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SUSE:SLE-12-SP2:GA
systemd-mini.414
0002-sysctl-replaces-some-slashes-with-dots.patch
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File 0002-sysctl-replaces-some-slashes-with-dots.patch of Package systemd-mini.414
From 2e573fcf8754fdfe0db0a783b1631ec1679b063a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl> Date: Wed, 16 Apr 2014 21:33:46 -0400 Subject: [PATCH] sysctl: replaces some slashes with dots It turns out that plain sysctl understands a.b/c syntax to write to /proc/sys/a/b.c. Support this for compatibility. https://bugs.freedesktop.org/show_bug.cgi?id=77466 --- man/sysctl.d.xml | 29 +++++++++++++++++++++-------- src/sysctl/sysctl.c | 18 ++++++++++++++++-- 2 files changed, 37 insertions(+), 10 deletions(-) diff --git man/sysctl.d.xml man/sysctl.d.xml index 00a857b..db53b49 100644 --- man/sysctl.d.xml +++ man/sysctl.d.xml @@ -68,13 +68,26 @@ <para>The configuration files contain a list of variable assignments, separated by newlines. Empty lines and lines whose first non-whitespace character - is # or ; are ignored.</para> - - <para>Note that both / and . are accepted as label - separators within sysctl variable - names. <literal>kernel.domainname=foo</literal> and - <literal>kernel/domainname=foo</literal> hence are - entirely equivalent.</para> + is <literal>#</literal> or <literal>;</literal> are + ignored.</para> + + <para>Note that either <literal>/</literal> or + <literal>.</literal> may be used as separators within + sysctl variable names. If the first separator is a + slash, remaining slashes and dots are left intact. If + the first separator is a dot, dots and slashes are + interchanged. <literal>kernel.domainname=foo</literal> + and <literal>kernel/domainname=foo</literal> are + equivalent and will cause <literal>foo</literal> to + be written to + <filename>/proc/sys/kernel/domainname</filename>. + Either + <literal>net.ipv4.conf.enp3s0/200.forwarding</literal> + or + <literal>net/ipv4/conf/enp3s0.200/forwarding</literal> + may be used to refer to + <filename>/proc/sys/net/ipv4/conf/enp3s0.200/forwarding</filename>. + </para> <para>Each configuration file shall be named in the style of <filename><replaceable>program</replaceable>.conf</filename>. @@ -109,7 +122,7 @@ early on boot. The network interface-specific options will also be applied individually for each network interface as it shows up in the system. (More - specifically, that is + specifically, <filename>net.ipv4.conf.*</filename>, <filename>net.ipv6.conf.*</filename>, <filename>net.ipv4.neigh.*</filename> and <filename>net.ipv6.neigh.*</filename>)</para> diff --git src/sysctl/sysctl.c src/sysctl/sysctl.c index 283eefe..06defa5 100644 --- src/sysctl/sysctl.c +++ src/sysctl/sysctl.c @@ -48,12 +48,26 @@ static const char conf_file_dirs[] = #endif ; -static char *normalize_sysctl(char *s) { +static char* normalize_sysctl(char *s) { char *n; - for (n = s; *n; n++) + n = strpbrk(s, "/."); + /* If the first separator is a slash, the path is + * assumed to be normalized and slashes remain slashes + * and dots remains dots. */ + if (!n || *n == '/') + return s; + + /* Otherwise, dots become slashes and slashes become + * dots. Fun. */ + while (n) { if (*n == '.') *n = '/'; + else + *n = '.'; + + n = strpbrk(n + 1, "/."); + } return s; } -- 1.7.9.2
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