Replace equal/not equal uses of str[n]cmp() with rstreq[n] in header code

lib/formats.c

@@ -621,7 +621,7 @@ void *rpmHeaderFormatFuncByName(const char *fmt)
     void *func = NULL;
 
     for (ext = rpmHeaderFormats; ext->name != NULL; ext++) {
-	if (!strcmp(ext->name, fmt)) {
+	if (rstreq(ext->name, fmt)) {
 	    func = ext->func;
 	    break;
 	}

lib/header.c

@@ -1231,25 +1231,25 @@ static int headerMatchLocale(const char *td, const char *l, const char *le)
     const char *fe;
 
     /* First try a complete match. */
-    if (strlen(td) == (le-l) && !strncmp(td, l, (le - l)))
+    if (strlen(td) == (le-l) && rstreqn(td, l, (le - l)))
 	return 1;
 
     /* Next, try stripping optional dialect and matching.  */
     for (fe = l; fe < le && *fe != '@'; fe++)
 	{};
-    if (fe < le && !strncmp(td, l, (fe - l)))
+    if (fe < le && rstreqn(td, l, (fe - l)))
 	return 1;
 
     /* Next, try stripping optional codeset and matching.  */
     for (fe = l; fe < le && *fe != '.'; fe++)
 	{};
-    if (fe < le && !strncmp(td, l, (fe - l)))
+    if (fe < le && rstreqn(td, l, (fe - l)))
 	return 1;
 
     /* Finally, try stripping optional country code and matching. */
     for (fe = l; fe < le && *fe != '_'; fe++)
 	{};
-    if (fe < le && !strncmp(td, l, (fe - l)))
+    if (fe < le && rstreqn(td, l, (fe - l)))
 	return 2;
 
     return 0;
@@ -1664,7 +1664,7 @@ int headerAddI18NString(Header h, rpmTag tag, const char * string,
 
     {	const char * l = table->data;
 	for (langNum = 0; langNum < table->info.count; langNum++) {
-	    if (!strcmp(l, lang)) break;
+	    if (rstreq(l, lang)) break;
 	    l += strlen(l) + 1;
 	}
     }

lib/headerfmt.c

@@ -235,12 +235,12 @@ static int findTag(headerSprintfArgs hsa, sprintfToken token, const char * name)
     stag->fmt = NULL;
     stag->tag = -1;
 
-    if (!strcmp(tagname, "*")) {
+    if (rstreq(tagname, "*")) {
 	stag->tag = -2;
 	goto bingo;
     }
 
-    if (strncmp("RPMTAG_", tagname, sizeof("RPMTAG_")-1) == 0) {
+    if (rstreqn("RPMTAG_", tagname, sizeof("RPMTAG_")-1)) {
 	tagname += sizeof("RPMTAG");
     }
 
@@ -760,7 +760,7 @@ static char * singleSprintf(headerSprintfArgs hsa, sprintfToken token,
 
 	    spft = token->u.array.format;
 	    isxml = (spft->type == PTOK_TAG && spft->u.tag.type != NULL &&
-		!strcmp(spft->u.tag.type, "xml"));
+		    rstreq(spft->u.tag.type, "xml"));
 
 	    if (isxml) {
 		const char * tagN = rpmTagGetName(spft->u.tag.tag);
@@ -853,7 +853,7 @@ char * headerFormat(Header h, const char * fmt, errmsg_t * errmsg)
 	(hsa.format->type == PTOK_ARRAY
 	    ? &hsa.format->u.array.format->u.tag :
 	NULL));
-    isxml = (tag != NULL && tag->tag == -2 && tag->type != NULL && !strcmp(tag->type, "xml"));
+    isxml = (tag != NULL && tag->tag == -2 && tag->type != NULL && rstreq(tag->type, "xml"));
 
     if (isxml) {
 	need = sizeof("<rpmHeader>\n") - 1;

lib/package.c

@@ -790,11 +790,11 @@ rpmRC headerCheckPayloadFormat(Header h) {
     if (!payloadfmt)
 	return RPMRC_OK;
 
-    if (payloadfmt && strncmp(payloadfmt, "cpio", strlen("cpio")) == 0) {
+    if (payloadfmt && rstreq(payloadfmt, "cpio")) {
 	rc = RPMRC_OK;
     } else {
         char *nevra = headerGetNEVRA(h, NULL);
-        if (payloadfmt && strncmp(payloadfmt, "drpm", strlen("drpm")) == 0) {
+        if (payloadfmt && rstreq(payloadfmt, "drpm")) {
             rpmlog(RPMLOG_ERR,
                      _("%s is a Delta RPM and cannot be directly installed\n"),
                      nevra);

lib/signature.c

@@ -781,7 +781,7 @@ verifySHA1Digest(rpmtd sigtd, DIGEST_CTX sha1ctx, char **msg)
 
     (void) rpmDigestFinal(ctx, (void **)&SHA1, NULL, 1);
 
-    if (SHA1 == NULL || strlen(SHA1) != strlen(sig) || strcmp(SHA1, sig)) {
+    if (SHA1 == NULL || strlen(SHA1) != strlen(sig) || !rstreq(SHA1, sig)) {
 	rasprintf(msg, "%s %s Expected(%s) != (%s)\n", title,
 		  rpmSigString(res), sig, SHA1 ? SHA1 : "(nil)");
     } else {