lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 65 insertions, 0 deletions

diff --git a/lib/mlibc/options/glibc/generic/error.cpp b/lib/mlibc/options/glibc/generic/error.cpp
new file mode 100644
index 0000000..45203b2
--- /dev/null
+++ b/lib/mlibc/options/glibc/generic/error.cpp
@@ -0,0 +1,65 @@
+#include <stdio.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <error.h>
+
+unsigned int error_message_count = 0;
+int error_one_per_line = 0;
+void (*error_print_progname)(void) = NULL;
+
+void error(int status, int errnum, const char *format, ...) {
+	va_list args;
+	va_start(args, format);
+
+	error_message_count++;
+	
+	fflush(stdout);
+	if(error_print_progname) {
+		error_print_progname();
+	} else {
+		fprintf(stderr, "%s: ", program_invocation_name);
+	}
+	vfprintf(stderr, format, args);
+	va_end(args);
+
+	if(errnum) {
+		fprintf(stderr, ": %s\n", strerror(errnum));
+	}
+
+	if(status) {
+		exit(status);
+	}
+}
+
+void error_at_line(int status, int errnum, const char *filename, unsigned int linenum, const char *format, ...) {
+	va_list args;
+	va_start(args, format);
+
+	static bool first_call = true;
+	static unsigned int last_line = 0;
+	if(!(last_line == linenum && error_one_per_line && !first_call)) {
+		first_call = false;
+		last_line = linenum;
+		error_message_count++;
+
+		fflush(stdout);
+		if(error_print_progname) {
+			error_print_progname();
+		} else {
+			fprintf(stderr, "%s:", program_invocation_name);
+		}
+		fprintf(stderr, "%s:%u: ", filename, linenum);
+		vfprintf(stderr, format, args);
+
+		if(errnum) {
+			fprintf(stderr, ": %s\n", strerror(errnum));
+		}
+	}
+	va_end(args);
+
+	if(status) {
+		exit(status);
+	}
+}