1 files changed, 231 insertions, 0 deletions
diff --git a/src/libbb/.svn/text-base/copy_file.c.svn-base b/src/libbb/.svn/text-base/copy_file.c.svn-base
new file mode 100644
index 0000000..fb76669
--- /dev/null
+++ b/src/libbb/.svn/text-base/copy_file.c.svn-base
@@ -0,0 +1,231 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini copy_file implementation for busybox
+ *
+ *
+ * Copyright (C) 2001 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
+ *
+ * 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.
+ *
+ * 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
+ *
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <utime.h>
+#include <errno.h>
+#include <dirent.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "libbb.h"
+
+int copy_file(const char *source, const char *dest, int flags)
+{
+	struct stat source_stat;
+	struct stat dest_stat;
+	int dest_exists = 1;
+	int status = 0;
+
+	if (((flags & FILEUTILS_PRESERVE_SYMLINKS) &&
+			lstat(source, &source_stat) < 0) ||
+			(!(flags & FILEUTILS_PRESERVE_SYMLINKS) &&
+			 stat(source, &source_stat) < 0)) {
+		perror_msg("%s", source);
+		return -1;
+	}
+
+	if (stat(dest, &dest_stat) < 0) {
+		if (errno != ENOENT) {
+			perror_msg("unable to stat `%s'", dest);
+			return -1;
+		}
+		dest_exists = 0;
+	}
+
+	if (dest_exists && source_stat.st_rdev == dest_stat.st_rdev &&
+			source_stat.st_ino == dest_stat.st_ino) {
+		error_msg("`%s' and `%s' are the same file", source, dest);
+		return -1;
+	}
+
+	if (S_ISDIR(source_stat.st_mode)) {
+		DIR *dp;
+		struct dirent *d;
+		mode_t saved_umask = 0;
+
+		if (!(flags & FILEUTILS_RECUR)) {
+			error_msg("%s: omitting directory", source);
+			return -1;
+		}
+
+		/* Create DEST.  */
+		if (dest_exists) {
+			if (!S_ISDIR(dest_stat.st_mode)) {
+				error_msg("`%s' is not a directory", dest);
+				return -1;
+			}
+		} else {
+			mode_t mode;
+			saved_umask = umask(0);
+
+			mode = source_stat.st_mode;
+			if (!(flags & FILEUTILS_PRESERVE_STATUS))
+				mode = source_stat.st_mode & ~saved_umask;
+			mode |= S_IRWXU;
+
+			if (mkdir(dest, mode) < 0) {
+				umask(saved_umask);
+				perror_msg("cannot create directory `%s'", dest);
+				return -1;
+			}
+
+			umask(saved_umask);
+		}
+
+		/* Recursively copy files in SOURCE.  */
+		if ((dp = opendir(source)) == NULL) {
+			perror_msg("unable to open directory `%s'", source);
+			status = -1;
+			goto end;
+		}
+
+		while ((d = readdir(dp)) != NULL) {
+			char *new_source, *new_dest;
+
+			if (strcmp(d->d_name, ".") == 0 ||
+					strcmp(d->d_name, "..") == 0)
+				continue;
+
+			new_source = concat_path_file(source, d->d_name);
+			new_dest = concat_path_file(dest, d->d_name);
+			if (copy_file(new_source, new_dest, flags) < 0)
+				status = -1;
+			free(new_source);
+			free(new_dest);
+		}
+
+		/* ??? What if an error occurs in readdir?  */
+
+		if (closedir(dp) < 0) {
+			perror_msg("unable to close directory `%s'", source);
+			status = -1;
+		}
+
+		if (!dest_exists &&
+				chmod(dest, source_stat.st_mode & ~saved_umask) < 0) {
+			perror_msg("unable to change permissions of `%s'", dest);
+			status = -1;
+		}
+	} else if (S_ISREG(source_stat.st_mode)) {
+		FILE *sfp, *dfp;
+
+		if (dest_exists) {
+			if ((dfp = fopen(dest, "w")) == NULL) {
+				if (!(flags & FILEUTILS_FORCE)) {
+					perror_msg("unable to open `%s'", dest);
+					return -1;
+				}
+
+				if (unlink(dest) < 0) {
+					perror_msg("unable to remove `%s'", dest);
+					return -1;
+				}
+
+				dest_exists = 0;
+			}
+		}
+
+		if (!dest_exists) {
+			int fd;
+
+			if ((fd = open(dest, O_WRONLY|O_CREAT, source_stat.st_mode)) < 0 ||
+					(dfp = fdopen(fd, "w")) == NULL) {
+				if (fd >= 0)
+					close(fd);
+				perror_msg("unable to open `%s'", dest);
+				return -1;
+			}
+		}
+
+		if ((sfp = fopen(source, "r")) == NULL) {
+			fclose(dfp);
+			perror_msg("unable to open `%s'", source);
+			status = -1;
+			goto end;
+		}
+
+		if (copy_file_chunk(sfp, dfp, -1) < 0)
+			status = -1;
+
+		if (fclose(dfp) < 0) {
+			perror_msg("unable to close `%s'", dest);
+			status = -1;
+		}
+
+		if (fclose(sfp) < 0) {
+			perror_msg("unable to close `%s'", source);
+			status = -1;
+		}
+	} else if (S_ISBLK(source_stat.st_mode) || S_ISCHR(source_stat.st_mode) ||
+			S_ISSOCK(source_stat.st_mode)) {
+		if (mknod(dest, source_stat.st_mode, source_stat.st_rdev) < 0) {
+			perror_msg("unable to create `%s'", dest);
+			return -1;
+		}
+	} else if (S_ISFIFO(source_stat.st_mode)) {
+		if (mkfifo(dest, source_stat.st_mode) < 0) {
+			perror_msg("cannot create fifo `%s'", dest);
+			return -1;
+		}
+	} else if (S_ISLNK(source_stat.st_mode)) {
+		char *lpath = xreadlink(source);
+		if (symlink(lpath, dest) < 0) {
+			perror_msg("cannot create symlink `%s'", dest);
+			return -1;
+		}
+		free(lpath);
+
+#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
+		if (flags & FILEUTILS_PRESERVE_STATUS)
+			if (lchown(dest, source_stat.st_uid, source_stat.st_gid) < 0)
+				perror_msg("unable to preserve ownership of `%s'", dest);
+#endif
+		return 0;
+	} else {
+		error_msg("internal error: unrecognized file type");
+		return -1;
+	}
+
+end:
+
+	if (flags & FILEUTILS_PRESERVE_STATUS) {
+		struct utimbuf times;
+
+		times.actime = source_stat.st_atime;
+		times.modtime = source_stat.st_mtime;
+		if (utime(dest, &times) < 0)
+			perror_msg("unable to preserve times of `%s'", dest);
+		if (chown(dest, source_stat.st_uid, source_stat.st_gid) < 0) {
+			source_stat.st_mode &= ~(S_ISUID | S_ISGID);
+			perror_msg("unable to preserve ownership of `%s'", dest);
+		}
+		if (chmod(dest, source_stat.st_mode) < 0)
+			perror_msg("unable to preserve permissions of `%s'", dest);
+	}
+
+	return status;
+}