9e3c259fae
./lib/fileutils.c:9:5: warning: no previous declaration for 'close_stream' [-Wmissing-declarations] ./lib/fileutils.c:23:6: warning: no previous declaration for 'close_stdout' [-Wmissing-declarations] Signed-off-by: Sami Kerola <kerolasa@iki.fi>
45 lines
908 B
C
45 lines
908 B
C
#include <errno.h>
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#include <error.h>
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#include <stdio_ext.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "nls.h"
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#include "fileutils.h"
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int close_stream(FILE * stream)
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{
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const int some_pending = (__fpending(stream) != 0);
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const int prev_fail = (ferror(stream) != 0);
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const int fclose_fail = (fclose(stream) != 0);
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if (prev_fail || (fclose_fail && (some_pending || errno != EBADF))) {
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if (!fclose_fail)
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errno = 0;
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return EOF;
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}
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return 0;
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}
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/* Use atexit(); */
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void close_stdout(void)
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{
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if (close_stream(stdout) != 0 && !(errno == EPIPE)) {
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char const *write_error = _("write error");
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error(0, errno, "%s", write_error);
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_exit(EXIT_FAILURE);
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}
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if (close_stream(stderr) != 0)
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_exit(EXIT_FAILURE);
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}
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#ifdef TEST_PROGRAM
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#include <stdio.h>
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int main(int argc, char *argv[])
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{
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atexit(close_stdout);
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printf("Hello, World!\n");
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return EXIT_SUCCESS;
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}
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#endif /* TEST_PROGRAM */
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