33 lines
937 B
Diff
33 lines
937 B
Diff
From e36f80cba6d5eefcc1ee664f16c2c72054b83134 Mon Sep 17 00:00:00 2001
|
|
From: "Joseph C. Sible" <josephcsible@gmail.com>
|
|
Date: Sun, 2 Sep 2018 13:42:26 -0400
|
|
Subject: implement fexecve in terms of execveat when it exists
|
|
|
|
This lets fexecve work even when /proc isn't mounted.
|
|
---
|
|
src/process/fexecve.c | 5 +++++
|
|
1 file changed, 5 insertions(+)
|
|
|
|
diff --git a/src/process/fexecve.c b/src/process/fexecve.c
|
|
index 6507b429..8be3f760 100644
|
|
--- a/src/process/fexecve.c
|
|
+++ b/src/process/fexecve.c
|
|
@@ -1,10 +1,15 @@
|
|
+#define _GNU_SOURCE
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
+#include <fcntl.h>
|
|
+#include "syscall.h"
|
|
|
|
void __procfdname(char *, unsigned);
|
|
|
|
int fexecve(int fd, char *const argv[], char *const envp[])
|
|
{
|
|
+ int r = __syscall(SYS_execveat, fd, "", argv, envp, AT_EMPTY_PATH);
|
|
+ if (r != -ENOSYS) return __syscall_ret(r);
|
|
char buf[15 + 3*sizeof(int)];
|
|
__procfdname(buf, fd);
|
|
execve(buf, argv, envp);
|
|
--
|
|
cgit v1.2.1
|
|
|