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strerror: don't bit shift a signed integer

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Bug: https://github.com/curl/curl/issues/744
Reported-by: Alexis La Goutte
This commit is contained in:
Jay Satiro 2016-03-31 21:05:29 -04:00
parent 213d3c7b0c
commit 7c314fd9f8
1 changed files with 3 additions and 4 deletions
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7
lib/strerror.c
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@ -1076,14 +1076,13 @@ const char *Curl_sspi_strerror (struct connectdata *conn, int err)
strncpy(outbuf, txt, outmax);
else if(err == SEC_E_ILLEGAL_MESSAGE)
snprintf(outbuf, outmax,
"SEC_E_ILLEGAL_MESSAGE (0x%04X%04X) - This error usually occurs "
"SEC_E_ILLEGAL_MESSAGE (0x%08X) - This error usually occurs "
"when a fatal SSL/TLS alert is received (e.g. handshake failed). "
"More detail may be available in the Windows System event log.",
(err >> 16) & 0xffff, err & 0xffff);
err);
else {
str = txtbuf;
snprintf(txtbuf, sizeof(txtbuf), "%s (0x%04X%04X)",
txt, (err >> 16) & 0xffff, err & 0xffff);
snprintf(txtbuf, sizeof(txtbuf), "%s (0x%08X)", txt, err);
txtbuf[sizeof(txtbuf)-1] = '\0';
#ifdef _WIN32_WCE