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authorDenys Vlasenko <vda.linux@googlemail.com>2016-10-27 11:28:59 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2016-10-27 11:28:59 +0200
commit2eb0a7e1b9a579ba34e4780c9ed8e74f38bc6b85 (patch)
treed02a7697eafd348e66aa1ef17fc5334d7b8f950e
parent70392331a98d266af539be4b910812fc7b0a72d4 (diff)
downloadbusybox-2eb0a7e1b9a579ba34e4780c9ed8e74f38bc6b85.tar.gz
ash: [SHELL] Expand ENV before using it
Upstream commit: Date: Sun, 13 Jul 2008 21:51:52 +0800 [SHELL] Expand ENV before using it Per POSIX ENV needs to undergo parameter expansion. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--shell/ash.c17
-rw-r--r--shell/hush.c1
2 files changed, 8 insertions, 10 deletions
diff --git a/shell/ash.c b/shell/ash.c
index 864b8f0a4..0dd440c61 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -13277,11 +13277,12 @@ procargs(char **argv)
}
/*
- * Read /etc/profile or .profile.
+ * Read /etc/profile, ~/.profile, $ENV.
*/
static void
read_profile(const char *name)
{
+ name = expandstr(name);
if (setinputfile(name, INPUT_PUSH_FILE | INPUT_NOFILE_OK) < 0)
return;
cmdloop(0);
@@ -13325,7 +13326,6 @@ extern int etext();
int ash_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int ash_main(int argc UNUSED_PARAM, char **argv)
{
- const char *shinit;
volatile smallint state;
struct jmploc jmploc;
struct stackmark smark;
@@ -13394,11 +13394,8 @@ int ash_main(int argc UNUSED_PARAM, char **argv)
state1:
state = 2;
hp = lookupvar("HOME");
- if (hp) {
- hp = concat_path_file(hp, ".profile");
- read_profile(hp);
- free((char*)hp);
- }
+ if (hp)
+ read_profile("$HOME/.profile");
}
state2:
state = 3;
@@ -13408,11 +13405,11 @@ int ash_main(int argc UNUSED_PARAM, char **argv)
#endif
iflag
) {
- shinit = lookupvar("ENV");
- if (shinit != NULL && *shinit != '\0') {
+ const char *shinit = lookupvar("ENV");
+ if (shinit != NULL && *shinit != '\0')
read_profile(shinit);
- }
}
+ popstackmark(&smark);
state3:
state = 4;
if (minusc) {
diff --git a/shell/hush.c b/shell/hush.c
index d7a0d761e..c80429d5c 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -8405,6 +8405,7 @@ int hush_main(int argc, char **argv)
* "bash <script>" (which is never interactive (unless -i?))
* sources $BASH_ENV here (without scanning $PATH).
* If called as sh, does the same but with $ENV.
+ * Also NB, per POSIX, $ENV should undergo parameter expansion.
*/
G.global_argc--;
G.global_argv++;