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transfused: improve write_exactly error handling

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Signed-off-by: David Sheets <dsheets@docker.com>
This commit is contained in:
David Sheets 2016-12-14 14:38:07 +00:00
parent 6b1ef63d79
commit 78328cf026
1 changed files with 4 additions and 2 deletions
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6
alpine/packages/transfused/transfused.c
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@ -303,10 +303,12 @@ void write_exactly(char *descr, int fd, void *p, size_t nbyte)
char *buf = p; char *buf = p;
do { do {
/* TODO: socket write conditions e.g.EAGAIN */
write_count = write(fd, buf, nbyte); write_count = write(fd, buf, nbyte);
if (write_count < 0) if (write_count < 0) {
if (errno == EINTR || errno == EAGAIN)
continue;
die(1, NULL, "", "%s: error writing: ", descr); die(1, NULL, "", "%s: error writing: ", descr);
}
if (write_count == 0) if (write_count == 0)
die(1, NULL, "", "%s: 0 write: ", descr); die(1, NULL, "", "%s: 0 write: ", descr);