Banned functions in CS3214§

The following C functions are banned in all assignments and exams in CS3214:

• strcpy
• strcat
• strncpy
• strncat
• sprintf
• vsprintf
• fscanf("%s", ...), scanf("%s", ...), or sscanf with the "%s" modifier.

Reimplementations of banned functions§

Reimplementations of banned functions are also not permitted, as is the use of memcpy in attempts to reimplement them.

For example, code such as this:

    char* final = calloc(500, sizeof(char));

    int index = 0;
    final[index++] = '@';
    memcpy(final + index, host, strlen(host));
    index += strlen(host);

    final[index++] = ' ';
    final[index++] = 'i';
    final[index++] = 'n';
    final[index++] = ' ';

    memcpy(final + index, lastpwd, strlen(lastpwd));
    index += strlen(lastpwd);

    final[index++] = ']';
    final[index++] = ' ';

falls under this category.

Other Resources§

• List of functions banned by GitHub
• Microsoft
• Intel