diff options
Diffstat (limited to 'lib/system/sysio.nim')
| -rw-r--r-- | lib/system/sysio.nim | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/system/sysio.nim b/lib/system/sysio.nim index d0bba6775..3c34215ac 100644 --- a/lib/system/sysio.nim +++ b/lib/system/sysio.nim @@ -58,6 +58,8 @@ proc readBytes(f: File, a: var openArray[int8|uint8], start, len: Natural): int result = readBuffer(f, addr(a[start]), len) proc readChars(f: File, a: var openArray[char], start, len: Natural): int = + if (start + len) > len(a): + raiseEIO("buffer overflow: (start+len) > length of openarray buffer") result = readBuffer(f, addr(a[start]), len) proc write(f: File, c: cstring) = fputs(c, f) |