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30 lines
746 B
30 lines
746 B
// RUN: %clangxx_msan -O0 -g %s -o %t && %run %t
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// RUN: %clangxx_msan -O3 -g %s -o %t && %run %t
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#include <assert.h>
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#include <fcntl.h>
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#include <sound/asound.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <unistd.h>
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#include <sanitizer/msan_interface.h>
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int main(int argc, char **argv) {
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int fd = open("/dev/snd/controlC0", O_RDONLY);
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if (fd < 0) {
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printf("Unable to open sound device.");
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return 0;
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}
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const unsigned sz = sizeof(snd_ctl_card_info);
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void *info = malloc(sz + 1);
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assert(__msan_test_shadow(info, sz) == 0);
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assert(ioctl(fd, SNDRV_CTL_IOCTL_CARD_INFO, info) >= 0);
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assert(__msan_test_shadow(info, sz + 1) == sz);
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close(fd);
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free(info);
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return 0;
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}
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