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Differential D51100 Diff 157809 bin/cp/utils.c

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bin/cp/utils.c

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int int
copy_file(const FTSENT *entp, bool dne, bool beneath) copy_file(const FTSENT *entp, bool dne, bool beneath)
{ {
struct stat sb, *fs; struct stat sb, *fs;
ssize_t wcount; ssize_t wcount;
off_t wtotal; off_t wtotal;
int ch, checkch, from_fd, rval, to_fd; int ch, checkch, from_fd, rval, to_fd;
int use_copy_file_range = 1; bool use_copy_file_range = true;
fs = entp->fts_statp; fs = entp->fts_statp;
from_fd = to_fd = -1; from_fd = to_fd = -1;
if (!lflag && !sflag) { if (!lflag && !sflag) {
if ((from_fd = open(entp->fts_path, O_RDONLY, 0)) < 0 || if ((from_fd = open(entp->fts_path, O_RDONLY, 0)) < 0 ||
fstat(from_fd, &sb) != 0) { fstat(from_fd, &sb) != 0) {
warn("%s", entp->fts_path); warn("%s", entp->fts_path);
if (from_fd >= 0) if (from_fd >= 0)
▲ Show 20 Lines • Show All 88 Lines • ▼ Show 20 Linescopy_file(const FTSENT *entp, bool dne, bool beneath)
wtotal = 0; wtotal = 0;
do { do {
if (use_copy_file_range) { if (use_copy_file_range) {
wcount = copy_file_range(from_fd, NULL, wcount = copy_file_range(from_fd, NULL,
to_fd, NULL, SSIZE_MAX, 0); to_fd, NULL, SSIZE_MAX, 0);
if (wcount < 0 && errno == EINVAL) { if (wcount < 0 && errno == EINVAL) {
/* probably a non-seekable descriptor */ /* probably a non-seekable descriptor */
use_copy_file_range = 0; use_copy_file_range = false;
} }
} }
if (!use_copy_file_range) { if (!use_copy_file_range) {
wcount = copy_fallback(from_fd, to_fd); wcount = copy_fallback(from_fd, to_fd);
} }
wtotal += wcount; wtotal += wcount;
if (info) { if (info) {
info = 0; info = 0;
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