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authorGlenn L McGrath2001-04-11 16:23:35 +0000
committerGlenn L McGrath2001-04-11 16:23:35 +0000
commit4949faf4b2090ca23c2aeb34535fdbe57754913a (patch)
treeb292a499341d3c0314283e2822a93241a1c4e1dd /libbb/copy_file.c
parent5b20d02ea98c41bbd8a49cdbb84f425fa9ef446e (diff)
downloadbusybox-4949faf4b2090ca23c2aeb34535fdbe57754913a.zip
busybox-4949faf4b2090ca23c2aeb34535fdbe57754913a.tar.gz
copy_file_chunk uses streams now.
Diffstat (limited to 'libbb/copy_file.c')
-rw-r--r--libbb/copy_file.c133
1 files changed, 75 insertions, 58 deletions
diff --git a/libbb/copy_file.c b/libbb/copy_file.c
index 64b65b9..eb9cb1a 100644
--- a/libbb/copy_file.c
+++ b/libbb/copy_file.c
@@ -41,49 +41,54 @@
* -Erik Andersen
*/
int
-copy_file(const char *srcName, const char *destName,
- int setModes, int followLinks, int forceFlag)
+copy_file(const char *src_name, const char *dst_name,
+ int set_modes, int follow_links, int force_flag, int quiet_flag)
{
- int rfd;
- int wfd;
- int status;
+ FILE *src_file = NULL;
+ FILE *dst_file = NULL;
struct stat srcStatBuf;
struct stat dstStatBuf;
struct utimbuf times;
+ int src_status;
+ int dst_status;
+
+ if (follow_links == TRUE) {
+ src_status = stat(src_name, &srcStatBuf);
+ dst_status = stat(dst_name, &dstStatBuf);
+ } else {
+ src_status = lstat(src_name, &srcStatBuf);
+ dst_status = lstat(dst_name, &dstStatBuf);
+ }
- if (followLinks == TRUE)
- status = stat(srcName, &srcStatBuf);
- else
- status = lstat(srcName, &srcStatBuf);
-
- if (status < 0) {
- perror_msg("%s", srcName);
+ if (src_status < 0) {
+ if (!quiet_flag) {
+ perror_msg("%s", src_name);
+ }
return FALSE;
}
- if (followLinks == TRUE)
- status = stat(destName, &dstStatBuf);
- else
- status = lstat(destName, &dstStatBuf);
-
- if (status < 0 || forceFlag==TRUE) {
- unlink(destName);
+ if ((dst_status < 0) || force_flag) {
+ unlink(dst_name);
dstStatBuf.st_ino = -1;
dstStatBuf.st_dev = -1;
}
if ((srcStatBuf.st_dev == dstStatBuf.st_dev) &&
(srcStatBuf.st_ino == dstStatBuf.st_ino)) {
- error_msg("Copying file \"%s\" to itself", srcName);
+ if (!quiet_flag) {
+ error_msg("Copying file \"%s\" to itself", src_name);
+ }
return FALSE;
}
if (S_ISDIR(srcStatBuf.st_mode)) {
//fprintf(stderr, "copying directory %s to %s\n", srcName, destName);
/* Make sure the directory is writable */
- status = mkdir(destName, 0777777 ^ umask(0));
- if (status < 0 && errno != EEXIST) {
- perror_msg("%s", destName);
+ dst_status = create_path(dst_name, 0777777 ^ umask(0));
+ if ((dst_status < 0) && (errno != EEXIST)) {
+ if (!quiet_flag) {
+ perror_msg("%s", dst_name);
+ }
return FALSE;
}
} else if (S_ISLNK(srcStatBuf.st_mode)) {
@@ -92,80 +97,92 @@ copy_file(const char *srcName, const char *destName,
//fprintf(stderr, "copying link %s to %s\n", srcName, destName);
/* Warning: This could possibly truncate silently, to BUFSIZ chars */
- link_size = readlink(srcName, &link_val[0], BUFSIZ);
+ link_size = readlink(src_name, &link_val[0], BUFSIZ);
if (link_size < 0) {
- perror_msg("%s", srcName);
+ if (quiet_flag) {
+ perror_msg("%s", src_name);
+ }
return FALSE;
}
link_val[link_size] = '\0';
- status = symlink(link_val, destName);
- if (status < 0) {
- perror_msg("%s", destName);
+ src_status = symlink(link_val, dst_name);
+ if (src_status < 0) {
+ if (!quiet_flag) {
+ perror_msg("%s", dst_name);
+ }
return FALSE;
}
#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
- if (setModes == TRUE) {
+ if (set_modes == TRUE) {
/* Try to set owner, but fail silently like GNU cp */
- lchown(destName, srcStatBuf.st_uid, srcStatBuf.st_gid);
+ lchown(dst_name, srcStatBuf.st_uid, srcStatBuf.st_gid);
}
#endif
return TRUE;
} else if (S_ISFIFO(srcStatBuf.st_mode)) {
//fprintf(stderr, "copying fifo %s to %s\n", srcName, destName);
- if (mkfifo(destName, 0644) < 0) {
- perror_msg("%s", destName);
+ if (mkfifo(dst_name, 0644) < 0) {
+ if (!quiet_flag) {
+ perror_msg("%s", dst_name);
+ }
return FALSE;
}
} else if (S_ISBLK(srcStatBuf.st_mode) || S_ISCHR(srcStatBuf.st_mode)
|| S_ISSOCK(srcStatBuf.st_mode)) {
//fprintf(stderr, "copying soc, blk, or chr %s to %s\n", srcName, destName);
- if (mknod(destName, srcStatBuf.st_mode, srcStatBuf.st_rdev) < 0) {
- perror_msg("%s", destName);
+ if (mknod(dst_name, srcStatBuf.st_mode, srcStatBuf.st_rdev) < 0) {
+ if (!quiet_flag) {
+ perror_msg("%s", dst_name);
+ }
return FALSE;
}
} else if (S_ISREG(srcStatBuf.st_mode)) {
//fprintf(stderr, "copying regular file %s to %s\n", srcName, destName);
- rfd = open(srcName, O_RDONLY);
- if (rfd < 0) {
- perror_msg("%s", srcName);
+ src_file = fopen(src_name, "r");
+ if (src_file == NULL) {
+ if (!quiet_flag) {
+ perror_msg("%s", src_name);
+ }
return FALSE;
}
- wfd = open(destName, O_WRONLY | O_CREAT | O_TRUNC,
- srcStatBuf.st_mode);
- if (wfd < 0) {
- perror_msg("%s", destName);
- close(rfd);
+ dst_file = fopen(dst_name, "w");
+ if (dst_file == NULL) {
+ if (!quiet_flag) {
+ perror_msg("%s", dst_name);
+ }
+ fclose(src_file);
return FALSE;
}
- if (copy_file_chunk(rfd, wfd, srcStatBuf.st_size)==FALSE)
- goto error_exit;
-
- close(rfd);
- if (close(wfd) < 0) {
+ if (copy_file_chunk(src_file, dst_file, srcStatBuf.st_size)==FALSE) {
+ goto error_exit;
+ }
+
+ fclose(src_file);
+ if (fclose(dst_file) < 0) {
return FALSE;
}
}
- if (setModes == TRUE) {
+ if (set_modes == TRUE) {
/* This is fine, since symlinks never get here */
- if (chown(destName, srcStatBuf.st_uid, srcStatBuf.st_gid) < 0)
- perror_msg_and_die("%s", destName);
- if (chmod(destName, srcStatBuf.st_mode) < 0)
- perror_msg_and_die("%s", destName);
+ if (chown(dst_name, srcStatBuf.st_uid, srcStatBuf.st_gid) < 0)
+ perror_msg("%s", dst_name);
+ if (chmod(dst_name, srcStatBuf.st_mode) < 0)
+ perror_msg("%s", dst_name);
times.actime = srcStatBuf.st_atime;
times.modtime = srcStatBuf.st_mtime;
- if (utime(destName, &times) < 0)
- perror_msg_and_die("%s", destName);
+ if (utime(dst_name, &times) < 0)
+ perror_msg("%s", dst_name);
}
return TRUE;
- error_exit:
- perror_msg("%s", destName);
- close(rfd);
- close(wfd);
+error_exit:
+ perror_msg("%s", dst_name);
+ fclose(src_file);
+ fclose(dst_file);
return FALSE;
}