add --args (#11)

* add --args

allows gathering of arguments to be sent to the nro and avoid attempted parsing by nxlink. This allows arguments starting with - and -- to be passed to the nro without getopt complaining.

src/nxlink.c

@@ -433,11 +433,58 @@ void showHelp() {
 	puts("--address, -a   Hostname or IPv4 address of Switch");
 	puts("--retries, -r   number of times to ping before giving up");
 	puts("--path   , -p   set upload path for file");
+	puts("--args          args to send to nro");
 	puts("--server , -s   start server after completed upload");
 	puts("\n");
 }
 
 
+//---------------------------------------------------------------------------------
+int add_extra_args(int len, char *buf, char *extra_args) {
+//---------------------------------------------------------------------------------
+
+	if (NULL==extra_args) return len;
+
+
+	int extra_len = strlen(extra_args);
+
+	char *dst = &buf[len];
+	char *src = extra_args;
+
+	do {
+		int c;
+
+		do {
+			c = *src++;
+			extra_len--;
+		} while(c ==' ' && extra_len >= 0);
+
+		if (c == '\"' || c == '\'') {
+			int quote = c;
+			do {
+				c = *src++;
+				if (c != quote) *dst++ = c;
+				extra_len--;
+			} while(c != quote && extra_len >= 0);
+
+			*dst++ = '\0';
+
+			continue;
+		}
+		do {
+			*dst++ = c;
+			extra_len--;
+			c = *src++;
+		} while(c != ' ' && extra_len >= 0);
+
+		*dst++ = '\0';
+	} while(extra_len >= 0);
+
+	return dst - buf;
+}
+
+#define NRO_ARGS	1000
+
 //---------------------------------------------------------------------------------
 int main(int argc, char **argv) {
 //---------------------------------------------------------------------------------
@@ -445,6 +492,7 @@ int main(int argc, char **argv) {
 	char *basepath = NULL;
 	char *finalpath = NULL;
 	char *endarg = NULL;
+	char *extra_args = NULL;
 	int retries = 10;
 	static int server = 0;
 
@@ -458,6 +506,7 @@ int main(int argc, char **argv) {
 			{"address", required_argument, 0,	'a'},
 			{"retries", required_argument, 0,	'r'},
 			{"path",    required_argument, 0,	'p'},
+			{"args",    required_argument, 0,  NRO_ARGS},
 			{"help",    no_argument,       0,	'h'},
 			{"server",  no_argument,       &server,  1 },
 			{0, 0, 0, 0}
@@ -495,6 +544,9 @@ int main(int argc, char **argv) {
 		case 'h':
 			showHelp();
 			break;
+		case NRO_ARGS:
+			extra_args=optarg;
+			break;
 		}
 
 	}
@@ -552,6 +604,8 @@ int main(int argc, char **argv) {
 		cmdlen+= len + 1;
 	}
 
+	cmdlen = add_extra_args(cmdlen, &cmdbuf[4], extra_args);
+
 	cmdbuf[0] = cmdlen & 0xff;
 	cmdbuf[1] = (cmdlen>>8) & 0xff;
 	cmdbuf[2] = (cmdlen>>16) & 0xff;