From e36f80cba6d5eefcc1ee664f16c2c72054b83134 Mon Sep 17 00:00:00 2001 From: "Joseph C. Sible" Date: Sun, 2 Sep 2018 13:42:26 -0400 Subject: [PATCH] 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 #include +#include +#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); -- 2.25.1