Initial release

src/kill.c

@@ -0,0 +1,80 @@
+/* kill.c */
+
+
+
+#include <sys/types.h>
+#include <signal.h>
+#include <unistd.h>
+extern char * optarg;
+extern int optind;
+#include <stdlib.h>
+#include <stdio.h>
+
+
+/* kill */
+static int _kill(int sig, int argc, char * argv[])
+{
+	int i;
+	int res = 0;
+
+	for(i = 0; i < argc; i++)
+	{
+		int pid;
+		char * p;
+
+		pid = strtol(argv[i], &p, 10);
+		if(*(argv[i]) == '\0' || *p != '\0')
+		{
+			fprintf(stderr, "%s%s", argv[i],
+					": Invalid process number\n");
+			continue;
+		}
+		if(kill(pid, sig) == -1)
+		{
+			perror("kill");
+			res = 2;
+		}
+	}
+	return res;
+}
+
+
+/* usage */
+static int _usage(void)
+{
+	fprintf(stderr, "%s", "Usage: kill -s signal_name pid...\n\
+       kill -l [exit_status]\n\
+  -l    write all signal values supported\n\
+  -s    specify the signal to send\n");
+	return 1;
+}
+
+
+/* main */
+int main(int argc, char * argv[])
+{
+	int sig = SIGTERM;
+	int o;
+	char * p;
+
+	while((o = getopt(argc, argv, "ls:")) != -1)
+	{
+		switch(o)
+		{
+			case 'l':
+				fprintf(stderr, "%s", "Not yet implemented\n");
+				return _usage();
+			case 's':
+				/* FIXME signal_name expected, NaN... */
+				sig = strtol(optarg, &p, 10);
+				if(*optarg == '\0' || *p != '\0')
+					return _usage();
+				break;
+			case '?':
+				return _usage();
+		}
+	}
+	if(optind == argc)
+		return _usage();
+	return _kill(sig, argc - optind, &argv[optind]);
+}