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tmpfiles: if we are supposed to write a string to a file, it's OK if we can't write the trailing newline

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This commit is contained in:
Lennart Poettering 2012-05-15 14:34:33 +02:00
parent 04fb63514d
commit 03ad1136ba
2 changed files with 9 additions and 3 deletions
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3
src/shared/util.c
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@ -597,7 +597,8 @@ int write_one_line_file(const char *fn, const char *line) {
assert(fn);
assert(line);
if (!(f = fopen(fn, "we")))
f = fopen(fn, "we");
if (!f)
return -errno;
errno = 0;

9
src/tmpfiles/tmpfiles.c
View File

@ -617,8 +617,13 @@ static int create_item(Item *i) {
iovec[1].iov_len = 1;
n = writev(fd, iovec, 2);
if (n < 0 || (size_t) n != l+1) {
log_error("Failed to write file %s: %s", i->path, n < 0 ? strerror(-n) : "Short");
/* It's OK if we don't write the trailing
* newline, hence we check for l, instead of
* l+1 here. Files in /sys often refuse
* writing of the trailing newline. */
if (n < 0 || (size_t) n < l) {
log_error("Failed to write file %s: %s", i->path, n < 0 ? strerror(-n) : "Short write");
close_nointr_nofail(fd);
return n < 0 ? n : -EIO;
}