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give up privs when reading seed file

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This commit is contained in:
Damien Miller 2000-11-25 10:09:32 +11:00
parent 1492029371
commit d592b63296
2 changed files with 16 additions and 1 deletions
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3
ChangeLog
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@ -1,3 +1,6 @@
20001125
- (djm) Give up privs when reading seed file
20001123
- (bal) Merge OpenBSD changes:
- markus@cvs.openbsd.org 2000/11/15 22:31:36

14
entropy.c
View File

@ -35,7 +35,7 @@
# include <floatingpoint.h>
#endif /* HAVE_FLOATINGPOINT_H */
RCSID("$Id: entropy.c,v 1.21 2000/10/16 09:13:43 djm Exp $");
RCSID("$Id: entropy.c,v 1.22 2000/11/24 23:09:32 djm Exp $");
#ifndef offsetof
# define offsetof(type, member) ((size_t) &((type *)0)->member)
@ -798,7 +798,10 @@ seed_rng(void)
void init_rng(void)
{
int original_euid;
original_uid = getuid();
original_euid = geteuid();
/* Read in collection commands */
if (!prng_read_commands(SSH_PRNG_COMMAND_FILE))
@ -806,7 +809,16 @@ void init_rng(void)
/* Set ourselves up to save a seed upon exit */
prng_seed_saved = 0;
/* Give up privs while reading seed file */
if ((original_uid != original_euid) && (seteuid(original_uid) == -1))
fatal("Couldn't give up privileges");
prng_read_seedfile();
if ((original_uid != original_euid) && (seteuid(original_euid) == -1))
fatal("Couldn't restore privileges");
fatal_add_cleanup(prng_seed_cleanup, NULL);
atexit(prng_write_seedfile);