user: process titles, /bin/ps

1 files changed, 14 insertions, 0 deletions

diff --git a/src/user/lib/stdlib.c b/src/user/lib/stdlib.c
index 5d1b09f..4e471ba 100644
--- a/src/user/lib/stdlib.c
+++ b/src/user/lib/stdlib.c
@@ -1,3 +1,4 @@
+#include <_proc.h>
 #include <camellia.h>
 #include <camellia/syscalls.h>
 #include <errno.h>
@@ -16,6 +17,19 @@ void setprogname(const char *pg) {
 	progname = pg;
 }
 
+void setproctitle(const char *fmt, ...) {
+	if (!fmt) {
+		strcpy(_libc_psdata, progname);
+		return;
+	}
+	sprintf(_libc_psdata, "%s: ", progname);
+
+	va_list argp;
+	va_start(argp, fmt);
+	vsnprintf(_libc_psdata + strlen(_libc_psdata), 128, fmt, argp);
+	va_end(argp);
+}
+
 int mkstemp(char *template) {
 	// TODO randomize template
 	handle_t h = camellia_open(template, OPEN_CREATE | OPEN_RW);