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pkg-utils/lib/util/write_retry.c
David Oberhollenzer 20aea96396 Add license
Signed-off-by: David Oberhollenzer <goliath@infraroot.at>
2019-03-08 18:18:31 +01:00

27 lines
411 B
C

/* SPDX-License-Identifier: ISC */
#include <unistd.h>
#include <errno.h>
#include "util/util.h"
ssize_t write_retry(int fd, void *data, size_t size)
{
ssize_t ret, total = 0;
while (size > 0) {
ret = write(fd, data, size);
if (ret == 0)
break;
if (ret < 0) {
if (errno == EINTR)
continue;
return -1;
}
data = (char *)data + ret;
size -= ret;
total += ret;
}
return total;
}