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30 lines
716 B
C
Vendored
30 lines
716 B
C
Vendored
#include <errno.h>
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#include <unistd.h>
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#ifdef __wasilibc_use_wasip2
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#include <wasi/wasip2.h>
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#include <sysexits.h>
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int __wasilibc_random(void *buffer, size_t len) {
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// Set up a WASI byte list to receive the results
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wasip2_list_u8_t wasi_list;
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// Get random bytes
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random_get_random_bytes(len, &wasi_list);
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// The spec for get-random-bytes specifies that wasi_list.len
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// will be equal to len.
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if (wasi_list.len != len)
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_Exit(EX_OSERR);
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else {
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// Copy the result
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memcpy(buffer, wasi_list.ptr, len);
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}
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// Free the WASI byte list
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wasip2_list_u8_free(&wasi_list);
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return 0;
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}
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#endif
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