--- /dev/null
+/*
+ * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+
+#ifdef __NR_sendfile
+
+int
+main(int ac, const char **av)
+{
+ assert(ac == 2);
+
+ (void) close(0);
+ if (open("/dev/zero", O_RDONLY) != 0)
+ return 77;
+
+ int sv[2];
+ if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv))
+ return 77;
+
+ int reg_in = open(av[1], O_RDONLY);
+ if (reg_in < 0)
+ return 77;
+
+ struct stat stb;
+ if (fstat(reg_in, &stb))
+ return 77;
+ const size_t blen = stb.st_size / 3;
+ const size_t alen = stb.st_size - blen;
+ assert(S_ISREG(stb.st_mode) && blen > 0);
+
+ const size_t page_len = sysconf(_SC_PAGESIZE);
+ if (!syscall(__NR_sendfile, 0, 1, NULL, page_len) ||
+ EBADF != errno)
+ return 77;
+ printf("sendfile\\(0, 1, NULL, %lu\\) += -1 EBADF .*\n",
+ (unsigned long) page_len);
+
+ void *p = mmap(NULL, page_len * 2, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+ if (MAP_FAILED == p || munmap(p + page_len, page_len))
+ return 77;
+
+ if (!syscall(__NR_sendfile, 0, 1, p + page_len, page_len))
+ return 77;
+ printf("sendfile\\(0, 1, %#lx, %lu\\) += -1 EFAULT .*\n",
+ (unsigned long) p + page_len, (unsigned long) page_len);
+
+ if (syscall(__NR_sendfile, sv[1], reg_in, NULL, alen) != (long) alen)
+ return 77;
+ printf("sendfile\\(%d, %d, NULL, %lu\\) += %lu\n",
+ sv[1], reg_in, (unsigned long) alen,
+ (unsigned long) alen);
+
+ uint32_t *p_off = p + page_len - sizeof(uint32_t);
+ if (syscall(__NR_sendfile, sv[1], reg_in, p_off, alen) != (long) alen) {
+ printf("sendfile\\(%d, %d, %#lx, %lu\\) += -1 EFAULT .*\n",
+ sv[1], reg_in, (unsigned long) p_off,
+ (unsigned long) alen);
+ --p_off;
+ if (syscall(__NR_sendfile, sv[1], reg_in, p_off, alen)
+ != (long) alen)
+ return 77;
+ }
+ printf("sendfile\\(%d, %d, \\[0\\] => \\[%lu\\], %lu\\) += %lu\n",
+ sv[1], reg_in, (unsigned long) alen,
+ (unsigned long) alen, (unsigned long) alen);
+
+ if (syscall(__NR_sendfile, sv[1], reg_in, p_off, stb.st_size + 1)
+ != (long) blen)
+ return 77;
+ printf("sendfile\\(%d, %d, \\[%lu\\] => \\[%lu\\], %lu\\) += %lu\n",
+ sv[1], reg_in, (unsigned long) alen,
+ (unsigned long) stb.st_size,
+ (unsigned long) stb.st_size + 1,
+ (unsigned long) blen);
+
+ if (p_off == p + page_len - sizeof(uint64_t)) {
+ uint64_t *p_off64 = (uint64_t *) p_off;
+ *p_off64 = 0xcafef00dfacefeed;
+ if (!syscall(__NR_sendfile, sv[1], reg_in, p_off64, 1))
+ return 77;
+ printf("sendfile\\(%d, %d, \\[14627392582579060461\\], 1\\) += -1 EINVAL .*\n",
+ sv[1], reg_in);
+ *p_off64 = 0xdefaced;
+ } else {
+ *p_off = 0xdefaced;
+ }
+ if (syscall(__NR_sendfile, sv[1], reg_in, p_off, 1))
+ return 77;
+ printf("sendfile\\(%d, %d, \\[233811181\\], 1\\) += 0\n",
+ sv[1], reg_in);
+
+ return 0;
+}
+
+#else
+
+int
+main(void)
+{
+ return 77;
+}
+
+#endif
--- /dev/null
+/*
+ * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+
+#ifdef __NR_sendfile64
+
+int
+main(int ac, const char **av)
+{
+ assert(ac == 2);
+
+ (void) close(0);
+ if (open("/dev/zero", O_RDONLY) != 0)
+ return 77;
+
+ int sv[2];
+ if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv))
+ return 77;
+
+ int reg_in = open(av[1], O_RDONLY);
+ if (reg_in < 0)
+ return 77;
+
+ struct stat stb;
+ if (fstat(reg_in, &stb))
+ return 77;
+ const size_t blen = stb.st_size / 3;
+ const size_t alen = stb.st_size - blen;
+ assert(S_ISREG(stb.st_mode) && blen > 0);
+
+ const size_t page_len = sysconf(_SC_PAGESIZE);
+ if (!syscall(__NR_sendfile64, 0, 1, NULL, page_len) ||
+ EBADF != errno)
+ return 77;
+ printf("sendfile64\\(0, 1, NULL, %lu\\) += -1 EBADF .*\n",
+ (unsigned long) page_len);
+
+ void *p = mmap(NULL, page_len * 2, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+ if (MAP_FAILED == p || munmap(p + page_len, page_len))
+ return 77;
+
+ if (!syscall(__NR_sendfile64, 0, 1, p + page_len, page_len))
+ return 77;
+ printf("sendfile64\\(0, 1, %#lx, %lu\\) += -1 EFAULT .*\n",
+ (unsigned long) p + page_len, (unsigned long) page_len);
+
+ if (syscall(__NR_sendfile64, sv[1], reg_in, NULL, alen) != (long) alen)
+ return 77;
+ printf("sendfile64\\(%d, %d, NULL, %lu\\) += %lu\n",
+ sv[1], reg_in, (unsigned long) alen,
+ (unsigned long) alen);
+
+ uint64_t *p_off = p + page_len - sizeof(uint64_t);
+ if (syscall(__NR_sendfile64, sv[1], reg_in, p_off, alen) != (long) alen)
+ return 77;
+ printf("sendfile64\\(%d, %d, \\[0\\] => \\[%lu\\], %lu\\) += %lu\n",
+ sv[1], reg_in, (unsigned long) alen,
+ (unsigned long) alen, (unsigned long) alen);
+
+ if (syscall(__NR_sendfile64, sv[1], reg_in, p_off, stb.st_size + 1)
+ != (long) blen)
+ return 77;
+ printf("sendfile64\\(%d, %d, \\[%lu\\] => \\[%lu\\], %lu\\) += %lu\n",
+ sv[1], reg_in, (unsigned long) alen,
+ (unsigned long) stb.st_size,
+ (unsigned long) stb.st_size + 1,
+ (unsigned long) blen);
+
+ *p_off = 0xcafef00dfacefeed;
+ if (!syscall(__NR_sendfile64, sv[1], reg_in, p_off, 1))
+ return 77;
+ printf("sendfile64\\(%d, %d, \\[14627392582579060461\\], 1\\) += -1 EINVAL .*\n",
+ sv[1], reg_in);
+
+ *p_off = 0xfacefeed;
+ if (syscall(__NR_sendfile64, sv[1], reg_in, p_off, 1))
+ return 77;
+ printf("sendfile64\\(%d, %d, \\[4207869677\\], 1\\) += 0\n",
+ sv[1], reg_in);
+
+ return 0;
+}
+
+#else
+
+int
+main(void)
+{
+ return 77;
+}
+
+#endif
projects / strace / commitdiff