common: Share idevicebackup helper string_build_path() from utils

1 files changed, 29 insertions, 0 deletions

diff --git a/common/utils.c b/common/utils.c
index 4465490..fb6822f 100644
--- a/common/utils.c
+++ b/common/utils.c
@@ -29,6 +29,7 @@
 #include <time.h>
 #include <sys/time.h>
 #include <inttypes.h>
+#include <ctype.h>
 
 #include "utils.h"
 
@@ -110,6 +111,34 @@ char *string_concat(const char *str, ...)
         return result;
 }
 
+char *string_build_path(const char *elem, ...)
+{
+        if (!elem)
+                return NULL;
+        va_list args;
+        int len = strlen(elem)+1;
+        va_start(args, elem);
+        char *arg = va_arg(args, char*);
+        while (arg) {
+                len += strlen(arg)+1;
+                arg = va_arg(args, char*);
+        }
+        va_end(args);
+
+        char* out = (char*)malloc(len);
+        strcpy(out, elem);
+
+        va_start(args, elem);
+        arg = va_arg(args, char*);
+        while (arg) {
+                strcat(out, "/");
+                strcat(out, arg);
+                arg = va_arg(args, char*);
+        }
+        va_end(args);
+        return out;
+}
+
 static int get_rand(int min, int max)
 {
         int retval = (rand() % (max - min)) + min;