From 655f41b76907269af71fd67a87cbe0391b90a99f Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Tue, 4 Feb 2020 17:03:59 -0500
Subject: initial commit of code

---
 .gitignore    |  3 +++
 getprogname.c | 29 +++++++++++++++++++++++++++++
 getprogname.h |  9 +++++++++
 3 files changed, 41 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 getprogname.c
 create mode 100644 getprogname.h

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..33ec174
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+*.o
+*.so
+*.a
diff --git a/getprogname.c b/getprogname.c
new file mode 100644
index 0000000..9294f44
--- /dev/null
+++ b/getprogname.c
@@ -0,0 +1,29 @@
+#define _POSIX_C_SOURCE 2
+#include <limits.h>
+#include <stdio.h>
+#include <unistd.h>
+
+char *get_program_name(size_t n, char buf[static n])
+{
+	char cmd[_POSIX_ARG_MAX];
+	snprintf(cmd, sizeof(cmd), "ps -p %ld -o comm=", (long)getpid());
+
+	FILE *pip = popen(cmd, "r");
+	if (pip == NULL) {
+		return NULL;
+	}
+
+	if (fscanf(pip, "%s", buf) != 1) {
+		pclose(pip);
+		return NULL;
+	}
+
+	pclose(pip);
+	return buf;
+}
+
+char *getprogname(void)
+{
+	static char progname[_POSIX_NAME_MAX];
+	return get_program_name(sizeof(progname), progname);
+}
diff --git a/getprogname.h b/getprogname.h
new file mode 100644
index 0000000..f8f55bb
--- /dev/null
+++ b/getprogname.h
@@ -0,0 +1,9 @@
+#ifndef GETPROGNAME_H
+#define GETPROGNAME_H
+
+#include <stddef.h>
+
+char *get_program_name(size_t n, char buf[static n]);
+char *getprogname(void);
+
+#endif
-- 
cgit v1.2.1