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Check for Windows admin privileges

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This commit is contained in:
Joseph C. Lehner 2016-08-09 17:01:29 +02:00
parent 3df6829e4a
commit dee3c7f20e
1 changed files with 40 additions and 10 deletions
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50
main.c
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@ -70,9 +70,44 @@ void usage(FILE *fp)
); );
} }
#ifdef NMRPFLASH_WINDOWS
void require_admin()
{
SID_IDENTIFIER_AUTHORITY auth = SECURITY_NT_AUTHORITY;
PSID adminGroup = NULL;
BOOL success = AllocateAndInitializeSid(
&auth, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS,
0, 0, 0, 0, 0, 0, &adminGroup
);
if (success) {
if (CheckTokenMembership(NULL, adminGroup, &success)) {
if (!success) {
fprintf(stderr, "Error: must be run as administrator");
exit(1);
} else {
return;
}
}
FreeSid(adminGroup);
}
fprintf(stderr, "Warning: failed to check administrator privileges");
}
#else
void require_admin()
{
if (getuid() != 0) {
fprintf(stderr, "Error: must be run as root");
exit(1);
}
}
#endif
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
int c, val, max; int c, val, max;
int list = 0;
struct nmrpd_args args = { struct nmrpd_args args = {
.rx_timeout = 200, .rx_timeout = 200,
.ul_timeout = 120000, .ul_timeout = 120000,
@ -158,7 +193,8 @@ int main(int argc, char **argv)
++verbosity; ++verbosity;
break; break;
case 'L': case 'L':
val = ethsock_list_all(); list = 1;
break;
goto out; goto out;
case 'h': case 'h':
usage(stdout); usage(stdout);
@ -179,19 +215,13 @@ int main(int argc, char **argv)
} }
} }
if ((!args.file_local && !args.tftpcmd) || !args.intf || !args.ipaddr) { if (!list && ((!args.file_local && !args.tftpcmd) || !args.intf || !args.ipaddr)) {
usage(stderr); usage(stderr);
return 1; return 1;
} }
#ifndef NMRPFLASH_WINDOWS require_admin();
if (geteuid() != 0) { val = !list ? nmrp_do(&args) : ethsock_list_all();
fprintf(stderr, "This program must be run as root!\n");
return 1;
}
#endif
val = nmrp_do(&args);
out: out:
#ifdef NMRPFLASH_WINDOWS #ifdef NMRPFLASH_WINDOWS