Reading BMP headers, packed. Reading incorrect values

I've recently made a program to read the fileheader and infoheader of a BMP file. I packed them as shown, fread them, and print the width and height. Unfortunatly the width and height come up as incorrect. I'm not sure why. Perhaps a bit/little endian issue? If so I don't know how to fix it. I'm compiling and running it on GCC.

#pragma pack(1)

typedef struct
{
    unsigned char fileMarker1;       /* 'B' */                       
    unsigned char fileMarker2;       /* 'M' */ 
    unsigned int   bfSize;             
    unsigned short unused1;           
    unsigned short unused2;           
    unsigned int   imageDataO开发者_运维问答ffset;  /* Offset to the start of image data */
 }FILEHEADER;

 typedef struct                       
 { 
    unsigned int   biSize;            
    signed int     width;            /* Width of the image */ 
    signed int     height;           /* Height of the image */ 
    unsigned short planes;             
    unsigned short bitPix;             
    unsigned int   biCompression;      
    unsigned int   biSizeImage;        
    int            biXPelsPerMeter;    
    int            biYPelsPerMeter;    
    unsigned int   biClrUsed;          
    unsigned int   biClrImportant;     
 }INFOHEADER;

 #pragma pack()

.....

 fread( &header, sizeof(FILEHEADER), 1, image );

.....

 fread( &iheader, sizeof(INFOHEADER), 1, image );

.....

 printf("Width: %i\n", iheader.width);
 printf("Height: %i\n", iheader.height);

A Windows bitmap file is indeed stored as little endian. Thus you will need to reverse the endianness of each 2 or 4 byte int value after loading, assuming that your system is big-endian. This IBM article describes various ways to do that.