Reduce memory requirements for execve()

2021-01-29 22:00:10 -08:00
parent eaca5b3e81
commit 21e1023d28
7 changed files with 35 additions and 32 deletions
--- a/libc/calls/execve-nt.c
+++ b/libc/calls/execve-nt.c
@@ -47,11 +47,8 @@ textwindows int execve$nt(const char *program, char *const argv[],
      close(i);
    }
  }
-  for (i = 0; argv[i];) ++i;
-  i = (i + 1) * sizeof(char *);
-  argv = memcpy(alloca(i), argv, i);
-  memcpy(argv, &program, sizeof(program));
-  rc = ntspawn(argv, envp, NULL, NULL, true, 0, NULL, &startinfo, &procinfo);
+  rc = ntspawn(program, argv, envp, NULL, NULL, true, 0, NULL, &startinfo,
+               &procinfo);
  if (rc == -1) return -1;
  CloseHandle(procinfo.hThread);
  do {