
365: bcopy(line, <ext(lp1)[0], nbytes);
366: lp2 = lback(curwp->w_dotp);
367: lp2->l_fp = lp1;
368: lp1->l_fp = curwp->w_dotp;
369: lp1->l_bp = lp2;
370: curwp->w_dotp->l_bp = lp1;
371: if (s == FIOEOF)
372: goto endoffile;
373: break;
1.19 vincent 374: case FIOLONG: {
1.4 millert 375: /* a line too long to fit in our buffer */
1.9 mickey 376: char *cp;
377: int newsize;
1.3 millert 378:
379: newsize = linesize * 2;
380: if (newsize < 0 ||
1.51 deraadt 381: (cp = malloc(newsize)) == NULL) {
1.3 millert 382: ewprintf("Could not allocate %d bytes",
1.4 millert 383: newsize);
384: s = FIOERR;
385: goto endoffile;
1.3 millert 386: }
387: bcopy(line, cp, linesize);
388: free(line);
389: line = cp;
1.9 mickey 390: s = ffgetline(line + linesize, linesize,
1.4 millert 391: &nbytes);
1.3 millert 392: nbytes += linesize;
393: linesize = newsize;
394: if (s == FIOERR)
395: goto endoffile;
396: goto doneread;
397: }
398: default:
399: ewprintf("Unknown code %d reading file", s);
400: s = FIOERR;
401: break;
1.1 deraadt 402: }
403: }
404: endoffile:
1.28 vincent 405: undo_add_insert(olp, opos, siz-1);
1.19 vincent 406:
1.4 millert 407: /* ignore errors */
1.8 art 408: ffclose(NULL);
1.4 millert 409: /* don't zap an error */
410: if (s == FIOEOF) {
1.3 millert 411: if (nline == 1)
412: ewprintf("(Read 1 line)");
413: else
414: ewprintf("(Read %d lines)", nline);
1.1 deraadt 415: }
1.4 millert 416: /* set mark at the end of the text */
1.1 deraadt 417: curwp->w_dotp = curwp->w_markp = lback(curwp->w_dotp);
418: curwp->w_marko = llength(curwp->w_markp);
1.7 art 419: (void)ldelnewline();
1.1 deraadt 420: curwp->w_dotp = olp;
421: curwp->w_doto = opos;
1.3 millert 422: if (olp == curbp->b_linep)
423: curwp->w_dotp = lforw(olp);
1.1 deraadt 424: if (newname != NULL)
1.3 millert 425: bp->b_flag |= BFCHG | BFBAK; /* Need a backup. */
426: else
427: bp->b_flag |= BFCHG;
428: /*
1.32 db 429: * If the insert was at the end of buffer, set lp1 to the end of
1.3 millert 430: * buffer line, and lp2 to the beginning of the newly inserted text.
431: * (Otherwise lp2 is set to NULL.) This is used below to set
432: * pointers in other windows correctly if they are also at the end of
433: * buffer.
1.1 deraadt 434: */
435: lp1 = bp->b_linep;
436: if (curwp->w_markp == lp1) {
437: lp2 = curwp->w_dotp;
438: } else {
1.4 millert 439: /* delete extraneous newline */
1.7 art 440: (void)ldelnewline();
1.1 deraadt 441: out: lp2 = NULL;
442: }
1.3 millert 443: for (wp = wheadp; wp != NULL; wp = wp->w_wndp) {
1.1 deraadt 444: if (wp->w_bufp == curbp) {
1.3 millert 445: wp->w_flag |= WFMODE | WFEDIT;
1.1 deraadt 446: if (wp != curwp && lp2 != NULL) {
1.3 millert 447: if (wp->w_dotp == lp1)
448: wp->w_dotp = lp2;
449: if (wp->w_markp == lp1)
450: wp->w_markp = lp2;
451: if (wp->w_linep == lp1)
452: wp->w_linep = lp2;
1.1 deraadt 453: }
454: }
455: }
1.40 kjell 456: cleanup:
1.39 kjell 457: undo_enable(x);
1.23 vincent 458:
1.39 kjell 459: /* return FALSE if error */
1.32 db 460: return (s != FIOERR);
1.1 deraadt 461: }
462:
463: /*
1.9 mickey 464: * Ask for a file name and write the contents of the current buffer to that
465: * file. Update the remembered file name and clear the buffer changed flag.
1.4 millert 466: * This handling of file names is different from the earlier versions and
1.27 jmc 467: * is more compatible with Gosling EMACS than with ITS EMACS.
1.1 deraadt 468: */
1.3 millert 469: /* ARGSUSED */
470: int
1.20 vincent 471: filewrite(int f, int n)
1.1 deraadt 472: {
1.4 millert 473: int s;
1.53 ! kjell 474: char fname[NFILEN], bn[NBUFN];
! 475: char *adjfname, *bufp;
1.29 vincent 476:
477: if ((bufp = eread("Write file: ", fname, NFILEN,
478: EFNEW | EFCR | EFFILE)) == NULL)
1.32 db 479: return (ABORT);
1.29 vincent 480: else if (bufp[0] == '\0')
1.32 db 481: return (FALSE);
1.1 deraadt 482:
483: adjfname = adjustname(fname);
1.22 vincent 484: if (adjfname == NULL)
485: return (FALSE);
1.1 deraadt 486: /* old attributes are no longer current */
487: bzero(&curbp->b_fi, sizeof(curbp->b_fi));
1.3 millert 488: if ((s = writeout(curbp, adjfname)) == TRUE) {
1.53 ! kjell 489: (void)strlcpy(curbp->b_fname, adjfname, sizeof(curbp->b_fname));
1.50 kjell 490: free(curbp->b_bname);
1.53 ! kjell 491: if (baugname(bn, basename(curbp->b_fname), sizeof(bn))
! 492: == FALSE)
! 493: return (FALSE);
! 494: if ((curbp->b_bname = strdup(bn)) == NULL)
! 495: return (FALSE);
1.1 deraadt 496: curbp->b_flag &= ~(BFBAK | BFCHG);
497: upmodes(curbp);
498: }
1.32 db 499: return (s);
1.1 deraadt 500: }
501:
502: /*
1.4 millert 503: * Save the contents of the current buffer back into its associated file.
1.1 deraadt 504: */
505: #ifndef MAKEBACKUP
506: #define MAKEBACKUP TRUE
1.4 millert 507: #endif /* !MAKEBACKUP */
1.9 mickey 508: static int makebackup = MAKEBACKUP;
1.1 deraadt 509:
1.3 millert 510: /* ARGSUSED */
511: int
1.20 vincent 512: filesave(int f, int n)
1.1 deraadt 513: {
1.32 db 514: return (buffsave(curbp));
1.1 deraadt 515: }
516:
517: /*
1.9 mickey 518: * Save the contents of the buffer argument into its associated file. Do
519: * nothing if there have been no changes (is this a bug, or a feature?).
520: * Error if there is no remembered file name. If this is the first write
1.4 millert 521: * since the read or visit, then a backup copy of the file is made.
1.9 mickey 522: * Allow user to select whether or not to make backup files by looking at
1.4 millert 523: * the value of makebackup.
1.1 deraadt 524: */
1.3 millert 525: int
1.45 deraadt 526: buffsave(struct buffer *bp)
1.3 millert 527: {
1.4 millert 528: int s;
1.1 deraadt 529:
1.4 millert 530: /* return, no changes */
531: if ((bp->b_flag & BFCHG) == 0) {
1.1 deraadt 532: ewprintf("(No changes need to be saved)");
1.32 db 533: return (TRUE);
1.1 deraadt 534: }
1.4 millert 535:
536: /* must have a name */
537: if (bp->b_fname[0] == '\0') {
1.1 deraadt 538: ewprintf("No file name");
539: return (FALSE);
540: }
1.4 millert 541:
1.3 millert 542: if (makebackup && (bp->b_flag & BFBAK)) {
1.1 deraadt 543: s = fbackupfile(bp->b_fname);
1.4 millert 544: /* hard error */
545: if (s == ABORT)
1.32 db 546: return (FALSE);
1.4 millert 547: /* softer error */
1.9 mickey 548: if (s == FALSE &&
1.4 millert 549: (s = eyesno("Backup error, save anyway")) != TRUE)
1.32 db 550: return (s);
1.1 deraadt 551: }
1.3 millert 552: if ((s = writeout(bp, bp->b_fname)) == TRUE) {
1.1 deraadt 553: bp->b_flag &= ~(BFCHG | BFBAK);
554: upmodes(bp);
555: }
1.32 db 556: return (s);
1.1 deraadt 557: }
558:
1.3 millert 559: /*
560: * Since we don't have variables (we probably should) this is a command
561: * processor for changing the value of the make backup flag. If no argument
562: * is given, sets makebackup to true, so backups are made. If an argument is
563: * given, no backup files are made when saving a new version of a file. Only
564: * used when BACKUP is #defined.
1.1 deraadt 565: */
1.3 millert 566: /* ARGSUSED */
567: int
1.20 vincent 568: makebkfile(int f, int n)
1.1 deraadt 569: {
1.3 millert 570: if (f & FFARG)
571: makebackup = n > 0;
572: else
573: makebackup = !makebackup;
1.1 deraadt 574: ewprintf("Backup files %sabled", makebackup ? "en" : "dis");
1.32 db 575: return (TRUE);
1.1 deraadt 576: }
577:
578: /*
579: * NB: bp is passed to both ffwopen and ffclose because some
580: * attribute information may need to be updated at open time
581: * and others after the close. This is OS-dependent. Note
582: * that the ff routines are assumed to be able to tell whether
583: * the attribute information has been set up in this buffer
584: * or not.
585: */
586:
587: /*
1.9 mickey 588: * This function performs the details of file writing; writing the file
589: * in buffer bp to file fn. Uses the file management routines in the
1.4 millert 590: * "fileio.c" package. Most of the grief is checking of some sort.
1.1 deraadt 591: */
1.3 millert 592: int
1.45 deraadt 593: writeout(struct buffer *bp, char *fn)
1.3 millert 594: {
1.4 millert 595: int s;
1.1 deraadt 596:
1.4 millert 597: /* open writes message */
598: if ((s = ffwopen(fn, bp)) != FIOSUC)
1.1 deraadt 599: return (FALSE);
600: s = ffputbuf(bp);
1.4 millert 601: if (s == FIOSUC) {
602: /* no write error */
1.1 deraadt 603: s = ffclose(bp);
1.3 millert 604: if (s == FIOSUC)
1.1 deraadt 605: ewprintf("Wrote %s", fn);
1.4 millert 606: } else
607: /* ignore close error if it is a write error */
1.7 art 608: (void)ffclose(bp);
1.32 db 609: return (s == FIOSUC);
1.1 deraadt 610: }
611:
612: /*
1.4 millert 613: * Tag all windows for bp (all windows if bp == NULL) as needing their
1.1 deraadt 614: * mode line updated.
615: */
1.7 art 616: void
1.45 deraadt 617: upmodes(struct buffer *bp)
1.3 millert 618: {
1.45 deraadt 619: struct mgwin *wp;
1.1 deraadt 620:
621: for (wp = wheadp; wp != NULL; wp = wp->w_wndp)
1.3 millert 622: if (bp == NULL || curwp->w_bufp == bp)
623: wp->w_flag |= WFMODE;
1.1 deraadt 624: }
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