wmii/lib/libbio/bcat.c

47 lines
725 B
C

#include <fmt.h>
#include "bio.h"
Biobuf bout;
void
bcat(Biobuf *b, char *name)
{
char buf[1000];
int n;
while((n = Bread(b, buf, sizeof buf)) > 0){
if(Bwrite(&bout, buf, n) < 0)
fprint(2, "writing during %s: %r\n", name);
}
if(n < 0)
fprint(2, "reading %s: %r\n", name);
}
int
main(int argc, char **argv)
{
int i;
Biobuf b, *bp;
Fmt fmt;
Binit(&bout, 1, O_WRONLY);
Bfmtinit(&fmt, &bout);
fmtprint(&fmt, "hello, world\n");
Bfmtflush(&fmt);
if(argc == 1){
Binit(&b, 0, O_RDONLY);
bcat(&b, "<stdin>");
}else{
for(i=1; i<argc; i++){
if((bp = Bopen(argv[i], O_RDONLY)) == 0){
fprint(2, "Bopen %s: %r\n", argv[i]);
continue;
}
bcat(bp, argv[i]);
Bterm(bp);
}
}
exit(0);
}