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Diffstat (limited to 'src/kmk/kmkbuiltin/mv.c')
-rw-r--r--src/kmk/kmkbuiltin/mv.c529
1 files changed, 529 insertions, 0 deletions
diff --git a/src/kmk/kmkbuiltin/mv.c b/src/kmk/kmkbuiltin/mv.c
new file mode 100644
index 0000000..7db962c
--- /dev/null
+++ b/src/kmk/kmkbuiltin/mv.c
@@ -0,0 +1,529 @@
+/*-
+ * Copyright (c) 1989, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ken Smith of The State University of New York at Buffalo.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if 0
+#ifndef lint
+static char const copyright[] =
+"@(#) Copyright (c) 1989, 1993, 1994\n\
+ The Regents of the University of California. All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)mv.c 8.2 (Berkeley) 4/2/94";
+#endif /* not lint */
+#endif
+#if 0
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/bin/mv/mv.c,v 1.46 2005/09/05 04:36:08 csjp Exp $");
+#endif
+
+
+/*********************************************************************************************************************************
+* Header Files *
+*********************************************************************************************************************************/
+#define FAKES_NO_GETOPT_H /* bird */
+#include "config.h"
+#include <sys/types.h>
+#ifndef _MSC_VER
+# ifdef CROSS_DEVICE_MOVE
+# include <sys/acl.h>
+# endif
+# include <sys/param.h>
+# include <sys/time.h>
+# include <sys/wait.h>
+# if !defined(__HAIKU__) && !defined(__gnu_hurd__)
+# include <sys/mount.h>
+# endif
+#endif
+#include <sys/stat.h>
+
+#include "err.h"
+#include <errno.h>
+#include <fcntl.h>
+#include <grp.h>
+#include <limits.h>
+#include <paths.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifndef __HAIKU__
+# include <sysexits.h>
+#endif
+#include <unistd.h>
+#include "getopt_r.h"
+#ifdef __sun__
+# include "solfakes.h"
+#endif
+#ifdef __HAIKU__
+# include "haikufakes.h"
+#endif
+#ifdef _MSC_VER
+# include "mscfakes.h"
+#endif
+#include "kmkbuiltin.h"
+
+
+/*********************************************************************************************************************************
+* Structures and Typedefs *
+*********************************************************************************************************************************/
+typedef struct MVINSTANCE
+{
+ PKMKBUILTINCTX pCtx;
+ int fflg, iflg, nflg, vflg;
+} MVINSTANCE;
+typedef MVINSTANCE *PMVINSTANCE;
+
+
+/*********************************************************************************************************************************
+* Global Variables *
+*********************************************************************************************************************************/
+static struct option long_options[] =
+{
+ { "help", no_argument, 0, 261 },
+ { "version", no_argument, 0, 262 },
+ { 0, 0, 0, 0 },
+};
+
+
+/*********************************************************************************************************************************
+* Internal Functions *
+*********************************************************************************************************************************/
+extern void bsd_strmode(mode_t mode, char *p); /* strmode.c */
+
+static int do_move(PMVINSTANCE, char *, char *);
+#if 0 // def CROSS_DEVICE_MOVE
+static int fastcopy(char *, char *, struct stat *);
+static int copy(char *, char *);
+#endif
+static int usage(PKMKBUILTINCTX, int);
+
+
+int
+kmk_builtin_mv(int argc, char **argv, char **envp, PKMKBUILTINCTX pCtx)
+{
+ MVINSTANCE This;
+ struct getopt_state_r gos;
+ size_t baselen, len;
+ int rval;
+ char *p, *endp;
+ struct stat sb;
+ int ch;
+ char path[PATH_MAX];
+
+ /* Initialize instance. */
+ This.pCtx = pCtx;
+ This.fflg = 0;
+ This.iflg = 0;
+ This.nflg = 0;
+ This.vflg = 0;
+
+ getopt_initialize_r(&gos, argc, argv, "finv", long_options, envp, pCtx);
+ while ((ch = getopt_long_r(&gos, NULL)) != -1)
+ switch (ch) {
+ case 'i':
+ This.iflg = 1;
+ This.fflg = This.nflg = 0;
+ break;
+ case 'f':
+ This.fflg = 1;
+ This.iflg = This.nflg = 0;
+ break;
+ case 'n':
+ This.nflg = 1;
+ This.fflg = This.iflg = 0;
+ break;
+ case 'v':
+ This.vflg = 1;
+ break;
+ case 261:
+ usage(pCtx, 0);
+ return 0;
+ case 262:
+ return kbuild_version(argv[0]);
+ default:
+ return usage(pCtx, 1);
+ }
+ argc -= gos.optind;
+ argv += gos.optind;
+
+ if (argc < 2)
+ return usage(pCtx, 1);
+
+ /*
+ * If the stat on the target fails or the target isn't a directory,
+ * try the move. More than 2 arguments is an error in this case.
+ */
+ if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) {
+ if (argc > 2)
+ return usage(pCtx, 1);
+ return do_move(&This, argv[0], argv[1]);
+ }
+
+ /* It's a directory, move each file into it. */
+ baselen = strlen(argv[argc - 1]);
+ if (baselen > sizeof(path) - 1)
+ return errx(pCtx, 1, "%s: destination pathname too long", *argv);
+ memcpy(path, argv[argc - 1], baselen);
+ endp = &path[baselen];
+ *endp = '\0';
+#if defined(_MSC_VER) || defined(__EMX__)
+ if (!baselen || (*(endp - 1) != '/' && *(endp - 1) != '\\' && *(endp - 1) != ':')) {
+#else
+ if (!baselen || *(endp - 1) != '/') {
+#endif
+ *endp++ = '/';
+ ++baselen;
+ }
+ for (rval = 0; --argc; ++argv) {
+ /*
+ * Find the last component of the source pathname. It
+ * may have trailing slashes.
+ */
+ p = *argv + strlen(*argv);
+#if defined(_MSC_VER) || defined(__EMX__)
+ while (p != *argv && (p[-1] == '/' || p[-1] == '\\'))
+ --p;
+ while (p != *argv && p[-1] != '/' && p[-1] != '/' && p[-1] != ':')
+ --p;
+#else
+ while (p != *argv && p[-1] == '/')
+ --p;
+ while (p != *argv && p[-1] != '/')
+ --p;
+#endif
+
+ if ((baselen + (len = strlen(p))) >= PATH_MAX) {
+ warnx(pCtx, "%s: destination pathname too long", *argv);
+ rval = 1;
+ } else {
+ memmove(endp, p, (size_t)len + 1);
+ if (do_move(&This, *argv, path))
+ rval = 1;
+ }
+ }
+ return rval;
+}
+
+#ifdef KMK_BUILTIN_STANDALONE
+int main(int argc, char **argv, char **envp)
+{
+ KMKBUILTINCTX Ctx = { "kmk_mv", NULL };
+ return kmk_builtin_mv(argc, argv, envp, &Ctx);
+}
+#endif
+
+static int
+do_move(PMVINSTANCE pThis, char *from, char *to)
+{
+ struct stat sb;
+ int ask, ch, first;
+ char modep[15];
+
+ /*
+ * Check access. If interactive and file exists, ask user if it
+ * should be replaced. Otherwise if file exists but isn't writable
+ * make sure the user wants to clobber it.
+ */
+ if (!pThis->fflg && !access(to, F_OK)) {
+
+ /* prompt only if source exist */
+ if (lstat(from, &sb) == -1) {
+ warn(pThis->pCtx, "%s", from);
+ return (1);
+ }
+
+#define YESNO "(y/n [n]) "
+ ask = 0;
+ if (pThis->nflg) {
+ if (pThis->vflg)
+ kmk_builtin_ctx_printf(pThis->pCtx, 0, "%s not overwritten\n", to);
+ return (0);
+ } else if (pThis->iflg) {
+ (void)fprintf(stderr, "overwrite %s? %s", to, YESNO);
+ ask = 1;
+ } else if (access(to, W_OK) && !stat(to, &sb)) {
+ bsd_strmode(sb.st_mode, modep);
+#if 0 /* probably not thread safe, also BSDism. */
+ (void)fprintf(stderr, "override %s%s%s/%s for %s? %s",
+ modep + 1, modep[9] == ' ' ? "" : " ",
+ user_from_uid((unsigned long)sb.st_uid, 0),
+ group_from_gid((unsigned long)sb.st_gid, 0), to, YESNO);
+#else
+ (void)fprintf(stderr, "override %s%s%lu/%lu for %s? %s",
+ modep + 1, modep[9] == ' ' ? "" : " ",
+ (unsigned long)sb.st_uid, (unsigned long)sb.st_gid,
+ to, YESNO);
+#endif
+ ask = 1;
+ }
+ if (ask) {
+ fflush(stderr);
+ first = ch = getchar();
+ while (ch != '\n' && ch != EOF)
+ ch = getchar();
+ if (first != 'y' && first != 'Y') {
+ kmk_builtin_ctx_printf(pThis->pCtx, 1, "not overwritten\n");
+ return (0);
+ }
+ }
+ }
+ if (!rename(from, to)) {
+ if (pThis->vflg)
+ kmk_builtin_ctx_printf(pThis->pCtx, 0, "%s -> %s\n", from, to);
+ return (0);
+ }
+#ifdef _MSC_VER
+ if (errno == EEXIST) {
+ remove(to);
+ if (!rename(from, to)) {
+ if (pThis->vflg)
+ kmk_builtin_ctx_printf(pThis->pCtx, 0, "%s -> %s\n", from, to);
+ return (0);
+ }
+ }
+#endif
+
+ if (errno == EXDEV) {
+#if 1 //ndef CROSS_DEVICE_MOVE
+ warnx(pThis->pCtx, "cannot move `%s' to a different device: `%s'", from, to);
+ return (1);
+#else
+ struct statfs sfs;
+ char path[PATH_MAX];
+
+ /*
+ * If the source is a symbolic link and is on another
+ * filesystem, it can be recreated at the destination.
+ */
+ if (lstat(from, &sb) == -1) {
+ warn(pThis->pCtx, "%s", from);
+ return (1);
+ }
+ if (!S_ISLNK(sb.st_mode)) {
+ /* Can't mv(1) a mount point. */
+ if (realpath(from, path) == NULL) {
+ warnx(pThis->pCtx, "cannot resolve %s: %s", from, path);
+ return (1);
+ }
+ if (!statfs(path, &sfs) &&
+ !strcmp(path, sfs.f_mntonname)) {
+ warnx(pThis->pCtx, "cannot rename a mount point");
+ return (1);
+ }
+ }
+#endif
+ } else {
+ warn(pThis->pCtx, "rename %s to %s", from, to);
+ return (1);
+ }
+
+#if 0//def CROSS_DEVICE_MOVE
+ /*
+ * If rename fails because we're trying to cross devices, and
+ * it's a regular file, do the copy internally; otherwise, use
+ * cp and rm.
+ */
+ if (lstat(from, &sb)) {
+ warn(pThis->pCtx, "%s", from);
+ return (1);
+ }
+ return (S_ISREG(sb.st_mode) ?
+ fastcopy(pThis, from, to, &sb) : copy(pThis, from, to));
+#endif
+}
+
+#if 0 //def CROSS_DEVICE_MOVE - using static buffers and fork.
+int
+static fastcopy(char *from, char *to, struct stat *sbp)
+{
+ struct timeval tval[2];
+ static u_int blen;
+ static char *bp;
+ mode_t oldmode;
+ int nread, from_fd, to_fd;
+ acl_t acl;
+
+ if ((from_fd = open(from, O_RDONLY | KMK_OPEN_NO_INHERIT, 0)) < 0) {
+ warn("%s", from);
+ return (1);
+ }
+ if (blen < sbp->st_blksize) {
+ if (bp != NULL)
+ free(bp);
+ if ((bp = malloc((size_t)sbp->st_blksize)) == NULL) {
+ blen = 0;
+ warnx("malloc failed");
+ return (1);
+ }
+ blen = sbp->st_blksize;
+ }
+ while ((to_fd =
+ open(to, O_CREAT | O_EXCL | O_TRUNC | O_WRONLY | KMK_OPEN_NO_INHERIT, 0)) < 0) {
+ if (errno == EEXIST && unlink(to) == 0)
+ continue;
+ warn("%s", to);
+ (void)close(from_fd);
+ return (1);
+ }
+ while ((nread = read(from_fd, bp, (size_t)blen)) > 0)
+ if (write(to_fd, bp, (size_t)nread) != nread) {
+ warn("%s", to);
+ goto err;
+ }
+ if (nread < 0) {
+ warn("%s", from);
+err: if (unlink(to))
+ warn("%s: remove", to);
+ (void)close(from_fd);
+ (void)close(to_fd);
+ return (1);
+ }
+
+ oldmode = sbp->st_mode & ALLPERMS;
+ if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) {
+ warn("%s: set owner/group (was: %lu/%lu)", to,
+ (u_long)sbp->st_uid, (u_long)sbp->st_gid);
+ if (oldmode & (S_ISUID | S_ISGID)) {
+ warnx(
+"%s: owner/group changed; clearing suid/sgid (mode was 0%03o)",
+ to, oldmode);
+ sbp->st_mode &= ~(S_ISUID | S_ISGID);
+ }
+ }
+ /*
+ * POSIX 1003.2c states that if _POSIX_ACL_EXTENDED is in effect
+ * for dest_file, then it's ACLs shall reflect the ACLs of the
+ * source_file.
+ */
+ if (fpathconf(to_fd, _PC_ACL_EXTENDED) == 1 &&
+ fpathconf(from_fd, _PC_ACL_EXTENDED) == 1) {
+ acl = acl_get_fd(from_fd);
+ if (acl == NULL)
+ warn("failed to get acl entries while setting %s",
+ from);
+ else if (acl_set_fd(to_fd, acl) < 0)
+ warn("failed to set acl entries for %s", to);
+ }
+ (void)close(from_fd);
+ if (fchmod(to_fd, sbp->st_mode))
+ warn("%s: set mode (was: 0%03o)", to, oldmode);
+ /*
+ * XXX
+ * NFS doesn't support chflags; ignore errors unless there's reason
+ * to believe we're losing bits. (Note, this still won't be right
+ * if the server supports flags and we were trying to *remove* flags
+ * on a file that we copied, i.e., that we didn't create.)
+ */
+ errno = 0;
+ if (fchflags(to_fd, (u_long)sbp->st_flags))
+ if (errno != EOPNOTSUPP || sbp->st_flags != 0)
+ warn("%s: set flags (was: 0%07o)", to, sbp->st_flags);
+
+ tval[0].tv_sec = sbp->st_atime;
+ tval[1].tv_sec = sbp->st_mtime;
+ tval[0].tv_usec = tval[1].tv_usec = 0;
+ if (utimes(to, tval))
+ warn("%s: set times", to);
+
+ if (close(to_fd)) {
+ warn("%s", to);
+ return (1);
+ }
+
+ if (unlink(from)) {
+ warn("%s: remove", from);
+ return (1);
+ }
+ if (vflg)
+ kmk_builtin_ctx_printf(pThis->pCtx, 0, "%s -> %s\n", from, to);
+ return (0);
+}
+
+int
+copy(char *from, char *to)
+{
+ int pid, status;
+
+ if ((pid = fork()) == 0) {
+ execl(_PATH_CP, "mv", vflg ? "-PRpv" : "-PRp", "--", from, to,
+ (char *)NULL);
+ warn("%s", _PATH_CP);
+ _exit(1);
+ }
+ if (waitpid(pid, &status, 0) == -1) {
+ warn("%s: waitpid", _PATH_CP);
+ return (1);
+ }
+ if (!WIFEXITED(status)) {
+ warnx("%s: did not terminate normally", _PATH_CP);
+ return (1);
+ }
+ if (WEXITSTATUS(status)) {
+ warnx("%s: terminated with %d (non-zero) status",
+ _PATH_CP, WEXITSTATUS(status));
+ return (1);
+ }
+ if (!(pid = vfork())) {
+ execl(_PATH_RM, "mv", "-rf", "--", from, (char *)NULL);
+ warn("%s", _PATH_RM);
+ _exit(1);
+ }
+ if (waitpid(pid, &status, 0) == -1) {
+ warn("%s: waitpid", _PATH_RM);
+ return (1);
+ }
+ if (!WIFEXITED(status)) {
+ warnx("%s: did not terminate normally", _PATH_RM);
+ return (1);
+ }
+ if (WEXITSTATUS(status)) {
+ warnx("%s: terminated with %d (non-zero) status",
+ _PATH_RM, WEXITSTATUS(status));
+ return (1);
+ }
+ return (0);
+}
+#endif /* CROSS_DEVICE_MOVE */
+
+
+static int
+usage(PKMKBUILTINCTX pCtx, int fIsErr)
+{
+ kmk_builtin_ctx_printf(pCtx, fIsErr,
+ "usage: %s [-f | -i | -n] [-v] source target\n"
+ " or: %s [-f | -i | -n] [-v] source ... directory\n"
+ " or: %s --help\n"
+ " or: %s --version\n",
+ pCtx->pszProgName, pCtx->pszProgName, pCtx->pszProgName, pCtx->pszProgName);
+ return EX_USAGE;
+}
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