34c5e4a1f1
* stdio-common/tst-put-error.c: New file. * libio/fileops.c (_IO_new_file_xsputn): If overflow fails and no more data would have to be written signal error. * libio/oldfileops.c (_IO_old_file_xsputn): Likewise. * libio/fileops.c (_IO_new_file_overflow): Use NULL not 0.
34 lines
784 B
C
34 lines
784 B
C
#include <errno.h>
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#include <error.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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static int
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do_test (void)
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{
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char tmpl[] = "/tmp/tst-put-error.XXXXXX";
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int fd = mkstemp (tmpl);
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if (fd == -1)
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error (EXIT_FAILURE, errno, "cannot create temporary file");
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FILE *fp = fdopen (fd, "w");
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if (fp == NULL)
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error (EXIT_FAILURE, errno, "fdopen");
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setlinebuf (fp);
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close (fd);
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unlink ("aaa");
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int n = fprintf (fp, "hello world\n");
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printf ("fprintf = %d\n", n);
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if (n >= 0)
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error (EXIT_FAILURE, 0, "first fprintf succeeded");
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n = fprintf (fp, "hello world\n");
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printf ("fprintf = %d\n", n);
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if (n >= 0)
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error (EXIT_FAILURE, 0, "second fprintf succeeded");
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return 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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