isspace must be used only on *unsigned* chars

diff --git a/crypto/ocsp/ocsp_ht.c b/crypto/ocsp/ocsp_ht.c
index a0fd825dbf3c9406479aedda87b236d0d3e6d1e0..b78cd3709215d2e0c36b8227552de6371f5addf3 100644 (file)
--- a/crypto/ocsp/ocsp_ht.c
+++ b/crypto/ocsp/ocsp_ht.c
@@ -111,19 +111,19 @@ Content-Length: %d\r\n\r\n";
         */
 
        /* Skip to first white space (passed protocol info) */
-       for(p = tmpbuf; *p && !isspace(*p); p++) continue;
+       for(p = tmpbuf; *p && !isspace((unsigned char)*p); p++) continue;
        if(!*p) {
                OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
                goto err;
        }
        /* Skip past white space to start of response code */
-       while(*p && isspace(*p)) p++;
+       while(*p && isspace((unsigned char)*p)) p++;
        if(!*p) {
                OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
                goto err;
        }
        /* Find end of response code: first whitespace after start of code */
-       for(q = p; *q && !isspace(*q); q++) continue;
+       for(q = p; *q && !isspace((unsigned char)*q); q++) continue;
        if(!*q) {
                OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
                goto err;
@@ -134,11 +134,11 @@ Content-Length: %d\r\n\r\n";
        retcode = strtoul(p, &r, 10);
        if(*r) goto err;
        /* Skip over any leading white space in message */
-       while(*q && isspace(*q))  q++;
+       while(*q && isspace((unsigned char)*q))  q++;
        if(!*q) goto err;
        /* Finally zap any trailing white space in message (include CRLF) */
        /* We know q has a non white space character so this is OK */
-       for(r = q + strlen(q) - 1; isspace(*r); r--) *r = 0;
+       for(r = q + strlen(q) - 1; isspace((unsigned char)*r); r--) *r = 0;
        if(retcode != 200) {
                OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_RESPONSE_ERROR);
                ERR_add_error_data(4, "Code=", p, ",Reason=", q);
@@ -147,7 +147,7 @@ Content-Length: %d\r\n\r\n";
        /* Find blank line marking beginning of content */      
        while(BIO_gets(mem, tmpbuf, 512) > 0)
        {
-               for(p = tmpbuf; *p && isspace(*p); p++) continue;
+               for(p = tmpbuf; *p && isspace((unsigned char)*p); p++) continue;
                if(!*p) break;
        }
        if(*p) {