Use C to get its mount point (cat/proc/mounts) after inserting the USB drive automatically after Linux

It is now possible to get the node name (via function Udev_device_get_devnode ()) of the USB stick when it is inserted through Libudev, which is/DEV/SDB1

What I do now is to read the/proc/mounts file, find the line that has/DEV/SDB1, parse out the mount point/media/11111

The contents of the/proc/mounts file are as follows:

　
Sysfs/sys Sysfs rw,nosuid,nodev,noexec,relatime 0 0
PROC/PROC proc Rw,nosuid,nodev,noexec,relatime 0 0
Udev/dev Devtmpfs rw,relatime,size=2002180k,nr_inodes=208893,mode=755 0 0
Devpts/dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
/dev/sdb1/media/11111 vfat ...
...

But I don't think it's good to know if there is a system API that provides such a feature

Use C to get its mount point (cat/proc/mounts) after inserting the USB drive automatically after Linux