mirror of https://git.qorg11.net/k9core.git
40 lines
824 B
C
40 lines
824 B
C
#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <getopt.h>
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#include <errno.h>
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#include <sys/stat.h>
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int
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fill_with_zeroes(const char *filename)
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{
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int fd = open(filename,O_WRONLY);
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if(fd == -1)
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{
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printf("Error reading file: %i = %s\n",errno,strerror(errno));
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return 1;
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}
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struct stat stat_struct; /* What name should i use? */
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stat(filename,&stat_struct);
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long int bytes_to_write = stat_struct.st_size;
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char *buf = NULL;
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buf = malloc(bytes_to_write);
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for(int i = 0; i < bytes_to_write; i++)
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write(fd,"\0\0\0\0\0",bytes_to_write + 2048);
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free(buf);
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return 0;
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}
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int
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main(int argc, char *argv[])
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{
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int c = getopt(argc, argv, "u"); /* TODO: add -f */
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fill_with_zeroes(argv[1]);
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if(c == 'u')
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remove(argv[1]);
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}
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