added first article

Makefile

@@ -5,4 +5,6 @@ default: all
 
 all: embed libdzonerzy libdzonerzy-gen
 
+runlocal: embed libdzonerzy-runlocal
+
 clean: clean-tools clean-libdzonerzy

src/Makefile

@@ -21,7 +21,7 @@ SITE_DIST = dist/site
 AWK_UTIL = awk '/^\s*\[[0-9]+\]\s+([^\.].+)/ {print $$2}'
 AWK_UTIL_NOCRLF = awk '/^\s*\[[0-9]+\]\s+([^\.].+)/ {printf $$2" "}'
 
-PANDOC_ARGS = --standalone --table-of-contents --section-divs --email-obfuscation=references --css=main.css --include-after-body=$(RAW_DIST)/footer.html
+PANDOC_ARGS = --standalone --table-of-contents --section-divs --email-obfuscation=references --css="/main.css" --include-after-body=$(RAW_DIST)/footer.html --include-after-body=$(RAW_DIST)/scripts.html
 
 libdzonerzy:
 	@echo  "/* DO NOT EDIT THIS FILE - it is machine generated */" > $(SRC_DIR)/res.h
@@ -38,11 +38,18 @@ libdzonerzy-dump:
 
 libdzonerzy-gen: libdzonerzy-dump
 	@mkdir -p $(SITE_DIST)/assets/
+	@mkdir -p $(SITE_DIST)/articles/
 	@$(foreach page, $(wildcard $(RAW_DIST)/pages/*), $(PANDOC) $(PANDOC_ARGS) --from=markdown --to=html --output=$(shell echo $(SITE_DIST)/$(notdir $(page))  | sed 's/\.md/\.html/') $(page);)
+	@$(foreach article, $(wildcard $(RAW_DIST)/articles/*), $(PANDOC) $(PANDOC_ARGS) --from=markdown --to=html --output=$(shell echo $(SITE_DIST)/articles/$(notdir $(article))  | sed 's/\.md/\.html/') $(article);)
 	@cp $(RAW_DIST)/main.css $(SITE_DIST)/main.css
+	@cp $(RAW_DIST)/main.js $(SITE_DIST)/main.js
 	@cp $(RAW_DIST)/sitemap.xml $(SITE_DIST)/sitemap.xml
 	@cp -r $(RAW_DIST)/embed/* $(SITE_DIST)/assets/
-	@chmod -R 666 $(SITE_DIST)/*
+	@cp $(DIST)/libdzonerzy.so $(SITE_DIST)/libdzonerzy.so
+	@chmod -R 755 $(SITE_DIST)/*
+
+libdzonerzy-runlocal: libdzonerzy libdzonerzy-gen
+	@cd $(SITE_DIST) && python3 -m http.server 8080
 
 clean-libdzonerzy:
 	@echo  "/* DO NOT EDIT THIS FILE - it is machine generated */" > $(SRC_DIR)/res.h

src/libdzonerzy.so.c

@@ -23,10 +23,14 @@ Copyright:
 #define MAIN_CSS                                        \
     CSS_COMMENT("main.css")                             \
     CSS_NEWLINE()                                       \
+    CSS_SELECTOR(":root")                               \
+    CSS_PROPERTY("--main-link-color", "#215fc2")        \
+    CSS_END_SELECTOR()                                  \
     CSS_SELECTOR("html,body")                           \
     CSS_PROPERTY("margin", "0")                         \
     CSS_PROPERTY("padding", "0")                        \
     CSS_PROPERTY("width", "100%")                       \
+    CSS_PROPERTY("height", "100vh")                     \
     CSS_END_SELECTOR()                                  \
     CSS_SELECTOR("body")                                \
     CSS_PROPERTY("font-family", "monospace")            \
@@ -44,11 +48,9 @@ Copyright:
     CSS_PROPERTY("padding", "1em")                      \
     CSS_END_SELECTOR()                                  \
     CSS_SELECTOR("footer")                              \
-    CSS_PROPERTY("border", "1px solid #222")        \
+    CSS_PROPERTY("border-top", "1px solid #222")        \
-    CSS_PROPERTY("border-radius", "15px")           \
     CSS_PROPERTY("background-color", "#ccc")            \
     CSS_PROPERTY("color", "#000")                       \
-    CSS_PROPERTY("margin", "1em")                   \
     CSS_PROPERTY("padding", "1em")                      \
     CSS_PROPERTY("flex-shrink", "0")                    \
     CSS_PROPERTY("display", "flex")                     \
@@ -161,18 +163,50 @@ Copyright:
     CSS_END_SELECTOR()                                  \
     CSS_SELECTOR("pre::-webkit-scrollbar")              \
     CSS_PROPERTY("display", "none")                     \
+    CSS_END_SELECTOR()                                  \
+    CSS_SELECTOR("a")                                   \
+    CSS_PROPERTY("text-decoration", "none")             \
+    CSS_PROPERTY("color", "var(--main-link-color)")     \
+    CSS_END_SELECTOR()                                  \
+    CSS_SELECTOR("a:visted")                            \
+    CSS_PROPERTY("color", "var(--main-link-color)")     \
+    CSS_END_SELECTOR()                                  \
+    CSS_SELECTOR(".modal")                              \
+    CSS_PROPERTY("position", "fixed")                   \
+    CSS_PROPERTY("top", "0")                            \
+    CSS_PROPERTY("left", "0")                           \
+    CSS_PROPERTY("width", "100%")                       \
+    CSS_PROPERTY("height", "100%")                      \
+    CSS_PROPERTY("background-color", "rgba(0,0,0,0.7)") \
+    CSS_PROPERTY("z-index", "9999")                     \
+    CSS_PROPERTY("cursor", "zoom-out")                  \
+    CSS_END_SELECTOR()                                  \
+    CSS_SELECTOR(".modal img")                          \
+    CSS_PROPERTY("min-height", "80vh")                  \
+    CSS_PROPERTY("max-height", "80vh")                  \
+    CSS_PROPERTY("width", "auto")                       \
+    CSS_PROPERTY("max-width", "95vw")                   \
+    CSS_PROPERTY("position", "absolute")                \
+    CSS_PROPERTY("top", "50%")                          \
+    CSS_PROPERTY("left", "50%")                         \
+    CSS_PROPERTY("transform", "translate(-50%, -50%)")  \
+    CSS_PROPERTY("margin", "0")                         \
+    CSS_END_SELECTOR()                                  \
+    CSS_SELECTOR(".zoomable")                           \
+    CSS_PROPERTY("max-width", "60vw")                   \
+    CSS_PROPERTY("max-height", "45vh")                  \
     CSS_END_SELECTOR()
 
 #define INDEX_MD                                                                                      \
     MD_META("DZONERZY's Blog", "DZONERZY")                                                            \
-    MD_META_CUSTOM("Thursday 12 July 2023")                                                         \
+    MD_META_CUSTOM("Wednesday, July 12, 2023")                                                        \
     MD_NEWLINE()                                                                                      \
     MD_SECTION1("About")                                                                              \
-    MD_IMAGE("Picture of DZONERZY", "assets/dzonerzy.jpg")                                          \
+    MD_IMAGE_ATTR("Picture of DZONERZY", "assets/dzonerzy.jpg", "class", "zoomable")                  \
     MD_TEXT("Hello world here is dzonerzy, also known as Daniele Linguaglossa,")                      \
     MD_TEXT("I'm an offensive security researcher and developer.")                                    \
     MD_NEWLINE()                                                                                      \
-    MD_TEXT("I'm the author of this blog, and I'm using it to share my")                            \
+    MD_TEXT("I'm the author of this blog, and I'm using it to share my ")                             \
     MD_TEXT("researches and my projects.")                                                            \
     MD_NEWLINE()                                                                                      \
     MD_TEXT("I'm also the author of the library that powers this blog, ")                             \
@@ -181,21 +215,30 @@ Copyright:
     MD_TEXT(" that I wrote in C!")                                                                    \
     MD_NEWLINE()                                                                                      \
     MD_TEXT("You can find the source code of this blog on my ")                                       \
-    MD_LINK("git repository", "https://cgit.libdzonerzy.so/libdzonerzy.so/tree")                    \
+    MD_LINK("git repository", "https://git.libdzonerzy.so/dzonerzy/libdzonerzy.so")                   \
     MD_TEXT(".")                                                                                      \
     MD_NEWLINE()                                                                                      \
     MD_SECTION1("Projects")                                                                           \
     MD_TEXT("Here is a list of my projects, that I've made in my spare time, some of them are ")      \
     MD_TEXT("still in development, but I'm working hard to finish them.")                             \
     MD_NEWLINE()                                                                                      \
-    MD_LIST(MD_BOLD(MD_LINK("libdzonerzy.so", "https://cgit.libdzonerzy.so/libdzonersy.so/tree/"))) \
+    MD_LIST(MD_BOLD(MD_LINK("libdzonerzy.so", "https://git.libdzonerzy.so/dzonerzy/libdzonerzy.so"))) \
     MD_TEXT(" -- libdzonerzy.so is a shared object that I wrote in C, it's a library ")               \
     MD_TEXT("that I use to power this blog.")                                                         \
     MD_NEWLINE()                                                                                      \
-    MD_LIST(MD_BOLD(MD_LINK("CaptainHook", "https://cgit.libdzonerzy.so/captainhook/tree/")))       \
+    MD_LIST(MD_BOLD(MD_LINK("CaptainHook", "https://git.libdzonerzy.so/dzonerzy/CaptainHook")))       \
     MD_TEXT(" -- CaptainHook is the next-gen hooking framework, it's a library that ")                \
     MD_TEXT("allow to hook functions in a very easy way without knowing the function prototype.")     \
     MD_NEWLINE()                                                                                      \
+    MD_SECTION1("Articles")                                                                           \
+    MD_TEXT("Below you can find a list of my articles, I'm writing articles about ")                  \
+    MD_TEXT("offensive security and programming, I'm also writing articles about ")                   \
+    MD_TEXT("my projects.")                                                                           \
+    MD_NEWLINE()                                                                                      \
+    MD_LIST(MD_BOLD(MD_LINK("CaptainHook next-gen hooking framework",                                 \
+                            "/articles/captainhook-a-next-gen-hooking-framework.html")))              \
+    MD_TEXT(" -- A different approach to prototype-less hooking.")                                    \
+    MD_NEWLINE()                                                                                      \
     MD_SECTION1("FAQ")                                                                                \
     MD_TEXT("Here is a list of frequently asked questions, if you have any other questions ")         \
     MD_TEXT("feel free to contact me at ")                                                            \
@@ -222,14 +265,11 @@ Copyright:
     MD_LIST(MD_BOLD("Q: ") MD_TEXT("Is Sysdig hiring?"))                                              \
     MD_NEWLINE()                                                                                      \
     MD_TEXT("Yes, we are always looking for new talents, if you are interested in working ")          \
-    MD_TEXT("with me, feel free to send your resume at ... try to find it :D , ")                   \
+    MD_TEXT("with me, feel free to send your resume at ... try to find it, after all it's still ")    \
-    MD_TEXT("hint (")                                                                               \
+    MD_TEXT("\"inside\" this blog.")                                                                  \
-    MD_BOLD("libdzonerzy.so")                                                                       \
+    MD_NEWLINE()
-    MD_TEXT(").")                                                                                   \
-    MD_NEWLINE()                                                                                    \
-    MD_TEXT("Michele is gayyyyyyyyyyyyyyyyyyyyyyyy")
 
-#define FOOTER_MD                                                                                                           \
+#define FOOTER_HTML                                                                                                         \
     MD_RAWTAG("footer", ""                                                                                                  \
                         "<span>"                                                                                            \
                         "Powered by&nbsp;<a href=\"/libdzonerzy.so\">libdzonerzy.so</a>"                                    \
@@ -238,12 +278,103 @@ Copyright:
                         "<span>made with <div class='hearth'>&#10084;</div> by&nbsp;<b class='author'>dzonerzy</b></span>") \
     MD_NEWLINE()
 
+#define SCRIPTS_HTML                                                                                                                  \
+    HTML_TAG_OPEN_CONTENT("script", "src=\"/main.js\"", "")                                                                           \
+    HTML_TAG_OPEN("script", "type=\"text/javascript\"")                                                                               \
+    HTML_RAWTEXT("var _gaq = _gaq || [];")                                                                                            \
+    HTML_NEWLINE()                                                                                                                    \
+    HTML_RAWTEXT("_gaq.push(['_setAccount', 'UA-XXXXX-X']);")                                                                         \
+    HTML_NEWLINE()                                                                                                                    \
+    HTML_RAWTEXT("_gaq.push(['_trackPageview']);")                                                                                    \
+    HTML_NEWLINE()                                                                                                                    \
+    HTML_RAWTEXT("(function() {")                                                                                                     \
+    HTML_NEWLINE()                                                                                                                    \
+    HTML_RAWTEXT("var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;")                          \
+    HTML_NEWLINE()                                                                                                                    \
+    HTML_RAWTEXT("ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';") \
+    HTML_NEWLINE()                                                                                                                    \
+    HTML_RAWTEXT("var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);")                             \
+    HTML_NEWLINE()                                                                                                                    \
+    HTML_RAWTEXT("})();")                                                                                                             \
+    HTML_NEWLINE()                                                                                                                    \
+    HTML_TAG_CLOSE("script")                                                                                                          \
+    HTML_NEWLINE()
+
+// wait for page ready and then execute the code don't use jQuery
+// because it's a static website and I don't want to use external
+// libraries
+// use a div with class modal to show the image
+// the image must maintain the aspect ratio
+// the image must be centered
+
+#define MAIN_JS                                                                \
+    HTML_RAWTEXT("function zoomImages() {")                                    \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("var imgs = document.getElementsByClassName('zoomable');")    \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("for (var i = 0; i < imgs.length; i++) {")                    \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("imgs[i].style.cursor = 'zoom-in';")                          \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("imgs[i].addEventListener('click', function() {")             \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("var modal = document.createElement('div');")                 \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("modal.className = 'modal';")                                 \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("modal.addEventListener('click', function() {")               \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("modal.parentNode.removeChild(modal);")                       \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("});")                                                        \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("var img = document.createElement('img');")                   \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("img.src = this.src;")                                        \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("modal.appendChild(img);")                                    \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("document.body.appendChild(modal);")                          \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("});")                                                        \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("}")                                                          \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("}")                                                          \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("document.addEventListener('DOMContentLoaded', function() {") \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("zoomImages();")                                              \
+    HTML_NEWLINE()                                                             \
+    HTML_RAWTEXT("});")                                                        \
+    HTML_NEWLINE()
+
 #define SITEMAP_XML                               \
     XML_URLSET()                                  \
     XML_URL("https://libdzonerzy.so/index.html")  \
     XML_URL("https://libdzonerzy.so/sitemap.xml") \
     XML_END_URLSET()
 
+#define CAPTAINHOOK_MD                                                                  \
+    MD_META("CaptainHook - A different approach to prototype-less hooking", "DZONERZY") \
+    MD_META_CUSTOM("Thursday, July 13, 2023")                                           \
+    MD_SECTION1("CaptainHook -- A different approach to prototype-less hooking")        \
+    MD_TEXT("CaptainHook is a new hooking framework that allows you to hook ")          \
+    MD_TEXT("functions without the need of a prototype. ")                              \
+    MD_NEWLINE()                                                                        \
+    MD_TEXT("It uses a different approach to hooking, instead of modifying the ")       \
+    MD_TEXT("function prologue, it before perform the emulation of the function ")      \
+    MD_TEXT("in three different points: ")                                              \
+    MD_NEWLINE()                                                                        \
+    MD_TEXT("1. Before the function is called ")                                        \
+    MD_NEWLINE()                                                                        \
+    MD_TEXT("2. After the function is called ")                                         \
+    MD_NEWLINE()                                                                        \
+    MD_TEXT("3. Before the function returns ")                                          \
+    MD_NEWLINE()                                                                        \
+    MD_LINK("< Back", "/")                                                              \
+    MD_NEWLINE()
+
 int main(int argc, char **argv)
 {
     fprintf(stdout, "https://libdzonerzy.so\n");
@@ -256,6 +387,12 @@ static const char maincss[] = MAIN_CSS;
 SECTION("pages/index.md")
 static const char indexmd[] = INDEX_MD;
 SECTION("footer.html")
-static const char footermd[] = FOOTER_MD;
+static const char footerhtml[] = FOOTER_HTML;
+SECTION("scripts.html")
+static const char scriptshtml[] = SCRIPTS_HTML;
+SECTION("main.js")
+static const char mainjs[] = MAIN_JS;
 SECTION("sitemap.xml")
 static const char sitemapxml[] = SITEMAP_XML;
+ARTICLE("captainhook-a-next-gen-hooking-framework")
+static const char captainhook[] = CAPTAINHOOK_MD;

src/libdzonerzy.so.h

@@ -77,6 +77,8 @@ Copyright:
 #define MD_LINK(x, y) "[" x "](" y ")"
 // image macros
 #define MD_IMAGE(x, y) "![" x "](" y ")\n\n"
+// image macros with attributes
+#define MD_IMAGE_ATTR(x, y, a, v) "![" x "](" y "){" a "=\"" v "\"}\n\n"
 // raw html tag macros
 #define MD_RAWTAG(t, c) "<" t ">" c "</" t ">"
 // new line macros
@@ -103,180 +105,16 @@ Copyright:
 // end urlset macros
 #define XML_END_URLSET() "</urlset>\n"
 
-/*#define STACK_SIZE 10 * 1024
+// HTML macros
-
+// html tag macros
-enum Flags
+#define HTML_TAG(t, c) "<" t ">\n" c "</" t ">\n"
-{
+// html tag macros open
-    EQ = 1 << 0,
+#define HTML_TAG_OPEN(t, a) "<" t " " a ">\n"
-    GT = 1 << 1,
+// html tag macros with attributes and content
-    LT = 1 << 2,
+#define HTML_TAG_OPEN_CONTENT(t, a, c) "<" t " " a ">\n" c "</" t ">\n"
-};
+// html tag macros close
-
+#define HTML_TAG_CLOSE(t) "</" t ">"
-typedef struct machine
+// html raw text macros
-{
+#define HTML_RAWTEXT(x) x
-    uint32_t R;
+// html new line macros
-    uint32_t SP;
+#define HTML_NEWLINE() "\n"
-    uint32_t FL;
-    uint8_t *stack;
-} machine_t, *pmachine_t;
-
-#define C_START    \
-    int fd[2];     \
-    char *b = "a"; \
-    int fd2;       \
-    int *m;        \
-    int a;         \
-    char *c;       \
-    int *p;
-
-#define sys_write(x, y, z)         \
-    __asm__ __volatile__("syscall" \
-                         :         \
-                         : "a"(1), "D"(x), "S"(y), "d"(z))
-
-#define sys_pipe(x)                \
-    __asm__ __volatile__("syscall" \
-                         :         \
-                         : "a"(22), "D"(x))
-
-#define sys_close(x)               \
-    __asm__ __volatile__("syscall" \
-                         :         \
-                         : "a"(3), "D"(x))
-
-#define sys_fork()                       \
-    ({                                   \
-        int ret;                         \
-        __asm__ __volatile__("syscall"   \
-                             : "=a"(ret) \
-                             : "a"(57)); \
-        ret;                             \
-    })
-
-#define sys_kill(x, y)                     \
-    __asm__ __volatile__("movl %0, %%edi;" \
-                         "movl %1, %%esi;" \
-                         "mov $62, %%rax;" \
-                         "syscall;"        \
-                         :                 \
-                         : "r"(x), "r"(y)  \
-                         : "edi", "esi", "rax")
-
-// getpid and save to pid variable
-#define sys_getpid()                     \
-    ({                                   \
-        int ret;                         \
-        __asm__ __volatile__("syscall"   \
-                             : "=a"(ret) \
-                             : "a"(39)); \
-        ret;                             \
-    })
-
-#define sys_open(a1, a2, a3)                                     \
-    ({                                                           \
-        unsigned long ret;                                       \
-        __asm__ __volatile__("syscall"                           \
-                             : "=a"(ret)                         \
-                             : "a"(2), "D"(a1), "S"(a2), "d"(a3) \
-                             : "rcx", "r11", "memory");          \
-        ret;                                                     \
-    })
-
-#define sys_mmap(a1, a2, a3, a4, a5, a6)                           \
-    ({                                                             \
-        unsigned long ret;                                         \
-        register long r10 __asm__("r10") = a4;                     \
-        register long r8 __asm__("r8") = a5;                       \
-        register long r9 __asm__("r9") = a6;                       \
-        __asm__ __volatile__("syscall"                             \
-                             : "=a"(ret)                           \
-                             : "a"(9), "D"(a1), "S"(a2),           \
-                               "d"(a3), "r"(r10), "r"(r8), "r"(r9) \
-                             : "rcx", "r11", "memory");            \
-        ret;                                                       \
-    })
-
-#define sys_munmap(a1, a2)                   \
-    asm volatile("syscall"                   \
-                 :                           \
-                 : "a"(11), "D"(a1), "S"(a2) \
-                 : "rcx", "r11", "memory");
-
-#define C_SIGPIPE(c)        \
-    sys_pipe(fd);           \
-    sys_close(fd[0]);       \
-    sys_write(fd[1], b, 1); \
-    __asm__(".byte " #c);
-
-#define C_SIGTRAP(c) \
-    __asm__("int3"); \
-    __asm__(".byte " #c);
-
-#define C_SIGILL(j1, j2, x, k)              \
-    __asm__("ud2");                         \
-    __asm__(".byte " #x);                   \
-    if (k)                                  \
-    {                                       \
-        __asm__ __volatile__ goto("jmp %l0" \
-                                  :         \
-                                  :         \
-                                  :         \
-                                  : j1);    \
-    }                                       \
-    else                                    \
-    {                                       \
-        __asm__ __volatile__ goto("jmp %l0" \
-                                  :         \
-                                  :         \
-                                  :         \
-                                  : j2);    \
-    }
-
-#define C_SIGFPE(c)          \
-    __asm__("mov $1, %rax"); \
-    __asm__("mov $0, %rbx"); \
-    __asm__("div %rbx");     \
-    __asm__(".byte " #c);
-
-#define C_SIGSEGV(c)            \
-    *(int *)0xffffffffffff = 1; \
-    __asm__(".byte " #c);
-
-#define C_SIGTERM(c)                \
-    sys_kill(process_pid, SIGTERM); \
-    __asm__(".byte " #c);
-
-#define C_SIGXCPU(c)                \
-    sys_kill(process_pid, SIGXCPU); \
-    __asm__(".byte " #c);
-
-#define C_SIGSYS(c)                \
-    sys_kill(process_pid, SIGSYS); \
-    __asm__(".byte " #c);
-
-#define C_SIGBUS(v)                              \
-    __asm__("pushf\norl $0x40000,(%rsp)\npopf"); \
-    a = 0xffffff;                                \
-    c = (char *)&a;                              \
-    c++;                                         \
-    p = (int *)c;                                \
-    *p = 10;                                     \
-    __asm__(".byte " #v);                        \
-    __asm__("pushf\nxorl $0x40000,(%rsp)\npopf");
-
-#define C_SIGXFSZ(c)                \
-    sys_kill(process_pid, SIGXFSZ); \
-    __asm__(".byte " #c);
-
-#define C_END         \
-    sys_close(fd[0]); \
-    sys_close(fd[1]);
-
-#define OP_ADD 0xd1
-#define OP_SUB 0x71
-#define OP_MUL 0xf7
-#define OP_DIV 0x7f
-#define OP_MOD 0x3c
-#define OP_XOR 0x5a
-#define OP_AND 0x2d
-#define OP_OR 0x6e*/