1 files changed, 155 insertions, 0 deletions
diff --git a/libc/syscall/syslibc.c b/libc/syscall/syslibc.c
new file mode 100644
index 0000000..68f5a0b
--- /dev/null
+++ b/libc/syscall/syslibc.c
@@ -0,0 +1,155 @@
+/* Copyright (C) 1995,1996 Robert de Bath <rdebath@cix.compulink.co.uk>
+ * This file is part of the Linux-8086 C library and is distributed
+ * under the GNU Library General Public License.
+ */
+
+#include <sys/types.h>
+#include <errno.h>
+#include <time.h>
+
+/* MSDOS has it's own versions */
+#ifndef __MSDOS__
+
+/********************** Function time ************************************/
+
+#ifdef L_time
+time_t time(where)
+time_t *where;
+{
+   struct timeval rv;
+   if( gettimeofday(&rv, (void*)0) < 0 ) return -1;
+   if(where) *where = rv.tv_sec;
+   return rv.tv_sec;
+}
+#endif
+
+/********************** Function abort ************************************/
+
+#ifdef L_abort
+#include <signal.h>
+
+int abort()
+{
+   signal(SIGABRT, SIG_DFL);
+   kill(SIGABRT, getpid());	/* Correct one */
+   pause();			/* System may just schedule */
+   signal(SIGKILL, SIG_DFL);
+   kill(SIGKILL, getpid());	/* Can't trap this! */
+   __exit(255);			/* WHAT!! */
+}
+#endif
+
+/********************** Function wait ************************************/
+
+#ifdef L_wait
+int
+wait(status)
+int * status;
+{
+   return wait4(-1, status, 0, (void*)0);
+}
+#endif
+
+/********************** Function waitpid ************************************/
+
+#ifdef L_waitpid
+int
+waitpid(pid, status, opts)
+int pid;
+int * status;
+int opts;
+{
+   return wait4(pid, status, opts, (void*)0);
+}
+#endif
+
+/********************** Function killpg ************************************/
+
+#ifdef L_killpg
+int
+killpg(pid, sig)
+int pid;
+int sig;
+{
+   if(pid == 0)
+       pid = getpgrp();
+   if(pid > 1)
+       return kill(-pid, sig);
+   errno = EINVAL;
+   return -1;
+}
+#endif
+
+/********************** Function setpgrp ************************************/
+
+#ifdef L_setpgrp
+int
+setpgrp()
+{
+   return setpgid(0,0);
+}
+#endif
+
+/********************** Function sleep ************************************/
+
+#ifdef L_sleep
+#include <signal.h>
+
+/* This uses SIGALRM, it does keep the previous alarm call but will lose
+ * any alarms that go off during the sleep
+ */
+
+static void alrm() { }
+
+unsigned int sleep(seconds)
+unsigned int seconds;
+{
+   void (*last_alarm)();
+   unsigned int prev_sec;
+
+   prev_sec = alarm(0);
+   if( prev_sec <= seconds ) prev_sec = 1; else prev_sec -= seconds;
+
+   last_alarm = signal(SIGALRM, alrm);
+   alarm(seconds);
+   pause();
+   seconds = alarm(prev_sec);
+   signal(SIGALRM, last_alarm);
+   return seconds;
+}
+#if 0
+        /* Is this a better way ? If we have select of course :-) */
+#include <sys/time.h>
+unsigned int
+sleep(seconds)
+unsigned int seconds;
+{
+        struct timeval timeout;
+	time_t start = time((void*)0);
+        timeout.tv_sec = seconds;
+        timeout.tv_usec = 0;
+        select(1, NULL, NULL, NULL, &timeout);
+	return seconds - (time((void*)0) - start);
+}
+#endif
+
+#endif
+
+/********************** Function usleep ************************************/
+
+#ifdef L_usleep
+#include <sys/time.h>
+void
+usleep(useconds)
+unsigned long useconds;
+{
+        struct timeval timeout;
+        timeout.tv_sec = useconds%1000000L;
+        timeout.tv_usec = useconds/1000000L;
+        select(1, NULL, NULL, NULL, &timeout);
+}
+#endif
+
+/********************** THE END ********************************************/
+
+#endif /* __MSDOS__ */