+++ /dev/null
-/* $OpenBSD: dired.c,v 1.51 2012/03/14 13:56:35 lum Exp $ */
-
-/* This file is in the public domain. */
-
-/* dired module for mg 2a
- * by Robert A. Larson
- */
-
-#include "def.h"
-#include "funmap.h"
-#include "kbd.h"
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/resource.h>
-#include <sys/wait.h>
-
-#include <ctype.h>
-#include <signal.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <libgen.h>
-#include <stdarg.h>
-
-void dired_init(void);
-static int dired(int, int);
-static int d_otherwindow(int, int);
-static int d_undel(int, int);
-static int d_undelbak(int, int);
-static int d_findfile(int, int);
-static int d_ffotherwindow(int, int);
-static int d_expunge(int, int);
-static int d_copy(int, int);
-static int d_del(int, int);
-static int d_rename(int, int);
-static int d_exec(int, struct buffer *, const char *, const char *, ...);
-static int d_shell_command(int, int);
-static int d_create_directory(int, int);
-static int d_makename(struct line *, char *, size_t);
-static int d_warpdot(struct line *, int *);
-static int d_forwpage(int, int);
-static int d_backpage(int, int);
-static int d_forwline(int, int);
-static int d_backline(int, int);
-static void reaper(int);
-
-extern struct keymap_s helpmap, cXmap, metamap;
-
-static PF dirednul[] = {
- setmark, /* ^@ */
- gotobol, /* ^A */
- backchar, /* ^B */
- rescan, /* ^C */
- d_del, /* ^D */
- gotoeol, /* ^E */
- forwchar, /* ^F */
- ctrlg, /* ^G */
- NULL, /* ^H */
-};
-
-static PF diredcl[] = {
- reposition, /* ^L */
- d_findfile, /* ^M */
- d_forwline, /* ^N */
- rescan, /* ^O */
- d_backline, /* ^P */
- rescan, /* ^Q */
- backisearch, /* ^R */
- forwisearch, /* ^S */
- rescan, /* ^T */
- universal_argument, /* ^U */
- d_forwpage, /* ^V */
- rescan, /* ^W */
- NULL /* ^X */
-};
-
-static PF diredcz[] = {
- spawncli, /* ^Z */
- NULL, /* esc */
- rescan, /* ^\ */
- rescan, /* ^] */
- rescan, /* ^^ */
- rescan, /* ^_ */
- d_forwline, /* SP */
- d_shell_command, /* ! */
- rescan, /* " */
- rescan, /* # */
- rescan, /* $ */
- rescan, /* % */
- rescan, /* & */
- rescan, /* ' */
- rescan, /* ( */
- rescan, /* ) */
- rescan, /* * */
- d_create_directory /* + */
-};
-
-static PF diredc[] = {
- d_copy, /* c */
- d_del, /* d */
- d_findfile, /* e */
- d_findfile /* f */
-};
-
-static PF diredn[] = {
- d_forwline, /* n */
- d_ffotherwindow, /* o */
- d_backline, /* p */
- rescan, /* q */
- d_rename, /* r */
- rescan, /* s */
- rescan, /* t */
- d_undel, /* u */
- rescan, /* v */
- rescan, /* w */
- d_expunge /* x */
-};
-
-static PF direddl[] = {
- d_undelbak /* del */
-};
-
-static PF diredbp[] = {
- d_backpage /* v */
-};
-
-static PF dirednull[] = {
- NULL
-};
-
-#ifndef DIRED_XMAPS
-#define NDIRED_XMAPS 0 /* number of extra map sections */
-#endif /* DIRED_XMAPS */
-
-static struct KEYMAPE (1 + IMAPEXT) d_backpagemap = {
- 1,
- 1 + IMAPEXT,
- rescan,
- {
- {
- 'v', 'v', diredbp, NULL
- }
- }
-};
-
-static struct KEYMAPE (7 + NDIRED_XMAPS + IMAPEXT) diredmap = {
- 7 + NDIRED_XMAPS,
- 7 + NDIRED_XMAPS + IMAPEXT,
- rescan,
- {
- {
- CCHR('@'), CCHR('H'), dirednul, (KEYMAP *) & helpmap
- },
- {
- CCHR('L'), CCHR('X'), diredcl, (KEYMAP *) & cXmap
- },
- {
- CCHR('['), CCHR('['), dirednull, (KEYMAP *) &
- d_backpagemap
- },
- {
- CCHR('Z'), '+', diredcz, (KEYMAP *) & metamap
- },
- {
- 'c', 'f', diredc, NULL
- },
- {
- 'n', 'x', diredn, NULL
- },
- {
- CCHR('?'), CCHR('?'), direddl, NULL
- },
-#ifdef DIRED_XMAPS
- DIRED_XMAPS, /* map sections for dired mode keys */
-#endif /* DIRED_XMAPS */
- }
-};
-
-void
-dired_init(void)
-{
- funmap_add(dired, "dired");
- funmap_add(d_undelbak, "dired-backup-unflag");
- funmap_add(d_copy, "dired-copy-file");
- funmap_add(d_expunge, "dired-do-deletions");
- funmap_add(d_findfile, "dired-find-file");
- funmap_add(d_ffotherwindow, "dired-find-file-other-window");
- funmap_add(d_del, "dired-flag-file-deleted");
- funmap_add(d_forwline, "dired-next-line");
- funmap_add(d_otherwindow, "dired-other-window");
- funmap_add(d_backline, "dired-previous-line");
- funmap_add(d_rename, "dired-rename-file");
- funmap_add(d_backpage, "dired-scroll-down");
- funmap_add(d_forwpage, "dired-scroll-up");
- funmap_add(d_undel, "dired-unflag");
- maps_add((KEYMAP *)&diredmap, "dired");
- dobindkey(fundamental_map, "dired", "^Xd");
-}
-
-/* ARGSUSED */
-int
-dired(int f, int n)
-{
- char dname[NFILEN], *bufp, *slash;
- struct buffer *bp;
-
- if (curbp->b_fname && curbp->b_fname[0] != '\0') {
- (void)strlcpy(dname, curbp->b_fname, sizeof(dname));
- if ((slash = strrchr(dname, '/')) != NULL) {
- *(slash + 1) = '\0';
- }
- } else {
- if (getcwd(dname, sizeof(dname)) == NULL)
- dname[0] = '\0';
- }
-
- if ((bufp = eread("Dired: ", dname, NFILEN,
- EFDEF | EFNEW | EFCR)) == NULL)
- return (ABORT);
- if (bufp[0] == '\0')
- return (FALSE);
- if ((bp = dired_(bufp)) == NULL)
- return (FALSE);
-
- curbp = bp;
- return (showbuffer(bp, curwp, WFFULL | WFMODE));
-}
-
-/* ARGSUSED */
-int
-d_otherwindow(int f, int n)
-{
- char dname[NFILEN], *bufp, *slash;
- struct buffer *bp;
- struct mgwin *wp;
-
- if (curbp->b_fname && curbp->b_fname[0] != '\0') {
- (void)strlcpy(dname, curbp->b_fname, sizeof(dname));
- if ((slash = strrchr(dname, '/')) != NULL) {
- *(slash + 1) = '\0';
- }
- } else {
- if (getcwd(dname, sizeof(dname)) == NULL)
- dname[0] = '\0';
- }
-
- if ((bufp = eread("Dired other window: ", dname, NFILEN,
- EFDEF | EFNEW | EFCR)) == NULL)
- return (ABORT);
- else if (bufp[0] == '\0')
- return (FALSE);
- if ((bp = dired_(bufp)) == NULL)
- return (FALSE);
- if ((wp = popbuf(bp, WNONE)) == NULL)
- return (FALSE);
- curbp = bp;
- curwp = wp;
- return (TRUE);
-}
-
-/* ARGSUSED */
-int
-d_del(int f, int n)
-{
- if (n < 0)
- return (FALSE);
- while (n--) {
- if (llength(curwp->w_dotp) > 0)
- lputc(curwp->w_dotp, 0, 'D');
- if (lforw(curwp->w_dotp) != curbp->b_headp)
- curwp->w_dotp = lforw(curwp->w_dotp);
- }
- curwp->w_rflag |= WFEDIT | WFMOVE;
- curwp->w_doto = 0;
- return (TRUE);
-}
-
-/* ARGSUSED */
-int
-d_undel(int f, int n)
-{
- if (n < 0)
- return (d_undelbak(f, -n));
- while (n--) {
- if (llength(curwp->w_dotp) > 0)
- lputc(curwp->w_dotp, 0, ' ');
- if (lforw(curwp->w_dotp) != curbp->b_headp)
- curwp->w_dotp = lforw(curwp->w_dotp);
- }
- curwp->w_rflag |= WFEDIT | WFMOVE;
- curwp->w_doto = 0;
- return (TRUE);
-}
-
-/* ARGSUSED */
-int
-d_undelbak(int f, int n)
-{
- if (n < 0)
- return (d_undel(f, -n));
- while (n--) {
- if (llength(curwp->w_dotp) > 0)
- lputc(curwp->w_dotp, 0, ' ');
- if (lback(curwp->w_dotp) != curbp->b_headp)
- curwp->w_dotp = lback(curwp->w_dotp);
- }
- curwp->w_doto = 0;
- curwp->w_rflag |= WFEDIT | WFMOVE;
- return (TRUE);
-}
-
-/* ARGSUSED */
-int
-d_findfile(int f, int n)
-{
- struct buffer *bp;
- int s;
- char fname[NFILEN];
-
- if ((s = d_makename(curwp->w_dotp, fname, sizeof(fname))) == ABORT)
- return (FALSE);
- if (s == TRUE)
- bp = dired_(fname);
- else
- bp = findbuffer(fname);
- if (bp == NULL)
- return (FALSE);
- curbp = bp;
- if (showbuffer(bp, curwp, WFFULL) != TRUE)
- return (FALSE);
- if (bp->b_fname[0] != 0)
- return (TRUE);
- return (readin(fname));
-}
-
-/* ARGSUSED */
-int
-d_ffotherwindow(int f, int n)
-{
- char fname[NFILEN];
- int s;
- struct buffer *bp;
- struct mgwin *wp;
-
- if ((s = d_makename(curwp->w_dotp, fname, sizeof(fname))) == ABORT)
- return (FALSE);
- if ((bp = (s ? dired_(fname) : findbuffer(fname))) == NULL)
- return (FALSE);
- if ((wp = popbuf(bp, WNONE)) == NULL)
- return (FALSE);
- curbp = bp;
- curwp = wp;
- if (bp->b_fname[0] != 0)
- return (TRUE); /* never true for dired buffers */
- return (readin(fname));
-}
-
-/* ARGSUSED */
-int
-d_expunge(int f, int n)
-{
- struct line *lp, *nlp;
- char fname[NFILEN], sname[NFILEN];
-
- for (lp = bfirstlp(curbp); lp != curbp->b_headp; lp = nlp) {
- nlp = lforw(lp);
- if (llength(lp) && lgetc(lp, 0) == 'D') {
- switch (d_makename(lp, fname, sizeof(fname))) {
- case ABORT:
- ewprintf("Bad line in dired buffer");
- return (FALSE);
- case FALSE:
- if (unlink(fname) < 0) {
- (void)xbasename(sname, fname, NFILEN);
- ewprintf("Could not delete '%s'", sname);
- return (FALSE);
- }
- break;
- case TRUE:
- if (rmdir(fname) < 0) {
- (void)xbasename(sname, fname, NFILEN);
- ewprintf("Could not delete directory "
- "'%s'", sname);
- return (FALSE);
- }
- break;
- }
- lfree(lp);
- curwp->w_bufp->b_lines--;
- curwp->w_rflag |= WFFULL;
- }
- }
- return (TRUE);
-}
-
-/* ARGSUSED */
-int
-d_copy(int f, int n)
-{
- char frname[NFILEN], toname[NFILEN], sname[NFILEN], *bufp;
- int ret;
- size_t off;
- struct buffer *bp;
-
- if (d_makename(curwp->w_dotp, frname, sizeof(frname)) != FALSE) {
- ewprintf("Not a file");
- return (FALSE);
- }
- off = strlcpy(toname, curbp->b_fname, sizeof(toname));
- if (off >= sizeof(toname) - 1) { /* can't happen, really */
- ewprintf("Directory name too long");
- return (FALSE);
- }
- (void)xbasename(sname, frname, NFILEN);
- bufp = eread("Copy %s to: ", toname, sizeof(toname),
- EFDEF | EFNEW | EFCR, sname);
- if (bufp == NULL)
- return (ABORT);
- else if (bufp[0] == '\0')
- return (FALSE);
- ret = (copy(frname, toname) >= 0) ? TRUE : FALSE;
- if (ret != TRUE)
- return (ret);
- bp = dired_(curbp->b_fname);
- return (showbuffer(bp, curwp, WFFULL | WFMODE));
-}
-
-/* ARGSUSED */
-int
-d_rename(int f, int n)
-{
- char frname[NFILEN], toname[NFILEN], *bufp;
- int ret;
- size_t off;
- struct buffer *bp;
- char sname[NFILEN];
-
- if (d_makename(curwp->w_dotp, frname, sizeof(frname)) != FALSE) {
- ewprintf("Not a file");
- return (FALSE);
- }
- off = strlcpy(toname, curbp->b_fname, sizeof(toname));
- if (off >= sizeof(toname) - 1) { /* can't happen, really */
- ewprintf("Directory name too long");
- return (FALSE);
- }
- (void)xbasename(sname, frname, NFILEN);
- bufp = eread("Rename %s to: ", toname,
- sizeof(toname), EFDEF | EFNEW | EFCR, sname);
- if (bufp == NULL)
- return (ABORT);
- else if (bufp[0] == '\0')
- return (FALSE);
- ret = (rename(frname, toname) >= 0) ? TRUE : FALSE;
- if (ret != TRUE)
- return (ret);
- bp = dired_(curbp->b_fname);
- return (showbuffer(bp, curwp, WFFULL | WFMODE));
-}
-
-/* ARGSUSED */
-void
-reaper(int signo __attribute__((unused)))
-{
- int save_errno = errno, status;
-
- while (waitpid(-1, &status, WNOHANG) >= 0)
- ;
- errno = save_errno;
-}
-
-/*
- * Pipe the currently selected file through a shell command.
- */
-/* ARGSUSED */
-int
-d_shell_command(int f, int n)
-{
- char command[512], fname[MAXPATHLEN], *bufp;
- struct buffer *bp;
- struct mgwin *wp;
- char sname[NFILEN];
-
- bp = bfind("*Shell Command Output*", TRUE);
- if (bclear(bp) != TRUE)
- return (ABORT);
-
- if (d_makename(curwp->w_dotp, fname, sizeof(fname)) != FALSE) {
- ewprintf("bad line");
- return (ABORT);
- }
-
- command[0] = '\0';
- (void)xbasename(sname, fname, NFILEN);
- bufp = eread("! on %s: ", command, sizeof(command), EFNEW, sname);
- if (bufp == NULL)
- return (ABORT);
-
- if (d_exec(0, bp, fname, "sh", "-c", command, NULL) != TRUE)
- return (ABORT);
-
- if ((wp = popbuf(bp, WNONE)) == NULL)
- return (ABORT); /* XXX - free the buffer?? */
- curwp = wp;
- curbp = wp->w_bufp;
- return (TRUE);
-}
-
-/*
- * Pipe input file to cmd and insert the command's output in the
- * given buffer. Each line will be prefixed with the given
- * number of spaces.
- */
-static int
-d_exec(int space, struct buffer *bp, const char *input, const char *cmd, ...)
-{
- char buf[BUFSIZ];
- va_list ap;
- struct sigaction olda, newa;
- char **argv = NULL, *cp;
- FILE *fin;
- int fds[2] = { -1, -1 };
- int infd = -1;
- int ret = (ABORT), n;
- pid_t pid;
-
- if (sigaction(SIGCHLD, NULL, &olda) == -1)
- return (ABORT);
-
- /* Find the number of arguments. */
- va_start(ap, cmd);
- for (n = 2; va_arg(ap, char *) != NULL; n++)
- ;
- va_end(ap);
-
- /* Allocate and build the argv. */
- if ((argv = calloc(n, sizeof(*argv))) == NULL) {
- ewprintf("Can't allocate argv : %s", strerror(errno));
- goto out;
- }
-
- n = 1;
- argv[0] = (char *)cmd;
- va_start(ap, cmd);
- while ((argv[n] = va_arg(ap, char *)) != NULL)
- n++;
- va_end(ap);
-
- if (input == NULL)
- input = "/dev/null";
-
- if ((infd = open(input, O_RDONLY)) == -1) {
- ewprintf("Can't open input file : %s", strerror(errno));
- goto out;
- }
-
- if (pipe(fds) == -1) {
- ewprintf("Can't create pipe : %s", strerror(errno));
- goto out;
- }
-
- newa.sa_handler = reaper;
- newa.sa_flags = 0;
- if (sigaction(SIGCHLD, &newa, NULL) == -1)
- goto out;
-
- if ((pid = fork()) == -1) {
- ewprintf("Can't fork");
- goto out;
- }
-
- switch (pid) {
- case 0: /* Child */
- close(fds[0]);
- dup2(infd, STDIN_FILENO);
- dup2(fds[1], STDOUT_FILENO);
- dup2(fds[1], STDERR_FILENO);
- if (execvp(argv[0], argv) == -1)
- ewprintf("Can't exec %s: %s", argv[0], strerror(errno));
- exit(1);
- break;
- default: /* Parent */
- close(infd);
- close(fds[1]);
- infd = fds[1] = -1;
- if ((fin = fdopen(fds[0], "r")) == NULL)
- goto out;
- while (fgets(buf, sizeof(buf), fin) != NULL) {
- cp = strrchr(buf, '\n');
- if (cp == NULL && !feof(fin)) { /* too long a line */
- int c;
- addlinef(bp, "%*s%s...", space, "", buf);
- while ((c = getc(fin)) != EOF && c != '\n')
- ;
- continue;
- } else if (cp)
- *cp = '\0';
- addlinef(bp, "%*s%s", space, "", buf);
- }
- fclose(fin);
- break;
- }
- ret = (TRUE);
-
-out:
- if (sigaction(SIGCHLD, &olda, NULL) == -1)
- ewprintf("Warning, couldn't reset previous signal handler");
- if (fds[0] != -1)
- close(fds[0]);
- if (fds[1] != -1)
- close(fds[1]);
- if (infd != -1)
- close(infd);
- if (argv != NULL)
- free(argv);
- return ret;
-}
-
-/* ARGSUSED */
-int
-d_create_directory(int f, int n)
-{
- char tocreate[MAXPATHLEN], *bufp;
- size_t off;
- struct buffer *bp;
-
- off = strlcpy(tocreate, curbp->b_fname, sizeof(tocreate));
- if (off >= sizeof(tocreate) - 1)
- return (FALSE);
- if ((bufp = eread("Create directory: ", tocreate,
- sizeof(tocreate), EFDEF | EFNEW | EFCR)) == NULL)
- return (ABORT);
- else if (bufp[0] == '\0')
- return (FALSE);
- if (mkdir(tocreate, 0755) == -1) {
- ewprintf("Creating directory: %s, %s", strerror(errno),
- tocreate);
- return (FALSE);
- }
- bp = dired_(curbp->b_fname);
- return (showbuffer(bp, curwp, WFFULL | WFMODE));
-}
-
-static int
-d_makename(struct line *lp, char *fn, size_t len)
-{
- int start, nlen;
- char *namep;
-
- if (d_warpdot(lp, &start) == FALSE)
- return (ABORT);
- namep = &lp->l_text[start];
- nlen = llength(lp) - start;
-
- if (snprintf(fn, len, "%s%.*s", curbp->b_fname, nlen, namep) >= len)
- return (ABORT); /* Name is too long. */
-
- /* Return TRUE if the entry is a directory. */
- return ((lgetc(lp, 2) == 'd') ? TRUE : FALSE);
-}
-
-#define NAME_FIELD 9
-
-static int
-d_warpdot(struct line *dotp, int *doto)
-{
- char *tp = dotp->l_text;
- int off = 0, field = 0, len;
-
- /*
- * Find the byte offset to the (space-delimited) filename
- * field in formatted ls output.
- */
- len = llength(dotp);
- while (off < len) {
- if (tp[off++] == ' ') {
- if (++field == NAME_FIELD) {
- *doto = off;
- return (TRUE);
- }
- /* Skip the space. */
- while (off < len && tp[off] == ' ')
- off++;
- }
- }
- /* We didn't find the field. */
- *doto = 0;
- return (FALSE);
-}
-
-static int
-d_forwpage(int f, int n)
-{
- forwpage(f | FFRAND, n);
- return (d_warpdot(curwp->w_dotp, &curwp->w_doto));
-}
-
-static int
-d_backpage (int f, int n)
-{
- backpage(f | FFRAND, n);
- return (d_warpdot(curwp->w_dotp, &curwp->w_doto));
-}
-
-static int
-d_forwline (int f, int n)
-{
- forwline(f | FFRAND, n);
- return (d_warpdot(curwp->w_dotp, &curwp->w_doto));
-}
-
-static int
-d_backline (int f, int n)
-{
- backline(f | FFRAND, n);
- return (d_warpdot(curwp->w_dotp, &curwp->w_doto));
-}
-
-/*
- * XXX dname needs to have enough place to store an additional '/'.
- */
-struct buffer *
-dired_(char *dname)
-{
- struct buffer *bp;
- int len, i;
-
- if ((fopen(dname,"r")) == NULL) {
- if (errno == EACCES)
- ewprintf("Permission denied");
- return (NULL);
- }
- if ((dname = adjustname(dname, FALSE)) == NULL) {
- ewprintf("Bad directory name");
- return (NULL);
- }
- /* this should not be done, instead adjustname() should get a flag */
- len = strlen(dname);
- if (dname[len - 1] != '/') {
- dname[len++] = '/';
- dname[len] = '\0';
- }
- if ((bp = findbuffer(dname)) == NULL) {
- ewprintf("Could not create buffer");
- return (NULL);
- }
- if (bclear(bp) != TRUE)
- return (NULL);
- bp->b_flag |= BFREADONLY;
-
- if ((d_exec(2, bp, NULL, "ls", "-al", dname, NULL)) != TRUE)
- return (NULL);
-
- /* Find the line with ".." on it. */
- bp->b_dotp = bfirstlp(bp);
- for (i = 0; i < bp->b_lines; i++) {
- bp->b_dotp = lforw(bp->b_dotp);
- if (d_warpdot(bp->b_dotp, &bp->b_doto) == FALSE)
- continue;
- if (strcmp(ltext(bp->b_dotp) + bp->b_doto, "..") == 0)
- break;
- }
-
- /* We want dot on the entry right after "..", if possible. */
- if (++i < bp->b_lines - 2)
- bp->b_dotp = lforw(bp->b_dotp);
- d_warpdot(bp->b_dotp, &bp->b_doto);
-
- (void)strlcpy(bp->b_fname, dname, sizeof(bp->b_fname));
- (void)strlcpy(bp->b_cwd, dname, sizeof(bp->b_cwd));
- if ((bp->b_modes[1] = name_mode("dired")) == NULL) {
- bp->b_modes[0] = name_mode("fundamental");
- ewprintf("Could not find mode dired");
- return (NULL);
- }
- bp->b_nmodes = 1;
- return (bp);
-}
projects / pd_readline / blobdiff