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Move implementation of closefrom(3) from app.c to strcompat.c

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@233358 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2009-12-06 07:01:06 +00:00
parent 4fd45889df
commit cfd17ef0a6
3 changed files with 38 additions and 19 deletions
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19
main/app.c
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@@ -33,8 +33,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include <regex.h>
#include <sys/file.h> /* added this to allow to compile, sorry! */
#include <signal.h>
#include <sys/time.h> /* for getrlimit(2) */
#include <sys/resource.h> /* for getrlimit(2) */
#include <stdlib.h> /* for closefrom(3) */
#ifdef HAVE_CAP
#include <sys/capability.h>
@@ -2008,24 +2006,7 @@ int ast_str_get_encoded_str(struct ast_str **str, int maxlen, const char *stream
void ast_close_fds_above_n(int n)
{
#ifdef HAVE_CLOSEFROM
closefrom(n + 1);
#else
int x, null;
struct rlimit rl;
getrlimit(RLIMIT_NOFILE, &rl);
null = open("/dev/null", O_RDONLY);
for (x = n + 1; x < rl.rlim_cur; x++) {
if (x != null) {
/* Side effect of dup2 is that it closes any existing fd without error.
* This prevents valgrind and other debugging tools from sending up
* false error reports. */
while (dup2(null, x) < 0 && errno == EINTR);
close(x);
}
}
close(null);
#endif
}
int ast_safe_fork(int stop_reaper)