invent and use a private xmp_strdup()

src/common.h

@@ -6,7 +6,6 @@
 #ifndef __cplusplus
 #define inline __inline
 #endif
-#define strdup _strdup
 #define strcasecmp _stricmp
 #define snprintf _snprintf
 #define kbhit _kbhit
@@ -77,6 +76,8 @@ int report(const char *, ...);
 
 void delay_ms(int msec);
 
+char *xmp_strdup(const char *);
+
 /* option */
 void get_options(int, char **, struct options *);
 int read_config(struct options *);

src/main.c

@@ -44,6 +44,15 @@ static struct sound_driver *sound;
 static unsigned int foreground_in, foreground_out;
 static int refresh_status;
 
+char *xmp_strdup(const char *in)
+{
+	size_t len = strlen(in) + 1;
+	char *out = (char *) malloc(len);
+	if (out) {
+		memcpy(out, in, len);
+	}
+	return out;
+}
 
 int report(const char *fmt, ...)
 {

src/read_config.c

@@ -164,7 +164,7 @@ int read_config(struct options *o)
 		 */
 		if (o->dparm < MAX_DRV_PARM) {
 			snprintf(cparm, 512, "%s=%s", var, val);
-			o->driver_parm[o->dparm++] = strdup(cparm);
+			o->driver_parm[o->dparm++] = xmp_strdup(cparm);
 		}
 	}
 

src/sound_file.c

@@ -49,7 +49,7 @@ static int init(struct options *options)
 						options->out_file);
 		sound_file.description = buf;
 	} else {
-		sound_file.description = strdup("stdout");
+		sound_file.description = xmp_strdup("stdout");
 	}
 
 	return 0;

src/sound_wav.c

@@ -76,7 +76,7 @@ static int init(struct options *options)
 						options->out_file);
 		sound_wav.description = buf;
 	} else {
-		sound_wav.description = strdup("WAV writer: stdout");
+		sound_wav.description = xmp_strdup("WAV writer: stdout");
 		len = -1;
 	}