Linux下用内存管理器的钩子函数跟踪内存泄漏(3)

int main(int argc, char* argv[])
...{
    if(argc != 3)
    ...{
        printf("usage: %s [log file] [out file] ", argv[0]);
        return 0;
    }

FILE* fp     = fopen(argv[1], "r");
    FILE* fp_out = fopen(argv[2], "wb+");

if(fp == NULL || fp_out == NULL)
    ...{
        printf("open file failed ");
        if(fp != NULL)
        ...{
            fclose(fp);
        }
        if(fp_out != NULL)
        ...{
            fclose(fp_out);
        }
        return;
    }

int   i = 0;
    int   n = 0;
    int   skip = 0;
    int   line_index = 0;
    void* addr = 0;
    char  line[260] = ...{0};
    void* addrs_array[MAX_ENTRY] = ...{0};
    int   lines_array[MAX_ENTRY] = ...{0};

    while(fgets(line, sizeof(line), fp) != NULL)
    ...{
        if(line[0] != 'a' && line[0] != 'f')
        ...{
            line_index++;
            continue;
        }

addr = NULL;
        if(strncmp(line, "alloc", 5) == 0 && n < MAX_ENTRY)
        ...{
            sscanf(line, "alloc %p", &addr);
            addrs_array[n] = addr;
            lines_array[n] = line_index;
            n++;
           
            printf("a");
        }
        else if(strncmp(line, "free", 4) == 0)
        ...{
            sscanf(line, "free %p", &addr);
            for(i = 0; i < n; i++)
            ...{
                if(addrs_array[i] == addr)
                ...{
                    lines_array[i] = -1;
                    break;
                }
            }

printf("f");
        }
        line_index++;
    }

printf(" ");
    fseek(fp, 0, 0);

i = 0;
    line_index = 0;
    while(fgets(line, sizeof(line), fp) != NULL)
    ...{
        if(strncmp(line, "alloc", 5) == 0)
        ...{
            if(lines_array[i] == line_index)
            ...{
                printf("leak %s", line);
                fprintf(fp_out, "*");
                skip = 0;
                i++;
            }
            else
            ...{
                skip = 1;
            }
        }
        else if(strncmp(line, "free", 4) == 0)
        ...{
            skip = 1;
        }