1 files changed, 28 insertions, 0 deletions
diff --git a/src/libc/stdlib/progname.c b/src/libc/stdlib/progname.c
new file mode 100644
index 0000000..4cc0fb2
--- /dev/null
+++ b/src/libc/stdlib/progname.c
@@ -0,0 +1,28 @@
+#include <_proc.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static const char *progname;
+const char *getprogname(void) {
+	return progname;
+}
+void setprogname(const char *pg) {
+	progname = pg;
+	setproctitle(NULL);
+}
+
+void setproctitle(const char *fmt, ...) {
+	// TODO bounds checking
+	if (!fmt) {
+		strcpy(_psdata_loc->desc, progname);
+		return;
+	}
+	sprintf(_psdata_loc->desc, "%s: ", progname);
+
+	va_list argp;
+	va_start(argp, fmt);
+	vsnprintf(_psdata_loc->desc + strlen(_psdata_loc->desc), 128, fmt, argp);
+	va_end(argp);
+}
+