[SP/P01] Solved exercises from first practice (again)

1 files changed, 21 insertions, 0 deletions

diff --git a/Year 3/System programming/Practice01/ex2-head.c b/Year 3/System programming/Practice01/ex2-head.c
new file mode 100644
index 0000000..197e8d2
--- /dev/null
+++ b/Year 3/System programming/Practice01/ex2-head.c
@@ -0,0 +1,21 @@
+#include <unistd.h> // ssize_t, read, write
+#include <fcntl.h> // open, close, O_RDONLY, ...
+#include <stdio.h> // printf, perror
+
+int main(int argc, char* argv[]) {
+	int f = open(argv[1], O_RDONLY);
+	if (f < 0) {
+		perror("open");
+		return 1;
+	}
+
+	ssize_t lines = 10;
+
+	char buf;
+	while (read(f, &buf, 1) && lines > 0) {
+		if (buf == '\n') lines--;
+		printf("%c", buf);
+	}
+
+	close(f);
+}