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51d9ac61c7
uClibc doesn't implement strerror_l() and thus libnl starting from 3.2.29 couldn't be compiled with it any longer, see6c2d111177To work-around that problem we'll just do a check on strerror_l() availability during configuration and if it's not there just fall back to locale-less strerror(). Patch for libnl is alreadfy merged upstream, seee15966ac7fand once the next libnl release happens this one must be removed from Lede/OpenWrt. Signed-off-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com> Cc: Felix Fietkau <nbd@nbd.name> Cc: John Crispin <john@phrozen.org> Cc: Daniel Engberg <daniel.engberg.lists@pyret.net>
106 lines
2.7 KiB
Diff
106 lines
2.7 KiB
Diff
From 098a4cc35b0da4438b8b67a914edecebef5bb6a9 Mon Sep 17 00:00:00 2001
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From: Alexey Brodkin <abrodkin@synopsys.com>
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Date: Fri, 10 Mar 2017 13:22:14 +0300
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Subject: [PATCH] lib: Escape usage of strerror_l() if it doesn't exist in libc
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uClibc doesn't implement strerror_l() and thus libnl starting from
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3.2.29 couldn't be compiled with it any longer.
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To work-around that problem we'll just do a check on strerror_l()
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availability during configuration and if it's not there just fall back
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to locale-less strerror().
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Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
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Cc: Andre Draszik <adraszik@tycoint.com>
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Cc: Thomas Haller <thaller@redhat.com>
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---
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This patch is now accepted upstream and will be a part of the next libnl
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release, see
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https://github.com/thom311/libnl/commit/e15966ac7f3b43df2acf869f98089762807d0568
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configure.ac | 2 ++
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lib/utils.c | 8 +++++++-
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src/lib/utils.c | 6 ++++++
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3 files changed, 15 insertions(+), 1 deletion(-)
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diff --git a/configure.ac b/configure.ac
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index 68b285e5b15c..2739b997ee3a 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -121,6 +121,8 @@ fi
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AC_CONFIG_SUBDIRS([doc])
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+AC_CHECK_FUNCS([strerror_l])
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+
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AC_CONFIG_FILES([
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Makefile
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libnl-3.0.pc
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diff --git a/lib/utils.c b/lib/utils.c
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index fb350d13fd2f..06273c5b291e 100644
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--- a/lib/utils.c
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+++ b/lib/utils.c
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@@ -30,7 +30,9 @@
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#include <netlink/utils.h>
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#include <linux/socket.h>
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#include <stdlib.h> /* exit() */
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+#ifdef HAVE_STRERROR_L
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#include <locale.h>
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+#endif
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/**
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* Global variable indicating the desired level of debugging output.
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@@ -123,9 +125,10 @@ int __nl_read_num_str_file(const char *path, int (*cb)(long, const char *))
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const char *nl_strerror_l(int err)
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{
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+ const char *buf;
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+#ifdef HAVE_STRERROR_L
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int errno_save = errno;
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locale_t loc = newlocale(LC_MESSAGES_MASK, "", (locale_t)0);
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- const char *buf;
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if (loc == (locale_t)0) {
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if (errno == ENOENT)
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@@ -140,6 +143,9 @@ const char *nl_strerror_l(int err)
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}
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errno = errno_save;
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+#else
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+ buf = strerror(err);
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+#endif
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return buf;
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}
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/** @endcond */
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diff --git a/src/lib/utils.c b/src/lib/utils.c
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index 5878f279c364..feb1d4ef4056 100644
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--- a/src/lib/utils.c
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+++ b/src/lib/utils.c
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@@ -81,6 +81,7 @@ void nl_cli_fatal(int err, const char *fmt, ...)
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fprintf(stderr, "\n");
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} else {
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char *buf;
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+#ifdef HAVE_STRERROR_L
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locale_t loc = newlocale(LC_MESSAGES_MASK, "", (locale_t)0);
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if (loc == (locale_t)0) {
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if (errno == ENOENT)
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@@ -91,9 +92,14 @@ void nl_cli_fatal(int err, const char *fmt, ...)
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}
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if (loc != (locale_t)0)
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buf = strerror_l(err, loc);
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+#else
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+ buf = strerror(err);
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+#endif
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fprintf(stderr, "%s\n", buf);
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+#ifdef HAVE_STRERROR_L
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if (loc != (locale_t)0)
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freelocale(loc);
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+#endif
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}
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exit(abs(err));
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--
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2.7.4
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