diff options
Diffstat (limited to 'src/basic/terminal-util.c')
| -rw-r--r-- | src/basic/terminal-util.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/src/basic/terminal-util.c b/src/basic/terminal-util.c index a39764472b..0a9d2bbdef 100644 --- a/src/basic/terminal-util.c +++ b/src/basic/terminal-util.c @@ -128,7 +128,7 @@ int read_one_char(FILE *f, char *ret, usec_t t, bool *need_nl) { errno = 0; if (!fgets(line, sizeof(line), f)) - return errno ? -errno : -EIO; + return errno > 0 ? -errno : -EIO; truncate_nl(line); @@ -212,7 +212,7 @@ int ask_string(char **ret, const char *text, ...) { errno = 0; if (!fgets(line, sizeof(line), stdin)) - return errno ? -errno : -EIO; + return errno > 0 ? -errno : -EIO; if (!endswith(line, "\n")) putchar('\n'); @@ -726,9 +726,7 @@ bool tty_is_vc_resolve(const char *tty) { } const char *default_term_for_tty(const char *tty) { - assert(tty); - - return tty_is_vc_resolve(tty) ? "TERM=linux" : "TERM=vt220"; + return tty && tty_is_vc_resolve(tty) ? "TERM=linux" : "TERM=vt220"; } int fd_columns(int fd) { @@ -1135,3 +1133,16 @@ int open_terminal_in_namespace(pid_t pid, const char *name, int mode) { return receive_one_fd(pair[0], 0); } + +bool colors_enabled(void) { + const char *colors; + + colors = getenv("SYSTEMD_COLORS"); + if (!colors) { + if (streq_ptr(getenv("TERM"), "dumb")) + return false; + return on_tty(); + } + + return parse_boolean(colors) != 0; +} |