Initial commitHEADmaster

1 files changed, 127 insertions, 0 deletions

diff --git a/main.c b/main.c
new file mode 100644
index 0000000..bdac748
--- /dev/null
+++ b/main.c
@@ -0,0 +1,127 @@
+
+/*
+ main.c
+ 
+    Copyright (C) 2004 Jeremy Zurcher
+ 
+    This is a free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+    General Public License for more details.
+    
+    You should have received a copy of the GNU General Public License
+    along with libdaemon; if not, write to the Free Software Foundation,
+    Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+
+    The above copyright notice and this permission notice shall be
+    included in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+    CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+    TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+    SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+*/
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "main.h"
+
+static char *prog_name = NULL;
+
+static void usage(void)
+{
+	fprintf(stderr,"\n/*\n *\t=> %s <= version "VERSION", "COPYRIGHT"\n *\n",prog_name);
+	fprintf(stderr," *\t\tThis program is a free software; you can redistribute it and/or modify\n");
+	fprintf(stderr," *\t\tit under the terms of the GNU General Public License as published by\n");
+	fprintf(stderr," *\t\tthe Free Software Foundation; either version 2 of the License, or\n");
+	fprintf(stderr," *\t\t(at your option) any later version.\n *\n");
+	fprintf(stderr," *\t\tThis program is distributed in the hope that it will be useful,\n");
+	fprintf(stderr," *\t\tbut WITHOUT ANY WARRANTY; without even the implied warranty of\n");
+	fprintf(stderr," *\t\tMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
+	fprintf(stderr," *\t\tGNU General Public License for more details.\n"); 
+	fprintf(stderr," */\n\n");
+	
+	fprintf(stderr,"usage : %s [-v] [ -a argument ]\n",prog_name);
+	fprintf(stderr,"\t\t--version      :  print version\n");
+	fprintf(stderr,"\t\t--help         :  print this screen\n");
+	fprintf(stderr,"\t\t-v             :  verbose mode\n");
+	fprintf(stderr,"\t\t-a             :  an argument\n");
+	exit(EXIT_FAILURE);
+}
+
+static void version()
+{
+	fprintf(stderr,"%s version "VERSION", "COPYRIGHT"\n",prog_name);
+	exit(EXIT_FAILURE);
+}
+
+static void argv_err(int i, char *opt, char *arg)
+{
+	if(i<0) fprintf(stderr,"%s : unknown option -%s.\n",prog_name,opt);
+	else if(i==0) fprintf(stderr,"%s : -%s option, argument is mandatory.\n",prog_name,opt);
+	else fprintf(stderr,"%s : -%s option, wrong argument %s.\n",prog_name,opt,arg);
+	exit(EXIT_FAILURE);
+}
+
+int main(int argc, char **argv)
+{
+	int verbose = 0;
+	char *arg = NULL;
+	
+	char *tmp = NULL;
+	
+	/* eat progname */
+	prog_name = basename(*argv);
+	++argv;
+	--argc;
+	while(argc){
+		tmp = *argv;
+		if(*tmp=='-'){
+			tmp++;
+			if(*tmp=='-'){
+				/* long options  */
+				tmp++;
+				if(!strncmp(tmp,"help",5)) usage();
+				else if(!strncmp(tmp,"version",8)) version();
+				else argv_err(-1,tmp-1,NULL);
+			}
+			/* short otions */
+			else if(*tmp=='v') {
+				verbose = 1;
+			}
+			else if(*tmp=='a') {
+				if(!--argc) argv_err(0,"a",NULL);	/* need argument */
+				arg = *++argv;
+			}
+			else {
+				argv_err(-1,*argv,NULL);		/* unknown option */
+			}
+		}
+		else {
+			/* no (more) options */
+			break;
+		}
+		argc--;
+		argv++;
+	}
+
+	printf("-v       : %d\n",verbose);
+	printf("-a       : %s\n",arg);
+	
+	while(argc--) printf("argument : %s\n",*argv++);
+	
+	exit(EXIT_SUCCESS);
+}
+