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autofs-5.1.3 - fix unset tsd group name handling
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From: Ian Kent <raven@themaw.net>
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Commit 1a64a6bbc5 changed set_tsd_user_vars() to the thread specific
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values even if the group name could not be obtained.
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But the structure holding the values was not initialized on allocation
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so the group field might not be NULL when no group name is available.
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Also the macro addition and removal functions didn't properly handle a
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macro value of NULL.
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Signed-off-by: Ian Kent <raven@themaw.net>
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Reported-by: Donald Buczek <buczek@molgen.mpg.de>
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---
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CHANGELOG | 1 +
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lib/macros.c | 8 +++++---
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lib/mounts.c | 1 +
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3 files changed, 7 insertions(+), 3 deletions(-)
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--- autofs-5.0.7.orig/CHANGELOG
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+++ autofs-5.0.7/CHANGELOG
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@@ -250,6 +250,7 @@
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- increase worker thread per-thread stack size.
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- limit getgrgid_r() buffer size.
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- add congigure option for limiting getgrgid_r() stack usage.
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+- fix unset tsd group name handling.
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25/07/2012 autofs-5.0.7
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=======================
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--- autofs-5.0.7.orig/lib/macros.c
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+++ autofs-5.0.7/lib/macros.c
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@@ -281,18 +281,20 @@ macro_addvar(struct substvar *table, con
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}
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if (lv) {
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- char *this = malloc(strlen(value) + 1);
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+ const char *val = value ? value : "";
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+ char *this = malloc(strlen(val) + 1);
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if (!this) {
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lv = table;
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goto done;
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}
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- strcpy(this, value);
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+ strcpy(this, val);
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free(lv->val);
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lv->val = this;
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if (lv != table)
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lv = table;
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} else {
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struct substvar *new;
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+ const char *this = value ? value : "";
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char *def, *val;
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def = strdup(str);
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@@ -302,7 +304,7 @@ macro_addvar(struct substvar *table, con
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}
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def[len] = '\0';
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- val = strdup(value);
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+ val = strdup(this);
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if (!val) {
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lv = table;
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free(def);
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--- autofs-5.0.7.orig/lib/mounts.c
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+++ autofs-5.0.7/lib/mounts.c
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@@ -1456,6 +1456,7 @@ void set_tsd_user_vars(unsigned int logo
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error(logopt, "failed alloc tsv storage");
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return;
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}
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+ memset(tsv, 0, sizeof(struct thread_stdenv_vars));
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tsv->uid = uid;
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tsv->gid = gid;
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