embedaddon/rsync/util.c - diff

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Diff for /embedaddon/rsync/util.c between versions 1.1 and 1.1.1.4

version 1.1, 2012/02/17 15:09:30	version 1.1.1.4, 2021/03/17 00:32:36
Line 4	Line 4
* Copyright (C) 1996-2000 Andrew Tridgell	* Copyright (C) 1996-2000 Andrew Tridgell
* Copyright (C) 1996 Paul Mackerras	* Copyright (C) 1996 Paul Mackerras
* Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>	* Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
* Copyright (C) 2003-2009 Wayne Davison	* Copyright (C) 2003-2020 Wayne Davison
*	*
* This program is free software; you can redistribute it and/or modify	* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by	* it under the terms of the GNU General Public License as published by
Line 22	Line 22

#include "rsync.h"	#include "rsync.h"
#include "ifuncs.h"	#include "ifuncs.h"
	#include "itypes.h"
	#include "inums.h"

extern int verbose;	extern int dry_run;
extern int module_id;	extern int module_id;
	extern int do_fsync;
	extern int protect_args;
extern int modify_window;	extern int modify_window;
extern int relative_paths;	extern int relative_paths;
extern int preserve_times;	extern int preserve_times;
extern int human_readable;
extern int preserve_xattrs;	extern int preserve_xattrs;
	extern int preallocate_files;
	extern int force_change;
extern char *module_dir;	extern char *module_dir;
extern unsigned int module_dirlen;	extern unsigned int module_dirlen;
extern mode_t orig_umask;
extern char *partial_dir;	extern char *partial_dir;
extern struct filter_list_struct daemon_filter_list;	extern filter_rule_list daemon_filter_list;

int sanitize_paths = 0;	int sanitize_paths = 0;

Line 94 int fd_pair(int fd[2])	Line 98 int fd_pair(int fd[2])

void print_child_argv(const char prefix, char *cmd)	void print_child_argv(const char prefix, char *cmd)
{	{
	int cnt = 0;
rprintf(FCLIENT, "%s ", prefix);	rprintf(FCLIENT, "%s ", prefix);
for (; *cmd; cmd++) {	for (; *cmd; cmd++) {
/* Look for characters that ought to be quoted. This	/* Look for characters that ought to be quoted. This
Line 107 void print_child_argv(const char prefix, char *cmd)	Line 112 void print_child_argv(const char prefix, char *cmd)
} else {	} else {
rprintf(FCLIENT, "%s ", *cmd);	rprintf(FCLIENT, "%s ", *cmd);
}	}
	cnt++;
}	}
rprintf(FCLIENT, "\n");	rprintf(FCLIENT, " (%d args)\n", cnt);
}	}

NORETURN void out_of_memory(const char *str)	#ifdef SUPPORT_FORCE_CHANGE
	static int try_a_force_change(const char fname, STRUCT_STAT stp)
{	{
rprintf(FERROR, "ERROR: out of memory in %s [%s]\n", str, who_am_i());	uint32 fileflags = ST_FLAGS(*stp);
exit_cleanup(RERR_MALLOC);	if (fileflags == NO_FFLAGS) {
}	STRUCT_STAT st;
	if (x_lstat(fname, &st, NULL) == 0)
	fileflags = st.st_flags;
	}
	if (fileflags != NO_FFLAGS && make_mutable(fname, stp->st_mode, fileflags, force_change) > 0) {
	int ret, save_force_change = force_change;

NORETURN void overflow_exit(const char *str)	force_change = 0; /* Make certain we can't come back here. */
{	ret = set_times(fname, stp);
rprintf(FERROR, "ERROR: buffer overflow in %s [%s]\n", str, who_am_i());	force_change = save_force_change;
exit_cleanup(RERR_MALLOC);
	undo_make_mutable(fname, fileflags);

	return ret;
	}

	errno = EPERM;

	return -1;
}	}
	#endif

/* This returns 0 for success, 1 for a symlink if symlink time-setting	/* This returns 0 for success, 1 for a symlink if symlink time-setting
* is not possible, or -1 for any other error. */	* is not possible, or -1 for any other error. */
int set_modtime(const char *fname, time_t modtime, mode_t mode)	int set_times(const char fname, STRUCT_STAT stp)
{	{
static int switch_step = 0;	static int switch_step = 0;

if (verbose > 2) {	if (DEBUG_GTE(TIME, 1)) {
rprintf(FINFO, "set modtime of %s to (%ld) %s",	rprintf(FINFO,
fname, (long)modtime,	"set modtime, atime of %s to (%ld) %s, (%ld) %s\n",
asctime(localtime(&modtime)));	fname, (long)stp->st_mtime,
	timestring(stp->st_mtime), (long)stp->st_atime, timestring(stp->st_atime));
}	}

switch (switch_step) {	switch (switch_step) {
	#ifdef HAVE_SETATTRLIST
	#include "case_N.h"
	if (do_setattrlist_times(fname, stp) == 0)
	break;
	if (errno != ENOSYS)
	return -1;
	switch_step++;
	#endif

#ifdef HAVE_UTIMENSAT	#ifdef HAVE_UTIMENSAT
#include "case_N.h"	#include "case_N.h"
if (do_utimensat(fname, modtime, 0) == 0)	if (do_utimensat(fname, stp) == 0)
break;	break;
	#ifdef SUPPORT_FORCE_CHANGE
	if (force_change && errno == EPERM && try_a_force_change(fname, stp) == 0)
	break;
	#endif
if (errno != ENOSYS)	if (errno != ENOSYS)
return -1;	return -1;
switch_step++;	switch_step++;
/* FALLTHROUGH */
#endif	#endif

#ifdef HAVE_LUTIMES	#ifdef HAVE_LUTIMES
#include "case_N.h"	#include "case_N.h"
if (do_lutimes(fname, modtime, 0) == 0)	if (do_lutimes(fname, stp) == 0)
break;	break;
	#ifdef SUPPORT_FORCE_CHANGE
	if (force_change && errno == EPERM && try_a_force_change(fname, stp) == 0)
	break;
	#endif
if (errno != ENOSYS)	if (errno != ENOSYS)
return -1;	return -1;
switch_step++;	switch_step++;
/* FALLTHROUGH */
#endif	#endif

#include "case_N.h"	#include "case_N.h"
switch_step++;	switch_step++;
if (preserve_times & PRESERVE_LINK_TIMES) {	if (preserve_times & PRESERVE_LINK_TIMES) {
preserve_times &= ~PRESERVE_LINK_TIMES;	preserve_times &= ~PRESERVE_LINK_TIMES;
if (S_ISLNK(mode))	if (S_ISLNK(stp->st_mode))
return 1;	return 1;
}	}
/* FALLTHROUGH */

#include "case_N.h"	#include "case_N.h"
#ifdef HAVE_UTIMES	#ifdef HAVE_UTIMES
if (do_utimes(fname, modtime, 0) == 0)	if (do_utimes(fname, stp) == 0)
break;	break;
#else	#else
if (do_utime(fname, modtime, 0) == 0)	if (do_utime(fname, stp) == 0)
break;	break;
#endif	#endif
	#ifdef SUPPORT_FORCE_CHANGE
	if (force_change && errno == EPERM && try_a_force_change(fname, stp) == 0)
	break;
	#endif

return -1;	return -1;
}	}
Line 180 int set_modtime(const char *fname, time_t modtime, mod	Line 220 int set_modtime(const char *fname, time_t modtime, mod
return 0;	return 0;
}	}

/* This creates a new directory with default permissions. Since there
* might be some directory-default permissions affecting this, we can't
* force the permissions directly using the original umask and mkdir(). */
int mkdir_defmode(char *fname)
{
int ret;

umask(orig_umask);
ret = do_mkdir(fname, ACCESSPERMS);
umask(0);

return ret;
}

/* Create any necessary directories in fname. Any missing directories are	/* Create any necessary directories in fname. Any missing directories are
* created with default permissions. */	* created with default permissions. Returns < 0 on error, or the number
int create_directory_path(char *fname)	* of directories created. */
	int make_path(char *fname, mode_t mode, int flags)
{	{
char *p;	char end, p;
int ret = 0;	int ret = 0;

while (*fname == '/')	if (flags & MKP_SKIP_SLASH) {
fname++;	while (*fname == '/')
while (strncmp(fname, "./", 2) == 0)	fname++;
	}

	while (*fname == '.' && fname[1] == '/')
fname += 2;	fname += 2;

umask(orig_umask);	if (flags & MKP_DROP_NAME) {
p = fname;	end = strrchr(fname, '/');
while ((p = strchr(p,'/')) != NULL) {	if (!end \|\| end == fname)
*p = '\0';	return 0;
if (do_mkdir(fname, ACCESSPERMS) < 0 && errno != EEXIST)	*end = '\0';
ret = -1;	} else
*p++ = '/';	end = fname + strlen(fname);

	/* Try to find an existing dir, starting from the deepest dir. */
	for (p = end; ; ) {
	if (dry_run) {
	STRUCT_STAT st;
	if (do_stat(fname, &st) == 0) {
	if (S_ISDIR(st.st_mode))
	errno = EEXIST;
	else
	errno = ENOTDIR;
	}
	} else if (do_mkdir(fname, mode) == 0) {
	ret++;
	break;
	}

	if (errno != ENOENT) {
	STRUCT_STAT st;
	if (errno != EEXIST \|\| (do_stat(fname, &st) == 0 && !S_ISDIR(st.st_mode)))
	ret = -ret - 1;
	break;
	}
	while (1) {
	if (p == fname) {
	/* We got a relative path that doesn't exist, so assume that '.'
	* is there and just break out and create the whole thing. */
	p = NULL;
	goto double_break;
	}
	if (*--p == '/') {
	if (p == fname) {
	/* We reached the "/" dir, which we assume is there. */
	goto double_break;
	}
	*p = '\0';
	break;
	}
	}
}	}
umask(0);	double_break:

	/* Make all the dirs that we didn't find on the way here. */
	while (p != end) {
	if (p)
	*p = '/';
	else
	p = fname;
	p += strlen(p);
	if (ret < 0) /* Skip mkdir on error, but keep restoring the path. */
	continue;
	if (do_mkdir(fname, mode) < 0)
	ret = -ret - 1;
	else
	ret++;
	}

	if (flags & MKP_DROP_NAME)
	*end = '/';

return ret;	return ret;
}	}

Line 280 static int safe_read(int desc, char *ptr, size_t len)	Line 366 static int safe_read(int desc, char *ptr, size_t len)
*	*
* This is used in conjunction with the --temp-dir, --backup, and	* This is used in conjunction with the --temp-dir, --backup, and
* --copy-dest options. */	* --copy-dest options. */
int copy_file(const char source, const char dest, int ofd,	int copy_file(const char source, const char dest, int ofd, mode_t mode)
mode_t mode, int create_bak_dir)
{	{
int ifd;	int ifd;
char buf[1024 * 8];	char buf[1024 * 8];
int len; /* Number of bytes read into `buf'. */	int len; /* Number of bytes read into `buf'. */
	OFF_T prealloc_len = 0, offset = 0;

if ((ifd = do_open(source, O_RDONLY, 0)) < 0) {	if ((ifd = do_open(source, O_RDONLY, 0)) < 0) {
int save_errno = errno;	int save_errno = errno;
Line 298 int copy_file(const char source, const char dest, in	Line 384 int copy_file(const char source, const char dest, in
if (robust_unlink(dest) && errno != ENOENT) {	if (robust_unlink(dest) && errno != ENOENT) {
int save_errno = errno;	int save_errno = errno;
rsyserr(FERROR_XFER, errno, "unlink %s", full_fname(dest));	rsyserr(FERROR_XFER, errno, "unlink %s", full_fname(dest));
	close(ifd);
errno = save_errno;	errno = save_errno;
return -1;	return -1;
}	}

	#ifdef SUPPORT_XATTRS
	if (preserve_xattrs)
	mode \|= S_IWUSR;
	#endif
	mode &= INITACCESSPERMS;
if ((ofd = do_open(dest, O_WRONLY \| O_CREAT \| O_TRUNC \| O_EXCL, mode)) < 0) {	if ((ofd = do_open(dest, O_WRONLY \| O_CREAT \| O_TRUNC \| O_EXCL, mode)) < 0) {
int save_errno = errno ? errno : EINVAL; /* 0 paranoia */	int save_errno = errno;
if (create_bak_dir && errno == ENOENT && make_bak_dir(dest) == 0) {	rsyserr(FERROR_XFER, save_errno, "open %s", full_fname(dest));
if ((ofd = do_open(dest, O_WRONLY \| O_CREAT \| O_TRUNC \| O_EXCL, mode)) < 0)	close(ifd);
save_errno = errno ? errno : save_errno;	errno = save_errno;
else	return -1;
save_errno = 0;
}
if (save_errno) {
rsyserr(FERROR_XFER, save_errno, "open %s", full_fname(dest));
close(ifd);
errno = save_errno;
return -1;
}
}	}
}	}

	#ifdef SUPPORT_PREALLOCATION
	if (preallocate_files) {
	STRUCT_STAT srcst;

	/* Try to preallocate enough space for file's eventual length. Can
	* reduce fragmentation on filesystems like ext4, xfs, and NTFS. */
	if (do_fstat(ifd, &srcst) < 0)
	rsyserr(FWARNING, errno, "fstat %s", full_fname(source));
	else if (srcst.st_size > 0) {
	prealloc_len = do_fallocate(ofd, 0, srcst.st_size);
	if (prealloc_len < 0)
	rsyserr(FWARNING, errno, "do_fallocate %s", full_fname(dest));
	}
	}
	#endif

while ((len = safe_read(ifd, buf, sizeof buf)) > 0) {	while ((len = safe_read(ifd, buf, sizeof buf)) > 0) {
if (full_write(ofd, buf, len) < 0) {	if (full_write(ofd, buf, len) < 0) {
int save_errno = errno;	int save_errno = errno;
Line 328 int copy_file(const char source, const char dest, in	Line 428 int copy_file(const char source, const char dest, in
errno = save_errno;	errno = save_errno;
return -1;	return -1;
}	}
	offset += len;
}	}

if (len < 0) {	if (len < 0) {
Line 344 int copy_file(const char source, const char dest, in	Line 445 int copy_file(const char source, const char dest, in
full_fname(source));	full_fname(source));
}	}

	/* Source file might have shrunk since we fstatted it.
	* Cut off any extra preallocated zeros from dest file. */
	if (offset < prealloc_len && do_ftruncate(ofd, offset) < 0) {
	/* If we fail to truncate, the dest file may be wrong, so we
	* must trigger the "partial transfer" error. */
	rsyserr(FERROR_XFER, errno, "ftruncate %s", full_fname(dest));
	}

	if (do_fsync && fsync(ofd) < 0) {
	rsyserr(FERROR, errno, "fsync failed on %s",
	full_fname(dest));
	close(ofd);
	return -1;
	}

if (close(ofd) < 0) {	if (close(ofd) < 0) {
int save_errno = errno;	int save_errno = errno;
rsyserr(FERROR_XFER, errno, "close failed on %s",	rsyserr(FERROR_XFER, errno, "close failed on %s",
Line 407 int robust_unlink(const char *fname)	Line 523 int robust_unlink(const char *fname)
counter = 1;	counter = 1;
} while ((rc = access(path, 0)) == 0 && counter != start);	} while ((rc = access(path, 0)) == 0 && counter != start);

if (verbose > 0) {	if (INFO_GTE(MISC, 1)) {
rprintf(FWARNING, "renaming %s to %s because of text busy\n",	rprintf(FWARNING, "renaming %s to %s because of text busy\n",
fname, path);	fname, path);
}	}
Line 430 int robust_rename(const char from, const char to, co	Line 546 int robust_rename(const char from, const char to, co
{	{
int tries = 4;	int tries = 4;

	/* A resumed in-place partial-dir transfer might call us with from and
	* to pointing to the same buf if the transfer failed yet again. */
	if (from == to)
	return 0;

while (tries--) {	while (tries--) {
if (do_rename(from, to) == 0)	if (do_rename(from, to) == 0)
return 0;	return 0;
Line 450 int robust_rename(const char from, const char to, co	Line 571 int robust_rename(const char from, const char to, co
return -2;	return -2;
to = partialptr;	to = partialptr;
}	}
if (copy_file(from, to, -1, mode, 0) != 0)	if (copy_file(from, to, -1, mode) != 0)
return -2;	return -2;
do_unlink(from);	do_unlink(from);
return 1;	return 1;
Line 504 void kill_all(int sig)	Line 625 void kill_all(int sig)
}	}
}	}

/** Turn a user name into a uid */
int name_to_uid(const char name, uid_t uid_p)
{
struct passwd *pass;
if (!name \|\| !*name)
return 0;
if (!(pass = getpwnam(name)))
return 0;
*uid_p = pass->pw_uid;
return 1;
}

/** Turn a group name into a gid */
int name_to_gid(const char name, gid_t gid_p)
{
struct group *grp;
if (!name \|\| !*name)
return 0;
if (!(grp = getgrnam(name)))
return 0;
*gid_p = grp->gr_gid;
return 1;
}

/** Lock a byte range in a open file */	/** Lock a byte range in a open file */
int lock_range(int fd, int offset, int len)	int lock_range(int fd, int offset, int len)
{	{
Line 543 int lock_range(int fd, int offset, int len)	Line 640 int lock_range(int fd, int offset, int len)
}	}

#define ENSURE_MEMSPACE(buf, type, sz, req) \	#define ENSURE_MEMSPACE(buf, type, sz, req) \
if ((req) > sz && !(buf = realloc_array(buf, type, sz = MAX(sz * 2, req)))) \	do { if ((req) > sz) buf = realloc_array(buf, type, sz = MAX(sz * 2, req)); } while(0)
out_of_memory("glob_expand")

static inline void call_glob_match(const char *name, int len, int from_glob,	static inline void call_glob_match(const char *name, int len, int from_glob,
char *arg, int abpos, int fbpos);	char *arg, int abpos, int fbpos);
Line 646 static inline void call_glob_match(const char *name, i	Line 742 static inline void call_glob_match(const char *name, i
glob_match(arg, abpos, fbpos);	glob_match(arg, abpos, fbpos);
} else {	} else {
ENSURE_MEMSPACE(glob.argv, char *, glob.maxargs, glob.argc + 1);	ENSURE_MEMSPACE(glob.argv, char *, glob.maxargs, glob.argc + 1);
if (!(glob.argv[glob.argc++] = strdup(glob.arg_buf)))	glob.argv[glob.argc++] = strdup(glob.arg_buf);
out_of_memory("glob_match");
}	}
}	}

Line 671 int glob_expand(const char arg, char *argv_p, int	Line 766 int glob_expand(const char arg, char *argv_p, int
s = sanitize_path(NULL, arg, "", 0, SP_KEEP_DOT_DIRS);	s = sanitize_path(NULL, arg, "", 0, SP_KEEP_DOT_DIRS);
else {	else {
s = strdup(arg);	s = strdup(arg);
if (!s)	clean_fname(s, CFN_KEEP_DOT_DIRS \| CFN_KEEP_TRAILING_SLASH \| CFN_COLLAPSE_DOT_DOT_DIRS);
out_of_memory("glob_expand");
clean_fname(s, CFN_KEEP_DOT_DIRS
\| CFN_KEEP_TRAILING_SLASH
\| CFN_COLLAPSE_DOT_DOT_DIRS);
}	}

ENSURE_MEMSPACE(glob.arg_buf, char, glob.absize, MAXPATHLEN);	ENSURE_MEMSPACE(glob.arg_buf, char, glob.absize, MAXPATHLEN);
Line 719 void glob_expand_module(char base1, char arg, char *	Line 810 void glob_expand_module(char base1, char arg, char *
if (strncmp(arg, base, base_len) == 0)	if (strncmp(arg, base, base_len) == 0)
arg += base_len;	arg += base_len;

if (!(arg = strdup(arg)))	if (protect_args) {
out_of_memory("glob_expand_module");	glob_expand(arg, argv_p, argc_p, maxargs_p);
	return;
	}

if (asprintf(&base," %s/", base1) <= 0)	arg = strdup(arg);

	if (asprintf(&base," %s/", base1) < 0)
out_of_memory("glob_expand_module");	out_of_memory("glob_expand_module");
base_len++;	base_len++;

Line 750 void strlower(char *s)	Line 845 void strlower(char *s)
}	}
}	}

	/**
	* Split a string into tokens based (usually) on whitespace & commas. If the
	* string starts with a comma (after skipping any leading whitespace), then
	* splitting is done only on commas. No empty tokens are ever returned. */
	char conf_strtok(char str)
	{
	static int commas_only = 0;

	if (str) {
	while (isSpace(str)) str++;
	if (*str == ',') {
	commas_only = 1;
	str++;
	} else
	commas_only = 0;
	}

	while (commas_only) {
	char end, tok = strtok(str, ",");
	if (!tok)
	return NULL;
	/* Trim just leading and trailing whitespace. */
	while (isSpace(tok))
	tok++;
	end = tok + strlen(tok);
	while (end > tok && isSpace(end-1))
	*--end = '\0';
	if (*tok)
	return tok;
	str = NULL;
	}

	return strtok(str, " ,\t\r\n");
	}

/* Join strings p1 & p2 into "dest" with a guaranteed '/' between them. (If	/* Join strings p1 & p2 into "dest" with a guaranteed '/' between them. (If
* p1 ends with a '/', no extra '/' is inserted.) Returns the length of both	* p1 ends with a '/', no extra '/' is inserted.) Returns the length of both
* strings + 1 (if '/' was inserted), regardless of whether the null-terminated	* strings + 1 (if '/' was inserted), regardless of whether the null-terminated
Line 802 size_t stringjoin(char *dest, size_t destsize, ...)	Line 932 size_t stringjoin(char *dest, size_t destsize, ...)
return ret;	return ret;
}	}

	/* Append formatted text at *dest_ptr up to a maximum of sz (like snprintf).
	* On success, advance dest_ptr and return True; on overflow, return False. /
	BOOL snappendf(char *dest_ptr, size_t sz, const char format, ...)
	{
	va_list ap;
	size_t len;

	va_start(ap, format);
	len = vsnprintf(*dest_ptr, sz, format, ap);
	va_end(ap);

	if (len >= sz)
	return False;
	else {
	*dest_ptr += len;
	return True;
	}
	}

int count_dir_elements(const char *p)	int count_dir_elements(const char *p)
{	{
int cnt = 0, new_component = 1;	int cnt = 0, new_component = 1;
Line 824 int count_dir_elements(const char *p)	Line 973 int count_dir_elements(const char *p)
* CFN_KEEP_TRAILING_SLASH is flagged, and will also collapse ".." elements	* CFN_KEEP_TRAILING_SLASH is flagged, and will also collapse ".." elements
* (except at the start) if CFN_COLLAPSE_DOT_DOT_DIRS is flagged. If the	* (except at the start) if CFN_COLLAPSE_DOT_DOT_DIRS is flagged. If the
* resulting name would be empty, returns ".". */	* resulting name would be empty, returns ".". */
unsigned int clean_fname(char *name, int flags)	int clean_fname(char *name, int flags)
{	{
char limit = name - 1, t = name, *f = name;	char limit = name - 1, t = name, *f = name;
int anchored;	int anchored;
Line 832 unsigned int clean_fname(char *name, int flags)	Line 981 unsigned int clean_fname(char *name, int flags)
if (!name)	if (!name)
return 0;	return 0;

	#define DOT_IS_DOT_DOT_DIR(bp) (bp[1] == '.' && (bp[2] == '/' \|\| !bp[2]))

if ((anchored = *f == '/') != 0) {	if ((anchored = *f == '/') != 0) {
t++ = f++;	t++ = f++;
#ifdef __CYGWIN__	#ifdef __CYGWIN__
Line 844 unsigned int clean_fname(char *name, int flags)	Line 995 unsigned int clean_fname(char *name, int flags)
} else if (flags & CFN_KEEP_DOT_DIRS && *f == '.' && f[1] == '/') {	} else if (flags & CFN_KEEP_DOT_DIRS && *f == '.' && f[1] == '/') {
t++ = f++;	t++ = f++;
t++ = f++;	t++ = f++;
}	} else if (flags & CFN_REFUSE_DOT_DOT_DIRS && *f == '.' && DOT_IS_DOT_DOT_DIR(f))
	return -1;
while (*f) {	while (*f) {
/* discard extra slashes */	/* discard extra slashes */
if (*f == '/') {	if (*f == '/') {
Line 860 unsigned int clean_fname(char *name, int flags)	Line 1012 unsigned int clean_fname(char *name, int flags)
if (f[1] == '\0' && flags & CFN_DROP_TRAILING_DOT_DIR)	if (f[1] == '\0' && flags & CFN_DROP_TRAILING_DOT_DIR)
break;	break;
/* collapse ".." dirs */	/* collapse ".." dirs */
if (flags & CFN_COLLAPSE_DOT_DOT_DIRS	if (flags & (CFN_COLLAPSE_DOT_DOT_DIRS\|CFN_REFUSE_DOT_DOT_DIRS) && DOT_IS_DOT_DOT_DIR(f)) {
&& f[1] == '.' && (f[2] == '/' \|\| !f[2])) {
char *s = t - 1;	char *s = t - 1;
	if (flags & CFN_REFUSE_DOT_DOT_DIRS)
	return -1;
if (s == name && anchored) {	if (s == name && anchored) {
f += 2;	f += 2;
continue;	continue;
Line 885 unsigned int clean_fname(char *name, int flags)	Line 1038 unsigned int clean_fname(char *name, int flags)
*t++ = '.';	*t++ = '.';
*t = '\0';	*t = '\0';

	#undef DOT_IS_DOT_DOT_DIR

return t - name;	return t - name;
}	}

Line 910 unsigned int clean_fname(char *name, int flags)	Line 1065 unsigned int clean_fname(char *name, int flags)
* ALWAYS collapses ".." elements (except for those at the start of the	* ALWAYS collapses ".." elements (except for those at the start of the
* string up to "depth" deep). If the resulting name would be empty,	* string up to "depth" deep). If the resulting name would be empty,
* change it into a ".". */	* change it into a ".". */
char sanitize_path(char dest, const char p, const char rootdir, int depth,	char sanitize_path(char dest, const char p, const char rootdir, int depth, int flags)
int flags)
{	{
char start, sanp;	char start, sanp;
int rlen = 0, drop_dot_dirs = !relative_paths \|\| !(flags & SP_KEEP_DOT_DIRS);	int rlen = 0, drop_dot_dirs = !relative_paths \|\| !(flags & SP_KEEP_DOT_DIRS);

if (dest != p) {	if (dest != p) {
int plen = strlen(p);	int plen = strlen(p); /* the path len INCLUDING any separating slash */
if (*p == '/') {	if (*p == '/') {
if (!rootdir)	if (!rootdir)
rootdir = module_dir;	rootdir = module_dir;
Line 925 char sanitize_path(char dest, const char *p, const c	Line 1079 char sanitize_path(char dest, const char *p, const c
depth = 0;	depth = 0;
p++;	p++;
}	}
if (dest) {	if (!dest)
if (rlen + plen + 1 >= MAXPATHLEN)	dest = new_array(char, MAX(rlen + plen + 1, 2));
return NULL;	else if (rlen + plen + 1 >= MAXPATHLEN)
} else if (!(dest = new_array(char, rlen + plen + 1)))	return NULL;
out_of_memory("sanitize_path");	if (rlen) { /* only true if p previously started with a slash */
if (rlen) {
memcpy(dest, rootdir, rlen);	memcpy(dest, rootdir, rlen);
if (rlen > 1)	if (rlen > 1) /* a rootdir of len 1 is "/", so this avoids a 2nd slash */
dest[rlen++] = '/';	dest[rlen++] = '/';
}	}
}	}
Line 992 char sanitize_path(char dest, const char *p, const c	Line 1145 char sanitize_path(char dest, const char *p, const c
* Also cleans the path using the clean_fname() function. */	* Also cleans the path using the clean_fname() function. */
int change_dir(const char *dir, int set_path_only)	int change_dir(const char *dir, int set_path_only)
{	{
static int initialised;	static int initialised, skipped_chdir;
unsigned int len;	unsigned int len;

if (!initialised) {	if (!initialised) {
Line 1008 int change_dir(const char *dir, int set_path_only)	Line 1161 int change_dir(const char *dir, int set_path_only)
return 0;	return 0;

len = strlen(dir);	len = strlen(dir);
if (len == 1 && *dir == '.')	if (len == 1 && *dir == '.' && (!skipped_chdir \|\| set_path_only))
return 1;	return 1;

if (*dir == '/') {	if (*dir == '/') {
Line 1018 int change_dir(const char *dir, int set_path_only)	Line 1171 int change_dir(const char *dir, int set_path_only)
}	}
if (!set_path_only && chdir(dir))	if (!set_path_only && chdir(dir))
return 0;	return 0;
	skipped_chdir = set_path_only;
memcpy(curr_dir, dir, len + 1);	memcpy(curr_dir, dir, len + 1);
} else {	} else {
	unsigned int save_dir_len = curr_dir_len;
if (curr_dir_len + 1 + len >= sizeof curr_dir) {	if (curr_dir_len + 1 + len >= sizeof curr_dir) {
errno = ENAMETOOLONG;	errno = ENAMETOOLONG;
return 0;	return 0;
Line 1029 int change_dir(const char *dir, int set_path_only)	Line 1184 int change_dir(const char *dir, int set_path_only)
memcpy(curr_dir + curr_dir_len, dir, len + 1);	memcpy(curr_dir + curr_dir_len, dir, len + 1);

if (!set_path_only && chdir(curr_dir)) {	if (!set_path_only && chdir(curr_dir)) {
	curr_dir_len = save_dir_len;
curr_dir[curr_dir_len] = '\0';	curr_dir[curr_dir_len] = '\0';
return 0;	return 0;
}	}
	skipped_chdir = set_path_only;
}	}

curr_dir_len = clean_fname(curr_dir, CFN_COLLAPSE_DOT_DOT_DIRS);	curr_dir_len = clean_fname(curr_dir, CFN_COLLAPSE_DOT_DOT_DIRS \| CFN_DROP_TRAILING_DOT_DIR);
if (sanitize_paths) {	if (sanitize_paths) {
if (module_dirlen > curr_dir_len)	if (module_dirlen > curr_dir_len)
module_dirlen = curr_dir_len;	module_dirlen = curr_dir_len;
curr_dir_depth = count_dir_elements(curr_dir + module_dirlen);	curr_dir_depth = count_dir_elements(curr_dir + module_dirlen);
}	}

if (verbose >= 5 && !set_path_only)	if (DEBUG_GTE(CHDIR, 1) && !set_path_only)
rprintf(FINFO, "[%s] change_dir(%s)\n", who_am_i(), curr_dir);	rprintf(FINFO, "[%s] change_dir(%s)\n", who_am_i(), curr_dir);

return 1;	return 1;
Line 1059 char normalize_path(char path, BOOL force_newbuf, un	Line 1216 char normalize_path(char path, BOOL force_newbuf, un
return NULL;	return NULL;
curr_dir[curr_dir_len] = '/';	curr_dir[curr_dir_len] = '/';
memcpy(curr_dir + curr_dir_len + 1, path, len + 1);	memcpy(curr_dir + curr_dir_len + 1, path, len + 1);
if (!(path = strdup(curr_dir)))	path = strdup(curr_dir);
out_of_memory("normalize_path");
curr_dir[curr_dir_len] = '\0';	curr_dir[curr_dir_len] = '\0';
} else if (force_newbuf) {	} else if (force_newbuf)
if (!(path = strdup(path)))	path = strdup(path);
out_of_memory("normalize_path");
}

len = clean_fname(path, CFN_COLLAPSE_DOT_DOT_DIRS \| CFN_DROP_TRAILING_DOT_DIR);	len = clean_fname(path, CFN_COLLAPSE_DOT_DOT_DIRS \| CFN_DROP_TRAILING_DOT_DIR);

Line 1075 char normalize_path(char path, BOOL force_newbuf, un	Line 1229 char normalize_path(char path, BOOL force_newbuf, un
return path;	return path;
}	}

	/* We need to supply our own strcmp function for file list comparisons
	* to ensure that signed/unsigned usage is consistent between machines. */
	int u_strcmp(const char p1, const char p2)
	{
	for ( ; *p1; p1++, p2++) {
	if (p1 != p2)
	break;
	}

	return (int)(uchar)p1 - (int)(uchar)p2;
	}

	/* We need a memcmp function compares unsigned-byte values. */
	int u_memcmp(const void p1, const void p2, size_t len)
	{
	const uchar *u1 = p1;
	const uchar *u2 = p2;

	while (len--) {
	if (u1 != u2)
	return (int)u1 - (int)u2;
	}

	return 0;
	}

/**	/**
* Return a quoted string with the full pathname of the indicated filename.	* Return a quoted string with the full pathname of the indicated filename.
* The string " (in MODNAME)" may also be appended. The returned pointer	* The string " (in MODNAME)" may also be appended. The returned pointer
Line 1104 char full_fname(const char fn)	Line 1284 char full_fname(const char fn)
} else	} else
m1 = m2 = m3 = "";	m1 = m2 = m3 = "";

if (asprintf(&result, "\"%s%s%s\"%s%s%s", p1, p2, fn, m1, m2, m3) <= 0)	if (asprintf(&result, "\"%s%s%s\"%s%s%s", p1, p2, fn, m1, m2, m3) < 0)
out_of_memory("full_fname");	out_of_memory("full_fname");

return result;	return result;
Line 1168 int handle_partial_dir(const char *fname, int create)	Line 1348 int handle_partial_dir(const char *fname, int create)
}	}
statret = -1;	statret = -1;
}	}
if (statret < 0 && do_mkdir(dir, 0700) < 0) {	if (statret < 0 && make_path(dir, 0700, 0) < 0) {
*fn = '/';	*fn = '/';
return 0;	return 0;
}	}
Line 1238 int unsafe_symlink(const char dest, const char src)	Line 1418 int unsafe_symlink(const char dest, const char src)
return depth < 0;	return depth < 0;
}	}

#define HUMANIFY(mult) \
do { \
if (num >= mult \|\| num <= -mult) { \
double dnum = (double)num / mult; \
char units; \
if (num < 0) \
dnum = -dnum; \
if (dnum < mult) \
units = 'K'; \
else if ((dnum /= mult) < mult) \
units = 'M'; \
else { \
dnum /= mult; \
units = 'G'; \
} \
if (num < 0) \
dnum = -dnum; \
snprintf(bufs[n], sizeof bufs[0], "%.2f%c", dnum, units); \
return bufs[n]; \
} \
} while (0)

/* Return the int64 number as a string. If the --human-readable option was
* specified, we may output the number in K, M, or G units. We can return
* up to 4 buffers at a time. */
char *human_num(int64 num)
{
static char bufs[4][128]; /* more than enough room */
static unsigned int n;
char *s;
int negated;

n = (n + 1) % (sizeof bufs / sizeof bufs[0]);

if (human_readable) {
if (human_readable == 1)
HUMANIFY(1000);
else
HUMANIFY(1024);
}

s = bufs[n] + sizeof bufs[0] - 1;
*s = '\0';

if (!num)
*--s = '0';
if (num < 0) {
/* A maximum-size negated number can't fit as a positive,
* so do one digit in negated form to start us off. */
*--s = (char)(-(num % 10)) + '0';
num = -(num / 10);
negated = 1;
} else
negated = 0;

while (num) {
*--s = (char)(num % 10) + '0';
num /= 10;
}

if (negated)
*--s = '-';

return s;
}

/* Return the double number as a string. If the --human-readable option was
* specified, we may output the number in K, M, or G units. We use a buffer
* from human_num() to return our result. */
char *human_dnum(double dnum, int decimal_digits)
{
char *buf = human_num(dnum);
int len = strlen(buf);
if (isDigit(buf + len - 1)) {
/* There's extra room in buf prior to the start of the num. */
buf -= decimal_digits + 2;
snprintf(buf, len + decimal_digits + 3, "%.*f", decimal_digits, dnum);
}
return buf;
}

/* Return the date and time as a string. Some callers tweak returned buf. */	/* Return the date and time as a string. Some callers tweak returned buf. */
char *timestring(time_t t)	char *timestring(time_t t)
{	{
static char TimeBuf[200];	static int ndx = 0;
	static char buffers[4][20]; /* We support 4 simultaneous timestring results. */
	char *TimeBuf = buffers[ndx = (ndx + 1) % 4];
struct tm *tm = localtime(&t);	struct tm *tm = localtime(&t);
char *p;	int len = snprintf(TimeBuf, sizeof buffers[0], "%4d/%02d/%02d %02d:%02d:%02d",
	(int)tm->tm_year + 1900, (int)tm->tm_mon + 1, (int)tm->tm_mday,
	(int)tm->tm_hour, (int)tm->tm_min, (int)tm->tm_sec);
	assert(len > 0); /* Silence gcc warning */

#ifdef HAVE_STRFTIME
strftime(TimeBuf, sizeof TimeBuf - 1, "%Y/%m/%d %H:%M:%S", tm);
#else
strlcpy(TimeBuf, asctime(tm), sizeof TimeBuf);
#endif

if ((p = strchr(TimeBuf, '\n')) != NULL)
*p = '\0';

return TimeBuf;	return TimeBuf;
}	}

/**
* Sleep for a specified number of milliseconds.
*
* Always returns TRUE. (In the future it might return FALSE if
* interrupted.)
**/
int msleep(int t)
{
int tdiff = 0;
struct timeval tval, t1, t2;

gettimeofday(&t1, NULL);

while (tdiff < t) {
tval.tv_sec = (t-tdiff)/1000;
tval.tv_usec = 1000*((t-tdiff)%1000);

errno = 0;
select(0,NULL,NULL, NULL, &tval);

gettimeofday(&t2, NULL);
tdiff = (t2.tv_sec - t1.tv_sec)*1000 +
(t2.tv_usec - t1.tv_usec)/1000;
}

return True;
}

/* Determine if two time_t values are equivalent (either exact, or in	/* Determine if two time_t values are equivalent (either exact, or in
* the modification timestamp window established by --modify-window).	* the modification timestamp window established by --modify-window).
*	* Returns 1 if the times the "same", or 0 if they are different. */
* @retval 0 if the times should be treated as the same	int same_time(time_t f1_sec, unsigned long f1_nsec, time_t f2_sec, unsigned long f2_nsec)
*
* @retval +1 if the first is later
*
* @retval -1 if the 2nd is later
**/
int cmp_time(time_t file1, time_t file2)
{	{
if (file2 > file1) {	if (modify_window == 0)
if (file2 - file1 <= modify_window)	return f1_sec == f2_sec;
return 0;	if (modify_window < 0)
return -1;	return f1_sec == f2_sec && f1_nsec == f2_nsec;
}	/* The nano seconds doesn't figure into these checks -- time windows don't care about that. */
if (file1 - file2 <= modify_window)	if (f2_sec > f1_sec)
return 0;	return f2_sec - f1_sec <= modify_window;
return 1;	return f1_sec - f2_sec <= modify_window;
}	}


#ifdef __INSURE__XX	#ifdef __INSURE__XX
#include <dlfcn.h>	#include <dlfcn.h>

Line 1399 int cmp_time(time_t file1, time_t file2)	Line 1459 int cmp_time(time_t file1, time_t file2)
int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)	int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
{	{
static int (*fn)();	static int (*fn)();
int ret;	int ret, pid_int = getpid();
char *cmd;	char *cmd;

asprintf(&cmd, "/usr/X11R6/bin/xterm -display :0 -T Panic -n Panic -e /bin/sh -c 'cat /tmp/ierrs.*.%d ; gdb /proc/%d/exe %d'",	if (asprintf(&cmd,
getpid(), getpid(), getpid());	"/usr/X11R6/bin/xterm -display :0 -T Panic -n Panic -e /bin/sh -c 'cat /tmp/ierrs.*.%d ; "
	"gdb /proc/%d/exe %d'", pid_int, pid_int, pid_int) < 0)
	return -1;

if (!fn) {	if (!fn) {
static void *h;	static void *h;
Line 1421 int _Insure_trap_error(int a1, int a2, int a3, int a4,	Line 1483 int _Insure_trap_error(int a1, int a2, int a3, int a4,
}	}
#endif	#endif

#define MALLOC_MAX 0x40000000

void *_new_array(unsigned long num, unsigned int size, int use_calloc)
{
if (num >= MALLOC_MAX/size)
return NULL;
return use_calloc ? calloc(num, size) : malloc(num * size);
}

void _realloc_array(void ptr, unsigned int size, size_t num)
{
if (num >= MALLOC_MAX/size)
return NULL;
if (!ptr)
return malloc(size * num);
return realloc(ptr, size * num);
}

/* Take a filename and filename length and return the most significant	/* Take a filename and filename length and return the most significant
* filename suffix we can find. This ignores suffixes such as "~",	* filename suffix we can find. This ignores suffixes such as "~",
* ".bak", ".orig", ".~1~", etc. */	* ".bak", ".orig", ".~1~", etc. */
Line 1475 const char find_filename_suffix(const char fn, int f	Line 1519 const char find_filename_suffix(const char fn, int f
} else if (s_len == 5) {	} else if (s_len == 5) {
if (strcmp(s+1, "orig") == 0)	if (strcmp(s+1, "orig") == 0)
continue;	continue;
} else if (s_len > 2 && had_tilde	} else if (s_len > 2 && had_tilde && s[1] == '~' && isDigit(s + 2))
&& s[1] == '~' && isDigit(s + 2))
continue;	continue;
*len_ptr = s_len;	*len_ptr = s_len;
suf = s;	suf = s;
Line 1487 const char find_filename_suffix(const char fn, int f	Line 1530 const char find_filename_suffix(const char fn, int f
if (!isDigit(s))	if (!isDigit(s))
return suf;	return suf;
}	}
/* An all-digit suffix may not be that signficant. */	/* An all-digit suffix may not be that significant. */
s = suf;	s = suf;
}	}

Line 1503 const char find_filename_suffix(const char fn, int f	Line 1546 const char find_filename_suffix(const char fn, int f

#define UNIT (1 << 16)	#define UNIT (1 << 16)

uint32 fuzzy_distance(const char s1, int len1, const char s2, int len2)	uint32 fuzzy_distance(const char s1, unsigned len1, const char s2, unsigned len2)
{	{
uint32 a[MAXPATHLEN], diag, above, left, diag_inc, above_inc, left_inc;	uint32 a[MAXPATHLEN], diag, above, left, diag_inc, above_inc, left_inc;
int32 cost;	int32 cost;
int i1, i2;	unsigned i1, i2;

if (!len1 \|\| !len2) {	if (!len1 \|\| !len2) {
if (!len1) {	if (!len1) {
Line 1551 uint32 fuzzy_distance(const char *s1, int len1, const	Line 1594 uint32 fuzzy_distance(const char *s1, int len1, const
#define BB_PER_SLOT_INTS (BB_SLOT_SIZE / 4) /* Number of int32s per slot */	#define BB_PER_SLOT_INTS (BB_SLOT_SIZE / 4) /* Number of int32s per slot */

struct bitbag {	struct bitbag {
uint32 **bits;	uint32 **bits;
int slot_cnt;	int slot_cnt;
};	};

struct bitbag *bitbag_create(int max_ndx)	struct bitbag *bitbag_create(int max_ndx)
Line 1560 struct bitbag *bitbag_create(int max_ndx)	Line 1603 struct bitbag *bitbag_create(int max_ndx)
struct bitbag *bb = new(struct bitbag);	struct bitbag *bb = new(struct bitbag);
bb->slot_cnt = (max_ndx + BB_PER_SLOT_BITS - 1) / BB_PER_SLOT_BITS;	bb->slot_cnt = (max_ndx + BB_PER_SLOT_BITS - 1) / BB_PER_SLOT_BITS;

if (!(bb->bits = (uint32*)calloc(bb->slot_cnt, sizeof (uint32))))	bb->bits = new_array0(uint32*, bb->slot_cnt);
out_of_memory("bitbag_create");

return bb;	return bb;
}	}
Line 1571 void bitbag_set_bit(struct bitbag *bb, int ndx)	Line 1613 void bitbag_set_bit(struct bitbag *bb, int ndx)
int slot = ndx / BB_PER_SLOT_BITS;	int slot = ndx / BB_PER_SLOT_BITS;
ndx %= BB_PER_SLOT_BITS;	ndx %= BB_PER_SLOT_BITS;

if (!bb->bits[slot]) {	if (!bb->bits[slot])
if (!(bb->bits[slot] = (uint32*)calloc(BB_PER_SLOT_INTS, 4)))	bb->bits[slot] = new_array0(uint32, BB_PER_SLOT_INTS);
out_of_memory("bitbag_set_bit");
}

bb->bits[slot][ndx/32] \|= 1u << (ndx % 32);	bb->bits[slot][ndx/32] \|= 1u << (ndx % 32);
}	}
Line 1642 void flist_ndx_push(flist_ndx_list *lp, int ndx)	Line 1682 void flist_ndx_push(flist_ndx_list *lp, int ndx)
{	{
struct flist_ndx_item *item;	struct flist_ndx_item *item;

if (!(item = new(struct flist_ndx_item)))	item = new(struct flist_ndx_item);
out_of_memory("flist_ndx_push");
item->next = NULL;	item->next = NULL;
item->ndx = ndx;	item->ndx = ndx;
if (lp->tail)	if (lp->tail)
Line 1671 int flist_ndx_pop(flist_ndx_list *lp)	Line 1710 int flist_ndx_pop(flist_ndx_list *lp)
return ndx;	return ndx;
}	}

void expand_item_list(item_list lp, size_t item_size,	/* Make sure there is room for one more item in the item list. If there
const char *desc, int incr)	* is not, expand the list as indicated by the value of "incr":
	* - if incr < 0 then increase the malloced size by -1 * incr
	* - if incr >= 0 then either make the malloced size equal to "incr"
	* or (if that's not large enough) double the malloced size
	* After the size check, the list's count is incremented by 1 and a pointer
	* to the "new" list item is returned.
	*/
	void expand_item_list(item_list lp, size_t item_size, const char *desc, int incr)
{	{
/* First time through, 0 <= 0, so list is expanded. */	/* First time through, 0 <= 0, so list is expanded. */
if (lp->malloced <= lp->count) {	if (lp->malloced <= lp->count) {
void *new_ptr;	void *new_ptr;
size_t new_size = lp->malloced;	size_t expand_size;
if (incr < 0)	if (incr < 0)
new_size += -incr; /* increase slowly */	expand_size = -incr; /* increase slowly */
else if (new_size < (size_t)incr)	else if (lp->malloced < (size_t)incr)
new_size += incr;	expand_size = incr - lp->malloced;
	else if (lp->malloced)
	expand_size = lp->malloced; /* double in size */
else	else
new_size *= 2;	expand_size = 1;
if (new_size < lp->malloced)	if (SIZE_MAX/item_size - expand_size < lp->malloced)
overflow_exit("expand_item_list");	overflow_exit("expand_item_list");
/* Using _realloc_array() lets us pass the size, not a type. */	expand_size += lp->malloced;
new_ptr = _realloc_array(lp->items, item_size, new_size);	new_ptr = realloc_buf(lp->items, expand_size * item_size);
if (verbose >= 4) {	if (DEBUG_GTE(FLIST, 3)) {
rprintf(FINFO, "[%s] expand %s to %.0f bytes, did%s move\n",	rprintf(FINFO, "[%s] expand %s to %s bytes, did%s move\n",
who_am_i(), desc, (double)new_size * item_size,	who_am_i(), desc, big_num(expand_size * item_size),
new_ptr == lp->items ? " not" : "");	new_ptr == lp->items ? " not" : "");
}	}
if (!new_ptr)
out_of_memory("expand_item_list");

lp->items = new_ptr;	lp->items = new_ptr;
lp->malloced = new_size;	lp->malloced = expand_size;
}	}
return (char)lp->items + (lp->count++ item_size);	return (char)lp->items + (lp->count++ item_size);
	}

	/* This zeroing of memory won't be optimized away by the compiler. */
	void force_memzero(void *buf, size_t len)
	{
	volatile uchar *z = buf;
	while (len-- > 0)
	*z++ = '\0';
}	}

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.1
changed lines
	Added in v.1.1.1.4