From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001 From: Vladimir Azarov Date: Tue, 1 Oct 2024 15:47:05 +0200 Subject: Initial version --- src/process/fexecve.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 src/process/fexecve.c (limited to 'src/process/fexecve.c') diff --git a/src/process/fexecve.c b/src/process/fexecve.c new file mode 100644 index 0000000..554c198 --- /dev/null +++ b/src/process/fexecve.c @@ -0,0 +1,16 @@ +#define _GNU_SOURCE +#include +#include +#include +#include "syscall.h" + +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); + if (errno == ENOENT) errno = EBADF; + return -1; +} -- cgit v1.2.3