Annotation of src/usr.bin/mg/dired.c, Revision 1.71
1.71 ! bcallah 1: /* $OpenBSD: dired.c,v 1.70 2015/03/19 21:22:15 bcallah Exp $ */
1.6 niklas 2:
1.20 kjell 3: /* This file is in the public domain. */
4:
5: /* dired module for mg 2a
6: * by Robert A. Larson
7: */
1.1 deraadt 8:
1.70 bcallah 9: #include <sys/queue.h>
10: #include <sys/resource.h>
1.12 vincent 11: #include <sys/stat.h>
1.25 deraadt 12: #include <sys/time.h>
1.70 bcallah 13: #include <sys/types.h>
1.12 vincent 14: #include <sys/wait.h>
1.24 kjell 15: #include <ctype.h>
1.54 lum 16: #include <err.h>
1.12 vincent 17: #include <errno.h>
1.70 bcallah 18: #include <fcntl.h>
1.12 vincent 19: #include <libgen.h>
1.70 bcallah 20: #include <limits.h>
21: #include <signal.h>
1.50 lum 22: #include <stdarg.h>
1.70 bcallah 23: #include <stdio.h>
24: #include <stdlib.h>
25: #include <string.h>
26: #include <unistd.h>
27:
28: #include "def.h"
29: #include "funmap.h"
30: #include "kbd.h"
1.1 deraadt 31:
1.24 kjell 32: void dired_init(void);
1.27 kjell 33: static int dired(int, int);
34: static int d_otherwindow(int, int);
35: static int d_undel(int, int);
36: static int d_undelbak(int, int);
37: static int d_findfile(int, int);
38: static int d_ffotherwindow(int, int);
39: static int d_expunge(int, int);
40: static int d_copy(int, int);
41: static int d_del(int, int);
42: static int d_rename(int, int);
1.50 lum 43: static int d_exec(int, struct buffer *, const char *, const char *, ...);
1.27 kjell 44: static int d_shell_command(int, int);
45: static int d_create_directory(int, int);
1.34 kjell 46: static int d_makename(struct line *, char *, size_t);
1.49 lum 47: static int d_warpdot(struct line *, int *);
48: static int d_forwpage(int, int);
49: static int d_backpage(int, int);
50: static int d_forwline(int, int);
51: static int d_backline(int, int);
1.62 lum 52: static int d_killbuffer_cmd(int, int);
1.63 lum 53: static int d_refreshbuffer(int, int);
1.47 lum 54: static void reaper(int);
1.54 lum 55: static struct buffer *refreshbuffer(struct buffer *);
1.1 deraadt 56:
1.23 kjell 57: extern struct keymap_s helpmap, cXmap, metamap;
58:
59: static PF dirednul[] = {
60: setmark, /* ^@ */
61: gotobol, /* ^A */
62: backchar, /* ^B */
63: rescan, /* ^C */
64: d_del, /* ^D */
65: gotoeol, /* ^E */
66: forwchar, /* ^F */
67: ctrlg, /* ^G */
68: NULL, /* ^H */
1.12 vincent 69: };
70:
1.23 kjell 71: static PF diredcl[] = {
72: reposition, /* ^L */
1.15 db 73: d_findfile, /* ^M */
1.49 lum 74: d_forwline, /* ^N */
1.23 kjell 75: rescan, /* ^O */
1.49 lum 76: d_backline, /* ^P */
1.23 kjell 77: rescan, /* ^Q */
78: backisearch, /* ^R */
79: forwisearch, /* ^S */
80: rescan, /* ^T */
81: universal_argument, /* ^U */
1.49 lum 82: d_forwpage, /* ^V */
1.23 kjell 83: rescan, /* ^W */
84: NULL /* ^X */
85: };
86:
87: static PF diredcz[] = {
88: spawncli, /* ^Z */
89: NULL, /* esc */
90: rescan, /* ^\ */
91: rescan, /* ^] */
92: rescan, /* ^^ */
93: rescan, /* ^_ */
1.49 lum 94: d_forwline, /* SP */
1.27 kjell 95: d_shell_command, /* ! */
96: rescan, /* " */
97: rescan, /* # */
98: rescan, /* $ */
99: rescan, /* % */
100: rescan, /* & */
101: rescan, /* ' */
102: rescan, /* ( */
103: rescan, /* ) */
104: rescan, /* * */
105: d_create_directory /* + */
1.23 kjell 106: };
107:
108: static PF diredc[] = {
109: d_copy, /* c */
110: d_del, /* d */
111: d_findfile, /* e */
1.63 lum 112: d_findfile, /* f */
113: d_refreshbuffer /* g */
1.23 kjell 114: };
115:
116: static PF diredn[] = {
1.49 lum 117: d_forwline, /* n */
1.23 kjell 118: d_ffotherwindow, /* o */
1.49 lum 119: d_backline, /* p */
1.62 lum 120: d_killbuffer_cmd, /* q */
1.23 kjell 121: d_rename, /* r */
122: rescan, /* s */
123: rescan, /* t */
124: d_undel, /* u */
125: rescan, /* v */
126: rescan, /* w */
127: d_expunge /* x */
128: };
129:
130: static PF direddl[] = {
131: d_undelbak /* del */
1.9 vincent 132: };
1.13 deraadt 133:
1.49 lum 134: static PF diredbp[] = {
135: d_backpage /* v */
136: };
137:
138: static PF dirednull[] = {
139: NULL
140: };
141:
1.71 ! bcallah 142: static struct KEYMAPE (1) d_backpagemap = {
! 143: 1,
1.49 lum 144: 1,
145: rescan,
146: {
147: {
148: 'v', 'v', diredbp, NULL
149: }
150: }
151: };
152:
1.71 ! bcallah 153: static struct KEYMAPE (7) diredmap = {
! 154: 7,
! 155: 7,
1.9 vincent 156: rescan,
157: {
1.23 kjell 158: {
159: CCHR('@'), CCHR('H'), dirednul, (KEYMAP *) & helpmap
160: },
161: {
162: CCHR('L'), CCHR('X'), diredcl, (KEYMAP *) & cXmap
163: },
164: {
1.49 lum 165: CCHR('['), CCHR('['), dirednull, (KEYMAP *) &
166: d_backpagemap
167: },
168: {
1.27 kjell 169: CCHR('Z'), '+', diredcz, (KEYMAP *) & metamap
1.23 kjell 170: },
171: {
1.63 lum 172: 'c', 'g', diredc, NULL
1.23 kjell 173: },
174: {
175: 'n', 'x', diredn, NULL
176: },
177: {
178: CCHR('?'), CCHR('?'), direddl, NULL
179: },
1.9 vincent 180: }
181: };
182:
1.23 kjell 183: void
184: dired_init(void)
185: {
1.27 kjell 186: funmap_add(dired, "dired");
1.60 lum 187: funmap_add(d_undelbak, "dired-unmark-backward");
1.53 lum 188: funmap_add(d_create_directory, "dired-create-directory");
1.60 lum 189: funmap_add(d_copy, "dired-do-copy");
190: funmap_add(d_expunge, "dired-do-flagged-delete");
1.27 kjell 191: funmap_add(d_findfile, "dired-find-file");
192: funmap_add(d_ffotherwindow, "dired-find-file-other-window");
1.60 lum 193: funmap_add(d_del, "dired-flag-file-deletion");
1.49 lum 194: funmap_add(d_forwline, "dired-next-line");
1.27 kjell 195: funmap_add(d_otherwindow, "dired-other-window");
1.49 lum 196: funmap_add(d_backline, "dired-previous-line");
1.60 lum 197: funmap_add(d_rename, "dired-do-rename");
1.49 lum 198: funmap_add(d_backpage, "dired-scroll-down");
199: funmap_add(d_forwpage, "dired-scroll-up");
1.60 lum 200: funmap_add(d_undel, "dired-unmark");
1.62 lum 201: funmap_add(d_killbuffer_cmd, "quit-window");
1.23 kjell 202: maps_add((KEYMAP *)&diredmap, "dired");
1.27 kjell 203: dobindkey(fundamental_map, "dired", "^Xd");
1.23 kjell 204: }
1.12 vincent 205:
1.5 millert 206: /* ARGSUSED */
207: int
1.10 vincent 208: dired(int f, int n)
1.1 deraadt 209: {
1.33 kjell 210: char dname[NFILEN], *bufp, *slash;
1.31 deraadt 211: struct buffer *bp;
1.1 deraadt 212:
1.69 bcallah 213: if (curbp->b_fname[0] != '\0') {
1.33 kjell 214: (void)strlcpy(dname, curbp->b_fname, sizeof(dname));
215: if ((slash = strrchr(dname, '/')) != NULL) {
1.19 cloder 216: *(slash + 1) = '\0';
217: }
218: } else {
1.33 kjell 219: if (getcwd(dname, sizeof(dname)) == NULL)
220: dname[0] = '\0';
1.19 cloder 221: }
222:
1.33 kjell 223: if ((bufp = eread("Dired: ", dname, NFILEN,
1.21 kjell 224: EFDEF | EFNEW | EFCR)) == NULL)
1.15 db 225: return (ABORT);
1.21 kjell 226: if (bufp[0] == '\0')
227: return (FALSE);
1.14 vincent 228: if ((bp = dired_(bufp)) == NULL)
1.15 db 229: return (FALSE);
1.23 kjell 230:
1.5 millert 231: curbp = bp;
1.37 kjell 232: return (showbuffer(bp, curwp, WFFULL | WFMODE));
1.1 deraadt 233: }
234:
1.5 millert 235: /* ARGSUSED */
236: int
1.10 vincent 237: d_otherwindow(int f, int n)
1.1 deraadt 238: {
1.33 kjell 239: char dname[NFILEN], *bufp, *slash;
1.31 deraadt 240: struct buffer *bp;
241: struct mgwin *wp;
1.5 millert 242:
1.69 bcallah 243: if (curbp->b_fname[0] != '\0') {
1.33 kjell 244: (void)strlcpy(dname, curbp->b_fname, sizeof(dname));
245: if ((slash = strrchr(dname, '/')) != NULL) {
1.23 kjell 246: *(slash + 1) = '\0';
247: }
248: } else {
1.33 kjell 249: if (getcwd(dname, sizeof(dname)) == NULL)
250: dname[0] = '\0';
1.23 kjell 251: }
252:
1.33 kjell 253: if ((bufp = eread("Dired other window: ", dname, NFILEN,
1.21 kjell 254: EFDEF | EFNEW | EFCR)) == NULL)
1.15 db 255: return (ABORT);
1.21 kjell 256: else if (bufp[0] == '\0')
257: return (FALSE);
1.14 vincent 258: if ((bp = dired_(bufp)) == NULL)
1.15 db 259: return (FALSE);
1.45 kjell 260: if ((wp = popbuf(bp, WNONE)) == NULL)
1.15 db 261: return (FALSE);
1.5 millert 262: curbp = bp;
263: curwp = wp;
1.15 db 264: return (TRUE);
1.1 deraadt 265: }
266:
1.5 millert 267: /* ARGSUSED */
268: int
1.10 vincent 269: d_del(int f, int n)
1.1 deraadt 270: {
1.5 millert 271: if (n < 0)
1.15 db 272: return (FALSE);
1.5 millert 273: while (n--) {
274: if (llength(curwp->w_dotp) > 0)
275: lputc(curwp->w_dotp, 0, 'D');
1.40 kjell 276: if (lforw(curwp->w_dotp) != curbp->b_headp)
1.5 millert 277: curwp->w_dotp = lforw(curwp->w_dotp);
278: }
1.44 kjell 279: curwp->w_rflag |= WFEDIT | WFMOVE;
1.56 lum 280: return (d_warpdot(curwp->w_dotp, &curwp->w_doto));
1.1 deraadt 281: }
282:
1.5 millert 283: /* ARGSUSED */
284: int
1.10 vincent 285: d_undel(int f, int n)
1.1 deraadt 286: {
1.5 millert 287: if (n < 0)
1.15 db 288: return (d_undelbak(f, -n));
1.5 millert 289: while (n--) {
290: if (llength(curwp->w_dotp) > 0)
291: lputc(curwp->w_dotp, 0, ' ');
1.40 kjell 292: if (lforw(curwp->w_dotp) != curbp->b_headp)
1.5 millert 293: curwp->w_dotp = lforw(curwp->w_dotp);
294: }
1.44 kjell 295: curwp->w_rflag |= WFEDIT | WFMOVE;
1.56 lum 296: return (d_warpdot(curwp->w_dotp, &curwp->w_doto));
1.1 deraadt 297: }
298:
1.5 millert 299: /* ARGSUSED */
300: int
1.10 vincent 301: d_undelbak(int f, int n)
1.1 deraadt 302: {
1.5 millert 303: if (n < 0)
1.15 db 304: return (d_undel(f, -n));
1.5 millert 305: while (n--) {
1.64 lum 306: if (lback(curwp->w_dotp) != curbp->b_headp)
307: curwp->w_dotp = lback(curwp->w_dotp);
1.5 millert 308: if (llength(curwp->w_dotp) > 0)
309: lputc(curwp->w_dotp, 0, ' ');
310: }
1.44 kjell 311: curwp->w_rflag |= WFEDIT | WFMOVE;
1.56 lum 312: return (d_warpdot(curwp->w_dotp, &curwp->w_doto));
1.1 deraadt 313: }
314:
1.5 millert 315: /* ARGSUSED */
316: int
1.10 vincent 317: d_findfile(int f, int n)
1.1 deraadt 318: {
1.31 deraadt 319: struct buffer *bp;
320: int s;
321: char fname[NFILEN];
1.5 millert 322:
1.15 db 323: if ((s = d_makename(curwp->w_dotp, fname, sizeof(fname))) == ABORT)
324: return (FALSE);
1.12 vincent 325: if (s == TRUE)
326: bp = dired_(fname);
327: else
328: bp = findbuffer(fname);
329: if (bp == NULL)
1.15 db 330: return (FALSE);
1.5 millert 331: curbp = bp;
1.37 kjell 332: if (showbuffer(bp, curwp, WFFULL) != TRUE)
1.15 db 333: return (FALSE);
1.5 millert 334: if (bp->b_fname[0] != 0)
1.15 db 335: return (TRUE);
336: return (readin(fname));
1.1 deraadt 337: }
338:
1.5 millert 339: /* ARGSUSED */
340: int
1.10 vincent 341: d_ffotherwindow(int f, int n)
1.1 deraadt 342: {
1.31 deraadt 343: char fname[NFILEN];
344: int s;
345: struct buffer *bp;
346: struct mgwin *wp;
1.5 millert 347:
1.15 db 348: if ((s = d_makename(curwp->w_dotp, fname, sizeof(fname))) == ABORT)
349: return (FALSE);
1.5 millert 350: if ((bp = (s ? dired_(fname) : findbuffer(fname))) == NULL)
1.15 db 351: return (FALSE);
1.45 kjell 352: if ((wp = popbuf(bp, WNONE)) == NULL)
1.15 db 353: return (FALSE);
1.5 millert 354: curbp = bp;
355: curwp = wp;
356: if (bp->b_fname[0] != 0)
1.15 db 357: return (TRUE); /* never true for dired buffers */
358: return (readin(fname));
1.1 deraadt 359: }
360:
1.5 millert 361: /* ARGSUSED */
362: int
1.10 vincent 363: d_expunge(int f, int n)
1.1 deraadt 364: {
1.31 deraadt 365: struct line *lp, *nlp;
1.48 kjell 366: char fname[NFILEN], sname[NFILEN];
1.5 millert 367:
1.41 kjell 368: for (lp = bfirstlp(curbp); lp != curbp->b_headp; lp = nlp) {
1.5 millert 369: nlp = lforw(lp);
370: if (llength(lp) && lgetc(lp, 0) == 'D') {
1.15 db 371: switch (d_makename(lp, fname, sizeof(fname))) {
1.5 millert 372: case ABORT:
1.66 lum 373: dobeep();
1.5 millert 374: ewprintf("Bad line in dired buffer");
1.15 db 375: return (FALSE);
1.5 millert 376: case FALSE:
377: if (unlink(fname) < 0) {
1.48 kjell 378: (void)xbasename(sname, fname, NFILEN);
1.66 lum 379: dobeep();
1.48 kjell 380: ewprintf("Could not delete '%s'", sname);
1.15 db 381: return (FALSE);
1.5 millert 382: }
383: break;
384: case TRUE:
385: if (rmdir(fname) < 0) {
1.48 kjell 386: (void)xbasename(sname, fname, NFILEN);
1.66 lum 387: dobeep();
1.48 kjell 388: ewprintf("Could not delete directory "
389: "'%s'", sname);
1.15 db 390: return (FALSE);
1.5 millert 391: }
392: break;
393: }
394: lfree(lp);
1.39 kjell 395: curwp->w_bufp->b_lines--;
1.44 kjell 396: curwp->w_rflag |= WFFULL;
1.5 millert 397: }
1.1 deraadt 398: }
1.15 db 399: return (TRUE);
1.1 deraadt 400: }
401:
1.5 millert 402: /* ARGSUSED */
403: int
1.10 vincent 404: d_copy(int f, int n)
1.1 deraadt 405: {
1.59 lum 406: char frname[NFILEN], toname[NFILEN], sname[NFILEN];
407: char *topath, *bufp;
408: int ret;
409: size_t off;
410: struct buffer *bp;
1.1 deraadt 411:
1.15 db 412: if (d_makename(curwp->w_dotp, frname, sizeof(frname)) != FALSE) {
1.66 lum 413: dobeep();
1.5 millert 414: ewprintf("Not a file");
1.15 db 415: return (FALSE);
1.5 millert 416: }
1.15 db 417: off = strlcpy(toname, curbp->b_fname, sizeof(toname));
418: if (off >= sizeof(toname) - 1) { /* can't happen, really */
1.66 lum 419: dobeep();
1.18 cloder 420: ewprintf("Directory name too long");
1.12 vincent 421: return (FALSE);
422: }
1.48 kjell 423: (void)xbasename(sname, frname, NFILEN);
424: bufp = eread("Copy %s to: ", toname, sizeof(toname),
425: EFDEF | EFNEW | EFCR, sname);
426: if (bufp == NULL)
1.15 db 427: return (ABORT);
1.14 vincent 428: else if (bufp[0] == '\0')
1.17 otto 429: return (FALSE);
1.59 lum 430:
431: topath = adjustname(toname, TRUE);
432: ret = (copy(frname, topath) >= 0) ? TRUE : FALSE;
1.33 kjell 433: if (ret != TRUE)
434: return (ret);
1.54 lum 435: if ((bp = refreshbuffer(curbp)) == NULL)
436: return (FALSE);
1.37 kjell 437: return (showbuffer(bp, curwp, WFFULL | WFMODE));
1.1 deraadt 438: }
439:
1.5 millert 440: /* ARGSUSED */
441: int
1.10 vincent 442: d_rename(int f, int n)
1.1 deraadt 443: {
1.59 lum 444: char frname[NFILEN], toname[NFILEN];
445: char *topath, *bufp;
1.33 kjell 446: int ret;
1.31 deraadt 447: size_t off;
448: struct buffer *bp;
1.48 kjell 449: char sname[NFILEN];
1.1 deraadt 450:
1.15 db 451: if (d_makename(curwp->w_dotp, frname, sizeof(frname)) != FALSE) {
1.66 lum 452: dobeep();
1.5 millert 453: ewprintf("Not a file");
1.15 db 454: return (FALSE);
1.5 millert 455: }
1.15 db 456: off = strlcpy(toname, curbp->b_fname, sizeof(toname));
457: if (off >= sizeof(toname) - 1) { /* can't happen, really */
1.66 lum 458: dobeep();
1.18 cloder 459: ewprintf("Directory name too long");
1.12 vincent 460: return (FALSE);
461: }
1.48 kjell 462: (void)xbasename(sname, frname, NFILEN);
463: bufp = eread("Rename %s to: ", toname,
464: sizeof(toname), EFDEF | EFNEW | EFCR, sname);
465: if (bufp == NULL)
1.15 db 466: return (ABORT);
1.14 vincent 467: else if (bufp[0] == '\0')
1.15 db 468: return (FALSE);
1.59 lum 469:
470: topath = adjustname(toname, TRUE);
471: ret = (rename(frname, topath) >= 0) ? TRUE : FALSE;
1.33 kjell 472: if (ret != TRUE)
473: return (ret);
1.54 lum 474: if ((bp = refreshbuffer(curbp)) == NULL)
475: return (FALSE);
1.37 kjell 476: return (showbuffer(bp, curwp, WFFULL | WFMODE));
1.1 deraadt 477: }
1.12 vincent 478:
1.31 deraadt 479: /* ARGSUSED */
1.12 vincent 480: void
481: reaper(int signo __attribute__((unused)))
482: {
1.22 deraadt 483: int save_errno = errno, status;
1.12 vincent 484:
1.25 deraadt 485: while (waitpid(-1, &status, WNOHANG) >= 0)
1.12 vincent 486: ;
1.22 deraadt 487: errno = save_errno;
1.12 vincent 488: }
489:
490: /*
491: * Pipe the currently selected file through a shell command.
492: */
1.26 kjell 493: /* ARGSUSED */
1.12 vincent 494: int
495: d_shell_command(int f, int n)
496: {
1.68 guenther 497: char command[512], fname[PATH_MAX], *bufp;
1.31 deraadt 498: struct buffer *bp;
499: struct mgwin *wp;
1.50 lum 500: char sname[NFILEN];
1.12 vincent 501:
502: bp = bfind("*Shell Command Output*", TRUE);
503: if (bclear(bp) != TRUE)
504: return (ABORT);
505:
1.15 db 506: if (d_makename(curwp->w_dotp, fname, sizeof(fname)) != FALSE) {
1.66 lum 507: dobeep();
1.12 vincent 508: ewprintf("bad line");
509: return (ABORT);
510: }
511:
512: command[0] = '\0';
1.48 kjell 513: (void)xbasename(sname, fname, NFILEN);
514: bufp = eread("! on %s: ", command, sizeof(command), EFNEW, sname);
515: if (bufp == NULL)
1.12 vincent 516: return (ABORT);
1.50 lum 517:
518: if (d_exec(0, bp, fname, "sh", "-c", command, NULL) != TRUE)
519: return (ABORT);
520:
521: if ((wp = popbuf(bp, WNONE)) == NULL)
522: return (ABORT); /* XXX - free the buffer?? */
523: curwp = wp;
524: curbp = wp->w_bufp;
525: return (TRUE);
526: }
527:
528: /*
529: * Pipe input file to cmd and insert the command's output in the
530: * given buffer. Each line will be prefixed with the given
531: * number of spaces.
532: */
533: static int
534: d_exec(int space, struct buffer *bp, const char *input, const char *cmd, ...)
535: {
536: char buf[BUFSIZ];
537: va_list ap;
538: struct sigaction olda, newa;
539: char **argv = NULL, *cp;
540: FILE *fin;
541: int fds[2] = { -1, -1 };
542: int infd = -1;
543: int ret = (ABORT), n;
544: pid_t pid;
545:
546: if (sigaction(SIGCHLD, NULL, &olda) == -1)
547: return (ABORT);
548:
549: /* Find the number of arguments. */
550: va_start(ap, cmd);
551: for (n = 2; va_arg(ap, char *) != NULL; n++)
552: ;
553: va_end(ap);
554:
555: /* Allocate and build the argv. */
556: if ((argv = calloc(n, sizeof(*argv))) == NULL) {
1.66 lum 557: dobeep();
1.50 lum 558: ewprintf("Can't allocate argv : %s", strerror(errno));
559: goto out;
560: }
561:
562: n = 1;
563: argv[0] = (char *)cmd;
564: va_start(ap, cmd);
565: while ((argv[n] = va_arg(ap, char *)) != NULL)
566: n++;
567: va_end(ap);
568:
569: if (input == NULL)
570: input = "/dev/null";
571:
572: if ((infd = open(input, O_RDONLY)) == -1) {
1.66 lum 573: dobeep();
1.12 vincent 574: ewprintf("Can't open input file : %s", strerror(errno));
1.50 lum 575: goto out;
1.12 vincent 576: }
1.50 lum 577:
1.12 vincent 578: if (pipe(fds) == -1) {
1.66 lum 579: dobeep();
1.12 vincent 580: ewprintf("Can't create pipe : %s", strerror(errno));
1.50 lum 581: goto out;
1.12 vincent 582: }
583:
584: newa.sa_handler = reaper;
585: newa.sa_flags = 0;
1.50 lum 586: if (sigaction(SIGCHLD, &newa, NULL) == -1)
587: goto out;
588:
589: if ((pid = fork()) == -1) {
1.66 lum 590: dobeep();
1.50 lum 591: ewprintf("Can't fork");
592: goto out;
1.12 vincent 593: }
1.50 lum 594:
1.12 vincent 595: switch (pid) {
1.50 lum 596: case 0: /* Child */
1.12 vincent 597: close(fds[0]);
598: dup2(infd, STDIN_FILENO);
599: dup2(fds[1], STDOUT_FILENO);
600: dup2(fds[1], STDERR_FILENO);
1.50 lum 601: if (execvp(argv[0], argv) == -1)
602: ewprintf("Can't exec %s: %s", argv[0], strerror(errno));
1.12 vincent 603: exit(1);
1.29 deraadt 604: break;
1.50 lum 605: default: /* Parent */
1.12 vincent 606: close(infd);
607: close(fds[1]);
1.50 lum 608: infd = fds[1] = -1;
609: if ((fin = fdopen(fds[0], "r")) == NULL)
610: goto out;
1.15 db 611: while (fgets(buf, sizeof(buf), fin) != NULL) {
1.12 vincent 612: cp = strrchr(buf, '\n');
613: if (cp == NULL && !feof(fin)) { /* too long a line */
614: int c;
1.50 lum 615: addlinef(bp, "%*s%s...", space, "", buf);
1.12 vincent 616: while ((c = getc(fin)) != EOF && c != '\n')
617: ;
618: continue;
619: } else if (cp)
620: *cp = '\0';
1.50 lum 621: addlinef(bp, "%*s%s", space, "", buf);
1.12 vincent 622: }
623: fclose(fin);
624: break;
625: }
1.50 lum 626: ret = (TRUE);
627:
628: out:
1.12 vincent 629: if (sigaction(SIGCHLD, &olda, NULL) == -1)
630: ewprintf("Warning, couldn't reset previous signal handler");
1.50 lum 631: if (fds[0] != -1)
632: close(fds[0]);
633: if (fds[1] != -1)
634: close(fds[1]);
635: if (infd != -1)
636: close(infd);
637: if (argv != NULL)
638: free(argv);
639: return ret;
1.12 vincent 640: }
641:
1.26 kjell 642: /* ARGSUSED */
1.12 vincent 643: int
644: d_create_directory(int f, int n)
645: {
1.57 lum 646: int ret;
1.31 deraadt 647: struct buffer *bp;
1.12 vincent 648:
1.67 lum 649: ret = ask_makedir();
1.57 lum 650: if (ret != TRUE)
651: return(ret);
652:
1.54 lum 653: if ((bp = refreshbuffer(curbp)) == NULL)
654: return (FALSE);
1.57 lum 655:
1.37 kjell 656: return (showbuffer(bp, curwp, WFFULL | WFMODE));
1.62 lum 657: }
658:
659: /* ARGSUSED */
660: int
661: d_killbuffer_cmd(int f, int n)
662: {
663: return(killbuffer_cmd(FFRAND, 0));
1.63 lum 664: }
665:
666: int
667: d_refreshbuffer(int f, int n)
668: {
669: struct buffer *bp;
670:
671: if ((bp = refreshbuffer(curbp)) == NULL)
672: return (FALSE);
673:
674: return (showbuffer(bp, curwp, WFFULL | WFMODE));
1.54 lum 675: }
676:
677: struct buffer *
678: refreshbuffer(struct buffer *bp)
679: {
680: char *tmp;
681:
682: tmp = strdup(bp->b_fname);
1.55 lum 683: if (tmp == NULL) {
1.66 lum 684: dobeep();
1.55 lum 685: ewprintf("Out of memory");
1.61 lum 686: return (NULL);
1.55 lum 687: }
1.54 lum 688:
689: killbuffer(bp);
690:
691: /* dired_() uses findbuffer() to create new buffer */
692: if ((bp = dired_(tmp)) == NULL) {
693: free(tmp);
694: return (NULL);
695: }
696: free(tmp);
697: curbp = bp;
698:
699: return (bp);
1.12 vincent 700: }
1.24 kjell 701:
702: static int
1.34 kjell 703: d_makename(struct line *lp, char *fn, size_t len)
1.24 kjell 704: {
1.50 lum 705: int start, nlen;
706: char *namep;
1.24 kjell 707:
1.50 lum 708: if (d_warpdot(lp, &start) == FALSE)
1.24 kjell 709: return (ABORT);
1.50 lum 710: namep = &lp->l_text[start];
711: nlen = llength(lp) - start;
712:
713: if (snprintf(fn, len, "%s%.*s", curbp->b_fname, nlen, namep) >= len)
714: return (ABORT); /* Name is too long. */
715:
716: /* Return TRUE if the entry is a directory. */
1.24 kjell 717: return ((lgetc(lp, 2) == 'd') ? TRUE : FALSE);
718: }
719:
1.50 lum 720: #define NAME_FIELD 9
721:
1.49 lum 722: static int
723: d_warpdot(struct line *dotp, int *doto)
724: {
725: char *tp = dotp->l_text;
726: int off = 0, field = 0, len;
727:
728: /*
729: * Find the byte offset to the (space-delimited) filename
730: * field in formatted ls output.
731: */
732: len = llength(dotp);
733: while (off < len) {
734: if (tp[off++] == ' ') {
1.50 lum 735: if (++field == NAME_FIELD) {
736: *doto = off;
737: return (TRUE);
738: }
1.49 lum 739: /* Skip the space. */
740: while (off < len && tp[off] == ' ')
741: off++;
742: }
743: }
1.50 lum 744: /* We didn't find the field. */
745: *doto = 0;
746: return (FALSE);
1.49 lum 747: }
748:
749: static int
750: d_forwpage(int f, int n)
751: {
752: forwpage(f | FFRAND, n);
753: return (d_warpdot(curwp->w_dotp, &curwp->w_doto));
754: }
755:
756: static int
757: d_backpage (int f, int n)
758: {
759: backpage(f | FFRAND, n);
760: return (d_warpdot(curwp->w_dotp, &curwp->w_doto));
761: }
762:
763: static int
764: d_forwline (int f, int n)
765: {
766: forwline(f | FFRAND, n);
767: return (d_warpdot(curwp->w_dotp, &curwp->w_doto));
768: }
769:
770: static int
771: d_backline (int f, int n)
772: {
773: backline(f | FFRAND, n);
774: return (d_warpdot(curwp->w_dotp, &curwp->w_doto));
775: }
776:
1.24 kjell 777: /*
1.33 kjell 778: * XXX dname needs to have enough place to store an additional '/'.
1.24 kjell 779: */
1.31 deraadt 780: struct buffer *
1.33 kjell 781: dired_(char *dname)
1.24 kjell 782: {
1.31 deraadt 783: struct buffer *bp;
1.52 haesbaer 784: int i;
785: size_t len;
1.46 kjell 786:
1.38 jason 787: if ((dname = adjustname(dname, FALSE)) == NULL) {
1.66 lum 788: dobeep();
1.24 kjell 789: ewprintf("Bad directory name");
790: return (NULL);
791: }
792: /* this should not be done, instead adjustname() should get a flag */
1.33 kjell 793: len = strlen(dname);
794: if (dname[len - 1] != '/') {
795: dname[len++] = '/';
796: dname[len] = '\0';
1.58 lum 797: }
798: if ((access(dname, R_OK | X_OK)) == -1) {
1.66 lum 799: if (errno == EACCES) {
800: dobeep();
1.58 lum 801: ewprintf("Permission denied");
1.66 lum 802: }
1.58 lum 803: return (NULL);
1.24 kjell 804: }
1.33 kjell 805: if ((bp = findbuffer(dname)) == NULL) {
1.66 lum 806: dobeep();
1.24 kjell 807: ewprintf("Could not create buffer");
808: return (NULL);
809: }
810: if (bclear(bp) != TRUE)
811: return (NULL);
1.65 lum 812: bp->b_flag |= BFREADONLY | BFIGNDIRTY;
1.50 lum 813:
814: if ((d_exec(2, bp, NULL, "ls", "-al", dname, NULL)) != TRUE)
1.24 kjell 815: return (NULL);
1.49 lum 816:
817: /* Find the line with ".." on it. */
1.41 kjell 818: bp->b_dotp = bfirstlp(bp);
1.49 lum 819: for (i = 0; i < bp->b_lines; i++) {
820: bp->b_dotp = lforw(bp->b_dotp);
1.50 lum 821: if (d_warpdot(bp->b_dotp, &bp->b_doto) == FALSE)
1.49 lum 822: continue;
823: if (strcmp(ltext(bp->b_dotp) + bp->b_doto, "..") == 0)
824: break;
825: }
826:
827: /* We want dot on the entry right after "..", if possible. */
828: if (++i < bp->b_lines - 2)
829: bp->b_dotp = lforw(bp->b_dotp);
830: d_warpdot(bp->b_dotp, &bp->b_doto);
831:
1.36 kjell 832: (void)strlcpy(bp->b_fname, dname, sizeof(bp->b_fname));
833: (void)strlcpy(bp->b_cwd, dname, sizeof(bp->b_cwd));
1.24 kjell 834: if ((bp->b_modes[1] = name_mode("dired")) == NULL) {
835: bp->b_modes[0] = name_mode("fundamental");
1.66 lum 836: dobeep();
1.24 kjell 837: ewprintf("Could not find mode dired");
838: return (NULL);
839: }
840: bp->b_nmodes = 1;
841: return (bp);
842: }
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