School Commit Init

Anul 1/Semestrul 2/OS/Labs/c-test-practice/matrix-to-binary.c

@@ -0,0 +1,47 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+int main(int argc, char** argv) {
+    int** m;
+    FILE* f;
+    int i, j, rows, cols, fd;
+
+    f = fopen(argv[1], "r");
+    if(f == NULL) {
+        perror("Could not open file");
+        return 1;
+    }
+    fscanf(f, "%d %d", &rows, &cols);
+
+    m = (int**)malloc(sizeof(int*)*rows);
+    for(i=0; i<rows; i++) {
+        m[i] = (int*)malloc(sizeof(int)*cols);
+        for(j=0; j<cols; j++) {
+            fscanf(f, "%d",&m[i][j]);
+        }
+    }
+    fclose(f);
+
+    fd = open(argv[2], O_CREAT | O_WRONLY, 00600);
+    if(fd == -1) {
+        perror("Could not open destination file");
+        return 1;
+    }
+    write(fd, &rows, sizeof(int));
+    write(fd, &cols, sizeof(int));
+    for(i=0; i<rows; i++) {
+        for(j=0; j<cols; j++) {
+            write(fd, &m[i][j], sizeof(int));
+        }
+    }
+    close(fd);
+    for(i=0;i<rows;i++)
+    {
+    	free(m[i]);
+    }
+    free(m);
+    return 0;
+}