Link | Sscanf2

It handles null terminators and buffer overflows more gracefully than manual string slicing. Basic Syntax

| Specifier | Description | Example | |-----------|-------------|---------| | %as | Allocate string dynamically (free later) | sscanf2("hello", "%as", &str); | | %a[] | Dynamic string with custom scan set | %a[0-9] | | %b | Read binary number (e.g., 1010 → 10) | sscanf2("1010", "%b", &n); | | %r | Read raw bytes (requires width) | %r4 reads 4 bytes | | %m | Read into char** using malloc (like GNU) | %ms | | %# | Skip characters until match | %#[a-z] | sscanf2

If you are reading a line from a file with 20 variables, use sscanf with an enum structure to keep your code readable. Conclusion It handles null terminators and buffer overflows more

sscanf2 is what sscanf should have been: . Use it when you need to parse untrusted input without buffer overflows or manual string length calculations. Use it when you need to parse untrusted

#include <stdio.h> #include <stdlib.h> #include <string.h>

| Return | Meaning | |--------|---------| | 0 | No assignments made | | >0 | Number of successful assignments | | -1 | Invalid format specifier | | -2 | Destination buffer too small (fixed buffer) | | -3 | Argument count mismatch (too few args passed) |