# 需要导入模块: import os [as 别名]# 或者: from os importO_NOFOLLOW[as 别名]def_secure_open_write(filename, fmode):# We only want to write to this file, so open it in write only modeflags = os.O_WRONLY# os.O_CREAT | os.O_EXCL will fail if the file already exists, so we...
int main (void) { int fd = open("/dev/null", O_RDWR | O_NOFOLLOW, 0); if (fd < 0) perror("open(/dev/null)"); return fd; } $ gcc a.c ; ./a.exe open(/dev/null): Too many levels of symbolic links While troubleshooting this, there were times where it succeeded and the...
Recently, O_NOFOLLOW was added to several calls into robust_open(). Inthat function, if the fd returned by open() is too low (in the stdiorange 0-2), then it closes it, and opens /dev/null to pad out the fd'suntil we reach at least fd#3. However, it uses the same flags t...
的系统上用 O_CREAT | O_WRONLY | O_TRUNC | O_NOFOLLOW 和 O_CREAT | O_WRONLY | O_APPEND | O_NOFOLLOW 模拟 open 。我可以在某种程度上实现我的要求: struct stat lst; if (lstat(filename, &lst) != -1 && S_ISLNK(lst.st_mode)) { errno = ELOOP; return -1; } mode_t mode = ...
> Recently, O_NOFOLLOW was added to several calls into robust_open(). In > that function, if the fd returned by open() is too low (in the stdio > range 0-2), then it closes it, and opens /dev/null to pad out the fd's ...
Recently, O_NOFOLLOW was added to several calls into robust_open(). In that function, if the fd returned by open() is too low (in the stdio range 0-2), then it closes it, and opens /dev/null to pad out the fd's until we reach at least fd#3. ...