Annotation of src/usr.bin/mg/file.c, Revision 1.51
1.51 ! deraadt 1: /* $OpenBSD: file.c,v 1.50 2005/12/20 06:17:36 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:
1.41 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: {
1.45 deraadt 184: struct buffer *bp;
1.44 kjell 185: char bname[NBUFN], fname[NBUFN];
1.20 vincent 186: unsigned int count, remain, i;
1.1 deraadt 187:
1.44 kjell 188: if (strlcpy(fname, fn, sizeof(fname)) >= sizeof(fname)) {
189: ewprintf("filename too long");
190: return (NULL);
191: }
192:
1.3 millert 193: for (bp = bheadp; bp != NULL; bp = bp->b_bufp) {
1.6 art 194: if (strcmp(bp->b_fname, fname) == 0)
1.32 db 195: return (bp);
1.1 deraadt 196: }
1.14 vincent 197: i = strlcpy(bname, basename(fname), sizeof(bname));
1.33 beck 198: if (i >= sizeof(bname))
1.44 kjell 199: return (NULL);
1.14 vincent 200: remain = sizeof(bname) - i;
201: for (count = 2; bfind(bname, FALSE) != NULL; count++)
202: snprintf(&bname[i], remain, "<%d>", count);
1.10 vincent 203:
1.32 db 204: return (bfind(bname, TRUE));
1.1 deraadt 205: }
206:
207: /*
1.9 mickey 208: * Read the file "fname" into the current buffer. Make all of the text
209: * in the buffer go away, after checking for unsaved changes. This is
210: * called by the "read" command, the "visit" command, and the mainline
1.19 vincent 211: * (for "mg file").
1.1 deraadt 212: */
1.3 millert 213: int
1.19 vincent 214: readin(char *fname)
1.3 millert 215: {
1.45 deraadt 216: struct mgwin *wp;
1.41 kjell 217: int status, i, ro = FALSE;
1.20 vincent 218: PF *ael;
1.1 deraadt 219:
1.4 millert 220: /* might be old */
221: if (bclear(curbp) != TRUE)
1.32 db 222: return (TRUE);
1.30 jfb 223: if ((status = insertfile(fname, fname, TRUE)) != TRUE) {
224: ewprintf("File is not readable: %s", fname);
1.32 db 225: return (FALSE);
1.30 jfb 226: }
1.18 vincent 227:
228: /*
229: * Call auto-executing function if we need to.
230: */
231: if ((ael = find_autoexec(fname)) != NULL) {
232: for (i = 0; ael[i] != NULL; i++)
233: (*ael[i])(0, 1);
234: free(ael);
235: }
1.4 millert 236:
237: /* no change */
238: curbp->b_flag &= ~BFCHG;
1.3 millert 239: for (wp = wheadp; wp != NULL; wp = wp->w_wndp) {
1.1 deraadt 240: if (wp->w_bufp == curbp) {
1.3 millert 241: wp->w_dotp = wp->w_linep = lforw(curbp->b_linep);
242: wp->w_doto = 0;
1.1 deraadt 243: wp->w_markp = NULL;
244: wp->w_marko = 0;
245: }
246: }
1.16 vincent 247:
1.41 kjell 248: /*
249: * We need to set the READONLY flag after we insert the file,
250: * unless the file is a directory.
251: */
1.16 vincent 252: if (access(fname, W_OK) && errno != ENOENT)
1.41 kjell 253: ro = TRUE;
254: if (fisdir(fname) == TRUE)
255: ro = TRUE;
256: if (ro == TRUE)
1.16 vincent 257: curbp->b_flag |= BFREADONLY;
258: else
259: curbp->b_flag &=~ BFREADONLY;
1.25 deraadt 260:
1.24 deraadt 261: if (startrow)
262: gotoline(FFARG, startrow);
1.16 vincent 263:
1.32 db 264: return (status);
1.1 deraadt 265: }
1.4 millert 266:
1.1 deraadt 267: /*
268: * NB, getting file attributes is done here under control of a flag
269: * rather than in readin, which would be cleaner. I was concerned
270: * that some operating system might require the file to be open
271: * in order to get the information. Similarly for writing.
272: */
273:
274: /*
1.39 kjell 275: * Insert a file in the current buffer, after dot. If file is a directory,
276: * and 'replacebuf' is TRUE, invoke dired mode, else die with an error.
277: * If file is a regular file, set mark at the end of the text inserted;
1.47 kjell 278: * point at the beginning. Return a standard status. Print a summary
279: * (lines read, error message) out as well. This routine also does the
280: * read end of backup processing. The BFBAK flag, if set in a buffer,
281: * says that a backup should be taken. It is set when a file is read in,
282: * but not on a new file. You don't need to make a backup copy of nothing.
1.1 deraadt 283: */
1.47 kjell 284:
1.9 mickey 285: static char *line = NULL;
286: static int linesize = 0;
1.1 deraadt 287:
1.3 millert 288: int
1.39 kjell 289: insertfile(char *fname, char *newname, int replacebuf)
1.3 millert 290: {
1.45 deraadt 291: struct buffer *bp;
292: struct line *lp1, *lp2;
293: struct line *olp; /* line we started at */
294: struct mgwin *wp;
1.23 vincent 295: int nbytes, s, nline, siz, x = -1, x2;
1.19 vincent 296: int opos; /* offset we started at */
1.4 millert 297:
1.39 kjell 298: if (replacebuf == TRUE)
1.23 vincent 299: x = undo_enable(FALSE);
300:
1.4 millert 301: lp1 = NULL;
1.1 deraadt 302: if (line == NULL) {
303: line = malloc(NLINE);
1.21 vincent 304: if (line == NULL)
305: panic("out of memory");
1.1 deraadt 306: linesize = NLINE;
307: }
1.4 millert 308:
309: /* cheap */
310: bp = curbp;
1.8 art 311: if (newname != NULL)
1.10 vincent 312: (void)strlcpy(bp->b_fname, newname, sizeof bp->b_fname);
1.4 millert 313:
314: /* hard file open */
1.39 kjell 315: if ((s = ffropen(fname, (replacebuf == TRUE) ? bp : NULL)) == FIOERR)
1.1 deraadt 316: goto out;
1.4 millert 317: if (s == FIOFNF) {
318: /* file not found */
1.1 deraadt 319: if (newname != NULL)
320: ewprintf("(New file)");
1.3 millert 321: else
322: ewprintf("(File not found)");
1.1 deraadt 323: goto out;
1.40 kjell 324: } else if (s == FIODIR) {
325: /* file was a directory */
326: if (replacebuf == FALSE) {
327: ewprintf("Cannot insert: file is a directory, %s",
328: fname);
329: goto cleanup;
330: }
331: killbuffer(bp);
332: if ((bp = dired_(fname)) == NULL)
333: return (FALSE);
334: undo_enable(x);
335: curbp = bp;
336: return (showbuffer(bp, curwp, WFHARD | WFMODE));
1.1 deraadt 337: }
338: opos = curwp->w_doto;
1.4 millert 339:
340: /* open a new line, at point, and start inserting after it */
1.23 vincent 341: x2 = undo_enable(FALSE);
1.20 vincent 342: (void)lnewline();
1.1 deraadt 343: olp = lback(curwp->w_dotp);
1.3 millert 344: if (olp == curbp->b_linep) {
1.1 deraadt 345: /* if at end of buffer, create a line to insert before */
1.7 art 346: (void)lnewline();
1.1 deraadt 347: curwp->w_dotp = lback(curwp->w_dotp);
348: }
1.23 vincent 349: undo_enable(x2);
1.4 millert 350:
351: /* don't count fake lines at the end */
352: nline = 0;
1.19 vincent 353: siz = 0;
1.3 millert 354: while ((s = ffgetline(line, linesize, &nbytes)) != FIOERR) {
1.1 deraadt 355: doneread:
1.19 vincent 356: siz += nbytes + 1;
1.3 millert 357: switch (s) {
358: case FIOSUC:
359: ++nline;
1.48 kjell 360: /* FALLTHRU */
1.4 millert 361: case FIOEOF:
362: /* the last line of the file */
1.3 millert 363: if ((lp1 = lalloc(nbytes)) == NULL) {
1.4 millert 364: /* keep message on the display */
365: s = FIOERR;
366: goto endoffile;
1.3 millert 367: }
368: bcopy(line, <ext(lp1)[0], nbytes);
369: lp2 = lback(curwp->w_dotp);
370: lp2->l_fp = lp1;
371: lp1->l_fp = curwp->w_dotp;
372: lp1->l_bp = lp2;
373: curwp->w_dotp->l_bp = lp1;
374: if (s == FIOEOF)
375: goto endoffile;
376: break;
1.19 vincent 377: case FIOLONG: {
1.4 millert 378: /* a line too long to fit in our buffer */
1.9 mickey 379: char *cp;
380: int newsize;
1.3 millert 381:
382: newsize = linesize * 2;
383: if (newsize < 0 ||
1.51 ! deraadt 384: (cp = malloc(newsize)) == NULL) {
1.3 millert 385: ewprintf("Could not allocate %d bytes",
1.4 millert 386: newsize);
387: s = FIOERR;
388: goto endoffile;
1.3 millert 389: }
390: bcopy(line, cp, linesize);
391: free(line);
392: line = cp;
1.9 mickey 393: s = ffgetline(line + linesize, linesize,
1.4 millert 394: &nbytes);
1.3 millert 395: nbytes += linesize;
396: linesize = newsize;
397: if (s == FIOERR)
398: goto endoffile;
399: goto doneread;
400: }
401: default:
402: ewprintf("Unknown code %d reading file", s);
403: s = FIOERR;
404: break;
1.1 deraadt 405: }
406: }
407: endoffile:
1.28 vincent 408: undo_add_insert(olp, opos, siz-1);
1.19 vincent 409:
1.4 millert 410: /* ignore errors */
1.8 art 411: ffclose(NULL);
1.4 millert 412: /* don't zap an error */
413: if (s == FIOEOF) {
1.3 millert 414: if (nline == 1)
415: ewprintf("(Read 1 line)");
416: else
417: ewprintf("(Read %d lines)", nline);
1.1 deraadt 418: }
1.4 millert 419: /* set mark at the end of the text */
1.1 deraadt 420: curwp->w_dotp = curwp->w_markp = lback(curwp->w_dotp);
421: curwp->w_marko = llength(curwp->w_markp);
1.7 art 422: (void)ldelnewline();
1.1 deraadt 423: curwp->w_dotp = olp;
424: curwp->w_doto = opos;
1.3 millert 425: if (olp == curbp->b_linep)
426: curwp->w_dotp = lforw(olp);
1.1 deraadt 427: if (newname != NULL)
1.3 millert 428: bp->b_flag |= BFCHG | BFBAK; /* Need a backup. */
429: else
430: bp->b_flag |= BFCHG;
431: /*
1.32 db 432: * If the insert was at the end of buffer, set lp1 to the end of
1.3 millert 433: * buffer line, and lp2 to the beginning of the newly inserted text.
434: * (Otherwise lp2 is set to NULL.) This is used below to set
435: * pointers in other windows correctly if they are also at the end of
436: * buffer.
1.1 deraadt 437: */
438: lp1 = bp->b_linep;
439: if (curwp->w_markp == lp1) {
440: lp2 = curwp->w_dotp;
441: } else {
1.4 millert 442: /* delete extraneous newline */
1.7 art 443: (void)ldelnewline();
1.1 deraadt 444: out: lp2 = NULL;
445: }
1.3 millert 446: for (wp = wheadp; wp != NULL; wp = wp->w_wndp) {
1.1 deraadt 447: if (wp->w_bufp == curbp) {
1.3 millert 448: wp->w_flag |= WFMODE | WFEDIT;
1.1 deraadt 449: if (wp != curwp && lp2 != NULL) {
1.3 millert 450: if (wp->w_dotp == lp1)
451: wp->w_dotp = lp2;
452: if (wp->w_markp == lp1)
453: wp->w_markp = lp2;
454: if (wp->w_linep == lp1)
455: wp->w_linep = lp2;
1.1 deraadt 456: }
457: }
458: }
1.40 kjell 459: cleanup:
1.39 kjell 460: undo_enable(x);
1.23 vincent 461:
1.39 kjell 462: /* return FALSE if error */
1.32 db 463: return (s != FIOERR);
1.1 deraadt 464: }
465:
466: /*
1.9 mickey 467: * Ask for a file name and write the contents of the current buffer to that
468: * file. Update the remembered file name and clear the buffer changed flag.
1.4 millert 469: * This handling of file names is different from the earlier versions and
1.27 jmc 470: * is more compatible with Gosling EMACS than with ITS EMACS.
1.1 deraadt 471: */
1.3 millert 472: /* ARGSUSED */
473: int
1.20 vincent 474: filewrite(int f, int n)
1.1 deraadt 475: {
1.4 millert 476: int s;
477: char fname[NFILEN];
1.29 vincent 478: char *adjfname, *p, *bufp;
479:
480: if ((bufp = eread("Write file: ", fname, NFILEN,
481: EFNEW | EFCR | EFFILE)) == NULL)
1.32 db 482: return (ABORT);
1.29 vincent 483: else if (bufp[0] == '\0')
1.32 db 484: return (FALSE);
1.1 deraadt 485:
486: adjfname = adjustname(fname);
1.22 vincent 487: if (adjfname == NULL)
488: return (FALSE);
1.1 deraadt 489: /* old attributes are no longer current */
490: bzero(&curbp->b_fi, sizeof(curbp->b_fi));
1.3 millert 491: if ((s = writeout(curbp, adjfname)) == TRUE) {
1.10 vincent 492: (void)strlcpy(curbp->b_fname, adjfname, sizeof curbp->b_fname);
1.26 vincent 493: p = strrchr(curbp->b_fname, '/');
494: if (p)
495: p++;
496: else
497: p = curbp->b_fname;
1.50 kjell 498: free(curbp->b_bname);
1.26 vincent 499: curbp->b_bname = strdup(p);
1.1 deraadt 500: curbp->b_flag &= ~(BFBAK | BFCHG);
501: upmodes(curbp);
502: }
1.32 db 503: return (s);
1.1 deraadt 504: }
505:
506: /*
1.4 millert 507: * Save the contents of the current buffer back into its associated file.
1.1 deraadt 508: */
509: #ifndef MAKEBACKUP
510: #define MAKEBACKUP TRUE
1.4 millert 511: #endif /* !MAKEBACKUP */
1.9 mickey 512: static int makebackup = MAKEBACKUP;
1.1 deraadt 513:
1.3 millert 514: /* ARGSUSED */
515: int
1.20 vincent 516: filesave(int f, int n)
1.1 deraadt 517: {
1.32 db 518: return (buffsave(curbp));
1.1 deraadt 519: }
520:
521: /*
1.9 mickey 522: * Save the contents of the buffer argument into its associated file. Do
523: * nothing if there have been no changes (is this a bug, or a feature?).
524: * Error if there is no remembered file name. If this is the first write
1.4 millert 525: * since the read or visit, then a backup copy of the file is made.
1.9 mickey 526: * Allow user to select whether or not to make backup files by looking at
1.4 millert 527: * the value of makebackup.
1.1 deraadt 528: */
1.3 millert 529: int
1.45 deraadt 530: buffsave(struct buffer *bp)
1.3 millert 531: {
1.4 millert 532: int s;
1.1 deraadt 533:
1.4 millert 534: /* return, no changes */
535: if ((bp->b_flag & BFCHG) == 0) {
1.1 deraadt 536: ewprintf("(No changes need to be saved)");
1.32 db 537: return (TRUE);
1.1 deraadt 538: }
1.4 millert 539:
540: /* must have a name */
541: if (bp->b_fname[0] == '\0') {
1.1 deraadt 542: ewprintf("No file name");
543: return (FALSE);
544: }
1.4 millert 545:
1.3 millert 546: if (makebackup && (bp->b_flag & BFBAK)) {
1.1 deraadt 547: s = fbackupfile(bp->b_fname);
1.4 millert 548: /* hard error */
549: if (s == ABORT)
1.32 db 550: return (FALSE);
1.4 millert 551: /* softer error */
1.9 mickey 552: if (s == FALSE &&
1.4 millert 553: (s = eyesno("Backup error, save anyway")) != TRUE)
1.32 db 554: return (s);
1.1 deraadt 555: }
1.3 millert 556: if ((s = writeout(bp, bp->b_fname)) == TRUE) {
1.1 deraadt 557: bp->b_flag &= ~(BFCHG | BFBAK);
558: upmodes(bp);
559: }
1.32 db 560: return (s);
1.1 deraadt 561: }
562:
1.3 millert 563: /*
564: * Since we don't have variables (we probably should) this is a command
565: * processor for changing the value of the make backup flag. If no argument
566: * is given, sets makebackup to true, so backups are made. If an argument is
567: * given, no backup files are made when saving a new version of a file. Only
568: * used when BACKUP is #defined.
1.1 deraadt 569: */
1.3 millert 570: /* ARGSUSED */
571: int
1.20 vincent 572: makebkfile(int f, int n)
1.1 deraadt 573: {
1.3 millert 574: if (f & FFARG)
575: makebackup = n > 0;
576: else
577: makebackup = !makebackup;
1.1 deraadt 578: ewprintf("Backup files %sabled", makebackup ? "en" : "dis");
1.32 db 579: return (TRUE);
1.1 deraadt 580: }
581:
582: /*
583: * NB: bp is passed to both ffwopen and ffclose because some
584: * attribute information may need to be updated at open time
585: * and others after the close. This is OS-dependent. Note
586: * that the ff routines are assumed to be able to tell whether
587: * the attribute information has been set up in this buffer
588: * or not.
589: */
590:
591: /*
1.9 mickey 592: * This function performs the details of file writing; writing the file
593: * in buffer bp to file fn. Uses the file management routines in the
1.4 millert 594: * "fileio.c" package. Most of the grief is checking of some sort.
1.1 deraadt 595: */
1.3 millert 596: int
1.45 deraadt 597: writeout(struct buffer *bp, char *fn)
1.3 millert 598: {
1.4 millert 599: int s;
1.1 deraadt 600:
1.4 millert 601: /* open writes message */
602: if ((s = ffwopen(fn, bp)) != FIOSUC)
1.1 deraadt 603: return (FALSE);
604: s = ffputbuf(bp);
1.4 millert 605: if (s == FIOSUC) {
606: /* no write error */
1.1 deraadt 607: s = ffclose(bp);
1.3 millert 608: if (s == FIOSUC)
1.1 deraadt 609: ewprintf("Wrote %s", fn);
1.4 millert 610: } else
611: /* ignore close error if it is a write error */
1.7 art 612: (void)ffclose(bp);
1.32 db 613: return (s == FIOSUC);
1.1 deraadt 614: }
615:
616: /*
1.4 millert 617: * Tag all windows for bp (all windows if bp == NULL) as needing their
1.1 deraadt 618: * mode line updated.
619: */
1.7 art 620: void
1.45 deraadt 621: upmodes(struct buffer *bp)
1.3 millert 622: {
1.45 deraadt 623: struct mgwin *wp;
1.1 deraadt 624:
625: for (wp = wheadp; wp != NULL; wp = wp->w_wndp)
1.3 millert 626: if (bp == NULL || curwp->w_bufp == bp)
627: wp->w_flag |= WFMODE;
1.1 deraadt 628: }
![[BACK]](/icons/back.gif){kind=icon}
Return to file.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / mg