[PATCH 08/10] print.c: Fix multiline support.

[Stefan Tauner]

- Use the reentrant tokenizer version strtok_r to break up vendor and model
   names in print.c
 - Add implementation of strtok_r for mingw (posix only)
 - Free allocated temporary memory again.

Signed-off-by: Stefan Tauner 
---
 print.c | 49 ++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 36 insertions(+), 13 deletions(-)

diff --git a/print.c b/print.c
index 6ca2a57..b163cbf 100644
--- a/print.c
+++ b/print.c
@@ -25,6 +25,26 @@
 #include "flash.h"
 #include "programmer.h"

+#ifdef __MINGW32__
+static char* strtok_r(char *str, const char *delim, char **nextp)
+{
+	if (str == NULL)
+		str = *nextp;
+
+	str += strspn(str, delim); /* Skip leading delimiters */
+	if (*str == '\0')
+		return NULL;
+
+	char *ret = str;
+	str += strcspn(str, delim); /* Find end of token */
+	if (*str != '\0')
+		*str++ = '\0';
+
+	*nextp = str;
+	return ret;
+}
+#endif
+
 /*
  * Return a string corresponding to the bustype parameter.
  * Memory is obtained with malloc() and must be freed with free() by the caller.
@@ -69,7 +89,8 @@ static int print_supported_chips(void)
    int maxtypelen = strlen("Type") + 1;
    const struct flashchip *chip;
    char *s;
-	char *tmpven, *tmpdev;
+	char *ven, *dev;
+	char *tmpven, *tmpdev, *tmpven_save, *tmpdev_save;
    int tmpvenlen, tmpdevlen, curvenlen, curdevlen;

/* calculate maximum column widths and by iterating over all chips */
@@ -179,17 +200,17 @@ static int print_supported_chips(void)
    	 * - after all other values are printed print the surplus tokens
    	 *   on fresh lines
    	 */
-		tmpven = malloc(strlen(chip->vendor) + 1);
-		if (tmpven == NULL) {
+		ven = malloc(strlen(chip->vendor) + 1);
+		if (ven == NULL) {
    		msg_gerr("Out of memory!\n");
    		return 1;
    	}
-		strcpy(tmpven, chip->vendor);
+		strcpy(ven, chip->vendor);

-		tmpven = strtok(tmpven, delim);
+		tmpven = strtok_r(ven, delim, &tmpven_save);
    	msg_ginfo("%s", tmpven);
    	curvenlen = strlen(tmpven);
-		while ((tmpven = strtok(NULL, delim)) != NULL) {
+		while ((tmpven = strtok_r(NULL, delim, &tmpven_save)) != NULL) {
    		msg_ginfo("%s", delim);
    		curvenlen++;
    		tmpvenlen = strlen(tmpven);
@@ -203,17 +224,17 @@ static int print_supported_chips(void)
    		msg_ginfo(" ");

/* support for multiline device names as above */
-		tmpdev = malloc(strlen(chip->name) + 1);
-		if (tmpdev == NULL) {
+		dev = malloc(strlen(chip->name) + 1);
+		if (dev == NULL) {
    		msg_gerr("Out of memory!\n");
    		return 1;
    	}
-		strcpy(tmpdev, chip->name);
+		strcpy(dev, chip->name);

-		tmpdev = strtok(tmpdev, delim);
+		tmpdev = strtok_r(dev, delim, &tmpdev_save);
    	msg_ginfo("%s", tmpdev);
    	curdevlen = strlen(tmpdev);
-		while ((tmpdev = strtok(NULL, delim)) != NULL) {
+		while ((tmpdev = strtok_r(NULL, delim, &tmpdev_save)) != NULL) {
    		msg_ginfo("%s", delim);
    		curdevlen++;
    		tmpdevlen = strlen(tmpdev);
@@ -287,7 +308,7 @@ static int print_supported_chips(void)
    		if (tmpven != NULL){
    			msg_ginfo("%s", tmpven);
    			curvenlen = strlen(tmpven);
-				while ((tmpven = strtok(NULL, delim)) != NULL) {
+				while ((tmpven = strtok_r(NULL, delim, &tmpven_save)) != NULL) {
    				msg_ginfo("%s", delim);
    				curvenlen++;
    				tmpvenlen = strlen(tmpven);
@@ -306,7 +327,7 @@ static int print_supported_chips(void)
    		if (tmpdev != NULL){
    			msg_ginfo("%s", tmpdev);
    			curdevlen = strlen(tmpdev);
-				while ((tmpdev = strtok(NULL, delim)) != NULL) {
+				while ((tmpdev = strtok_r(NULL, delim, &tmpdev_save)) != NULL) {
    				msg_ginfo("%s", delim);
    				curdevlen++;
    				tmpdevlen = strlen(tmpdev);
@@ -319,6 +340,8 @@ static int print_supported_chips(void)
    		}
    	}
    	msg_ginfo("\n");
+		free(ven);
+		free(dev);
    }

return 0;