Initial commit

3 files changed, 176 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..44dd1d4
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,30 @@
+CC=gcc
+CFLAGS=-I. -Wall -fPIC
+MAJOR=0
+MINOR=1
+VERSION=$(MAJOR).$(MINOR)
+NAME=clog
+DESTDIR?=/usr/local/lib
+
+LFLAGS=
+
+%.o: %.c
+	$(CC) -c -o $@ $< $(CFLAGS)
+
+lib: lib$(NAME).so.$(VERSION)
+
+lib$(NAME).so:
+	ldconfig -v -n
+	ln -s lib$(NAME).so.$(MAJOR) lib$(NAME).so
+
+lib$(NAME).so.$(VERSION): $(NAME).o
+	$(CC) -shared  $^ -o $@
+
+install: lib
+	install -Dm644 lib$(NAME).so.$(VERSION) $(DESTDIR)
+	install -Dm644 $(NAME).h /usr/include/
+
+clean:
+	rm -f lib$(NAME)*
+	rm -f src/*.o
+
diff --git a/clog.c b/clog.c
new file mode 100644
index 0000000..409ba21
--- /dev/null
+++ b/clog.c
@@ -0,0 +1,121 @@
+/*
+ * =====================================================================================
+ *
+ *       Filename:  log.c
+ *
+ *    Description:  Implementations for logging framework 
+ *
+ *        Version:  1.0
+ *        Created:  10/27/2022 10:02:48 AM
+ *       Revision:  none
+ *       Compiler:  gcc
+ *
+ *         Author:  Cara Salter (cara@devcara.com) 
+ *   Organization:  
+ *
+ * =====================================================================================
+ */
+
+#define _GNU_SOURCE
+/* #####   HEADER FILE INCLUDES   ################################################### */
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+
+
+/* #####   PROTOTYPES  -  LOCAL TO THIS SOURCE FILE   ############################### */
+void process_fmt(char* msg, va_list args);
+
+/* #####   FUNCTION DEFINITIONS  -  LOCAL TO THIS SOURCE FILE   ##################### */
+
+
+/* 
+ * ===  FUNCTION  ======================================================================
+ *         Name:  print_date
+ *  Description:  Prints the current date/time to stdout without a newline =====================================================================================
+ */
+void print_date() {
+    time_t cur_time = time(NULL);
+    struct tm t = *localtime(&cur_time);
+
+    printf("%d-%02d-%02d %02d:%02d:%02d", t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec);
+}		/* -----  end of function print_date  ----- */
+/* 
+ * ===  FUNCTION  ======================================================================
+ *         Name:  debug
+ *  Description:  Outputs debugging information to stdout 
+ * =====================================================================================
+ */
+int debug(char* msg, ...) {
+    va_list args;
+    print_date();
+    va_start(args, msg);
+    char *fmt_string; 
+    vasprintf(&fmt_string, msg, args);
+    printf(" \033[34mDEBUG\033[0m %s\n", fmt_string);
+    free(fmt_string);
+    va_end(args);
+    return 0;
+}
+
+
+/* 
+ * ===  FUNCTION  ======================================================================
+ *         Name:  info
+ *  Description:  Outputs informational messages to stdout
+ * =====================================================================================
+ */
+int info(char* msg, ...) {
+    va_list args;
+    print_date();
+    va_start(args, msg);
+    char *fmt_string;
+    vasprintf(&fmt_string, msg, args);
+    printf(" \033[32mINFO\033[0m %s\n", fmt_string);
+    free(fmt_string);
+    va_end(args);
+    return 0;
+}		/* -----  end of function info  ----- */
+
+
+/* 
+ * ===  FUNCTION  ======================================================================
+ *         Name:  warning
+ *  Description:  Outputs a warning message to stdout
+ * =====================================================================================
+ */
+int warning(char* msg, ...) {
+    va_list args;
+
+    print_date();
+    va_start(args, msg);
+    char *fmt_string;
+    vasprintf(&fmt_string, msg, args);
+    printf(" \033[33mWARNING\033[0m %s\n", fmt_string);
+    free(fmt_string);
+    va_end(args);
+    return 0;
+}		/* -----  end of function warning  ----- */
+
+
+/* 
+ * ===  FUNCTION  ======================================================================
+ *         Name:  error
+ *  Description:  Outputs an error to stdout and stderr
+ * =====================================================================================
+ */
+int error(char* msg, ...) {
+    va_list args;
+    print_date();
+    va_start(args, msg);
+    char *fmt_string;
+    vasprintf(&fmt_string, msg, args);
+    printf(" \033[31mERROR\033[0m %s\n", fmt_string);
+    fprintf(stderr, " \033[31mERROR\033[0m %s\n", fmt_string);
+    free(fmt_string);
+    va_end(args);
+    return 0;
+}		/* -----  end of function error  ----- */
+
diff --git a/clog.h b/clog.h
new file mode 100644
index 0000000..67c11f4
--- /dev/null
+++ b/clog.h
@@ -0,0 +1,25 @@
+/*
+ * =====================================================================================
+ *
+ *       Filename:  log.h
+ *
+ *    Description:  Header file for logging framework 
+ *
+ *        Version:  1.0
+ *        Created:  10/27/2022 09:56:57 AM
+ *       Revision:  none
+ *       Compiler:  gcc
+ *
+ *         Author:  Cara Salter (cara@devcara.com)
+ *   Organization:  
+ *
+ * =====================================================================================
+ */
+
+
+/* #####   EXPORTED FUNCTION DECLARATIONS   ######################################### */
+
+int debug(char* msg, ...);
+int info(char* msg, ...);
+int warning(char* msg, ...);
+int error(char* msg, ...);