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authorLennart Poettering <lennart@poettering.net>2015-08-28 18:17:14 +0200
committerLennart Poettering <lennart@poettering.net>2015-08-31 13:20:43 +0200
commita1b4e6e93396c1c449aac4a2a1847033b8ce59f4 (patch)
tree77c270340754f78fd3017eb7d2fe06ee4b5aff27 /src
parentd79200e26ee39d4b451f95e876fc4595df51fe51 (diff)
pager: set $LESSCHARSET when we output UTF8 chars
This way we can be sure that less has the same idea of the terminal as we do. This solves issues in systems that have locale uninitalized, where systemd would output UTF-8 but less wouldn't allow it and show them as control characters.
Diffstat (limited to 'src')
-rw-r--r--src/shared/pager.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/src/shared/pager.c b/src/shared/pager.c
index 85f8fa5b39..3992f9c837 100644
--- a/src/shared/pager.c
+++ b/src/shared/pager.c
@@ -82,7 +82,7 @@ int pager_open(bool jump_to_end) {
/* In the child start the pager */
if (pager_pid == 0) {
- const char* less_opts;
+ const char* less_opts, *less_charset;
(void) reset_all_signal_handlers();
(void) reset_signal_mask();
@@ -90,6 +90,7 @@ int pager_open(bool jump_to_end) {
dup2(fd[0], STDIN_FILENO);
safe_close_pair(fd);
+ /* Initialize a good set of less options */
less_opts = getenv("SYSTEMD_LESS");
if (!less_opts)
less_opts = "FRSXMK";
@@ -97,6 +98,15 @@ int pager_open(bool jump_to_end) {
less_opts = strjoina(less_opts, " +G");
setenv("LESS", less_opts, 1);
+ /* Initialize a good charset for less. This is
+ * particularly important if we output UTF-8
+ * characters. */
+ less_charset = getenv("SYSTEMD_LESSCHARSET");
+ if (!less_charset && is_locale_utf8())
+ less_charset = "utf-8";
+ if (less_charset)
+ setenv("LESSCHARSET", less_charset, 1);
+
/* Make sure the pager goes away when the parent dies */
if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
_exit(EXIT_FAILURE);