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proc-cmdline: parse the whole /proc/cmdline

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The kernel command line may contain newlines which kernel happily
accepts, but we'd ignore everything past the first newline. Let's fix
that by replacing read_one_line_file() with read_full_file().
This commit is contained in:
Frantisek Sumsal
2023-06-13 09:54:02 +02:00
committed by Lennart Poettering
parent 0f85a0d38f
commit d5a937a62a
3 changed files with 11 additions and 2 deletions
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src/basic/proc-cmdline.c
+2 -2
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@@ -98,7 +98,7 @@ int proc_cmdline(char **ret) {
if (detect_container() > 0)
return get_process_cmdline(1, SIZE_MAX, 0, ret);
else
return read_one_line_file("/proc/cmdline", ret);
return read_full_file("/proc/cmdline", ret, NULL);
}
static int proc_cmdline_strv_internal(char ***ret, bool filter_pid1_args) {
@@ -128,7 +128,7 @@ static int proc_cmdline_strv_internal(char ***ret, bool filter_pid1_args) {
} else {
_cleanup_free_ char *s = NULL;
r = read_one_line_file("/proc/cmdline", &s);
r = read_full_file("/proc/cmdline", &s, NULL);
if (r < 0)
return r;