29 lines
450 B
C
29 lines
450 B
C
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#include <stdlib.h>
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#include <stdio.h>
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#include "utils.h"
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#include "error.h"
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enum image_type detect_image_type(FILE *pFile)
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{
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unsigned char buffer[2];
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if (pFile == NULL) {
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display_error(0, 1);
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return UNKN;
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}
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if (fread(buffer, 1, 2, pFile) < 2) {
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display_error(0, 2);
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return UNKN;
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}
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if (buffer[0] == 0xFF && buffer[1] == 0xD8) {
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return JPEG;
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} else if (buffer[0] == 0x89 && buffer[1] == 0x50) {
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return PNG;
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}
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return UNKN;
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}
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