47 lines
829 B
C
47 lines
829 B
C
#include <stdio.h>
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int main(argc,argv)
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int argc;
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char **argv;
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{
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FILE *f1,*f2;
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unsigned char c1,c2;
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long pos=0;
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if (argc!=3)
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{
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fprintf(stderr,"calling convention: %s <file1> <file2>\n",argv[0]);
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return 1;
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}
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f1=fopen(argv[1],"rb");
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if (f1==NULL)
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{
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perror(argv[1]); return 2;
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}
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f2=fopen(argv[2],"rb");
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if (f2==NULL)
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{
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perror(argv[2]); return 2;
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}
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while ((!feof(f1))&&(!feof(f2)))
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{
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fread(&c1,1,1,f1); fread(&c2,1,1,f2);
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if (c1!=c2)
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{
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fprintf(stderr,"compare error at position %d\n",pos);
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fclose(f1); fclose(f2); return 3;
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}
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pos++;
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}
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if (feof(f1)!=feof(f2))
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{
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fprintf(stderr,"files have different sizes\n");
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fclose(f1); fclose(f2); return 4;
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}
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fclose(f1); fclose(f2); return 0;
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}
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