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-rw-r--r--copy.c19
1 files changed, 7 insertions, 12 deletions
diff --git a/copy.c b/copy.c
index e1cd5d0..7100eed 100644
--- a/copy.c
+++ b/copy.c
@@ -6,32 +6,27 @@ int copy_fd(int ifd, int ofd)
int len;
char buffer[8192];
char *buf = buffer;
- len = read(ifd, buffer, sizeof(buffer));
+ len = xread(ifd, buffer, sizeof(buffer));
if (!len)
break;
if (len < 0) {
int read_error;
- if (errno == EAGAIN)
- continue;
read_error = errno;
close(ifd);
return error("copy-fd: read returned %s",
strerror(read_error));
}
- while (1) {
- int written = write(ofd, buf, len);
+ while (len) {
+ int written = xwrite(ofd, buf, len);
if (written > 0) {
buf += written;
len -= written;
- if (!len)
- break;
}
- if (!written)
+ else if (!written)
return error("copy-fd: write returned 0");
- if (errno == EAGAIN || errno == EINTR)
- continue;
- return error("copy-fd: write returned %s",
- strerror(errno));
+ else
+ return error("copy-fd: write returned %s",
+ strerror(errno));
}
}
close(ifd);