diff options
Diffstat (limited to 'mysql/mysys/my_redel.c')
| -rw-r--r-- | mysql/mysys/my_redel.c | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/mysql/mysys/my_redel.c b/mysql/mysys/my_redel.c new file mode 100644 index 0000000..43e7e73 --- /dev/null +++ b/mysql/mysys/my_redel.c @@ -0,0 +1,132 @@ +/* Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. + + 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 + the Free Software Foundation; version 2 of the License. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ + +#include "mysys_priv.h" +#include "my_sys.h" +#include <my_dir.h> +#include <m_string.h> +#include "mysys_err.h" +#include "my_thread_local.h" + +#ifndef _WIN32 +#include <utime.h> +#else +#include <sys/utime.h> +#endif + + /* + Rename with copy stat form old file + Copy stats from old file to new file, deletes orginal and + changes new file name to old file name + + if MY_REDEL_MAKE_COPY is given, then the orginal file + is renamed to org_name-'current_time'.BAK + + if MY_REDEL_NO_COPY_STAT is given, stats are not copied + from org_name to tmp_name. + */ + +#define REDEL_EXT ".BAK" + +int my_redel(const char *org_name, const char *tmp_name, myf MyFlags) +{ + int error=1; + DBUG_ENTER("my_redel"); + DBUG_PRINT("my",("org_name: '%s' tmp_name: '%s' MyFlags: %d", + org_name,tmp_name,MyFlags)); + + if (!(MyFlags & MY_REDEL_NO_COPY_STAT)) + { + if (my_copystat(org_name,tmp_name,MyFlags) < 0) + goto end; + } + if (MyFlags & MY_REDEL_MAKE_BACKUP) + { + char name_buff[FN_REFLEN+20]; + char ext[20]; + ext[0]='-'; + get_date(ext+1,2+4,(time_t) 0); + my_stpcpy(strend(ext),REDEL_EXT); + if (my_rename(org_name, fn_format(name_buff, org_name, "", ext, 2), + MyFlags)) + goto end; + } + else if (my_delete_allow_opened(org_name, MyFlags)) + goto end; + if (my_rename(tmp_name,org_name,MyFlags)) + goto end; + + error=0; +end: + DBUG_RETURN(error); +} /* my_redel */ + + + /* Copy stat from one file to another */ + /* Return -1 if can't get stat, 1 if wrong type of file */ + +int my_copystat(const char *from, const char *to, int MyFlags) +{ + MY_STAT statbuf; + + if (my_stat(from, &statbuf, MyFlags) == NULL) + return -1; /* Can't get stat on input file */ + + if ((statbuf.st_mode & S_IFMT) != S_IFREG) + return 1; + + /* Copy modes */ + if (chmod(to, statbuf.st_mode & 07777)) + { + set_my_errno(errno); + if (MyFlags & (MY_FAE+MY_WME)) + { + char errbuf[MYSYS_STRERROR_SIZE]; + my_error(EE_CHANGE_PERMISSIONS, MYF(0), from, + errno, my_strerror(errbuf, sizeof(errbuf), errno)); + } + return -1; + } + +#if !defined(_WIN32) + if (statbuf.st_nlink > 1 && MyFlags & MY_LINK_WARNING) + { + if (MyFlags & MY_LINK_WARNING) + my_error(EE_LINK_WARNING,MYF(0),from,statbuf.st_nlink); + } + /* Copy ownership */ + if (chown(to, statbuf.st_uid, statbuf.st_gid)) + { + set_my_errno(errno); + if (MyFlags & (MY_FAE+MY_WME)) + { + char errbuf[MYSYS_STRERROR_SIZE]; + my_error(EE_CHANGE_OWNERSHIP, MYF(0), from, + errno, my_strerror(errbuf, sizeof(errbuf), errno)); + } + return -1; + } +#endif /* !_WIN32 */ + + if (MyFlags & MY_COPYTIME) + { + struct utimbuf timep; + timep.actime = statbuf.st_atime; + timep.modtime = statbuf.st_mtime; + (void) utime((char*) to, &timep);/* Update last accessed and modified times */ + } + + return 0; +} /* my_copystat */ |