Attachment 21811 Details for Bug 19469 – Wrapper program exhibiting the problem

Wrapper program exhibiting the problem

duser-wrapper.c (text/x-csrc), 983 bytes, created by Matt McCutchen on 2009-01-08 11:16:50 UTC

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Creator: Matt McCutchen

Created: 2009-01-08 11:16:50 UTC

Size: 983 bytes

patch

obsolete

>#include <unistd.h>
>#include <sys/types.h>
>#include <stdio.h>
>#include <string.h>
>
>#include <polkit-dbus/polkit-dbus.h>
>
>#define POLKIT_ACTION "net.mattmccutchen.duser.check-ext-disk"
>#define TARGET_PROG "/usr/sbin/duser"
>
>int main(int argc, char **argv) {
>	if (geteuid() != 0) {
>		fprintf(stderr, "%s: must be setuid-root\n", argv[0]);
>		return -1;
>	}
>
>	int i;
>	for (i = 1; i < argc; i++) {
>		char *arg = argv[i];
>		if (strcmp(arg, "--partitions") == 0)
>			continue;
>		if (strlen(arg) == 8 && strncmp(arg, "/dev/sd", 7) == 0
>			&& arg[7] >= 'b' && arg[7] <= 'z')
>			continue;
>		fprintf(stderr, "%s: argument %s not allowed\n", argv[0], arg);
>		return -1;
>	}
>
>	int ret = polkit_check_auth(getpid(), POLKIT_ACTION, NULL);
>	fprintf(stderr, "ret is %d\n", ret);
>	if (ret != 1) {
>		fprintf(stderr, "%s: polkit_check_auth failed\n", argv[0]);
>		return -1;
>	}
>
>	argv[0] = TARGET_PROG;
>	execv(argv[0], argv);
>	fprintf(stderr, "%s: failed to exec " TARGET_PROG "\n", argv[0]);
>	return -1;
>}

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Attachments on bug 19469: 21811 | 21815

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