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Code Issues Releases Wiki Activity

Add wrapper functions for dlopen() et al so that we can support

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statically compiling in the sudoers plugin but still allow other
plugins to be loaded.  The new --enable-static-sudoers configure
option will cause the sudoers plugin to be compiled statically into
the sudo binary.  This does not prevent other plugins from being
loaded as per sudo.conf.
This commit is contained in:
Todd C. Miller
2013-11-22 16:35:15 -07:00
parent 0fb17059a6
commit 12f3bdf60e
26 changed files with 579 additions and 369 deletions
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16
plugins/system_group/system_group.c
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@@ -45,11 +45,6 @@
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
#ifdef HAVE_DLOPEN
# include <dlfcn.h>
#else
# include "compat/dlfcn.h"
#endif
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
@@ -59,10 +54,7 @@
#include "sudo_plugin.h"
#include "missing.h"
#ifndef RTLD_DEFAULT
# define RTLD_DEFAULT NULL
#endif
#include "sudo_dso.h"
/*
* Sudoers group plugin that does group name-based lookups using the system
@@ -97,7 +89,7 @@ sysgroup_init(int version, sudo_printf_t sudo_printf, char *const argv[])
}
/* Share group cache with sudo if possible. */
handle = dlsym(RTLD_DEFAULT, "sudo_getgrnam");
handle = sudo_dso_findsym(SUDO_DSO_DEFAULT, "sudo_getgrnam");
if (handle != NULL) {
sysgroup_getgrnam = (sysgroup_getgrnam_t)handle;
} else {
@@ -105,7 +97,7 @@ sysgroup_init(int version, sudo_printf_t sudo_printf, char *const argv[])
need_setent = true;
}
handle = dlsym(RTLD_DEFAULT, "sudo_getgrgid");
handle = sudo_dso_findsym(SUDO_DSO_DEFAULT, "sudo_getgrgid");
if (handle != NULL) {
sysgroup_getgrgid = (sysgroup_getgrgid_t)handle;
} else {
@@ -113,7 +105,7 @@ sysgroup_init(int version, sudo_printf_t sudo_printf, char *const argv[])
need_setent = true;
}
handle = dlsym(RTLD_DEFAULT, "sudo_gr_delref");
handle = sudo_dso_findsym(SUDO_DSO_DEFAULT, "sudo_gr_delref");
if (handle != NULL)
sysgroup_gr_delref = (sysgroup_gr_delref_t)handle;