X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?p=sim%2Fe2-interface.git;a=blobdiff_plain;f=e2sim%2Fasn1c%2Fasn_internal.c;fp=e2sim%2Fasn1c%2Fasn_internal.c;h=c2a8108e79e9a6b232462f47ab85c2402016a1d1;hp=0000000000000000000000000000000000000000;hb=f5900596513e4359fc839ba361da085674e90b68;hpb=215d350dbe06a4c7ee370815f26128a7f7e160cb

diff --git a/e2sim/asn1c/asn_internal.c b/e2sim/asn1c/asn_internal.c
new file mode 100644
index 0000000..c2a8108
--- /dev/null
+++ b/e2sim/asn1c/asn_internal.c
@@ -0,0 +1,48 @@
+#include <asn_internal.h>
+
+ssize_t
+asn__format_to_callback(int (*cb)(const void *, size_t, void *key), void *key,
+                        const char *fmt, ...) {
+    char scratch[64];
+    char *buf = scratch;
+    size_t buf_size = sizeof(scratch);
+    int wrote;
+    int cb_ret;
+
+    do {
+        va_list args;
+        va_start(args, fmt);
+
+        wrote = vsnprintf(buf, buf_size, fmt, args);
+        va_end(args);
+        if(wrote < (ssize_t)buf_size) {
+            if(wrote < 0) {
+                if(buf != scratch) FREEMEM(buf);
+                return -1;
+            }
+            break;
+        }
+
+        buf_size <<= 1;
+        if(buf == scratch) {
+            buf = MALLOC(buf_size);
+            if(!buf) return -1;
+        } else {
+            void *p = REALLOC(buf, buf_size);
+            if(!p) {
+                FREEMEM(buf);
+                return -1;
+            }
+            buf = p;
+        }
+    } while(1);
+
+    cb_ret = cb(buf, wrote, key);
+    if(buf != scratch) FREEMEM(buf);
+    if(cb_ret < 0) {
+        return -1;
+    }
+
+    return wrote;
+}
+