If max_length is equal or greater than cmdline length all trailing non-printable
characters are dropped. If max_length is 0 it should do the same.
This should also fix cmdline truncation if the last character is not '\0'.
Fixes #3469.
int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line) {
_cleanup_fclose_ FILE *f = NULL;
+ bool space = false;
char *r = NULL, *k;
const char *p;
int c;
return -ENOMEM;
}
- r[len++] = isprint(c) ? c : ' ';
- }
+ if (isprint(c)) {
+ if (space) {
+ r[len++] = ' ';
+ space = false;
+ }
+
+ r[len++] = c;
+ } else
+ space = true;
+ }
if (len > 0)
- r[len-1] = 0;
+ r[len] = 0;
} else {
- bool space = false;
size_t left;
r = new(char, max_length);