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hurd: Add execveat

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This commit is contained in:
Samuel Thibault
2021-05-17 23:47:47 +00:00
parent 2457175e8b
commit 4d4bb451d5
4 changed files with 123 additions and 43 deletions
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44
sysdeps/mach/hurd/execve.c
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@@ -26,49 +26,7 @@
int
__execve (const char *file_name, char *const argv[], char *const envp[])
{
error_t err;
char *concat_name = NULL;
const char *abs_path;
file_t file = __file_name_lookup (file_name, O_EXEC, 0);
if (file == MACH_PORT_NULL)
return -1;
if (file_name[0] == '/')
{
/* Already an absolute path */
abs_path = file_name;
}
else
{
/* Relative path */
char *cwd = __getcwd (NULL, 0);
if (cwd == NULL)
{
__mach_port_deallocate (__mach_task_self (), file);
return -1;
}
int res = __asprintf (&concat_name, "%s/%s", cwd, file_name);
free (cwd);
if (res == -1)
{
__mach_port_deallocate (__mach_task_self (), file);
return -1;
}
abs_path = concat_name;
}
/* Hopefully this will not return. */
err = _hurd_exec_paths (__mach_task_self (), file,
file_name, abs_path, argv, envp);
/* Oh well. Might as well be tidy. */
__mach_port_deallocate (__mach_task_self (), file);
free (concat_name);
return __hurd_fail (err);
return __execveat (AT_FDCWD, file_name, argv, envp, 0);
}
weak_alias (__execve, execve)