* Check decoding of setgroups/setgroups32 syscalls.
*
* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
+ * Copyright (c) 2016-2017 The strace developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
# include <stdio.h>
# include <unistd.h>
+void
+printuid(GID_TYPE id)
+{
+ if (id == (GID_TYPE) -1U)
+ printf("-1");
+ else
+ printf("%u", id);
+}
+
int
main(void)
{
+ const char *errstr;
+
/* check how the first argument is decoded */
- if (syscall(SYSCALL_NR, 0, 0))
- printf("%s(0, NULL) = -1 %s (%m)\n", SYSCALL_NAME, errno2name());
- else
- printf("%s(0, NULL) = 0\n", SYSCALL_NAME);
+ long rc = syscall(SYSCALL_NR, 0, 0);
+ printf("%s(0, NULL) = %s\n", SYSCALL_NAME, sprintrc(rc));
- if (syscall(SYSCALL_NR, (long) 0xffffffff00000000ULL, 0))
- printf("%s(0, NULL) = -1 %s (%m)\n",
- SYSCALL_NAME, errno2name());
- else
- printf("%s(0, NULL) = 0\n", SYSCALL_NAME);
+ rc = syscall(SYSCALL_NR, F8ILL_KULONG_MASK, 0);
+ printf("%s(0, NULL) = %s\n", SYSCALL_NAME, sprintrc(rc));
- syscall(SYSCALL_NR, 1, 0);
- printf("%s(1, NULL) = -1 %s (%m)\n", SYSCALL_NAME, errno2name());
+ rc = syscall(SYSCALL_NR, 1, 0);
+ printf("%s(1, NULL) = %s\n", SYSCALL_NAME, sprintrc(rc));
- syscall(SYSCALL_NR, (long) 0xffffffff00000001ULL, 0);
- printf("%s(1, NULL) = -1 %s (%m)\n", SYSCALL_NAME, errno2name());
+ rc = syscall(SYSCALL_NR, (long) 0xffffffff00000001ULL, 0);
+ printf("%s(1, NULL) = %s\n", SYSCALL_NAME, sprintrc(rc));
- syscall(SYSCALL_NR, -1U, 0);
- printf("%s(%u, NULL) = -1 %s (%m)\n", SYSCALL_NAME, -1U, errno2name());
+ rc = syscall(SYSCALL_NR, -1U, 0);
+ printf("%s(%d, NULL) = %s\n", SYSCALL_NAME, -1, sprintrc(rc));
- syscall(SYSCALL_NR, -1L, 0);
- printf("%s(%u, NULL) = -1 %s (%m)\n", SYSCALL_NAME, -1U, errno2name());
+ rc = syscall(SYSCALL_NR, -1L, 0);
+ printf("%s(%d, NULL) = %s\n", SYSCALL_NAME, -1, sprintrc(rc));
/* check how the second argument is decoded */
- const GID_TYPE *const g1 = tail_alloc(sizeof(*g1));
+ TAIL_ALLOC_OBJECT_CONST_PTR(const GID_TYPE, g1);
GID_TYPE *const g2 = tail_alloc(sizeof(*g2) * 2);
GID_TYPE *const g3 = tail_alloc(sizeof(*g3) * 3);
- if (syscall(SYSCALL_NR, 0, g1 + 1))
- printf("%s(0, []) = -1 %s (%m)\n",
- SYSCALL_NAME, errno2name());
- else
- printf("%s(0, []) = 0\n", SYSCALL_NAME);
+ rc = syscall(SYSCALL_NR, 0, g1 + 1);
+ printf("%s(0, []) = %s\n", SYSCALL_NAME, sprintrc(rc));
- if (syscall(SYSCALL_NR, 1, g1))
- printf("%s(1, [%u]) = -1 %s (%m)\n",
- SYSCALL_NAME, (unsigned) *g1, errno2name());
- else
- printf("%s(1, [%u]) = 0\n",
- SYSCALL_NAME, (unsigned) *g1);
+ rc = syscall(SYSCALL_NR, 1, g1);
+ errstr = sprintrc(rc);
+ printf("%s(1, [", SYSCALL_NAME);
+ printuid(*g1);
+ printf("]) = %s\n", errstr);
- syscall(SYSCALL_NR, 1, g1 + 1);
- printf("%s(1, %p) = -1 %s (%m)\n",
- SYSCALL_NAME, g1 + 1, errno2name());
+ rc = syscall(SYSCALL_NR, 1, g1 + 1);
+ printf("%s(1, %p) = %s\n", SYSCALL_NAME, g1 + 1, sprintrc(rc));
- syscall(SYSCALL_NR, 1, -1L);
- printf("%s(1, %#lx) = -1 %s (%m)\n", SYSCALL_NAME, -1L, errno2name());
+ rc = syscall(SYSCALL_NR, 1, -1L);
+ printf("%s(1, %#lx) = %s\n", SYSCALL_NAME, -1L, sprintrc(rc));
- syscall(SYSCALL_NR, 2, g1);
- printf("%s(2, [%u, %p]) = -1 %s (%m)\n",
- SYSCALL_NAME, (unsigned) *g1, g1 + 1, errno2name());
+ rc = syscall(SYSCALL_NR, 2, g1);
+ errstr = sprintrc(rc);
+ printf("%s(2, [", SYSCALL_NAME);
+ printuid(*g1);
+ printf(", %p]) = %s\n", g1 + 1, errstr);
g2[0] = -2;
g2[1] = -3;
- if (syscall(SYSCALL_NR, 2, g2))
- printf("%s(2, [%u, %u]) = -1 %s (%m)\n", SYSCALL_NAME,
- (unsigned) g2[0], (unsigned) g2[1], errno2name());
- else
- printf("%s(2, [%u, %u]) = 0\n", SYSCALL_NAME,
- (unsigned) g2[0], (unsigned) g2[1]);
-
- syscall(SYSCALL_NR, 3, g2);
- printf("%s(3, [%u, %u, %p]) = -1 %s (%m)\n", SYSCALL_NAME,
- (unsigned) g2[0], (unsigned) g2[1], g2 + 2, errno2name());
+ rc = syscall(SYSCALL_NR, 2, g2);
+ errstr = sprintrc(rc);
+ printf("%s(2, [", SYSCALL_NAME);
+ printuid(g2[0]);
+ printf(", ");
+ printuid(g2[1]);
+ printf("]) = %s\n", errstr);
+
+ rc = syscall(SYSCALL_NR, 3, g2);
+ errstr = sprintrc(rc);
+ printf("%s(3, [", SYSCALL_NAME);
+ printuid(g2[0]);
+ printf(", ");
+ printuid(g2[1]);
+ printf(", %p]) = %s\n", g2 + 2, errstr);
g3[0] = 0;
g3[1] = 1;
- if (syscall(SYSCALL_NR, 3, g3))
- printf("%s(3, [%u, %u, ...]) = -1 %s (%m)\n", SYSCALL_NAME,
- (unsigned) g3[0], (unsigned) g3[1], errno2name());
- else
- printf("%s(3, [%u, %u]) = 0\n", SYSCALL_NAME,
- (unsigned) g3[0], (unsigned) g3[1]);
-
- syscall(SYSCALL_NR, 4, g3);
- printf("%s(4, [%u, %u, ...]) = -1 %s (%m)\n", SYSCALL_NAME,
- (unsigned) g3[0], (unsigned) g3[1], errno2name());
-
- long rc = sysconf(_SC_NGROUPS_MAX);
+ rc = syscall(SYSCALL_NR, 3, g3);
+ errstr = sprintrc(rc);
+ printf("%s(3, [", SYSCALL_NAME);
+ printuid(g3[0]);
+ printf(", ");
+ printuid(g3[1]);
+ printf(", ...]) = %s\n", errstr);
+
+ rc = syscall(SYSCALL_NR, 4, g3);
+ errstr = sprintrc(rc);
+ printf("%s(4, [", SYSCALL_NAME);
+ printuid(g3[0]);
+ printf(", ");
+ printuid(g3[1]);
+ printf(", ...]) = %s\n", errstr);
+
+ rc = sysconf(_SC_NGROUPS_MAX);
const unsigned ngroups_max = rc;
if ((unsigned long) rc == ngroups_max && (int) ngroups_max > 0) {
- syscall(SYSCALL_NR, ngroups_max, g3);
- printf("%s(%u, [%u, %u, ...]) = -1 %s (%m)\n", SYSCALL_NAME,
- ngroups_max, (unsigned) g3[0], (unsigned) g3[1],
- errno2name());
-
- const unsigned long size =
- (unsigned long) 0xffffffff00000000ULL | ngroups_max;
- syscall(SYSCALL_NR, size, g3);
- printf("%s(%u, [%u, %u, ...]) = -1 %s (%m)\n", SYSCALL_NAME,
- ngroups_max, (unsigned) g3[0], (unsigned) g3[1],
- errno2name());
-
- syscall(SYSCALL_NR, ngroups_max + 1, g3);
- printf("%s(%u, %p) = -1 %s (%m)\n", SYSCALL_NAME,
- ngroups_max + 1, g3, errno2name());
+ rc = syscall(SYSCALL_NR, ngroups_max, g3);
+ errstr = sprintrc(rc);
+ printf("%s(%d, [", SYSCALL_NAME, ngroups_max);
+ printuid(g3[0]);
+ printf(", ");
+ printuid(g3[1]);
+ printf(", ...]) = %s\n", errstr);
+
+ rc = syscall(SYSCALL_NR, F8ILL_KULONG_MASK | ngroups_max, g3);
+ errstr = sprintrc(rc);
+ printf("%s(%d, [", SYSCALL_NAME, ngroups_max);
+ printuid(g3[0]);
+ printf(", ");
+ printuid(g3[1]);
+ printf(", ...]) = %s\n", errstr);
+
+ rc = syscall(SYSCALL_NR, ngroups_max + 1, g3);
+ printf("%s(%d, %p) = %s\n", SYSCALL_NAME,
+ ngroups_max + 1, g3, sprintrc(rc));
}
puts("+++ exited with 0 +++");
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