/var/lib/pcp/testsuite/src/chkacc4.c is in pcp-testsuite 3.9.10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2013 Red Hat.
*
* Exercise basic user access control checking APIs.
* (non-Win32 variant of the test, uses uid_t/gid_t)
*/
#include <pcp/pmapi.h>
#include <pcp/impl.h>
#if defined(HAVE_PWD_H)
#include <pwd.h>
#endif
#if defined(HAVE_GRP_H)
#include <grp.h>
#endif
gid_t gid;
struct group *grp, *groups;
int ngroups;
uid_t uid;
struct passwd *usr, *users;
int nusers;
unsigned int op;
int
check_users(void)
{
int c, s, sts = 0;
for (c = 0; c < nusers; c++) {
usr = &users[c];
if ((s = __pmAccAddUser(usr->pw_name, 1 << c, 1 << c, 0)) < 0) {
printf("cannot add user for op%d: %s\n", c, pmErrStr(s));
sts = s;
}
}
if (sts < 0)
return 1;
putc('\n', stderr);
__pmAccDumpUsers(stderr);
putc('\n', stderr);
for (c = 0; c < WORD_BIT; c++) {
usr = &users[c % nusers];
sts = __pmAccAddAccount(usr->pw_name, NULL, &op);
if (sts < 0) {
printf("add user #%d (%s): %s\n", c, usr->pw_name, pmErrStr(sts));
continue;
}
else if (op != (1 << c))
printf("account %d: __pmAccAddAccount returns denyOpsResult 0x%x (expected 0x%x)\n",
c, op, 1 << c);
}
putc('\n', stderr);
__pmAccDumpUsers(stderr);
putc('\n', stderr);
return 0;
}
int
check_groups(void)
{
int c, s, sts = 0;
for (c = 0; c < ngroups; c++) {
grp = &groups[c];
if ((s = __pmAccAddGroup(grp->gr_name, 1 << c, 1 << c, 0)) < 0) {
printf("cannot add group for op%d: %s\n", c, pmErrStr(s));
sts = s;
}
}
if (sts < 0)
return 1;
putc('\n', stderr);
__pmAccDumpGroups(stderr);
putc('\n', stderr);
for (c = 0; c < WORD_BIT; c++) {
grp = &groups[c % ngroups];
sts = __pmAccAddAccount(NULL, grp->gr_name, &op);
if (sts < 0) {
printf("add group #%d (%s): %s\n", c, grp->gr_name, pmErrStr(sts));
continue;
}
else if (op != (1 << c))
printf("account %d: __pmAccAddAccount returns denyOpsResult 0x%x (expected 0x%x)\n",
c, op, 1 << c);
}
putc('\n', stderr);
__pmAccDumpGroups(stderr);
putc('\n', stderr);
return 0;
}
int
main(int argc, char **argv)
{
int c, sts;
int errflag = 0;
char *name;
size_t size;
__pmSetProgname(argv[0]);
while ((c = getopt(argc, argv, "D:u:g:?")) != EOF) {
switch (c) {
case 'D': /* debug flag */
if ((sts = __pmParseDebug(optarg)) < 0) {
fprintf(stderr, "%s: unrecognized debug flag specification (%s)\n",
pmProgname, optarg);
errflag++;
}
else
pmDebug |= sts;
break;
case 'g': /* another group ID */
gid = atoi(optarg);
if ((grp = getgrgid(gid)) == NULL) {
fprintf(stderr, "%s: getgrgid: unknown group identifier (%s)\n",
pmProgname, optarg);
errflag++;
break;
}
size = (ngroups + 1) * sizeof(*grp);
if ((groups = realloc(groups, size)) == NULL)
__pmNoMem("gid realloc", size, PM_FATAL_ERR);
groups[ngroups] = *grp;
for (c = 0, name = grp->gr_mem[0]; name; c++, name++)
groups[ngroups].gr_mem[c] = strdup(name);
ngroups++;
break;
case 'u': /* another user ID */
uid = atoi(optarg);
if ((usr = getpwuid(uid)) == NULL) {
fprintf(stderr, "%s: getpwuid: unknown user identifier (%s)\n",
pmProgname, optarg);
errflag++;
break;
}
size = (nusers + 1) * sizeof(*usr);
if ((users = realloc(users, size)) == NULL)
__pmNoMem("uid realloc", size, PM_FATAL_ERR);
memset(&users[nusers], 0, sizeof(*usr));
users[nusers].pw_name = strdup(usr->pw_name);
users[nusers].pw_uid = usr->pw_uid;
users[nusers].pw_gid = usr->pw_gid;
nusers++;
break;
case '?':
default:
errflag++;
break;
}
}
if (errflag) {
fprintf(stderr,
"Usage: %s [options] uid ...\n\
\n\
Options:\n\
-D pmdebug set debugging diagnostics flag\n\
-u uid add numeric user ID to set used in testing\n\
-g gid add numeric group ID to set used in testing\n",
pmProgname);
return 1;
}
sts = 0;
for (op = 0; op < WORD_BIT; op++) {
if ((c = __pmAccAddOp(1 << op)) < 0) {
printf("Bad op %d: %s\n", op, pmErrStr(c));
sts = c;
}
if ((c = __pmAccAddOp(1 << op)) >= 0) {
printf("duplicate op test failed for op %d\n", op);
sts = -EINVAL;
}
}
if (sts < 0)
return 1;
if (nusers)
if ((sts = check_users()) != 0)
return sts;
if (ngroups)
if ((sts = check_groups()) != 0)
return sts;
return 0;
}
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