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-rw-r--r--meta/recipes-devtools/pseudo/files/0001-pseudo_has_unload-add-function.patch190
1 files changed, 190 insertions, 0 deletions
diff --git a/meta/recipes-devtools/pseudo/files/0001-pseudo_has_unload-add-function.patch b/meta/recipes-devtools/pseudo/files/0001-pseudo_has_unload-add-function.patch
new file mode 100644
index 0000000000..b5c81c9d3e
--- /dev/null
+++ b/meta/recipes-devtools/pseudo/files/0001-pseudo_has_unload-add-function.patch
@@ -0,0 +1,190 @@
1From be97cb958f2934fa398fc8e344b25b84ebd4e90c Mon Sep 17 00:00:00 2001
2From: "Peter A. Bigot" <pab@pabigot.com>
3Date: Sun, 25 Aug 2013 19:22:09 -0500
4Subject: [PATCH] pseudo_has_unload: add function
5
6Various wrappers checked for a non-null pseudo_get_value("PSEUDO_UNLOAD") to
7determine whether the environment should include the pseudo variables. None
8of those checks freed the returned value when it was not null. The new
9check function does.
10
11The new check function also sees whether PSEUDO_UNLOAD was defined in the
12environment that should be used in the wrapped system call. This allows
13pkg_postinst scripts to strip out the LD_PRELOAD setting, for example before
14invoking qemu to execute commands in an environment that does not have
15libpseudo.so.
16
17[YOCTO #4843]
18
19Upstream-Status: Pending
20Signed-off-by: Peter A. Bigot <pab@pabigot.com>
21---
22 ports/common/guts/execv.c | 2 +-
23 ports/common/guts/execve.c | 2 +-
24 ports/common/guts/execvp.c | 2 +-
25 ports/common/guts/fork.c | 2 +-
26 ports/linux/newclone/pseudo_wrappers.c | 2 +-
27 ports/linux/oldclone/pseudo_wrappers.c | 2 +-
28 ports/unix/guts/popen.c | 2 +-
29 ports/unix/guts/system.c | 2 +-
30 pseudo.h | 1 +
31 pseudo_util.c | 27 +++++++++++++++++++++++++++
32 10 files changed, 36 insertions(+), 8 deletions(-)
33
34diff --git a/ports/common/guts/execv.c b/ports/common/guts/execv.c
35index 763e1f9..3e1f820 100644
36--- a/ports/common/guts/execv.c
37+++ b/ports/common/guts/execv.c
38@@ -19,7 +19,7 @@
39 }
40
41 pseudo_setupenv();
42- if (pseudo_get_value("PSEUDO_UNLOAD"))
43+ if (pseudo_has_unload(NULL))
44 pseudo_dropenv();
45
46 /* if exec() fails, we may end up taking signals unexpectedly...
47diff --git a/ports/common/guts/execve.c b/ports/common/guts/execve.c
48index a003657..ff6a44e 100644
49--- a/ports/common/guts/execve.c
50+++ b/ports/common/guts/execve.c
51@@ -20,7 +20,7 @@
52 }
53
54 new_environ = pseudo_setupenvp(envp);
55- if (pseudo_get_value("PSEUDO_UNLOAD"))
56+ if (pseudo_has_unload(new_environ))
57 new_environ = pseudo_dropenvp(new_environ);
58
59 /* if exec() fails, we may end up taking signals unexpectedly...
60diff --git a/ports/common/guts/execvp.c b/ports/common/guts/execvp.c
61index 5e75be7..04253c3 100644
62--- a/ports/common/guts/execvp.c
63+++ b/ports/common/guts/execvp.c
64@@ -20,7 +20,7 @@
65 }
66
67 pseudo_setupenv();
68- if (pseudo_get_value("PSEUDO_UNLOAD"))
69+ if (pseudo_has_unload(NULL))
70 pseudo_dropenv();
71
72 /* if exec() fails, we may end up taking signals unexpectedly...
73diff --git a/ports/common/guts/fork.c b/ports/common/guts/fork.c
74index df8abd7..bebe3b0 100644
75--- a/ports/common/guts/fork.c
76+++ b/ports/common/guts/fork.c
77@@ -12,7 +12,7 @@
78 */
79 if (rc == 0) {
80 pseudo_setupenv();
81- if (!pseudo_get_value("PSEUDO_UNLOAD")) {
82+ if (!pseudo_has_unload(NULL)) {
83 pseudo_reinit_libpseudo();
84 } else {
85 pseudo_dropenv();
86diff --git a/ports/linux/newclone/pseudo_wrappers.c b/ports/linux/newclone/pseudo_wrappers.c
87index 9dbac42..257e8bb 100644
88--- a/ports/linux/newclone/pseudo_wrappers.c
89+++ b/ports/linux/newclone/pseudo_wrappers.c
90@@ -28,7 +28,7 @@ int wrap_clone_child(void *args) {
91
92 if (!(flags & CLONE_VM)) {
93 pseudo_setupenv();
94- if (!pseudo_get_value("PSEUDO_UNLOAD")) {
95+ if (!pseudo_has_unload(NULL)) {
96 pseudo_reinit_libpseudo();
97 } else {
98 pseudo_dropenv();
99diff --git a/ports/linux/oldclone/pseudo_wrappers.c b/ports/linux/oldclone/pseudo_wrappers.c
100index c0ce5dd..598d966 100644
101--- a/ports/linux/oldclone/pseudo_wrappers.c
102+++ b/ports/linux/oldclone/pseudo_wrappers.c
103@@ -22,7 +22,7 @@ int wrap_clone_child(void *args) {
104
105 if (!(flags & CLONE_VM)) {
106 pseudo_setupenv();
107- if (!pseudo_get_value("PSEUDO_UNLOAD")) {
108+ if (!pseudo_has_unload(NULL)) {
109 pseudo_reinit_libpseudo();
110 } else {
111 pseudo_dropenv();
112diff --git a/ports/unix/guts/popen.c b/ports/unix/guts/popen.c
113index 0ca16b0..5d44c0e 100644
114--- a/ports/unix/guts/popen.c
115+++ b/ports/unix/guts/popen.c
116@@ -9,7 +9,7 @@
117 * in ways that avoid our usual enforcement of the environment.
118 */
119 pseudo_setupenv();
120- if (pseudo_get_value("PSEUDO_UNLOAD"))
121+ if (pseudo_has_unload(NULL))
122 pseudo_dropenv();
123
124 rc = real_popen(command, mode);
125diff --git a/ports/unix/guts/system.c b/ports/unix/guts/system.c
126index 028b372..6351592 100644
127--- a/ports/unix/guts/system.c
128+++ b/ports/unix/guts/system.c
129@@ -9,7 +9,7 @@
130 return 1;
131
132 pseudo_setupenv();
133- if (pseudo_get_value("PSEUDO_UNLOAD"))
134+ if (pseudo_has_unload(NULL))
135 pseudo_dropenv();
136
137 rc = real_system(command);
138diff --git a/pseudo.h b/pseudo.h
139index 56760a4..f600793 100644
140--- a/pseudo.h
141+++ b/pseudo.h
142@@ -28,6 +28,7 @@ extern void pseudo_init_client(void);
143 void pseudo_dump_env(char **envp);
144 int pseudo_set_value(const char *key, const char *value);
145 char *pseudo_get_value(const char *key);
146+int pseudo_has_unload(char * const *envp);
147
148 #include "pseudo_tables.h"
149
150diff --git a/pseudo_util.c b/pseudo_util.c
151index 8d0969e..16c70e0 100644
152--- a/pseudo_util.c
153+++ b/pseudo_util.c
154@@ -95,6 +95,33 @@ dump_env(char **envp) {
155 }
156 #endif
157
158+int
159+pseudo_has_unload(char * const *envp) {
160+ static const char unload[] = "PSEUDO_UNLOAD";
161+ static size_t unload_len = strlen(unload);
162+ size_t i = 0;
163+
164+ /* Is it in the caller environment? */
165+ if (NULL != getenv(unload))
166+ return 1;
167+
168+ /* Is it in the environment cache? */
169+ if (pseudo_util_initted == -1)
170+ pseudo_init_util();
171+ while (pseudo_env[i].key && strcmp(pseudo_env[i].key, unload))
172+ ++i;
173+ if (pseudo_env[i].key && pseudo_env[i].value)
174+ return 1;
175+
176+ /* Is it in the operational environment? */
177+ while (envp && *envp) {
178+ if ((!strncmp(*envp, unload, unload_len)) && ('=' == (*envp)[unload_len]))
179+ return 1;
180+ ++envp;
181+ }
182+ return 0;
183+}
184+
185 /* Caller must free memory! */
186 char *
187 pseudo_get_value(const char *key) {
188--
1891.7.9.5
190
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