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/* partprobe.c - Tell the kernel about partition table changes
*
* Copyright 2014 Bertold Van den Bergh <vandenbergh@bertold.org>
*
* see http://man7.org/linux/man-pages/man8/partprobe.8.html
USE_PARTPROBE(NEWTOY(partprobe, NULL, TOYFLAG_SBIN))
config PARTPROBE
bool "partprobe"
default n
help
partprobe - Tell the kernel about partition table changes
usage: partprobe [devices...]
Asks the kernel to re-read the partition table on the specified
devices.
*/
#include "toys.h"
void update_device(char* path)
{
int sd_fd = open(path, 0);
if(sd_fd < 0){
perror_msg("Unable to open %s", path);
return;
}
if(ioctl(sd_fd, BLKRRPART, NULL) < 0)
perror_msg("ioctl (BLKRRPART) failed, old layout still used");
close(sd_fd);
}
void partprobe_main(void)
{
char** opt;
if(*toys.optargs == NULL){
printf("No devices specified.\n");
exit(EXIT_FAILURE);
}
for (opt = toys.optargs; *opt; opt++) {
update_device(*opt);
}
exit(EXIT_SUCCESS);
}
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