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wiringPi
no-suid.patch
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File no-suid.patch of Package wiringPi
Author: Dave Jones <dave.jones@canonical.com> Description: Removed check for root on execution of gpio. The wiringPi library already has the ability to use the unprivileged /dev/gpiomem device if it can't open /dev/mem so there's no need to require root access for the gpio command, and hence no need to set the gpio command to have suid root privileges. Index: b/gpio/gpio.c =================================================================== --- a/gpio/gpio.c 2020-08-27 10:38:41.019466888 +0200 +++ b/gpio/gpio.c 2020-08-27 10:40:02.110609029 +0200 @@ -1371,12 +1371,6 @@ int main (int argc, char *argv []) exit (EXIT_SUCCESS) ; } - if (geteuid () != 0) - { - fprintf (stderr, "%s: Must be root to run. Program should be suid root. This is an error.\n", argv [0]) ; - exit (EXIT_FAILURE) ; - } - // Initial test for /sys/class/gpio operations: /**/ if (strcasecmp (argv [1], "exports" ) == 0) { doExports (argc, argv) ; return 0 ; }
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