diff options
author | Glenn L McGrath <bug1@ihug.co.nz> | 2001-04-11 20:23:35 +0400 |
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committer | Glenn L McGrath <bug1@ihug.co.nz> | 2001-04-11 20:23:35 +0400 |
commit | 4949faf4b2090ca23c2aeb34535fdbe57754913a (patch) | |
tree | b292a499341d3c0314283e2822a93241a1c4e1dd /libbb/copy_file.c | |
parent | 5b20d02ea98c41bbd8a49cdbb84f425fa9ef446e (diff) |
copy_file_chunk uses streams now.
Diffstat (limited to 'libbb/copy_file.c')
-rw-r--r-- | libbb/copy_file.c | 133 |
1 files changed, 75 insertions, 58 deletions
diff --git a/libbb/copy_file.c b/libbb/copy_file.c index 64b65b9fa..eb9cb1a16 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, ×) < 0) - perror_msg_and_die("%s", destName); + if (utime(dst_name, ×) < 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; } |