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#include <fcntl.h>
#include <stdio.h>
main(int argc, char **argv)
{
int fd, loop;
char ch;
char breakcnt = 0;
if (argc != 2) {
fprintf(stderr, "This program writes to stdout, so to be useful,\n\tit should be redirected (e.g no13 bla > bla.dat)\nusage: %s <filename>\n", argv[0]);
exit(1);
}
fd = open(argv[1], O_RDONLY);
while (read(fd, &ch, 1) == 1) {
if (ch == 0x0d) { // CR
breakcnt++;
continue;
}
if (ch == 0x1a) // Ctrl-Z
continue;
if (ch != 0x0a) { // LF
if (breakcnt > 1) {
for (loop = breakcnt; loop > 0; loop--)
putchar(0x0d);
putchar(0x0a);
}
breakcnt=0;
}
putchar(ch);
}
close(fd);
}
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