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fileio: read_virtual_file(): exit once the max_size limit is reached

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Alternative to: #19682
This commit is contained in:
Lennart Poettering 2021-05-21 16:31:52 +02:00
parent 1b5e91a8d2
commit 136f12a26a
1 changed files with 7 additions and 0 deletions
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7
src/basic/fileio.c
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@ -450,6 +450,13 @@ int read_virtual_file(const char *filename, size_t max_size, char **ret_contents
if (n <= size)
break;
/* If a maximum size is specified and we already read as much, no need to try again */
if (max_size != SIZE_MAX && n >= max_size) {
n = max_size;
truncated = true;
break;
}
/* Hmm... either we read too few bytes from /proc or less likely the content
* of the file might have been changed (and is now bigger) while we were
* processing, let's try again either with a bigger guessed size or the new