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| author | Steven Murdoch <Steven.Murdoch@cl.cam.ac.uk> | 2011-08-29 00:36:41 +0100 |
|---|---|---|
| committer | Steven Murdoch <Steven.Murdoch@cl.cam.ac.uk> | 2011-08-29 00:36:41 +0100 |
| commit | 93792b5aa6806646674795504419f3e97862685c (patch) | |
| tree | 58b3fd7056856cd15776dc5e345a7e52c2f41f88 | |
| parent | f1ff65dfad800ed89e5b01c1c5b4b77c10a438b8 (diff) | |
| download | tor-93792b5aa6806646674795504419f3e97862685c.tar tor-93792b5aa6806646674795504419f3e97862685c.tar.gz | |
Add a sanity check
| -rw-r--r-- | src/common/util.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/common/util.c b/src/common/util.c index 371e09b8d..dd2d1110e 100644 --- a/src/common/util.c +++ b/src/common/util.c @@ -3462,10 +3462,11 @@ tor_read_all_handle(HANDLE h, char *buf, size_t count, HANDLE hProcess) continue; } + /* There is data to read; read it */ retval = ReadFile(h, buf+numread, count-numread, &byte_count, NULL); + tor_assert(byte_count + numread <= count); if (!retval) { - log_warn(LD_GENERAL, - "Failed to read from handle: %s", + log_warn(LD_GENERAL, "Failed to read from handle: %s", format_win32_error(GetLastError())); return -1; } else if (0 == byte_count) { |