27a2afc1e7
- Remove unused code - Use standard functions declared in common.c - Change tests to do a runtime test for the max name length of a path component (aka NAME_MAX). The actual value might differ from the hard coded NAME_MAX depending on the file system used.
234 lines
6.2 KiB
C
234 lines
6.2 KiB
C
/* test26: lseek() Author: Jan-Mark Wams (jms@cs.vu.nl) */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <errno.h>
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#include <time.h>
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#include <stdio.h>
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#define MAX_ERROR 4
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#define ITERATIONS 10
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#define System(cmd) if (system(cmd) != 0) printf("``%s'' failed\n", cmd)
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#define Chdir(dir) if (chdir(dir) != 0) printf("Can't goto %s\n", dir)
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#define Stat(a,b) if (stat(a,b) != 0) printf("Can't stat %s\n", a)
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#define Mkfifo(f) if (mkfifo(f,0777)!=0) printf("Can't make fifo %s\n", f)
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#include "common.c"
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_PROTOTYPE(void test26a, (void));
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_PROTOTYPE(void test26b, (void));
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_PROTOTYPE(void test26c, (void));
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int main(int argc, char *argv[])
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{
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int i, m = 0xFFFF;
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sync();
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if (argc == 2) m = atoi(argv[1]);
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start(26);
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for (i = 0; i < 10; i++) {
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if (m & 0001) test26a();
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if (m & 0002) test26b();
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if (m & 0004) test26c();
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}
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quit();
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}
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void test26a()
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{ /* Test normal operation. */
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int fd;
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char buf[20];
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int i, j;
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struct stat st;
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subtest = 1;
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System("rm -rf ../DIR_26/*");
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System("echo -n hihaho > hihaho");
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if ((fd = open("hihaho", O_RDONLY)) != 3) e(1);
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if (lseek(fd, (off_t) 3, SEEK_SET) != (off_t) 3) e(2);
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if (read(fd, buf, 1) != 1) e(3);
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if (buf[0] != 'a') e(4);
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if (lseek(fd, (off_t) - 1, SEEK_END) != 5) e(5);
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if (read(fd, buf, 1) != 1) e(6);
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if (buf[0] != 'o') e(7);
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/* Seek past end of file. */
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if (lseek(fd, (off_t) 1000, SEEK_END) != 1006) e(8);
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if (read(fd, buf, 1) != 0) e(9);
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/* Lseek() should not extend the file. */
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if (fstat(fd, &st) != 0) e(10);
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if (st.st_size != (off_t) 6) e(11);
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if (close(fd) != 0) e(12);
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/* Probeer lseek met write. */
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if ((fd = open("hihaho", O_WRONLY)) != 3) e(13);
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if (lseek(fd, (off_t) 3, SEEK_SET) != (off_t) 3) e(14);
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if (write(fd, "e", 1) != 1) e(15);
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if (lseek(fd, (off_t) 1000, SEEK_END) != 1006) e(16);
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/* Lseek() should not extend the file. */
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if (fstat(fd, &st) != 0) e(17);
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if (st.st_size != (off_t) 6) e(18);
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if (write(fd, "e", 1) != 1) e(19);
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/* Lseek() and a subsequent write should! */
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if (fstat(fd, &st) != 0) e(20);
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if (st.st_size != (off_t) 1007) e(21);
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if (close(fd) != 0) e(22);
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/* Check the file, it should start with hiheho. */
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if ((fd = open("hihaho", O_RDONLY)) != 3) e(23);
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if (read(fd, buf, 6) != 6) e(24);
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if (strncmp(buf, "hiheho", 6) != 0) e(25);
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/* The should be zero bytes and a trailing ``e''. */
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if (sizeof(buf) < 10) e(26);
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for (i = 1; i <= 20; i++) {
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if (read(fd, buf, 10) != 10) e(27);
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for (j = 0; j < 10; j++)
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if (buf[j] != '\0') break;
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if (j != 10) e(28);
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if (lseek(fd, (off_t) 15, SEEK_CUR) != (off_t) i * 25 + 6) e(29);
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}
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if (lseek(fd, (off_t) 1006, SEEK_SET) != (off_t) 1006) e(30);
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if (read(fd, buf, sizeof(buf)) != 1) e(31);
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if (buf[0] != 'e') e(32);
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if (lseek(fd, (off_t) - 1, SEEK_END) != (off_t) 1006) e(33);
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if (read(fd, buf, sizeof(buf)) != 1) e(34);
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if (buf[0] != 'e') e(35);
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/* Closing time. */
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if (close(fd) != 0) e(36);
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}
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void test26b()
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{
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int fd1, fd2, fd3;
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int stat_loc;
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subtest = 2;
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System("rm -rf ../DIR_26/*");
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/* See if childs lseek() is effecting the parent. * See also if
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* lseeking() on same file messes things up. */
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/* Creat a file of 11 bytes. */
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if ((fd1 = open("santa", O_WRONLY | O_CREAT, 0777)) != 3) e(1);
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if (write(fd1, "ho ho ho ho", 11) != 11) e(2);
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if (close(fd1) != 0) e(3);
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/* Open it multiple times. */
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if ((fd1 = open("santa", O_RDONLY)) != 3) e(4);
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if ((fd2 = open("santa", O_WRONLY)) != 4) e(5);
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if ((fd3 = open("santa", O_RDWR)) != 5) e(6);
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/* Set all offsets different. */
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if (lseek(fd1, (off_t) 2, SEEK_SET) != 2) e(7);
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if (lseek(fd2, (off_t) 4, SEEK_SET) != 4) e(8);
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if (lseek(fd3, (off_t) 7, SEEK_SET) != 7) e(9);
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/* Have a child process do additional offset changes. */
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switch (fork()) {
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case -1: printf("Can't fork\n"); break;
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case 0:
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alarm(20);
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if (lseek(fd1, (off_t) 1, SEEK_CUR) != 3) e(10);
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if (lseek(fd2, (off_t) 5, SEEK_SET) != 5) e(11);
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if (lseek(fd3, (off_t) - 4, SEEK_END) != 7) e(12);
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exit(0);
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default:
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wait(&stat_loc);
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if (stat_loc != 0) e(13); /* Alarm? */
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}
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/* Check if the new offsets are correct. */
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if (lseek(fd1, (off_t) 0, SEEK_CUR) != 3) e(14);
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if (lseek(fd2, (off_t) 0, SEEK_CUR) != 5) e(15);
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if (lseek(fd3, (off_t) 0, SEEK_CUR) != 7) e(16);
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/* Close the file. */
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if (close(fd1) != 0) e(17);
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if (close(fd2) != 0) e(18);
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if (close(fd3) != 0) e(19);
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}
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void test26c()
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{ /* Test error returns. */
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int fd;
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int tube[2];
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int i, stat_loc;
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subtest = 3;
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System("rm -rf ../DIR_26/*");
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/* Fifo's can't be lseeked(). */
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Mkfifo("fifo");
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switch (fork()) {
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case -1: printf("Can't fork\n"); break;
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case 0:
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alarm(3); /* Try for max 3 secs. */
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if ((fd = open("fifo", O_RDONLY)) != 3) e(1);
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if (lseek(fd, (off_t) 0, SEEK_SET) != (off_t) - 1) e(2);
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if (errno != ESPIPE) e(3);
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if (close(fd) != 0) e(4);
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exit(0);
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default:
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if ((fd = open("fifo", O_WRONLY)) != 3) e(5);
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wait(&stat_loc);
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if (stat_loc != 0) e(6);/* Alarm? */
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if (close(fd) != 0) e(7);
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}
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/* Pipes can't be lseeked() eigther. */
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if (pipe(tube) != 0) e(8);
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switch (fork()) {
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case -1: printf("Can't fork\n"); break;
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case 0:
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alarm(3); /* Max 3 sconds wait. */
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if (lseek(tube[0], (off_t) 0, SEEK_SET) != (off_t) - 1) e(9);
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if (errno != ESPIPE) e(10);
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if (lseek(tube[1], (off_t) 0, SEEK_SET) != (off_t) - 1) e(11);
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if (errno != ESPIPE) e(12);
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exit(0);
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default:
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wait(&stat_loc);
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if (stat_loc != 0) e(14); /* Alarm? */
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}
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/* Close the pipe. */
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if (close(tube[0]) != 0) e(15);
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if (close(tube[1]) != 0) e(16);
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/* Whence arument invalid. */
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System("echo -n contact > file");
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if ((fd = open("file", O_RDWR)) != 3) e(17);
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for (i = -1000; i < 1000; i++) {
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if (i == SEEK_SET || i == SEEK_END || i == SEEK_CUR) continue;
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if (lseek(fd, (off_t) 0, i) != (off_t) -1) e(18);
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if (errno != EINVAL) e(19);
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}
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if (close(fd) != 0) e(20);
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/* EBADF for bad fides. */
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for (i = -1000; i < 1000; i++) {
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if (i >= 0 && i < OPEN_MAX) continue;
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if (lseek(i, (off_t) 0, SEEK_SET) != (off_t) - 1) e(21);
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if (lseek(i, (off_t) 0, SEEK_END) != (off_t) - 1) e(22);
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if (lseek(i, (off_t) 0, SEEK_CUR) != (off_t) - 1) e(23);
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}
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}
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