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mirror of https://github.com/systemd/systemd-stable.git synced 2025-01-08 21:17:47 +03:00

fileio: extend comment about file sizes in virtual file systems

This commit is contained in:
Lennart Poettering 2021-02-19 18:29:13 +01:00
parent 27a54998f4
commit 1cf36084a7

View File

@ -385,7 +385,9 @@ int read_full_virtual_file(const char *filename, char **ret_contents, size_t *re
if (fd < 0)
return -errno;
/* Start size for files in /proc which usually report a file size of 0. */
/* Start size for files in /proc/ which usually report a file size of 0. (Files in /sys/ report a
* file size of 4K, which is probably OK for sizing our initial buffer, and sysfs attributes can't be
* larger anyway.) */
size = LINE_MAX / 2;
/* Limit the number of attempts to read the number of bytes returned by fstat(). */