Blob
1 #include <fmt.h>2 #include "bio.h"4 Biobuf bout;6 void7 bcat(Biobuf *b, char *name)8 {9 char buf[1000];10 int n;12 while((n = Bread(b, buf, sizeof buf)) > 0){13 if(Bwrite(&bout, buf, n) < 0)14 fprint(2, "writing during %s: %r\n", name);15 }16 if(n < 0)17 fprint(2, "reading %s: %r\n", name);18 }20 int21 main(int argc, char **argv)22 {23 int i;24 Biobuf b, *bp;26 Binit(&bout, 1, O_WRONLY);28 if(argc == 1){29 Binit(&b, 0, O_RDONLY);30 bcat(&b, "<stdin>");31 }else{32 for(i=1; i<argc; i++){33 if((bp = Bopen(argv[i], O_RDONLY)) == 0){34 fprint(2, "Bopen %s: %r\n", argv[i]);35 continue;36 }37 bcat(bp, argv[i]);38 Bterm(bp);39 }40 }41 exit(0);42 }