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Without dl_iterate_phdr for now...

This commit is contained in:
Willem Toorop 2018-05-03 11:40:44 +02:00
parent f5c588c955
commit de7f007bf3
1 changed files with 12 additions and 0 deletions
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12
src/compat/getentropy_linux.c
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@ -19,8 +19,12 @@
* Emulation of getentropy(2) as documented at:
* http://man.openbsd.org/getentropy.2
*/
/* #define WITH_DL_ITERATE_PHDR 1 */
#ifdef WITH_DL_ITERATE_PHDR
#define _GNU_SOURCE 1
#define _POSIX_C_SOURCE 199309L
#endif
#include "config.h"
#include <sys/types.h>
@ -40,7 +44,9 @@
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#ifdef WITH_DL_ITERATE_PHDR
#include <link.h>
#endif
#include <termios.h>
#include <fcntl.h>
#include <signal.h>
@ -102,7 +108,9 @@ static int getentropy_urandom(void *buf, size_t len);
static int getentropy_sysctl(void *buf, size_t len);
#endif
static int getentropy_fallback(void *buf, size_t len);
#ifdef WITH_DL_ITERATE_PHDR
static int getentropy_phdr(struct dl_phdr_info *info, size_t size, void *data);
#endif
int
getentropy(void *buf, size_t len)
@ -347,6 +355,7 @@ static const int cl[] = {
#endif
};
#ifdef WITH_DL_ITERATE_PHDR
static int
getentropy_phdr(struct dl_phdr_info *info, size_t size, void *data)
{
@ -355,6 +364,7 @@ getentropy_phdr(struct dl_phdr_info *info, size_t size, void *data)
CRYPTO_SHA512_UPDATE(ctx, &info->dlpi_addr, sizeof (info->dlpi_addr));
return (0);
}
#endif
static int
getentropy_fallback(void *buf, size_t len)
@ -392,7 +402,9 @@ getentropy_fallback(void *buf, size_t len)
cnt += (int)tv.tv_usec;
}
#ifdef WITH_DL_ITERATE_PHDR
dl_iterate_phdr(getentropy_phdr, &ctx);
#endif
for (ii = 0; ii < sizeof(cl)/sizeof(cl[0]); ii++)
HX(clock_gettime(cl[ii], &ts) == -1, ts);