admin/llgo
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

syscall: forkAndExecInChild

Browse Source
This commit is contained in:
xushiwei
2024-07-28 22:27:26 +08:00
parent 09b6b9259c
commit 3a8642b1e0
2 changed files with 3 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

0
_cmptest/_osexec/exec.go → _cmptest/osexec/exec.go
View File

11
internal/lib/syscall/exec_libc2.go
View File

@@ -261,22 +261,17 @@ func forkAndExecInChild(argv0 *c.Char, argv, envv **c.Char, chroot, dir *c.Char,
if fd[i] == i { if fd[i] == i {
// dup2(i, i) won't clear close-on-exec flag on Linux, // dup2(i, i) won't clear close-on-exec flag on Linux,
// probably not elsewhere either. // probably not elsewhere either.
ret := os.Fcntl(c.Int(fd[i]), syscall.F_SETFD, 0) if ret := os.Fcntl(c.Int(fd[i]), syscall.F_SETFD, 0); ret != 0 {
if ret != 0 {
err1 = Errno(ret) err1 = Errno(ret)
goto childerror goto childerror
} }
continue continue
} }
/* TODO(xsw):
// The new fd is created NOT close-on-exec, // The new fd is created NOT close-on-exec,
// which is exactly what we want. if ret := os.Dup2(c.Int(fd[i]), c.Int(i)); ret != 0 {
_, _, err1 = rawSyscall(abi.FuncPCABI0(libc_dup2_trampoline), uintptr(fd[i]), uintptr(i), 0) err1 = Errno(ret)
if err1 != 0 {
goto childerror goto childerror
} }
*/
panic("todo: syscall.forkAndExecInChild - dup2")
} }
// By convention, we don't close-on-exec the fds we are // By convention, we don't close-on-exec the fds we are