Convert String to Integer

#include <stdio.h>
#include <stdint.h>

int custom_atoi(const char *str) {
    // Your logic here
    int number=0;
    int neg=0;
    if( *str == '-')
    {
        neg=1;
        str++;
    }
    else if( *str =='+')
    {
        str++;
    }
    while(*str)
    {
      
        if(*str >= '0' && *str <='9')
        {
            number=(number*10)+(*str- '0');
        }else{
            break;
        }
        str++;
    }

    if(neg) return -(number);
    else return number;
}

int main() {
    char str[101];
    fgets(str, sizeof(str), stdin);

    // Remove newline
    uint8_t i = 0;
    while (str[i]) {
        if (str[i] == '\n') {
            str[i] = '\0';
            break;
        }
        i++;
    }

    printf("%d", custom_atoi(str));
    return 0;
}