From 798e258d301ac237cb1d72b5fc4b19ee900d6f7d Mon Sep 17 00:00:00 2001 From: Michal Schmidt Date: Thu, 29 Sep 2011 21:18:17 +0200 Subject: [PATCH] systemctl: fix corrupted output of units On some systems the list of units in systemctl output came out wrong, all on one line and with missing descriptions. It turns out printf() really attempts to mmap 2G memory when INT_MAX is passed as the field width. On machines with small virtual memory without overcommit the mmap inside printf() failed. Do not use INT_MAX for unlimited width. --- src/systemctl.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) diff --git a/src/systemctl.c b/src/systemctl.c index 9b54da1..0de2444 100644 --- a/src/systemctl.c +++ b/src/systemctl.c @@ -358,13 +358,14 @@ static void output_units_list(const struct unit_info *unit_infos, unsigned c) { } else id_len = max_id_len; - if (arg_full || !arg_no_pager) - desc_len = INT_MAX; - - if (!arg_no_legend) - printf("%-*s %-6s %-*s %-*s %-*s %.*s\n", id_len, "UNIT", "LOAD", - active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB", - desc_len, "DESCRIPTION"); + if (!arg_no_legend) { + printf("%-*s %-6s %-*s %-*s %-*s ", id_len, "UNIT", "LOAD", + active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB"); + if (!arg_full && arg_no_pager) + printf("%.*s\n", desc_len, "DESCRIPTION"); + else + printf("%s\n", "DESCRIPTION"); + } for (u = unit_infos; u < unit_infos + c; u++) { char *e; @@ -391,13 +392,16 @@ static void output_units_list(const struct unit_info *unit_infos, unsigned c) { e = arg_full ? NULL : ellipsize(u->id, id_len, 33); - printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s %.*s\n", + printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s ", id_len, e ? e : u->id, on_loaded, u->load_state, off_loaded, on_active, active_len, u->active_state, sub_len, u->sub_state, off_active, - job_len, u->job_id ? u->job_type : "", - desc_len, u->description); + job_len, u->job_id ? u->job_type : ""); + if (!arg_full && arg_no_pager) + printf("%.*s\n", desc_len, u->description); + else + printf("%s\n", u->description); free(e); } -- 2.7.4