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a84dcb4bdf
With fortification enabled, fread calls return result needs to be checked, has it gets the __wur macro enabled. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
99 lines
1.8 KiB
C
99 lines
1.8 KiB
C
#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <stdio.h>
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#include <support/xstdio.h>
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#define THE_COOKIE ((void *) 0xdeadbeeful)
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static int errors;
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static int cookieread_called;
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static ssize_t
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cookieread (void *cookie, char *buf, size_t count)
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{
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printf ("`%s' called with cookie %#lx\n", __FUNCTION__,
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(unsigned long int) cookie);
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if (cookie != THE_COOKIE)
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++errors;
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cookieread_called = 1;
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return 42;
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}
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static int cookiewrite_called;
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static ssize_t
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cookiewrite (void *cookie, const char *buf, size_t count)
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{
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printf ("`%s' called with cookie %#lx\n", __FUNCTION__,
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(unsigned long int) cookie);
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if (cookie != THE_COOKIE)
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++errors;
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cookiewrite_called = 1;
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return 43;
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}
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static int cookieseek_called;
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static int
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cookieseek (void *cookie, off64_t *offset, int whence)
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{
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printf ("`%s' called with cookie %#lx\n", __FUNCTION__,
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(unsigned long int) cookie);
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if (cookie != THE_COOKIE)
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++errors;
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cookieseek_called = 1;
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return 44;
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}
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static int cookieclose_called;
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static int
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cookieclose (void *cookie)
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{
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printf ("`%s' called with cookie %#lx\n", __FUNCTION__,
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(unsigned long int) cookie);
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if (cookie != THE_COOKIE)
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++errors;
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cookieclose_called = 1;
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return 45;
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}
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static int
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do_test (void)
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{
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cookie_io_functions_t fcts;
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char buf[1];
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FILE *f;
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fcts.read = cookieread;
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fcts.seek = cookieseek;
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fcts.close = cookieclose;
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fcts.write = cookiewrite;
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f = fopencookie (THE_COOKIE, "r+", fcts);
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xfread (buf, 1, 1, f);
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fwrite (buf, 1, 1, f);
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fseek (f, 0, SEEK_CUR);
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fclose (f);
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if (cookieread_called == 0
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|| cookiewrite_called == 0
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|| cookieseek_called == 0
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|| cookieclose_called == 0)
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++errors;
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return errors != 0;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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