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sysrand: fix syscall signature [backport] (#19982)

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sysrand: fix syscall signature

`syscall` is a `C` varags function
This commit is contained in:
Jacek Sieka 2022-07-07 15:26:58 +02:00 • committed by GitHub
commit ad0aee5354
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1 changed files with 3 additions and 4 deletions
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7
lib/std/sysrand.nim
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@ -170,9 +170,8 @@ elif defined(linux) and not defined(nimNoGetRandom) and not defined(emscripten):
const syscallHeader = """#include <unistd.h> const syscallHeader = """#include <unistd.h>
#include <sys/syscall.h>""" #include <sys/syscall.h>"""
proc syscall( proc syscall(n: clong): clong {.
n: clong, buf: pointer, bufLen: cint, flags: cuint importc: "syscall", varargs, header: syscallHeader.}
): clong {.importc: "syscall", header: syscallHeader.}
# When reading from the urandom source (GRND_RANDOM is not set), # When reading from the urandom source (GRND_RANDOM is not set),
# getrandom() will block until the entropy pool has been # getrandom() will block until the entropy pool has been
# initialized (unless the GRND_NONBLOCK flag was specified). If a # initialized (unless the GRND_NONBLOCK flag was specified). If a
@ -211,7 +210,7 @@ elif defined(zephyr):
proc sys_csrand_get(dst: pointer, length: csize_t): cint {.importc: "sys_csrand_get", header: "<random/rand32.h>".} proc sys_csrand_get(dst: pointer, length: csize_t): cint {.importc: "sys_csrand_get", header: "<random/rand32.h>".}
# Fill the destination buffer with cryptographically secure # Fill the destination buffer with cryptographically secure
# random data values # random data values
# #
proc getRandomImpl(p: pointer, size: int): int {.inline.} = proc getRandomImpl(p: pointer, size: int): int {.inline.} =
# 0 if success, -EIO if entropy reseed error # 0 if success, -EIO if entropy reseed error