-/* $NetBSD: rm.c,v 1.24 1998/07/28 11:41:51 mycroft Exp $ */
-
/*-
* Copyright (c) 1990, 1993, 1994
* The Regents of the University of California. All rights reserved.
#include <sys/cdefs.h>
#ifndef lint
-__COPYRIGHT("@(#) Copyright (c) 1990, 1993, 1994\n\
- The Regents of the University of California. All rights reserved.\n");
+__used static const char copyright[] =
+"@(#) Copyright (c) 1990, 1993, 1994\n\
+ The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
-static char sccsid[] = "@(#)rm.c 8.8 (Berkeley) 4/27/95";
+static char sccsid[] = "@(#)rm.c 8.5 (Berkeley) 4/18/94";
#else
-__RCSID("$NetBSD: rm.c,v 1.24 1998/07/28 11:41:51 mycroft Exp $");
+__used static const char rcsid[] =
+ "$FreeBSD: src/bin/rm/rm.c,v 1.33 2001/06/13 15:01:25 ru Exp $";
#endif
#endif /* not lint */
-#include <sys/types.h>
#include <sys/stat.h>
+#include <sys/param.h>
+#include <sys/mount.h>
-#include <locale.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <sysexits.h>
#include <unistd.h>
+
+#ifdef __APPLE__
+#include <removefile.h>
#include <pwd.h>
#include <grp.h>
+#include "get_compat.h"
+#else
+#define COMPAT_MODE(func, mode) 1
+#endif
-int dflag, eval, fflag, iflag, Pflag, Wflag, stdin_ok;
+int dflag, eval, fflag, iflag, Pflag, vflag, Wflag, stdin_ok;
+uid_t uid;
int check __P((char *, char *, struct stat *));
+int checkdir __P((char *));
+int yes_or_no __P((void));
void checkdot __P((char **));
void rm_file __P((char **));
void rm_overwrite __P((char *, struct stat *));
void rm_tree __P((char **));
void usage __P((void));
-int main __P((int, char *[]));
-
-#ifdef __APPLE__ /* We're missing this prototype */
-int undelete __P((char *));
-#endif
-
-/*
- * For the sake of the `-f' flag, check whether an error number indicates the
- * failure of an operation due to an non-existent file, either per se (ENOENT)
- * or because its filename argument was illegal (ENAMETOOLONG, ENOTDIR).
- */
-#define NONEXISTENT(x) \
- ((x) == ENOENT || (x) == ENAMETOOLONG || (x) == ENOTDIR)
/*
* rm --
char *argv[];
{
int ch, rflag;
+ char *p;
- (void)setlocale(LC_ALL, "");
+ if (argc < 1)
+ usage();
+
+ /*
+ * Test for the special case where the utility is called as
+ * "unlink", for which the functionality provided is greatly
+ * simplified.
+ */
+ if ((p = rindex(argv[0], '/')) == NULL)
+ p = argv[0];
+ else
+ ++p;
+ uid = geteuid();
+ if (strcmp(p, "unlink") == 0) {
+ if (argc == 2) {
+ rm_file(&argv[1]);
+ exit(eval);
+ } else
+ usage();
+ }
Pflag = rflag = 0;
- while ((ch = getopt(argc, argv, "dfiPRrW")) != -1)
+ while ((ch = getopt(argc, argv, "dfiPRrvW")) != -1)
switch(ch) {
case 'd':
dflag = 1;
case 'r': /* Compatibility. */
rflag = 1;
break;
+ case 'v':
+ vflag = 1;
+ break;
case 'W':
Wflag = 1;
break;
- case '?':
default:
usage();
}
argc -= optind;
argv += optind;
- if (argc < 1)
+ if (argc < 1) {
+ if (fflag)
+ return 0;
usage();
+ }
checkdot(argv);
rm_file(argv);
}
- exit(eval);
- /* NOTREACHED */
+ exit (eval);
}
void
FTSENT *p;
int needstat;
int flags;
-
+ int rval;
+ int wantConformance = COMPAT_MODE("bin/rm", "unix2003");
/*
* Remove a file hierarchy. If forcing removal (-f), or interactive
* (-i) or can't ask anyway (stdin_ok), don't stat the file.
*/
- needstat = !fflag && !iflag && stdin_ok;
+ needstat = !uid || (!fflag && !iflag && stdin_ok);
/*
* If the -i option is specified, the user can skip on the pre-order
flags |= FTS_NOSTAT;
if (Wflag)
flags |= FTS_WHITEOUT;
- if (!(fts = fts_open(argv, flags,
- (int (*) __P((const FTSENT **, const FTSENT **)))NULL)))
- err(1, "%s", "");
+ if (!(fts = fts_open(argv, flags, NULL))) {
+ if (fflag && errno == ENOENT)
+ return;
+ err(1, NULL);
+ }
while ((p = fts_read(fts)) != NULL) {
switch (p->fts_info) {
case FTS_DNR:
continue;
case FTS_ERR:
errx(1, "%s: %s", p->fts_path, strerror(p->fts_errno));
- /* NOTREACHED */
case FTS_NS:
/*
* FTS_NS: assume that if can't stat the file, it
*/
if (!needstat)
break;
- if (!fflag || !NONEXISTENT(p->fts_errno)) {
+ if (!fflag || p->fts_errno != ENOENT) {
warnx("%s: %s",
p->fts_path, strerror(p->fts_errno));
eval = 1;
continue;
case FTS_D:
/* Pre-order: give user chance to skip. */
- if (!fflag && !check(p->fts_path, p->fts_accpath,
- p->fts_statp)) {
+ /* In conformance mode the user is prompted to skip processing the contents.
+ * Then the option to delete the dir is presented post-order */
+ if (!fflag &&
+ ( (wantConformance && !checkdir(p->fts_path)) ||
+ (!wantConformance && !check(p->fts_path, p->fts_accpath, p->fts_statp))
+ )
+ ){
(void)fts_set(fts, p, FTS_SKIP);
p->fts_number = SKIPPED;
}
+ else if (!uid &&
+ (p->fts_statp->st_flags & (UF_APPEND|UF_IMMUTABLE)) &&
+ !(p->fts_statp->st_flags & (SF_APPEND|SF_IMMUTABLE)) &&
+ chflags(p->fts_accpath,
+ p->fts_statp->st_flags &= ~(UF_APPEND|UF_IMMUTABLE)) < 0)
+ goto err;
continue;
case FTS_DP:
/* Post-order: see if user skipped. */
- if (p->fts_number == SKIPPED)
+ if(p->fts_number == SKIPPED)/*in legacy mode, the user was prompted pre-order */
continue;
+ else if(wantConformance)
+ {
+ /* delete directory if force is on, or if user answers Y to prompt */
+ if(fflag || check(p->fts_path, p->fts_accpath, p->fts_statp))
+ break;
+ else
+ continue;
+ }
break;
default:
if (!fflag &&
continue;
}
- /*
- * If we can't read or search the directory, may still be
- * able to remove it. Don't print out the un{read,search}able
- * message unless the remove fails.
- */
- switch (p->fts_info) {
- case FTS_DP:
- case FTS_DNR:
- if (!rmdir(p->fts_accpath) ||
- (fflag && errno == ENOENT))
- continue;
- break;
+ rval = 0;
+ if (!uid &&
+ (p->fts_statp->st_flags & (UF_APPEND|UF_IMMUTABLE)) &&
+ !(p->fts_statp->st_flags & (SF_APPEND|SF_IMMUTABLE)))
+ rval = chflags(p->fts_accpath,
+ p->fts_statp->st_flags &= ~(UF_APPEND|UF_IMMUTABLE));
+ if (rval == 0) {
+ /*
+ * If we can't read or search the directory, may still be
+ * able to remove it. Don't print out the un{read,search}able
+ * message unless the remove fails.
+ */
+ switch (p->fts_info) {
+ case FTS_DP:
+ case FTS_DNR:
+ rval = rmdir(p->fts_accpath);
+ if (rval == 0 || (fflag && errno == ENOENT)) {
+ if (rval == 0 && vflag)
+ (void)printf("%s\n",
+ p->fts_path);
+ continue;
+ }
+ break;
- case FTS_W:
- if (!undelete(p->fts_accpath) ||
- (fflag && errno == ENOENT))
- continue;
- break;
+ case FTS_W:
+ rval = undelete(p->fts_accpath);
+ if (rval == 0 && (fflag && errno == ENOENT)) {
+ if (vflag)
+ (void)printf("%s\n",
+ p->fts_path);
+ continue;
+ }
+ break;
- default:
- if (Pflag)
- rm_overwrite(p->fts_accpath, NULL);
- if (!unlink(p->fts_accpath) ||
- (fflag && NONEXISTENT(errno)))
- continue;
+ default:
+#ifdef __APPLE__
+ if (Pflag) {
+ if (removefile(p->fts_accpath, NULL, REMOVEFILE_SECURE_7_PASS)) /* overwrites and unlinks */
+ eval = rval = 1;
+ } else
+ rval = unlink(p->fts_accpath);
+#else /* !__APPLE_ */
+ if (Pflag)
+ rm_overwrite(p->fts_accpath, NULL);
+ rval = unlink(p->fts_accpath);
+#endif /* __APPLE__ */
+ if (rval == 0 || (fflag && errno == ENOENT)) {
+ if (rval == 0 && vflag)
+ (void)printf("%s\n",
+ p->fts_path);
+ continue;
+ }
+ }
}
+err:
warn("%s", p->fts_path);
eval = 1;
}
if (errno)
err(1, "fts_read");
+ fts_close(fts);
}
void
if (Wflag) {
sb.st_mode = S_IFWHT|S_IWUSR|S_IRUSR;
} else {
- if (!fflag || !NONEXISTENT(errno)) {
+ if (!fflag || errno != ENOENT) {
warn("%s", f);
eval = 1;
}
}
if (!fflag && !S_ISWHT(sb.st_mode) && !check(f, f, &sb))
continue;
- if (S_ISWHT(sb.st_mode))
- rval = undelete(f);
- else if (S_ISDIR(sb.st_mode))
- rval = rmdir(f);
- else {
- if (Pflag)
- rm_overwrite(f, &sb);
- rval = unlink(f);
+ rval = 0;
+ if (!uid &&
+ (sb.st_flags & (UF_APPEND|UF_IMMUTABLE)) &&
+ !(sb.st_flags & (SF_APPEND|SF_IMMUTABLE)))
+ rval = chflags(f, sb.st_flags & ~(UF_APPEND|UF_IMMUTABLE));
+ if (rval == 0) {
+ if (S_ISWHT(sb.st_mode))
+ rval = undelete(f);
+ else if (S_ISDIR(sb.st_mode))
+ rval = rmdir(f);
+ else {
+#ifdef __APPLE__
+ if (Pflag) {
+ if (removefile(f, NULL, REMOVEFILE_SECURE_7_PASS)) /* overwrites and unlinks */
+ eval = rval = 1;
+ } else
+ rval = unlink(f);
+#else /* !__APPLE__ */
+ if (Pflag)
+ rm_overwrite(f, &sb);
+ rval = unlink(f);
+#endif /* __APPLE__ */
+ }
}
- if (rval && (!fflag || !NONEXISTENT(errno))) {
+ if (rval && (!fflag || errno != ENOENT)) {
warn("%s", f);
eval = 1;
}
+ if (vflag && rval == 0)
+ (void)printf("%s\n", f);
}
}
struct stat *sbp;
{
struct stat sb;
+ struct statfs fsb;
off_t len;
- int fd, wlen;
- char buf[8 * 1024];
+ int bsize, fd, wlen;
+ char *buf = NULL;
- fd = -1;
if (sbp == NULL) {
if (lstat(file, &sb))
goto err;
return;
if ((fd = open(file, O_WRONLY, 0)) == -1)
goto err;
+ if (fstatfs(fd, &fsb) == -1)
+ goto err;
+ bsize = MAX(fsb.f_iosize, 1024);
+ if ((buf = malloc(bsize)) == NULL)
+ err(1, "malloc");
#define PASS(byte) { \
- memset(buf, byte, sizeof(buf)); \
+ memset(buf, byte, bsize); \
for (len = sbp->st_size; len > 0; len -= wlen) { \
- wlen = len < sizeof(buf) ? len : sizeof(buf); \
+ wlen = len < bsize ? (int)len : bsize; \
if (write(fd, buf, wlen) != wlen) \
goto err; \
} \
if (fsync(fd) || lseek(fd, (off_t)0, SEEK_SET))
goto err;
PASS(0xff);
- if (!fsync(fd) && !close(fd))
+ if (!fsync(fd) && !close(fd)) {
+ free(buf);
return;
+ }
err: eval = 1;
+ if (buf)
+ free(buf);
warn("%s", file);
}
+int
+yes_or_no()
+{
+ int ch, first;
+ (void)fflush(stderr);
+
+ first = ch = getchar();
+ while (ch != '\n' && ch != EOF)
+ ch = getchar();
+ return (first == 'y' || first == 'Y');
+}
+
+int
+checkdir(path)
+ char *path;
+{
+ if(!iflag)
+ return 1; //if not interactive, process directory's contents
+ (void)fprintf(stderr, "examine files in directory %s? ", path);
+ return yes_or_no();
+}
int
check(path, name, sp)
char *path, *name;
struct stat *sp;
{
- int ch, first;
- char modep[15];
+ char modep[15], *flagsp;
/* Check -i first. */
if (iflag)
* because their permissions are meaningless. Check stdin_ok
* first because we may not have stat'ed the file.
*/
- if (!stdin_ok || S_ISLNK(sp->st_mode) || !access(name, W_OK))
+ if (!stdin_ok || S_ISLNK(sp->st_mode) ||
+ (!access(name, W_OK) &&
+ !(sp->st_flags & (SF_APPEND|SF_IMMUTABLE)) &&
+ (!(sp->st_flags & (UF_APPEND|UF_IMMUTABLE)) || !uid)))
return (1);
strmode(sp->st_mode, modep);
- (void)fprintf(stderr, "override %s%s%s/%s for %s? ",
+ if ((flagsp = fflagstostr(sp->st_flags)) == NULL)
+ err(1, NULL);
+ (void)fprintf(stderr, "override %s%s%s/%s %s%sfor %s? ",
modep + 1, modep[9] == ' ' ? "" : " ",
user_from_uid(sp->st_uid, 0),
- group_from_gid(sp->st_gid, 0), path);
+ group_from_gid(sp->st_gid, 0),
+ *flagsp ? flagsp : "", *flagsp ? " " : "",
+ path);
+ free(flagsp);
}
- (void)fflush(stderr);
-
- first = ch = getchar();
- while (ch != '\n' && ch != EOF)
- ch = getchar();
- return (first == 'y' || first == 'Y');
+ return yes_or_no();
}
-/*
- * POSIX.2 requires that if "." or ".." are specified as the basename
- * portion of an operand, a diagnostic message be written to standard
- * error and nothing more be done with such operands.
- *
- * Since POSIX.2 defines basename as the final portion of a path after
- * trailing slashes have been removed, we'll remove them here.
- */
-#define ISDOT(a) ((a)[0] == '.' && (!(a)[1] || ((a)[1] == '.' && !(a)[2])))
+
+#define ISDOT(a) ((a)[0] == '.' && (!(a)[1] || ((a)[1] == '.' && !(a)[2])))
void
checkdot(argv)
char **argv;
complained = 0;
for (t = argv; *t;) {
- /* strip trailing slashes */
- p = strrchr (*t, '\0');
- while (--p > *t && *p == '/')
- *p = '\0';
-
- /* extract basename */
- if ((p = strrchr(*t, '/')) != NULL)
- ++p;
- else
+ size_t len = strlen(*t);
+ char truncated[len];
+
+ if ((p = strrchr(*t, '/')) != NULL) {
+ if (p[1] == '\0') { // trailing / -- treat as if not present
+ strlcpy(truncated, *t, len);
+ p = strrchr(truncated, '/');
+ if (p) {
+ ++p;
+ } else {
+ p = truncated;
+ }
+ } else {
+ ++p;
+ }
+ } else {
p = *t;
-
+ }
if (ISDOT(p)) {
if (!complained++)
warnx("\".\" and \"..\" may not be removed");
usage()
{
- (void)fprintf(stderr, "usage: rm [-dfiPRrW] file ...\n");
- exit(1);
- /* NOTREACHED */
+ (void)fprintf(stderr, "%s\n%s\n",
+ "usage: rm [-f | -i] [-dPRrvW] file ...",
+ " unlink file");
+ exit(EX_USAGE);
}
projects / apple / file_cmds.git / blobdiff