From 678a44228fe0c5b24b2d1b96576da0e44211c364 Mon Sep 17 00:00:00 2001
From: Kevin Jerebica <jerebicakevin@gmail.com>
Date: Sun, 8 Sep 2024 21:41:17 +0200
Subject: [PATCH] feat: store parsed results fully in heap

---
 parslib.c | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++-----
 parslib.h |  2 ++
 test.c    |  4 ++++
 3 files changed, 65 insertions(+), 5 deletions(-)

diff --git a/parslib.c b/parslib.c
index a714406..dc3cb59 100644
--- a/parslib.c
+++ b/parslib.c
@@ -120,6 +120,36 @@ void fretres(void) {
     frenod(header_tree);
 }
 
+void frepareq(struct httpareq *req) {
+    struct httitlereq *titl = &req->titl;
+    free(titl->uri.er);
+    free(titl->ver.er);
+
+    for (int i = 0; i < header_count; i++) {
+        struct point *e = &req->hentries[i];
+        if (!e->er) {
+            continue;
+        }
+
+        free(e->er);
+    }
+}
+
+void frepares(struct httpares *res) {
+    struct httitleres *titl = &res->titl;
+    free(titl->ver.er);
+    free(titl->stxt.er);
+
+    for (int i = 0; i < header_count; i++) {
+        struct point *e = &res->hentries[i];
+        if (!e->er) {
+            continue;
+        }
+
+        free(e->er);
+    }
+}
+
 int readlin(char **buff, char **buff_lim) {
     int diff = 0; 
     if ((*buff) >= (*buff_lim)) {
@@ -180,8 +210,12 @@ _loop:
 
     // header value
     diff = cursor_lim-cursor;
+    char *e = strndup(cursor, diff);
+    if (!e) {
+        return -1;
+    }
 
-    hentries[key].er = cursor;
+    hentries[key].er = e;
     hentries[key].len = diff;
 
     return 0;
@@ -231,7 +265,12 @@ _loop1:
     }
 
     diff = uri_lim-cursor;
-    titl->uri.er = cursor;
+    char *e = strndup(cursor, diff);
+    if (!e) {
+        return -1;
+    }
+
+    titl->uri.er = e;
     titl->uri.len = diff;
 
     cursor += diff;
@@ -248,7 +287,12 @@ _loop2:
 
     // ver
     diff = cursor_lim-cursor;
-    titl->ver.er = cursor;
+    e = strndup(cursor, diff); 
+    if (!e) {
+        return -1;
+    }
+
+    titl->ver.er = e;
     titl->ver.len = diff;
 
     cursor += diff;
@@ -272,7 +316,12 @@ int parestitl(char *offset, int len, struct httitleres *titl) {
     }
 
     diff = ver_lim-cursor;
-    titl->ver.er = cursor;
+    char *e = strndup(cursor, diff); 
+    if (!e) {
+        return -1;
+    }
+
+    titl->ver.er = e;
     titl->ver.len = diff;
 
     cursor += diff;
@@ -318,7 +367,12 @@ _loop2:
 
     // status text
     diff = cursor_lim-cursor;
-    titl->stxt.er = cursor;
+    e = strndup(cursor, diff);
+    if (!e) {
+        return -1;
+    }
+
+    titl->stxt.er = e;
     titl->stxt.len = diff;
 
     cursor += diff;
diff --git a/parslib.h b/parslib.h
index 77bca95..e0556c1 100644
--- a/parslib.h
+++ b/parslib.h
@@ -167,6 +167,8 @@ struct httpares {
 
 int initres(void);
 void fretres(void);
+void frepareq(struct httpareq *req);
+void frepares(struct httpares *res);
 int readlin(char **buff, char **buff_lim);
 int parshfield(char *offset, int len, /* out */ struct point *hentries);
 
diff --git a/test.c b/test.c
index 5e5e3ff..c97e6b1 100644
--- a/test.c
+++ b/test.c
@@ -72,6 +72,8 @@ int main(void) {
         fprintf(stdout, "-------------------------------------\n");
         printfpareq(req);
         fprintf(stdout, "-------------------------------------\n");
+
+        frepareq(req);
     }
     fprintf(stdout, "xxxRESxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\n");
     for (char *ch = strtok(reses, "|"); ch != NULL; ch = strtok(NULL, "|")) {
@@ -79,6 +81,8 @@ int main(void) {
         fprintf(stdout, "-------------------------------------\n");
         printfpares(res);
         fprintf(stdout, "-------------------------------------\n");
+
+        frepares(res);
     }
     fprintf(stdout, "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\n");