X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=bacula%2Fsrc%2Ffindlib%2Fcreate_file.c;h=9144bfc10a4a0614693cb7dd90e2bb96df431466;hb=048846892d6f807ce25b8901845685e8047a2725;hp=500061d25a1eb343516d9ed41e8f5213d93467b3;hpb=6e8326bfdba80ef6bfcf2f2624f2d8d733d00f9d;p=bacula%2Fbacula diff --git a/bacula/src/findlib/create_file.c b/bacula/src/findlib/create_file.c index 500061d25a..9144bfc10a 100644 --- a/bacula/src/findlib/create_file.c +++ b/bacula/src/findlib/create_file.c @@ -7,22 +7,17 @@ * */ /* - Copyright (C) 2000-2004 Kern Sibbald and John Walker + Copyright (C) 2000-2005 Kern Sibbald 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; either version 2 of - the License, or (at your option) any later version. + modify it under the terms of the GNU General Public License + version 2 as amended with additional clauses defined in the + file LICENSE in the main source directory. 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., 59 Temple Place - Suite 330, Boston, - MA 02111-1307, USA. + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + the file LICENSE for additional details. */ @@ -45,19 +40,19 @@ static int path_already_seen(JCR *jcr, char *path, int pnl); /* * Create the file, or the directory * - * fname is the original filename + * fname is the original filename * ofile is the output filename (may be in a different directory) * - * Returns: CF_SKIP if file should be skipped - * CF_ERROR on error - * CF_EXTRACT file created and data to restore - * CF_CREATED file created no data to restore + * Returns: CF_SKIP if file should be skipped + * CF_ERROR on error + * CF_EXTRACT file created and data to restore + * CF_CREATED file created no data to restore * * Note, we create the file here, except for special files, - * we do not set the attributes because we want to first + * we do not set the attributes because we want to first * write the file, then when the writing is done, set the * attributes. - * So, we return with the file descriptor open for normal + * So, we return with the file descriptor open for normal * files. * */ @@ -70,7 +65,7 @@ int create_file(JCR *jcr, ATTR *attr, BFILE *bfd, int replace) bool exists = false; struct stat mstatp; - if (is_win32_stream(attr->data_stream)) { + if (is_win32_stream(attr->data_stream)) { set_win32_backup(bfd); } else { set_portable_backup(bfd); @@ -87,44 +82,45 @@ int create_file(JCR *jcr, ATTR *attr, BFILE *bfd, int replace) exists = true; switch (replace) { case REPLACE_IFNEWER: - if (attr->statp.st_mtime <= mstatp.st_mtime) { + if (attr->statp.st_mtime <= mstatp.st_mtime) { Jmsg(jcr, M_SKIPPED, 0, _("File skipped. Not newer: %s\n"), attr->ofname); - return CF_SKIP; - } - break; + return CF_SKIP; + } + break; case REPLACE_IFOLDER: - if (attr->statp.st_mtime >= mstatp.st_mtime) { + if (attr->statp.st_mtime >= mstatp.st_mtime) { Jmsg(jcr, M_SKIPPED, 0, _("File skipped. Not older: %s\n"), attr->ofname); - return CF_SKIP; - } - break; + return CF_SKIP; + } + break; case REPLACE_NEVER: Jmsg(jcr, M_SKIPPED, 0, _("File skipped. Already exists: %s\n"), attr->ofname); - return CF_SKIP; + return CF_SKIP; case REPLACE_ALWAYS: - break; + break; } } switch (attr->type) { - case FT_LNKSAVED: /* Hard linked, file already saved */ + case FT_LNKSAVED: /* Hard linked, file already saved */ case FT_LNK: case FT_RAW: case FT_FIFO: case FT_SPEC: - case FT_REGE: /* empty file */ - case FT_REG: /* regular file */ + case FT_REGE: /* empty file */ + case FT_REG: /* regular file */ if (exists) { - /* Get rid of old copy */ - if (unlink(attr->ofname) == -1) { + /* Get rid of old copy */ + if (unlink(attr->ofname) == -1) { + berrno be; Jmsg(jcr, M_ERROR, 0, _("File %s already exists and could not be replaced. ERR=%s.\n"), - attr->ofname, strerror(errno)); - /* Continue despite error */ - } + attr->ofname, be.strerror()); + /* Continue despite error */ + } } - /* + /* * Here we do some preliminary work for all the above * types to create the path to the file if it does * not already exist. Below, we will split to @@ -132,7 +128,7 @@ int create_file(JCR *jcr, ATTR *attr, BFILE *bfd, int replace) */ pnl = separate_path_and_file(jcr, attr->fname, attr->ofname); if (pnl < 0) { - return CF_ERROR; + return CF_ERROR; } /* @@ -140,24 +136,24 @@ int create_file(JCR *jcr, ATTR *attr, BFILE *bfd, int replace) * directory. Assume that the directory already exists. */ if (pnl > 0) { - char savechr; - savechr = attr->ofname[pnl]; - attr->ofname[pnl] = 0; /* terminate path */ + char savechr; + savechr = attr->ofname[pnl]; + attr->ofname[pnl] = 0; /* terminate path */ - if (!path_already_seen(jcr, attr->ofname, pnl)) { - Dmsg1(50, "Make path %s\n", attr->ofname); - /* - * If we need to make the directory, ensure that it is with - * execute bit set (i.e. parent_mode), and preserve what already - * exists. Normally, this should do nothing. - */ - if (make_path(jcr, attr->ofname, parent_mode, parent_mode, uid, gid, 1, NULL) != 0) { + if (!path_already_seen(jcr, attr->ofname, pnl)) { + Dmsg1(100, "Make path %s\n", attr->ofname); + /* + * If we need to make the directory, ensure that it is with + * execute bit set (i.e. parent_mode), and preserve what already + * exists. Normally, this should do nothing. + */ + if (make_path(jcr, attr->ofname, parent_mode, parent_mode, uid, gid, 1, NULL) != 0) { Dmsg1(10, "Could not make path. %s\n", attr->ofname); - attr->ofname[pnl] = savechr; /* restore full name */ - return CF_ERROR; - } - } - attr->ofname[pnl] = savechr; /* restore full name */ + attr->ofname[pnl] = savechr; /* restore full name */ + return CF_ERROR; + } + } + attr->ofname[pnl] = savechr; /* restore full name */ } /* Now we do the specific work for each file type */ @@ -165,88 +161,156 @@ int create_file(JCR *jcr, ATTR *attr, BFILE *bfd, int replace) case FT_REGE: case FT_REG: Dmsg1(100, "Create file %s\n", attr->ofname); - mode = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY; /* O_NOFOLLOW; */ - if (IS_CTG(attr->statp.st_mode)) { - mode |= O_CTG; /* set contiguous bit if needed */ - } + mode = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY; /* O_NOFOLLOW; */ + if (IS_CTG(attr->statp.st_mode)) { + mode |= O_CTG; /* set contiguous bit if needed */ + } Dmsg1(50, "Create file: %s\n", attr->ofname); - if (is_bopen(bfd)) { + if (is_bopen(bfd)) { Jmsg1(jcr, M_ERROR, 0, "bpkt already open fid=%d\n", bfd->fid); - } - if ((bopen(bfd, attr->ofname, mode, S_IRUSR | S_IWUSR)) < 0) { - Jmsg2(jcr, M_ERROR, 0, _("Could not create %s: ERR=%s\n"), - attr->ofname, berror(bfd)); - return CF_ERROR; - } - return CF_EXTRACT; + bclose(bfd); + } + /* + * If the open fails, we attempt to cd into the directory + * and create the file with a relative path rather than + * the full absolute path. This is for Win32 where + * path names may be too long to create. + */ + if ((bopen(bfd, attr->ofname, mode, S_IRUSR | S_IWUSR)) < 0) { + berrno be; + int stat; + Dmsg2(000, "bopen failed errno=%d: ERR=%s\n", bfd->berrno, + be.strerror(bfd->berrno)); + if (strlen(attr->ofname) > 250) { /* Microsoft limitation */ + char savechr; + char *p, *e; + struct saved_cwd cwd; + savechr = attr->ofname[pnl]; + attr->ofname[pnl] = 0; /* terminate path */ + Dmsg1(000, "Do chdir %s\n", attr->ofname); + if (save_cwd(&cwd) != 0) { + Jmsg0(jcr, M_ERROR, 0, _("Could not save_dirn")); + attr->ofname[pnl] = savechr; + return CF_ERROR; + } + p = attr->ofname; + while ((e = strchr(p, '/'))) { + *e = 0; + if (chdir(p) < 0) { + berrno be; + Jmsg2(jcr, M_ERROR, 0, _("Could not chdir to %s: ERR=%s\n"), + attr->ofname, be.strerror()); + restore_cwd(&cwd, NULL, NULL); + free_cwd(&cwd); + attr->ofname[pnl] = savechr; + *e = '/'; + return CF_ERROR; + } + *e = '/'; + p = e + 1; + } + if (chdir(p) < 0) { + berrno be; + Jmsg2(jcr, M_ERROR, 0, _("Could not chdir to %s: ERR=%s\n"), + attr->ofname, be.strerror()); + restore_cwd(&cwd, NULL, NULL); + free_cwd(&cwd); + attr->ofname[pnl] = savechr; + return CF_ERROR; + } + attr->ofname[pnl] = savechr; + Dmsg1(000, "Do open %s\n", &attr->ofname[pnl+1]); + if ((bopen(bfd, &attr->ofname[pnl+1], mode, S_IRUSR | S_IWUSR)) < 0) { + stat = CF_ERROR; + } else { + stat = CF_EXTRACT; + } + restore_cwd(&cwd, NULL, NULL); + free_cwd(&cwd); + if (stat == CF_EXTRACT) { + return CF_EXTRACT; + } + } + Jmsg2(jcr, M_ERROR, 0, _("Could not create %s: ERR=%s\n"), + attr->ofname, be.strerror(bfd->berrno)); + return CF_ERROR; + } + return CF_EXTRACT; #ifndef HAVE_WIN32 // none of these exists on MS Windows - case FT_RAW: /* Bacula raw device e.g. /dev/sda1 */ - case FT_FIFO: /* Bacula fifo to save data */ - case FT_SPEC: - if (S_ISFIFO(attr->statp.st_mode)) { + case FT_RAW: /* Bacula raw device e.g. /dev/sda1 */ + case FT_FIFO: /* Bacula fifo to save data */ + case FT_SPEC: + if (S_ISFIFO(attr->statp.st_mode)) { Dmsg1(200, "Restore fifo: %s\n", attr->ofname); - if (mkfifo(attr->ofname, attr->statp.st_mode) != 0 && errno != EEXIST) { - Jmsg2(jcr, M_ERROR, 0, _("Cannot make fifo %s: ERR=%s\n"), - attr->ofname, strerror(errno)); - return CF_ERROR; - } - } else { + if (mkfifo(attr->ofname, attr->statp.st_mode) != 0 && errno != EEXIST) { + berrno be; + Jmsg2(jcr, M_ERROR, 0, _("Cannot make fifo %s: ERR=%s\n"), + attr->ofname, be.strerror()); + return CF_ERROR; + } + } else { Dmsg1(200, "Restore node: %s\n", attr->ofname); - if (mknod(attr->ofname, attr->statp.st_mode, attr->statp.st_rdev) != 0 && errno != EEXIST) { - Jmsg2(jcr, M_ERROR, 0, _("Cannot make node %s: ERR=%s\n"), - attr->ofname, strerror(errno)); - return CF_ERROR; - } - } - if (attr->type == FT_RAW || attr->type == FT_FIFO) { - btimer_t *tid; + if (mknod(attr->ofname, attr->statp.st_mode, attr->statp.st_rdev) != 0 && errno != EEXIST) { + berrno be; + Jmsg2(jcr, M_ERROR, 0, _("Cannot make node %s: ERR=%s\n"), + attr->ofname, be.strerror()); + return CF_ERROR; + } + } + if (attr->type == FT_RAW || attr->type == FT_FIFO) { + btimer_t *tid; Dmsg1(200, "FT_RAW|FT_FIFO %s\n", attr->ofname); - mode = O_WRONLY | O_BINARY; - /* Timeout open() in 60 seconds */ - if (attr->type == FT_FIFO) { - tid = start_thread_timer(pthread_self(), 60); - } else { - tid = NULL; - } - if (is_bopen(bfd)) { + mode = O_WRONLY | O_BINARY; + /* Timeout open() in 60 seconds */ + if (attr->type == FT_FIFO) { + tid = start_thread_timer(pthread_self(), 60); + } else { + tid = NULL; + } + if (is_bopen(bfd)) { Jmsg1(jcr, M_ERROR, 0, "bpkt already open fid=%d\n", bfd->fid); - } - if ((bopen(bfd, attr->ofname, mode, 0)) < 0) { - Jmsg2(jcr, M_ERROR, 0, _("Could not open %s: ERR=%s\n"), - attr->ofname, berror(bfd)); - stop_thread_timer(tid); - return CF_ERROR; - } - stop_thread_timer(tid); - return CF_EXTRACT; - } + } + if ((bopen(bfd, attr->ofname, mode, 0)) < 0) { + berrno be; + be.set_errno(bfd->berrno); + Jmsg2(jcr, M_ERROR, 0, _("Could not open %s: ERR=%s\n"), + attr->ofname, be.strerror()); + stop_thread_timer(tid); + return CF_ERROR; + } + stop_thread_timer(tid); + return CF_EXTRACT; + } Dmsg1(200, "FT_SPEC %s\n", attr->ofname); - return CF_CREATED; + return CF_CREATED; case FT_LNK: Dmsg2(130, "FT_LNK should restore: %s -> %s\n", attr->ofname, attr->olname); - if (symlink(attr->olname, attr->ofname) != 0 && errno != EEXIST) { + if (symlink(attr->olname, attr->ofname) != 0 && errno != EEXIST) { + berrno be; Jmsg3(jcr, M_ERROR, 0, _("Could not symlink %s -> %s: ERR=%s\n"), - attr->ofname, attr->olname, strerror(errno)); - return CF_ERROR; - } - return CF_CREATED; + attr->ofname, attr->olname, be.strerror()); + return CF_ERROR; + } + return CF_CREATED; - case FT_LNKSAVED: /* Hard linked, file already saved */ + case FT_LNKSAVED: /* Hard linked, file already saved */ Dmsg2(130, "Hard link %s => %s\n", attr->ofname, attr->olname); - if (link(attr->olname, attr->ofname) != 0) { + if (link(attr->olname, attr->ofname) != 0) { + berrno be; Jmsg3(jcr, M_ERROR, 0, _("Could not hard link %s -> %s: ERR=%s\n"), - attr->ofname, attr->olname, strerror(errno)); - return CF_ERROR; - } - return CF_CREATED; + attr->ofname, attr->olname, be.strerror()); + return CF_ERROR; + } + return CF_CREATED; #endif } /* End inner switch */ - case FT_DIR: + case FT_DIRBEGIN: + case FT_DIREND: Dmsg2(200, "Make dir mode=%o dir=%s\n", new_mode, attr->ofname); if (make_path(jcr, attr->ofname, new_mode, parent_mode, uid, gid, 0, NULL) != 0) { - return CF_ERROR; + return CF_ERROR; } /* * If we are using the Win32 Backup API, we open the @@ -254,17 +318,25 @@ int create_file(JCR *jcr, ATTR *attr, BFILE *bfd, int replace) * and saved. */ if (!is_portable_backup(bfd)) { - if (is_bopen(bfd)) { + if (is_bopen(bfd)) { Jmsg1(jcr, M_ERROR, 0, "bpkt already open fid=%d\n", bfd->fid); - } - if ((bopen(bfd, attr->ofname, O_WRONLY|O_BINARY, 0)) < 0) { - Jmsg2(jcr, M_ERROR, 0, _("Could not open %s: ERR=%s\n"), - attr->ofname, berror(bfd)); - return CF_ERROR; - } - return CF_EXTRACT; + } + if ((bopen(bfd, attr->ofname, O_WRONLY|O_BINARY, 0)) < 0) { + berrno be; + be.set_errno(bfd->berrno); +#ifdef HAVE_WIN32 + /* Check for trying to create a drive, if so, skip */ + if (attr->ofname[1] == ':' && attr->ofname[2] == '/' && attr->ofname[3] == 0) { + return CF_SKIP; + } +#endif + Jmsg2(jcr, M_ERROR, 0, _("Could not open %s: ERR=%s\n"), + attr->ofname, be.strerror()); + return CF_ERROR; + } + return CF_EXTRACT; } else { - return CF_CREATED; + return CF_CREATED; } /* The following should not occur */ @@ -288,9 +360,9 @@ int create_file(JCR *jcr, ATTR *attr, BFILE *bfd, int replace) /* * Returns: > 0 index into path where last path char is. - * 0 no path - * -1 filename is zero length - */ + * 0 no path + * -1 filename is zero length + */ static int separate_path_and_file(JCR *jcr, char *fname, char *ofile) { char *f, *p; @@ -299,7 +371,7 @@ static int separate_path_and_file(JCR *jcr, char *fname, char *ofile) /* Separate pathname and filename */ for (p=f=ofile; *p; p++) { if (*p == '/') { - f = p; /* possible filename */ + f = p; /* possible filename */ } } if (*f == '/') { @@ -314,12 +386,12 @@ static int separate_path_and_file(JCR *jcr, char *fname, char *ofile) Jmsg1(jcr, M_ERROR, 0, _("Zero length filename: %s\n"), fname); return -1; } - pnl = f - ofile - 1; + pnl = f - ofile - 1; return pnl; } -/* - * Primitive caching of path to prevent recreating a pathname +/* + * Primitive caching of path to prevent recreating a pathname * each time as long as we remain in the same directory. */ static int path_already_seen(JCR *jcr, char *path, int pnl)