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Do not read past end of input. Ensure NUL termination.

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This commit is contained in:
Charles Blake 2015-07-26 09:02:43 -04:00
commit 18df5dad11
1 changed files with 2 additions and 1 deletions
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lib/system/sysstr.nim
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@ -82,7 +82,8 @@ proc copyStr(s: NimString, start: int): NimString {.compilerProc.} =
proc toNimStr(str: cstring, len: int): NimString {.compilerProc.} = proc toNimStr(str: cstring, len: int): NimString {.compilerProc.} =
result = rawNewStringNoInit(len) result = rawNewStringNoInit(len)
result.len = len result.len = len
c_memcpy(result.data, str, len + 1) c_memcpy(result.data, str, len)
result[result.len] = '\0'
proc cstrToNimstr(str: cstring): NimString {.compilerRtl.} = proc cstrToNimstr(str: cstring): NimString {.compilerRtl.} =
result = toNimStr(str, c_strlen(str)) result = toNimStr(str, c_strlen(str))