diff options
Diffstat (limited to 'src/util.c')
| -rw-r--r-- | src/util.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/util.c b/src/util.c index 6cbc7ce477..2e5827f32d 100644 --- a/src/util.c +++ b/src/util.c @@ -609,6 +609,9 @@ int get_process_cmdline(pid_t pid, size_t max_length, char **line) { fclose(f); + if (r[0] == 0) + return get_process_name(pid, line); + *line = r; return 0; } @@ -2798,6 +2801,30 @@ char **replace_env_argv(char **argv, char **env) { return r; } +int columns(void) { + static __thread int parsed_columns = 0; + const char *e; + + if (parsed_columns > 0) + return parsed_columns; + + if ((e = getenv("COLUMNS"))) + parsed_columns = atoi(e); + + if (parsed_columns <= 0) { + struct winsize ws; + zero(ws); + + if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) >= 0) + parsed_columns = ws.ws_col; + } + + if (parsed_columns <= 0) + parsed_columns = 80; + + return parsed_columns; +} + static const char *const ioprio_class_table[] = { [IOPRIO_CLASS_NONE] = "none", [IOPRIO_CLASS_RT] = "realtime", |