From cd970928a0779219655d5bdaf46cf32f8c865b23 Mon Sep 17 00:00:00 2001
From: Tim Schumacher <timschumi@gmx.de>
Date: Wed, 26 May 2021 09:39:57 +0200
Subject: LibC: Implement getprogname and setprogname

---
 Userland/Libraries/LibC/stdlib.cpp | 19 +++++++++++++++++++
 Userland/Libraries/LibC/stdlib.h   |  2 ++
 2 files changed, 21 insertions(+)

(limited to 'Userland/Libraries/LibC')

diff --git a/Userland/Libraries/LibC/stdlib.cpp b/Userland/Libraries/LibC/stdlib.cpp
index 5449b9814d..8c2e5545d5 100644
--- a/Userland/Libraries/LibC/stdlib.cpp
+++ b/Userland/Libraries/LibC/stdlib.cpp
@@ -373,6 +373,25 @@ int putenv(char* new_var)
     return 0;
 }
 
+static const char* __progname = NULL;
+
+const char* getprogname()
+{
+    return __progname;
+}
+
+void setprogname(const char* progname)
+{
+    for (int i = strlen(progname) - 1; i >= 0; i--) {
+        if (progname[i] == '/') {
+            __progname = progname + i + 1;
+            return;
+        }
+    }
+
+    __progname = progname;
+}
+
 double strtod(const char* str, char** endptr)
 {
     // Parse spaces, sign, and base
diff --git a/Userland/Libraries/LibC/stdlib.h b/Userland/Libraries/LibC/stdlib.h
index c63e7eebc5..c9eae34db1 100644
--- a/Userland/Libraries/LibC/stdlib.h
+++ b/Userland/Libraries/LibC/stdlib.h
@@ -31,6 +31,8 @@ int putenv(char*);
 int unsetenv(const char*);
 int clearenv(void);
 int setenv(const char* name, const char* value, int overwrite);
+const char* getprogname();
+void setprogname(const char*);
 int atoi(const char*);
 long atol(const char*);
 long long atoll(const char*);
-- 
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