24 lines
470 B
C
24 lines
470 B
C
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#include <stdio.h>
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#include <string.h>
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int main(void){
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FILE *fp = fopen("DATA5609.DAT","rb");
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char jpeg[12], gif[12], png[12];
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fseek(fp, 6, SEEK_SET);
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fread(jpeg,4,1,fp);
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jpeg[4] = '\0';
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fseek(fp, 0, SEEK_SET);
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fread(gif,6,1,fp);
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gif[6] = '\0';
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fseek(fp, 1, SEEK_SET);
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fread(png,3,1,fp);
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png[3] = '\0';
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if(!strcmp(jpeg,"JFIF")) printf("JPEG\n");
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else if(!strcmp(gif,"GIF89a")) printf("GIF\n");
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else if(!strcmp(png,"PNG")) printf("PNG\n");
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return 0;
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}
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