mirror of
https://github.com/kissste/rtl8710_Raw_Packets.git
synced 2024-11-22 12:44:15 +00:00
45 lines
991 B
C
45 lines
991 B
C
/*
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Compile command:
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gcc -m32 -o tools/linux/padding tools/linux/src/padding.c -static
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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void main(int argc, char *argv[])
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{
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FILE* fp;
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// argv[1] -> length
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// argv[2] -> data
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// argv[3] -> output file name
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char *unit;
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int length = strtod(argv[1], &unit);
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char data = strtod(argv[2], NULL);
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char *buf;
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printf("total %d %s, padding data %x, name %s\n", length, unit, data&0xFF, argv[3]);
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if(unit[0]==0) length*=1;
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else if(unit[0]=='K'||unit[0]=='k') length*=1024;
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else if(unit[0]=='M'||unit[0]=='m') length*=(1024*1024);
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else if(unit[0]=='G'||unit[0]=='g') length*=(1024*1024);
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else {
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printf("unit %s is Not valid\n", unit);
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return;
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}
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fp = fopen(argv[3], "r+b");
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if(!fp) return;
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buf = malloc(length);
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memset(buf, data, length);
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printf("Original size %zd\n", fread(buf, 1, length, fp));
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fseek(fp, 0, SEEK_SET);
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printf("Padding size %zd\n", fwrite(buf, 1, length, fp));
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free(buf);
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fclose(fp);
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}
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