poptParseArgvString cleanups...

	x
       Added array grow increment constant.
       Remove unnecessary 'dst' init.
       Remove unnecessary strcpy().
       Make arg 's' and var 'src' const-correct.

svn path=/trunk/; revision=543

3 files changed, 21 insertions, 11 deletions

diff --git a/support/ChangeLog b/support/ChangeLog
index bf06924..bd1b2ee 100644
--- a/support/ChangeLog
+++ b/support/ChangeLog
@@ -1,3 +1,11 @@
+1998-12-24  Jeff Garzik  <jgarzik@pobox.com>
+
+	* poptparse.[ch]:  poptParseArgvString cleanups...
+	Added array grow increment constant.
+	Remove unnecessary 'dst' init.
+	Remove unnecessary strcpy().
+	Make arg 's' and var 'src' const-correct.
+
 1998-12-21  Matt Wilson  <msw@redhat.com>
 
 	* poptparse.c: fix pointer assignment
diff --git a/support/popt-gnome.h b/support/popt-gnome.h
index 069cab1..6dc2765 100644
--- a/support/popt-gnome.h
+++ b/support/popt-gnome.h
@@ -104,7 +104,7 @@ int poptReadConfigFile(poptContext con, char * fn);
 int poptReadDefaultConfig(poptContext con, int useEnv);
 /* argv should be freed -- this allows ', ", and \ quoting, but ' is treated
    the same as " and both may include \ quotes */
-int poptParseArgvString(char * s, int * argcPtr, char *** argvPtr);
+int poptParseArgvString(const char * s, int * argcPtr, char *** argvPtr);
 const char * poptStrerror(const int error);
 void poptSetExecPath(poptContext con, const char * path, int allowAbsolute);
 void poptPrintHelp(poptContext con, FILE * f, int flags);
diff --git a/support/poptparse.c b/support/poptparse.c
index 2e9bc73..b4e1434 100644
--- a/support/poptparse.c
+++ b/support/poptparse.c
@@ -15,23 +15,25 @@
 
 #include "popt-gnome.h"
 
-int poptParseArgvString(char * s, int * argcPtr, char *** argvPtr) {
-    char * buf = strcpy(alloca(strlen(s) + 1), s);
-    char * bufStart = buf;
-    char * src, * dst;
+static const int poptArgvArrayGrowDelta = 5;
+
+int poptParseArgvString(const char * s, int * argcPtr, char *** argvPtr) {
+    char * buf, * bufStart, * dst;
+    const char * src;
     char quote = '\0';
-    int argvAlloced = 5;
+    int argvAlloced = poptArgvArrayGrowDelta;
     char ** argv = malloc(sizeof(*argv) * argvAlloced);
     char ** argv2;
     int argc = 0;
-    int i;
+    int i, buflen;
+
+    buflen = strlen(s) + 1;
+    bufStart = buf = alloca(buflen);
+    memset(buf, '\0', buflen);
 
     src = s;
-    dst = buf;
     argv[argc] = buf;
 
-    memset(buf, '\0', strlen(s) + 1);
-
     while (*src) {
 	if (quote == *src) {
 	    quote = '\0';
@@ -49,7 +51,7 @@ int poptParseArgvString(char * s, int * argcPtr, char *** argvPtr) {
 	    if (*argv[argc]) {
 		buf++, argc++;
 		if (argc == argvAlloced) {
-		    argvAlloced += 5;
+		    argvAlloced += poptArgvArrayGrowDelta;
 		    argv = realloc(argv, sizeof(*argv) * argvAlloced);
 		}
 		argv[argc] = buf;