Annotation of src/usr.bin/mg/file.c, Revision 1.39
1.39 ! kjell 1: /* $OpenBSD: file.c,v 1.38 2005/08/09 00:53:48 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:
1.6 art 9: #include <libgen.h>
1.4 millert 10: #include "def.h"
11:
1.1 deraadt 12: /*
1.4 millert 13: * Insert a file into the current buffer. Real easy - just call the
1.1 deraadt 14: * insertfile routine with the file name.
15: */
1.3 millert 16: /* ARGSUSED */
17: int
1.15 vincent 18: fileinsert(int f, int n)
1.1 deraadt 19: {
1.29 vincent 20: char fname[NFILEN], *bufp, *adjf;
1.1 deraadt 21:
1.29 vincent 22: bufp = eread("Insert file: ", fname, NFILEN, EFNEW | EFCR | EFFILE);
23: if (bufp == NULL)
1.32 db 24: return (ABORT);
1.29 vincent 25: else if (bufp[0] == '\0')
1.32 db 26: return (FALSE);
1.29 vincent 27: adjf = adjustname(bufp);
1.22 vincent 28: if (adjf == NULL)
29: return (FALSE);
1.32 db 30: return (insertfile(adjf, NULL, FALSE));
1.1 deraadt 31: }
32:
33: /*
1.9 mickey 34: * Select a file for editing. Look around to see if you can find the file
1.4 millert 35: * in another buffer; if you can find it, just switch to the buffer. If
1.9 mickey 36: * you cannot find the file, create a new buffer, read in the text, and
1.4 millert 37: * switch to the new buffer.
1.1 deraadt 38: */
1.3 millert 39: /* ARGSUSED */
40: int
1.15 vincent 41: filevisit(int f, int n)
1.1 deraadt 42: {
1.4 millert 43: BUFFER *bp;
1.34 cloder 44: char fname[NFILEN], *bufp, *adjf, *slash;
1.39 ! kjell 45: int status;
1.34 cloder 46:
47: if (curbp->b_fname && curbp->b_fname[0] != '\0') {
48: strlcpy(fname, curbp->b_fname, sizeof(fname));
49: if ((slash = strrchr(fname, '/')) != NULL) {
50: *(slash + 1) = '\0';
51: }
52: }
53: else
54: fname[0] = '\0';
1.1 deraadt 55:
1.38 kjell 56: bufp = eread("Find file: ", fname, NFILEN,
57: EFNEW | EFCR | EFFILE | EFDEF);
1.29 vincent 58: if (bufp == NULL)
1.32 db 59: return (ABORT);
1.29 vincent 60: else if (bufp[0] == '\0')
1.32 db 61: return (FALSE);
1.1 deraadt 62: adjf = adjustname(fname);
1.22 vincent 63: if (adjf == NULL)
64: return (FALSE);
1.3 millert 65: if ((bp = findbuffer(adjf)) == NULL)
1.32 db 66: return (FALSE);
1.1 deraadt 67: curbp = bp;
1.3 millert 68: if (showbuffer(bp, curwp, WFHARD) != TRUE)
1.32 db 69: return (FALSE);
1.39 ! kjell 70: if (bp->b_fname[0] == '\0') {
1.30 jfb 71: if ((status = readin(adjf)) != TRUE)
72: killbuffer(bp);
1.32 db 73: return (status);
1.30 jfb 74: }
1.32 db 75: return (TRUE);
1.35 jason 76: }
77:
1.36 kjell 78: /*
79: * Replace the current file with an alternate one. Semantics for finding
80: * the replacement file are the same as 'filevisit', except the current
81: * buffer is killed before the switch. If the kill fails, or is aborted,
82: * revert to the original file.
83: */
1.35 jason 84: int
85: filevisitalt(int f, int n)
86: {
1.36 kjell 87: BUFFER *bp;
88: char fname[NFILEN], *bufp, *adjf, *slash;
89: int status;
90:
91: if (curbp->b_fname && curbp->b_fname[0] != '\0') {
92: strlcpy(fname, curbp->b_fname, sizeof(fname));
93: if ((slash = strrchr(fname, '/')) != NULL) {
94: *(slash + 1) = '\0';
95: }
96: } else
97: fname[0] = '\0';
98:
99: bufp = eread("Find alternate file: ", fname, NFILEN,
100: EFNEW | EFCR | EFFILE | EFDEF);
101: if (bufp == NULL)
1.35 jason 102: return (ABORT);
1.36 kjell 103: else if (bufp[0] == '\0')
104: return (FALSE);
105:
106: status = killbuffer(curbp);
107: if (status == ABORT || status == FALSE)
108: return (ABORT);
109:
110: adjf = adjustname(fname);
111: if (adjf == NULL)
112: return (FALSE);
113: if ((bp = findbuffer(adjf)) == NULL)
114: return (FALSE);
115: curbp = bp;
116: if (showbuffer(bp, curwp, WFHARD) != TRUE)
117: return (FALSE);
118: if (bp->b_fname[0] == '\0') {
119: if ((status = readin(adjf)) != TRUE)
120: killbuffer(bp);
121: return (status);
122: }
123: return (TRUE);
1.1 deraadt 124: }
125:
1.17 vincent 126: int
127: filevisitro(int f, int n)
128: {
129: int error;
130:
131: error = filevisit(f, n);
132: if (error != TRUE)
133: return (error);
134: curbp->b_flag |= BFREADONLY;
135: return (TRUE);
136: }
1.32 db 137:
1.1 deraadt 138: /*
1.4 millert 139: * Pop to a file in the other window. Same as the last function, but uses
1.1 deraadt 140: * popbuf instead of showbuffer.
141: */
1.3 millert 142: /* ARGSUSED */
143: int
1.15 vincent 144: poptofile(int f, int n)
1.1 deraadt 145: {
1.4 millert 146: BUFFER *bp;
147: MGWIN *wp;
1.29 vincent 148: char fname[NFILEN], *adjf, *bufp;
1.39 ! kjell 149: int status;
1.1 deraadt 150:
1.29 vincent 151: if ((bufp = eread("Find file in other window: ", fname, NFILEN,
152: EFNEW | EFCR | EFFILE)) == NULL)
1.32 db 153: return (ABORT);
1.29 vincent 154: else if (bufp[0] == '\0')
1.32 db 155: return (FALSE);
1.1 deraadt 156: adjf = adjustname(fname);
1.22 vincent 157: if (adjf == NULL)
158: return (FALSE);
1.3 millert 159: if ((bp = findbuffer(adjf)) == NULL)
1.32 db 160: return (FALSE);
1.3 millert 161: if ((wp = popbuf(bp)) == NULL)
1.32 db 162: return (FALSE);
1.1 deraadt 163: curbp = bp;
164: curwp = wp;
1.39 ! kjell 165: if (bp->b_fname[0] == '\0') {
1.30 jfb 166: if ((status = readin(adjf)) != TRUE)
167: killbuffer(bp);
1.32 db 168: return (status);
1.30 jfb 169: }
1.32 db 170: return (TRUE);
1.1 deraadt 171: }
172:
173: /*
1.32 db 174: * Given a file name, either find the buffer it uses, or create a new
1.1 deraadt 175: * empty buffer to put it in.
176: */
177: BUFFER *
1.14 vincent 178: findbuffer(char *fname)
1.1 deraadt 179: {
1.4 millert 180: BUFFER *bp;
1.10 vincent 181: char bname[NBUFN];
1.20 vincent 182: unsigned int count, remain, i;
1.1 deraadt 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: }
1.14 vincent 188: i = strlcpy(bname, basename(fname), sizeof(bname));
1.33 beck 189: if (i >= sizeof(bname))
190: return NULL;
1.14 vincent 191: remain = sizeof(bname) - i;
192: for (count = 2; bfind(bname, FALSE) != NULL; count++)
193: snprintf(&bname[i], remain, "<%d>", count);
1.10 vincent 194:
1.32 db 195: return (bfind(bname, TRUE));
1.1 deraadt 196: }
197:
198: /*
1.9 mickey 199: * Read the file "fname" into the current buffer. Make all of the text
200: * in the buffer go away, after checking for unsaved changes. This is
201: * called by the "read" command, the "visit" command, and the mainline
1.19 vincent 202: * (for "mg file").
1.1 deraadt 203: */
1.3 millert 204: int
1.19 vincent 205: readin(char *fname)
1.3 millert 206: {
1.4 millert 207: MGWIN *wp;
1.18 vincent 208: int status, i;
1.20 vincent 209: PF *ael;
1.1 deraadt 210:
1.4 millert 211: /* might be old */
212: if (bclear(curbp) != TRUE)
1.32 db 213: return (TRUE);
1.30 jfb 214: if ((status = insertfile(fname, fname, TRUE)) != TRUE) {
215: ewprintf("File is not readable: %s", fname);
1.32 db 216: return (FALSE);
1.30 jfb 217: }
1.18 vincent 218:
219: /*
220: * Call auto-executing function if we need to.
221: */
222: if ((ael = find_autoexec(fname)) != NULL) {
223: for (i = 0; ael[i] != NULL; i++)
224: (*ael[i])(0, 1);
225: free(ael);
226: }
1.4 millert 227:
228: /* no change */
229: curbp->b_flag &= ~BFCHG;
1.3 millert 230: for (wp = wheadp; wp != NULL; wp = wp->w_wndp) {
1.1 deraadt 231: if (wp->w_bufp == curbp) {
1.3 millert 232: wp->w_dotp = wp->w_linep = lforw(curbp->b_linep);
233: wp->w_doto = 0;
1.1 deraadt 234: wp->w_markp = NULL;
235: wp->w_marko = 0;
236: }
237: }
1.16 vincent 238:
1.32 db 239: /* We need to set the READONLY flag after we insert the file. */
1.16 vincent 240: if (access(fname, W_OK) && errno != ENOENT)
241: curbp->b_flag |= BFREADONLY;
242: else
243: curbp->b_flag &=~ BFREADONLY;
1.25 deraadt 244:
1.24 deraadt 245: if (startrow)
246: gotoline(FFARG, startrow);
1.16 vincent 247:
1.32 db 248: return (status);
1.1 deraadt 249: }
1.4 millert 250:
1.1 deraadt 251: /*
252: * NB, getting file attributes is done here under control of a flag
253: * rather than in readin, which would be cleaner. I was concerned
254: * that some operating system might require the file to be open
255: * in order to get the information. Similarly for writing.
256: */
257:
258: /*
1.39 ! kjell 259: * Insert a file in the current buffer, after dot. If file is a directory,
! 260: * and 'replacebuf' is TRUE, invoke dired mode, else die with an error.
! 261: * If file is a regular file, set mark at the end of the text inserted;
! 262: * point at the beginning. Return a standard status.
1.31 henning 263: * Print a summary (lines read, error message) out as well. Unless the
1.32 db 264: * NO_BACKUP conditional is set, this routine also does the read end of
1.31 henning 265: * backup processing. The BFBAK flag, if set in a buffer, says that a
266: * backup should be taken. It is set when a file is read in, but not on
267: * a new file. (You don't need to make a backup copy of nothing.)
1.1 deraadt 268: */
1.9 mickey 269: static char *line = NULL;
270: static int linesize = 0;
1.1 deraadt 271:
1.3 millert 272: int
1.39 ! kjell 273: insertfile(char *fname, char *newname, int replacebuf)
1.3 millert 274: {
1.4 millert 275: BUFFER *bp;
276: LINE *lp1, *lp2;
277: LINE *olp; /* line we started at */
278: MGWIN *wp;
1.23 vincent 279: int nbytes, s, nline, siz, x = -1, x2;
1.19 vincent 280: int opos; /* offset we started at */
1.4 millert 281:
1.39 ! kjell 282: if (replacebuf == TRUE)
1.23 vincent 283: x = undo_enable(FALSE);
284:
1.4 millert 285: lp1 = NULL;
1.1 deraadt 286: if (line == NULL) {
287: line = malloc(NLINE);
1.21 vincent 288: if (line == NULL)
289: panic("out of memory");
1.1 deraadt 290: linesize = NLINE;
291: }
1.4 millert 292:
293: /* cheap */
294: bp = curbp;
1.8 art 295: if (newname != NULL)
1.10 vincent 296: (void)strlcpy(bp->b_fname, newname, sizeof bp->b_fname);
1.4 millert 297:
298: /* hard file open */
1.39 ! kjell 299: if ((s = ffropen(fname, (replacebuf == TRUE) ? bp : NULL)) == FIOERR)
1.1 deraadt 300: goto out;
1.4 millert 301: if (s == FIOFNF) {
302: /* file not found */
1.1 deraadt 303: if (newname != NULL)
304: ewprintf("(New file)");
1.3 millert 305: else
306: ewprintf("(File not found)");
1.1 deraadt 307: goto out;
308: }
309: opos = curwp->w_doto;
1.4 millert 310:
311: /* open a new line, at point, and start inserting after it */
1.23 vincent 312: x2 = undo_enable(FALSE);
1.20 vincent 313: (void)lnewline();
1.1 deraadt 314: olp = lback(curwp->w_dotp);
1.3 millert 315: if (olp == curbp->b_linep) {
1.1 deraadt 316: /* if at end of buffer, create a line to insert before */
1.7 art 317: (void)lnewline();
1.1 deraadt 318: curwp->w_dotp = lback(curwp->w_dotp);
319: }
1.23 vincent 320: undo_enable(x2);
1.4 millert 321:
322: /* don't count fake lines at the end */
323: nline = 0;
1.19 vincent 324: siz = 0;
1.3 millert 325: while ((s = ffgetline(line, linesize, &nbytes)) != FIOERR) {
1.1 deraadt 326: doneread:
1.19 vincent 327: siz += nbytes + 1;
1.3 millert 328: switch (s) {
329: case FIOSUC:
330: ++nline;
331: /* and continue */
1.4 millert 332: case FIOEOF:
333: /* the last line of the file */
1.3 millert 334: if ((lp1 = lalloc(nbytes)) == NULL) {
1.4 millert 335: /* keep message on the display */
336: s = FIOERR;
337: goto endoffile;
1.3 millert 338: }
339: bcopy(line, <ext(lp1)[0], nbytes);
340: lp2 = lback(curwp->w_dotp);
341: lp2->l_fp = lp1;
342: lp1->l_fp = curwp->w_dotp;
343: lp1->l_bp = lp2;
344: curwp->w_dotp->l_bp = lp1;
345: if (s == FIOEOF)
346: goto endoffile;
347: break;
1.19 vincent 348: case FIOLONG: {
1.4 millert 349: /* a line too long to fit in our buffer */
1.9 mickey 350: char *cp;
351: int newsize;
1.3 millert 352:
353: newsize = linesize * 2;
354: if (newsize < 0 ||
1.4 millert 355: (cp = malloc((unsigned)newsize)) == NULL) {
1.3 millert 356: ewprintf("Could not allocate %d bytes",
1.4 millert 357: newsize);
358: s = FIOERR;
359: goto endoffile;
1.3 millert 360: }
361: bcopy(line, cp, linesize);
362: free(line);
363: line = cp;
1.9 mickey 364: s = ffgetline(line + linesize, linesize,
1.4 millert 365: &nbytes);
1.3 millert 366: nbytes += linesize;
367: linesize = newsize;
368: if (s == FIOERR)
369: goto endoffile;
370: goto doneread;
371: }
372: default:
373: ewprintf("Unknown code %d reading file", s);
374: s = FIOERR;
375: break;
1.1 deraadt 376: }
377: }
378: endoffile:
1.28 vincent 379: undo_add_insert(olp, opos, siz-1);
1.19 vincent 380:
1.4 millert 381: /* ignore errors */
1.8 art 382: ffclose(NULL);
1.4 millert 383: /* don't zap an error */
384: if (s == FIOEOF) {
1.3 millert 385: if (nline == 1)
386: ewprintf("(Read 1 line)");
387: else
388: ewprintf("(Read %d lines)", nline);
1.1 deraadt 389: }
1.4 millert 390: /* set mark at the end of the text */
1.1 deraadt 391: curwp->w_dotp = curwp->w_markp = lback(curwp->w_dotp);
392: curwp->w_marko = llength(curwp->w_markp);
1.7 art 393: (void)ldelnewline();
1.1 deraadt 394: curwp->w_dotp = olp;
395: curwp->w_doto = opos;
1.3 millert 396: if (olp == curbp->b_linep)
397: curwp->w_dotp = lforw(olp);
1.1 deraadt 398: #ifndef NO_BACKUP
399: if (newname != NULL)
1.3 millert 400: bp->b_flag |= BFCHG | BFBAK; /* Need a backup. */
401: else
402: bp->b_flag |= BFCHG;
1.4 millert 403: #else /* !NO_BACKUP */
1.1 deraadt 404: bp->b_flag |= BFCHG;
1.4 millert 405: #endif /* !NO_BACKUP */
1.3 millert 406: /*
1.32 db 407: * If the insert was at the end of buffer, set lp1 to the end of
1.3 millert 408: * buffer line, and lp2 to the beginning of the newly inserted text.
409: * (Otherwise lp2 is set to NULL.) This is used below to set
410: * pointers in other windows correctly if they are also at the end of
411: * buffer.
1.1 deraadt 412: */
413: lp1 = bp->b_linep;
414: if (curwp->w_markp == lp1) {
415: lp2 = curwp->w_dotp;
416: } else {
1.4 millert 417: /* delete extraneous newline */
1.7 art 418: (void)ldelnewline();
1.1 deraadt 419: out: lp2 = NULL;
420: }
1.3 millert 421: for (wp = wheadp; wp != NULL; wp = wp->w_wndp) {
1.1 deraadt 422: if (wp->w_bufp == curbp) {
1.3 millert 423: wp->w_flag |= WFMODE | WFEDIT;
1.1 deraadt 424: if (wp != curwp && lp2 != NULL) {
1.3 millert 425: if (wp->w_dotp == lp1)
426: wp->w_dotp = lp2;
427: if (wp->w_markp == lp1)
428: wp->w_markp = lp2;
429: if (wp->w_linep == lp1)
430: wp->w_linep = lp2;
1.1 deraadt 431: }
432: }
433: }
1.39 ! kjell 434: undo_enable(x);
1.23 vincent 435:
1.39 ! kjell 436: /* return FALSE if error */
1.32 db 437: return (s != FIOERR);
1.1 deraadt 438: }
439:
440: /*
1.9 mickey 441: * Ask for a file name and write the contents of the current buffer to that
442: * file. Update the remembered file name and clear the buffer changed flag.
1.4 millert 443: * This handling of file names is different from the earlier versions and
1.27 jmc 444: * is more compatible with Gosling EMACS than with ITS EMACS.
1.1 deraadt 445: */
1.3 millert 446: /* ARGSUSED */
447: int
1.20 vincent 448: filewrite(int f, int n)
1.1 deraadt 449: {
1.4 millert 450: int s;
451: char fname[NFILEN];
1.29 vincent 452: char *adjfname, *p, *bufp;
453:
454: if ((bufp = eread("Write file: ", fname, NFILEN,
455: EFNEW | EFCR | EFFILE)) == NULL)
1.32 db 456: return (ABORT);
1.29 vincent 457: else if (bufp[0] == '\0')
1.32 db 458: return (FALSE);
1.1 deraadt 459:
460: adjfname = adjustname(fname);
1.22 vincent 461: if (adjfname == NULL)
462: return (FALSE);
1.1 deraadt 463: /* old attributes are no longer current */
464: bzero(&curbp->b_fi, sizeof(curbp->b_fi));
1.3 millert 465: if ((s = writeout(curbp, adjfname)) == TRUE) {
1.10 vincent 466: (void)strlcpy(curbp->b_fname, adjfname, sizeof curbp->b_fname);
1.26 vincent 467: p = strrchr(curbp->b_fname, '/');
468: if (p)
469: p++;
470: else
471: p = curbp->b_fname;
472: if (curbp->b_bname)
473: free((char *)curbp->b_bname);
474: curbp->b_bname = strdup(p);
1.1 deraadt 475: #ifndef NO_BACKUP
476: curbp->b_flag &= ~(BFBAK | BFCHG);
1.4 millert 477: #else /* !NO_BACKUP */
1.1 deraadt 478: curbp->b_flag &= ~BFCHG;
1.4 millert 479: #endif /* !NO_BACKUP */
1.1 deraadt 480: upmodes(curbp);
481: }
1.32 db 482: return (s);
1.1 deraadt 483: }
484:
485: /*
1.4 millert 486: * Save the contents of the current buffer back into its associated file.
1.1 deraadt 487: */
488: #ifndef NO_BACKUP
489: #ifndef MAKEBACKUP
490: #define MAKEBACKUP TRUE
1.4 millert 491: #endif /* !MAKEBACKUP */
1.9 mickey 492: static int makebackup = MAKEBACKUP;
1.4 millert 493: #endif /* !NO_BACKUP */
1.1 deraadt 494:
1.3 millert 495: /* ARGSUSED */
496: int
1.20 vincent 497: filesave(int f, int n)
1.1 deraadt 498: {
1.32 db 499: return (buffsave(curbp));
1.1 deraadt 500: }
501:
502: /*
1.9 mickey 503: * Save the contents of the buffer argument into its associated file. Do
504: * nothing if there have been no changes (is this a bug, or a feature?).
505: * Error if there is no remembered file name. If this is the first write
1.4 millert 506: * since the read or visit, then a backup copy of the file is made.
1.9 mickey 507: * Allow user to select whether or not to make backup files by looking at
1.4 millert 508: * the value of makebackup.
1.1 deraadt 509: */
1.3 millert 510: int
1.20 vincent 511: buffsave(BUFFER *bp)
1.3 millert 512: {
1.4 millert 513: int s;
1.1 deraadt 514:
1.4 millert 515: /* return, no changes */
516: if ((bp->b_flag & BFCHG) == 0) {
1.1 deraadt 517: ewprintf("(No changes need to be saved)");
1.32 db 518: return (TRUE);
1.1 deraadt 519: }
1.4 millert 520:
521: /* must have a name */
522: if (bp->b_fname[0] == '\0') {
1.1 deraadt 523: ewprintf("No file name");
524: return (FALSE);
525: }
1.4 millert 526:
1.1 deraadt 527: #ifndef NO_BACKUP
1.3 millert 528: if (makebackup && (bp->b_flag & BFBAK)) {
1.1 deraadt 529: s = fbackupfile(bp->b_fname);
1.4 millert 530: /* hard error */
531: if (s == ABORT)
1.32 db 532: return (FALSE);
1.4 millert 533: /* softer error */
1.9 mickey 534: if (s == FALSE &&
1.4 millert 535: (s = eyesno("Backup error, save anyway")) != TRUE)
1.32 db 536: return (s);
1.1 deraadt 537: }
1.4 millert 538: #endif /* !NO_BACKUP */
1.3 millert 539: if ((s = writeout(bp, bp->b_fname)) == TRUE) {
1.1 deraadt 540: #ifndef NO_BACKUP
541: bp->b_flag &= ~(BFCHG | BFBAK);
1.4 millert 542: #else /* !NO_BACKUP */
1.1 deraadt 543: bp->b_flag &= ~BFCHG;
1.4 millert 544: #endif /* !NO_BACKUP */
1.1 deraadt 545: upmodes(bp);
546: }
1.32 db 547: return (s);
1.1 deraadt 548: }
549:
550: #ifndef NO_BACKUP
1.3 millert 551: /*
552: * Since we don't have variables (we probably should) this is a command
553: * processor for changing the value of the make backup flag. If no argument
554: * is given, sets makebackup to true, so backups are made. If an argument is
555: * given, no backup files are made when saving a new version of a file. Only
556: * used when BACKUP is #defined.
1.1 deraadt 557: */
1.3 millert 558: /* ARGSUSED */
559: int
1.20 vincent 560: makebkfile(int f, int n)
1.1 deraadt 561: {
1.3 millert 562: if (f & FFARG)
563: makebackup = n > 0;
564: else
565: makebackup = !makebackup;
1.1 deraadt 566: ewprintf("Backup files %sabled", makebackup ? "en" : "dis");
1.32 db 567: return (TRUE);
1.1 deraadt 568: }
1.4 millert 569: #endif /* !NO_BACKUP */
1.1 deraadt 570:
571: /*
572: * NB: bp is passed to both ffwopen and ffclose because some
573: * attribute information may need to be updated at open time
574: * and others after the close. This is OS-dependent. Note
575: * that the ff routines are assumed to be able to tell whether
576: * the attribute information has been set up in this buffer
577: * or not.
578: */
579:
580: /*
1.9 mickey 581: * This function performs the details of file writing; writing the file
582: * in buffer bp to file fn. Uses the file management routines in the
1.4 millert 583: * "fileio.c" package. Most of the grief is checking of some sort.
1.1 deraadt 584: */
1.3 millert 585: int
1.20 vincent 586: writeout(BUFFER *bp, char *fn)
1.3 millert 587: {
1.4 millert 588: int s;
1.1 deraadt 589:
1.4 millert 590: /* open writes message */
591: if ((s = ffwopen(fn, bp)) != FIOSUC)
1.1 deraadt 592: return (FALSE);
593: s = ffputbuf(bp);
1.4 millert 594: if (s == FIOSUC) {
595: /* no write error */
1.1 deraadt 596: s = ffclose(bp);
1.3 millert 597: if (s == FIOSUC)
1.1 deraadt 598: ewprintf("Wrote %s", fn);
1.4 millert 599: } else
600: /* ignore close error if it is a write error */
1.7 art 601: (void)ffclose(bp);
1.32 db 602: return (s == FIOSUC);
1.1 deraadt 603: }
604:
605: /*
1.4 millert 606: * Tag all windows for bp (all windows if bp == NULL) as needing their
1.1 deraadt 607: * mode line updated.
608: */
1.7 art 609: void
1.20 vincent 610: upmodes(BUFFER *bp)
1.3 millert 611: {
1.4 millert 612: MGWIN *wp;
1.1 deraadt 613:
614: for (wp = wheadp; wp != NULL; wp = wp->w_wndp)
1.3 millert 615: if (bp == NULL || curwp->w_bufp == bp)
616: wp->w_flag |= WFMODE;
1.1 deraadt 617: }
![[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