diff options
Diffstat (limited to 'sim/testsuite/cris/c/ftruncate1.c')
-rw-r--r-- | sim/testsuite/cris/c/ftruncate1.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/sim/testsuite/cris/c/ftruncate1.c b/sim/testsuite/cris/c/ftruncate1.c new file mode 100644 index 00000000000..46b8756705c --- /dev/null +++ b/sim/testsuite/cris/c/ftruncate1.c @@ -0,0 +1,52 @@ +/* Check that the ftruncate syscall works trivially. +#notarget: cris*-*-elf +*/ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> + +void +perr (const char *s) +{ + perror (s); + exit (1); +} + +int +main (void) +{ + FILE *f; + const char fname[] = "sk1test.dat"; + const char tsttxt1[] + = "This is the first and only line of this file.\n"; + const char tsttxt2[] = "Now there is a second line.\n"; + char buf[sizeof (tsttxt1) + sizeof (tsttxt2) - 1] = ""; + + f = fopen (fname, "w+"); + if (f == NULL + || fwrite (tsttxt1, 1, strlen (tsttxt1), f) != strlen (tsttxt1)) + perr ("open or fwrite"); + + if (fflush (f) != 0) + perr ("fflush"); + + if (ftruncate (fileno (f), strlen(tsttxt1) - 20) != 0) + perr ("ftruncate"); + + if (fclose (f) != 0) + perr ("fclose"); + + f = fopen (fname, "r"); + if (f == NULL + || fread (buf, 1, sizeof (buf), f) != strlen (tsttxt1) - 20 + || strncmp (buf, tsttxt1, strlen (tsttxt1) - 20) != 0 + || fclose (f) != 0) + { + printf ("fail\n"); + exit (1); + } + + printf ("pass\n"); + exit (0); +} |