Some popt improvements:

- Fixed a bug in short-opt parsing when an abutting arg has an '='.
- Allow a short-opt to be separated from its arg by an '='.
- Avoid an IBM-checker warning about an impossible case in a switch
  and a warning about a potential NULL-pointer dereference.
- Fixed a memory leak.

popt/popt.c

@@ -809,16 +809,20 @@ int poptGetNextOpt(poptContext con)
 		    *oe++ = '\0';
 		    /* XXX longArg is mapped back to persistent storage. */
 		    longArg = origOptString + (oe - localOptString);
-		}
+		} else
+		    oe = NULL;
 
 		opt = findOption(con->options, optString, '\0', &cb, &cbData,
 				 singleDash);
 		if (!opt && !singleDash)
 		    return POPT_ERROR_BADOPT;
+		if (!opt && oe)
+		    oe[-1] = '='; /* restore overwritten '=' */
 	    }
 
 	    if (!opt) {
 		con->os->nextCharArg = origOptString + 1;
+		longArg = NULL;
 	    } else {
 		if (con->os == con->optionStack &&
 		   opt->argInfo & POPT_ARGFLAG_STRIP)
@@ -856,7 +860,7 @@ int poptGetNextOpt(poptContext con)
 
 	    origOptString++;
 	    if (*origOptString != '\0')
-		con->os->nextCharArg = origOptString;
+		con->os->nextCharArg = origOptString + (*origOptString == '=');
 	}
 	/*@=branchstate@*/
 

popt/popthelp.c

@@ -121,7 +121,7 @@ getArgDescrip(const struct poptOption * opt,
     if (opt->argDescrip) return D_(translation_domain, opt->argDescrip);
 
     switch (opt->argInfo & POPT_ARG_MASK) {
-    case POPT_ARG_NONE:		return POPT_("NONE");
+    /*case POPT_ARG_NONE:	return POPT_("NONE");*/ /* impossible */
 #ifdef	DYING
     case POPT_ARG_VAL:		return POPT_("VAL");
 #else
@@ -767,6 +767,9 @@ static int showShortOptions(const struct poptOption * opt, FILE * fp,
     char * s = (str != NULL ? str : memset(alloca(300), 0, 300));
     int len = 0;
 
+    if (s == NULL)
+	return 0;
+
 /*@-boundswrite@*/
     if (opt != NULL)
     for (; (opt->longName || opt->shortName || opt->arg); opt++) {

popt/poptparse.c

@@ -163,8 +163,10 @@ int poptConfigFileToString(FILE *fp, char ** argstrp, /*@unused@*/ UNUSED(int fl
 	    p++;
 
 	linelen = strlen(p);
-	if (linelen >= maxlinelen-1)
+	if (linelen >= maxlinelen-1) {
+	    free(argstr);
 	    return POPT_ERROR_OVERFLOW;	/* XXX line too long */
+	}
 
 	if (*p == '\0' || *p == '\n') continue;	/* line is empty */
 	if (*p == '#') continue;		/* comment line */