517 lines
12 KiB
C
517 lines
12 KiB
C
/*
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* fstat.c
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*
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* Created on: 2010-11-17
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* Author: bernard
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <finsh.h>
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#include <errno.h>
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#include <sys/fcntl.h>
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#include <sys/stat.h>
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const char* text = "this is a test string\n";
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void libc_fstat()
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{
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int fd;
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struct stat s;
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fd = open("/tmp/tt.txt", O_WRONLY | O_CREAT, 0);
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if (fd < 0)
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{
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printf("open failed\n");
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return;
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}
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write(fd, text, strlen(text) + 1);
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printf("begin: %d\n", lseek(fd, 0, SEEK_SET));
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printf("end: %d\n", lseek(fd, 0, SEEK_END));
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printf("fstat result: %d\n", fstat(fd, &s));
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close(fd);
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}
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FINSH_FUNCTION_EXPORT(libc_fstat, fstat test for libc);
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void libc_lseek()
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{
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int fd;
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fd = open("/tmp/tt.txt", O_WRONLY | O_CREAT, 0);
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if (fd < 0)
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{
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printf("open failed\n");
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return;
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}
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write(fd, text, strlen(text) + 1);
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printf("begin: %d\n", lseek(fd, 0, SEEK_SET));
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printf("end: %d\n", lseek(fd, 0, SEEK_END));
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close(fd);
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}
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FINSH_FUNCTION_EXPORT(libc_lseek, lseek test for libc);
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void sleep(int tick)
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{
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rt_thread_sleep(tick);
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}
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int libc_fseek(void)
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{
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const char *tmpdir;
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char *fname;
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int fd;
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FILE *fp;
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const char outstr[] = "hello world!\n";
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char strbuf[sizeof outstr];
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char buf[200];
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struct stat st1;
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struct stat st2;
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int result = 0;
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tmpdir = getenv("TMPDIR");
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if (tmpdir == NULL || tmpdir[0] == '\0')
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tmpdir = "/tmp";
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asprintf(&fname, "%s/tst-fseek.XXXXXX", tmpdir);
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if (fname == NULL)
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{
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fprintf(stderr, "cannot generate name for temporary file: %s\n",
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strerror(errno));
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return 1;
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}
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/* Create a temporary file. */
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fd = mkstemp(fname);
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if (fd == -1)
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{
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fprintf(stderr, "cannot open temporary file: %s\n", strerror(errno));
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return 1;
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}
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fp = fdopen(fd, "w+");
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if (fp == NULL)
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{
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fprintf(stderr, "cannot get FILE for temporary file: %s\n", strerror(
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errno));
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return 1;
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}
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setbuffer(fp, strbuf, sizeof(outstr) - 1);
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if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
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{
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printf("%d: write error\n", __LINE__);
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result = 1;
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goto out;
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}
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/* The EOF flag must be reset. */
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if (fgetc(fp) != EOF)
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{
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printf("%d: managed to read at end of file\n", __LINE__);
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result = 1;
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}
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else if (!feof(fp))
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{
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printf("%d: EOF flag not set\n", __LINE__);
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result = 1;
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}
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if (fseek(fp, 0, SEEK_CUR) != 0)
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{
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printf("%d: fseek(fp, 0, SEEK_CUR) failed\n", __LINE__);
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result = 1;
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}
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else if (feof(fp))
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{
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printf("%d: fseek() didn't reset EOF flag\n", __LINE__);
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result = 1;
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}
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/* Do the same for fseeko(). */
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if (fgetc(fp) != EOF)
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{
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printf("%d: managed to read at end of file\n", __LINE__);
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result = 1;
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}
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else if (!feof(fp))
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{
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printf("%d: EOF flag not set\n", __LINE__);
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result = 1;
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}
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if (fseeko(fp, 0, SEEK_CUR) != 0)
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{
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printf("%d: fseek(fp, 0, SEEK_CUR) failed\n", __LINE__);
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result = 1;
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}
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else if (feof(fp))
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{
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printf("%d: fseek() didn't reset EOF flag\n", __LINE__);
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result = 1;
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}
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/* Go back to the beginning of the file: absolute. */
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if (fseek(fp, 0, SEEK_SET) != 0)
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{
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printf("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__);
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result = 1;
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}
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else if (fflush(fp) != 0)
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{
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printf("%d: fflush() failed\n", __LINE__);
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result = 1;
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}
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else if (lseek(fd, 0, SEEK_CUR) != 0)
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{
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int pos = lseek(fd, 0, SEEK_CUR);
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printf("%d: lseek() returned different position, pos %d\n", __LINE__,
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pos);
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result = 1;
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}
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else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
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{
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printf("%d: fread() failed\n", __LINE__);
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result = 1;
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}
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else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
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{
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printf("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__);
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result = 1;
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}
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/* Now with fseeko. */
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if (fseeko(fp, 0, SEEK_SET) != 0)
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{
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printf("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__);
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result = 1;
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}
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else if (fflush(fp) != 0)
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{
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printf("%d: fflush() failed\n", __LINE__);
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result = 1;
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}
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else if (lseek(fd, 0, SEEK_CUR) != 0)
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{
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printf("%d: lseek() returned different position\n", __LINE__);
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result = 1;
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}
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else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
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{
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printf("%d: fread() failed\n", __LINE__);
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result = 1;
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}
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else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
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{
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printf("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__);
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result = 1;
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}
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/* Go back to the beginning of the file: relative. */
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if (fseek(fp, -((int) sizeof(outstr) - 1), SEEK_CUR) != 0)
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{
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printf("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__);
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result = 1;
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}
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else if (fflush(fp) != 0)
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{
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printf("%d: fflush() failed\n", __LINE__);
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result = 1;
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}
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else if (lseek(fd, 0, SEEK_CUR) != 0)
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{
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printf("%d: lseek() returned different position\n", __LINE__);
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result = 1;
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}
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else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
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{
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printf("%d: fread() failed\n", __LINE__);
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result = 1;
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}
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else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
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{
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printf("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__);
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result = 1;
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}
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/* Now with fseeko. */
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if (fseeko(fp, -((int) sizeof(outstr) - 1), SEEK_CUR) != 0)
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{
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printf("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__);
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result = 1;
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}
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else if (fflush(fp) != 0)
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{
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printf("%d: fflush() failed\n", __LINE__);
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result = 1;
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}
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else if (lseek(fd, 0, SEEK_CUR) != 0)
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{
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printf("%d: lseek() returned different position\n", __LINE__);
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result = 1;
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}
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else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
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{
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printf("%d: fread() failed\n", __LINE__);
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result = 1;
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}
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else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
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{
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printf("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__);
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result = 1;
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}
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/* Go back to the beginning of the file: from the end. */
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if (fseek(fp, -((int) sizeof(outstr) - 1), SEEK_END) != 0)
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{
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printf("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__);
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result = 1;
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}
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else if (fflush(fp) != 0)
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{
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printf("%d: fflush() failed\n", __LINE__);
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result = 1;
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}
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else if (lseek(fd, 0, SEEK_CUR) != 0)
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{
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printf("%d: lseek() returned different position\n", __LINE__);
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result = 1;
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}
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else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
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{
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printf("%d: fread() failed\n", __LINE__);
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result = 1;
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}
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else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
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{
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printf("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__);
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result = 1;
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}
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/* Now with fseeko. */
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if (fseeko(fp, -((int) sizeof(outstr) - 1), SEEK_END) != 0)
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{
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printf("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__);
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result = 1;
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}
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else if (fflush(fp) != 0)
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{
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printf("%d: fflush() failed\n", __LINE__);
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result = 1;
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}
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else if (lseek(fd, 0, SEEK_CUR) != 0)
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{
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printf("%d: lseek() returned different position\n", __LINE__);
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result = 1;
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}
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else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1)
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{
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printf("%d: fread() failed\n", __LINE__);
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result = 1;
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}
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else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0)
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{
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printf("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__);
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result = 1;
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}
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if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
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{
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printf("%d: write error 2\n", __LINE__);
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result = 1;
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goto out;
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}
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if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
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{
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printf("%d: write error 3\n", __LINE__);
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result = 1;
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goto out;
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}
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if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
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{
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printf("%d: write error 4\n", __LINE__);
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result = 1;
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goto out;
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}
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if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1)
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{
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printf("%d: write error 5\n", __LINE__);
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result = 1;
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goto out;
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}
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if (fputc('1', fp) == EOF || fputc('2', fp) == EOF)
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{
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printf("%d: cannot add characters at the end\n", __LINE__);
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result = 1;
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goto out;
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}
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/* Check the access time. */
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if (fstat(fd, &st1) < 0)
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{
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printf("%d: fstat64() before fseeko() failed\n\n", __LINE__);
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result = 1;
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}
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else
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{
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sleep(1);
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if (fseek(fp, -(2 + 2 * (sizeof(outstr) - 1)), SEEK_CUR) != 0)
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{
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printf("%d: fseek() after write characters failed\n", __LINE__);
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result = 1;
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goto out;
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}
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else
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{
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time_t t;
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/* Make sure the timestamp actually can be different. */
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sleep(1);
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t = time(NULL);
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if (fstat(fd, &st2) < 0)
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{
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printf("%d: fstat64() after fseeko() failed\n\n", __LINE__);
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result = 1;
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}
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if (st1.st_ctime >= t)
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{
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printf("%d: st_ctime not updated\n", __LINE__);
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result = 1;
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}
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if (st1.st_mtime >= t)
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{
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printf("%d: st_mtime not updated\n", __LINE__);
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result = 1;
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}
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if (st1.st_ctime >= st2.st_ctime)
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{
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printf("%d: st_ctime not changed\n", __LINE__);
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result = 1;
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}
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if (st1.st_mtime >= st2.st_mtime)
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{
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printf("%d: st_mtime not changed\n", __LINE__);
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result = 1;
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}
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}
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}
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if (fread(buf, 1, 2 + 2 * (sizeof(outstr) - 1), fp) != 2 + 2
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* (sizeof(outstr) - 1))
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{
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printf("%d: reading 2 records plus bits failed\n", __LINE__);
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result = 1;
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}
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else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0 || memcmp(
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&buf[sizeof(outstr) - 1], outstr, sizeof(outstr) - 1) != 0 || buf[2
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* (sizeof(outstr) - 1)] != '1' || buf[2 * (sizeof(outstr) - 1) + 1]
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!= '2')
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{
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printf("%d: reading records failed\n", __LINE__);
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result = 1;
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}
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else if (ungetc('9', fp) == EOF)
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{
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printf("%d: ungetc() failed\n", __LINE__);
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result = 1;
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}
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else if (fseek(fp, -(2 + 2 * (sizeof(outstr) - 1)), SEEK_END) != 0)
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{
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printf("%d: fseek after ungetc failed\n", __LINE__);
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result = 1;
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}
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else if (fread(buf, 1, 2 + 2 * (sizeof(outstr) - 1), fp) != 2 + 2
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* (sizeof(outstr) - 1))
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{
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printf("%d: reading 2 records plus bits failed\n", __LINE__);
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result = 1;
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}
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else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0 || memcmp(
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&buf[sizeof(outstr) - 1], outstr, sizeof(outstr) - 1) != 0 || buf[2
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* (sizeof(outstr) - 1)] != '1')
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{
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printf("%d: reading records for the second time failed\n", __LINE__);
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result = 1;
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}
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else if (buf[2 * (sizeof(outstr) - 1) + 1] == '9')
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{
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printf("%d: unget character not ignored\n", __LINE__);
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result = 1;
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}
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else if (buf[2 * (sizeof(outstr) - 1) + 1] != '2')
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{
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printf("%d: unget somehow changed character\n", __LINE__);
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result = 1;
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}
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fclose(fp);
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fp = fopen(fname, "r");
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if (fp == NULL)
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{
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printf("%d: fopen() failed\n\n", __LINE__);
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result = 1;
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}
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else if (fstat(fileno(fp), &st1) < 0)
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{
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printf("%d: fstat64() before fseeko() failed\n\n", __LINE__);
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result = 1;
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}
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else if (fseeko(fp, 0, SEEK_END) != 0)
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{
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printf("%d: fseeko(fp, 0, SEEK_END) failed\n", __LINE__);
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result = 1;
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}
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else if (ftello(fp) != st1.st_size)
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{
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printf("%d: fstat64 st_size %zd ftello %zd\n", __LINE__,
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(size_t) st1.st_size, (size_t) ftello(fp));
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result = 1;
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}
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else
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printf("%d: SEEK_END works\n", __LINE__);
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if (fp != NULL)
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fclose(fp);
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fp = fopen(fname, "r");
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if (fp == NULL)
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{
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printf("%d: fopen() failed\n\n", __LINE__);
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result = 1;
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}
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else if (fstat(fileno(fp), &st1) < 0)
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{
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printf("%d: fstat64() before fgetc() failed\n\n", __LINE__);
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result = 1;
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}
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else if (fgetc(fp) == EOF)
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{
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printf("%d: fgetc() before fseeko() failed\n\n", __LINE__);
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result = 1;
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}
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else if (fseeko(fp, 0, SEEK_END) != 0)
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{
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printf("%d: fseeko(fp, 0, SEEK_END) failed\n", __LINE__);
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result = 1;
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}
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else if (ftello(fp) != st1.st_size)
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{
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printf("%d: fstat64 st_size %zd ftello %zd\n", __LINE__,
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(size_t) st1.st_size, (size_t) ftello(fp));
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result = 1;
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}
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else
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printf("%d: SEEK_END works\n", __LINE__);
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if (fp != NULL)
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fclose(fp);
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out: unlink(fname);
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return result;
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}
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FINSH_FUNCTION_EXPORT(libc_fseek, lseek test for libc);
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