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version 1.1.1.1.2.1, 2013/07/22 00:20:21
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version 1.1.1.3, 2016/11/01 09:54:32
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| * |
* |
| * Copyright (C) 1998 Andrew Tridgell |
* Copyright (C) 1998 Andrew Tridgell |
| * Copyright (C) 2002 Martin Pool |
* Copyright (C) 2002 Martin Pool |
| * Copyright (C) 2003-2009 Wayne Davison | * Copyright (C) 2003-2015 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 |
|
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Line 29
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| #include <sys/attr.h> |
#include <sys/attr.h> |
| #endif |
#endif |
| |
|
| |
#if defined HAVE_SYS_FALLOCATE && !defined HAVE_FALLOCATE |
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#include <sys/syscall.h> |
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#endif |
| |
|
| extern int dry_run; |
extern int dry_run; |
| extern int am_root; |
extern int am_root; |
| |
extern int am_sender; |
| extern int read_only; |
extern int read_only; |
| extern int list_only; |
extern int list_only; |
| extern int preserve_perms; |
extern int preserve_perms; |
|
Line 53 int do_unlink(const char *fname)
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Line 58 int do_unlink(const char *fname)
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| return unlink(fname); |
return unlink(fname); |
| } |
} |
| |
|
| int do_symlink(const char *fname1, const char *fname2) | #ifdef SUPPORT_LINKS |
| | int do_symlink(const char *lnk, const char *fname) |
| { |
{ |
| if (dry_run) return 0; |
if (dry_run) return 0; |
| RETURN_ERROR_IF_RO_OR_LO; |
RETURN_ERROR_IF_RO_OR_LO; |
| return symlink(fname1, fname2); | |
| | #if defined NO_SYMLINK_XATTRS || defined NO_SYMLINK_USER_XATTRS |
| | /* For --fake-super, we create a normal file with mode 0600 |
| | * and write the lnk into it. */ |
| | if (am_root < 0) { |
| | int ok, len = strlen(lnk); |
| | int fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, S_IWUSR|S_IRUSR); |
| | if (fd < 0) |
| | return -1; |
| | ok = write(fd, lnk, len) == len; |
| | if (close(fd) < 0) |
| | ok = 0; |
| | return ok ? 0 : -1; |
| | } |
| | #endif |
| | |
| | return symlink(lnk, fname); |
| } |
} |
| |
|
| |
#if defined NO_SYMLINK_XATTRS || defined NO_SYMLINK_USER_XATTRS |
| |
ssize_t do_readlink(const char *path, char *buf, size_t bufsiz) |
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{ |
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/* For --fake-super, we read the link from the file. */ |
| |
if (am_root < 0) { |
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int fd = do_open_nofollow(path, O_RDONLY); |
| |
if (fd >= 0) { |
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int len = read(fd, buf, bufsiz); |
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close(fd); |
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return len; |
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} |
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if (errno != ELOOP) |
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return -1; |
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/* A real symlink needs to be turned into a fake one on the receiving |
| |
* side, so tell the generator that the link has no length. */ |
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if (!am_sender) |
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return 0; |
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/* Otherwise fall through and let the sender report the real length. */ |
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} |
| |
|
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return readlink(path, buf, bufsiz); |
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} |
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#endif |
| |
#endif |
| |
|
| #ifdef HAVE_LINK |
#ifdef HAVE_LINK |
| int do_link(const char *fname1, const char *fname2) |
int do_link(const char *fname1, const char *fname2) |
| { |
{ |
|
Line 100 int do_mknod(const char *pathname, mode_t mode, dev_t
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Line 147 int do_mknod(const char *pathname, mode_t mode, dev_t
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| if (S_ISSOCK(mode)) { |
if (S_ISSOCK(mode)) { |
| int sock; |
int sock; |
| struct sockaddr_un saddr; |
struct sockaddr_un saddr; |
| |
unsigned int len = strlcpy(saddr.sun_path, pathname, sizeof saddr.sun_path); |
| |
if (len >= sizeof saddr.sun_path) { |
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errno = ENAMETOOLONG; |
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return -1; |
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} |
| #ifdef HAVE_SOCKADDR_UN_LEN |
#ifdef HAVE_SOCKADDR_UN_LEN |
| unsigned int len = | saddr.sun_len = len + 1; |
| #endif |
#endif |
| strlcpy(saddr.sun_path, pathname, sizeof saddr.sun_path); |
|
| #ifdef HAVE_SOCKADDR_UN_LEN |
|
| saddr.sun_len = len >= sizeof saddr.sun_path |
|
| ? sizeof saddr.sun_path : len + 1; |
|
| #endif |
|
| saddr.sun_family = AF_UNIX; |
saddr.sun_family = AF_UNIX; |
| |
|
| if ((sock = socket(PF_UNIX, SOCK_STREAM, 0)) < 0 |
if ((sock = socket(PF_UNIX, SOCK_STREAM, 0)) < 0 |
|
Line 217 void trim_trailing_slashes(char *name)
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Line 264 void trim_trailing_slashes(char *name)
|
| } |
} |
| } |
} |
| |
|
| int do_mkdir_path(char *fname, mode_t mode) |
|
| { |
|
| char fnametmp[MAXPATHLEN], *fnametmpptr; |
|
| STRUCT_STAT st; |
|
| |
|
| if (fname) { |
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| strcpy(fnametmp, fname); |
|
| if ((fnametmpptr = strrchr(fnametmp, '/')) != NULL) { |
|
| *fnametmpptr = '\0'; |
|
| if (do_stat(fnametmp, &st) < 0) |
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| do_mkdir_path(fnametmp, mode); |
|
| } |
|
| } |
|
| return do_mkdir(fname, mode); |
|
| } |
|
| |
|
| int do_mkdir(char *fname, mode_t mode) |
int do_mkdir(char *fname, mode_t mode) |
| { |
{ |
| if (dry_run) return 0; |
if (dry_run) return 0; |
|
Line 390 int do_utime(const char *fname, time_t modtime, UNUSED
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Line 421 int do_utime(const char *fname, time_t modtime, UNUSED
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| #else |
#else |
| #error Need utimes or utime function. |
#error Need utimes or utime function. |
| #endif |
#endif |
| |
|
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#ifdef SUPPORT_PREALLOCATION |
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int do_fallocate(int fd, OFF_T offset, OFF_T length) |
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{ |
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#ifdef FALLOC_FL_KEEP_SIZE |
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#define DO_FALLOC_OPTIONS FALLOC_FL_KEEP_SIZE |
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#else |
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#define DO_FALLOC_OPTIONS 0 |
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#endif |
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RETURN_ERROR_IF(dry_run, 0); |
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RETURN_ERROR_IF_RO_OR_LO; |
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#if defined HAVE_FALLOCATE |
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return fallocate(fd, DO_FALLOC_OPTIONS, offset, length); |
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#elif defined HAVE_SYS_FALLOCATE |
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return syscall(SYS_fallocate, fd, DO_FALLOC_OPTIONS, (loff_t)offset, (loff_t)length); |
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#elif defined HAVE_EFFICIENT_POSIX_FALLOCATE |
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return posix_fallocate(fd, offset, length); |
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#else |
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#error Coding error in SUPPORT_PREALLOCATION logic. |
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#endif |
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} |
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#endif |
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|
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int do_open_nofollow(const char *pathname, int flags) |
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{ |
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#ifndef O_NOFOLLOW |
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STRUCT_STAT f_st, l_st; |
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#endif |
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int fd; |
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|
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if (flags != O_RDONLY) { |
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RETURN_ERROR_IF(dry_run, 0); |
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RETURN_ERROR_IF_RO_OR_LO; |
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#ifndef O_NOFOLLOW |
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/* This function doesn't support write attempts w/o O_NOFOLLOW. */ |
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errno = EINVAL; |
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return -1; |
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#endif |
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} |
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|
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#ifdef O_NOFOLLOW |
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fd = open(pathname, flags|O_NOFOLLOW); |
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#else |
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if (do_lstat(pathname, &l_st) < 0) |
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return -1; |
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if (S_ISLNK(l_st.st_mode)) { |
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errno = ELOOP; |
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return -1; |
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} |
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if ((fd = open(pathname, flags)) < 0) |
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return fd; |
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if (do_fstat(fd, &f_st) < 0) { |
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close_and_return_error: |
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{ |
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int save_errno = errno; |
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close(fd); |
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errno = save_errno; |
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} |
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return -1; |
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} |
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if (l_st.st_dev != f_st.st_dev || l_st.st_ino != f_st.st_ino) { |
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errno = EINVAL; |
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goto close_and_return_error; |
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} |
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#endif |
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|
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return fd; |
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} |