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- /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
- #include <stdio.h>
- #include <fcntl.h>
- #include <unistd.h>
-
- #ifndef O_BINARY
- #define O_BINARY 0
- #endif
-
- #define BUFS 16384
-
- static void
- usage(void)
- {
- fprintf(stderr,"Usage: merge [inputBase] [outputFile]\n");
- fprintf(stderr, "reads <inputBase>.000, <inputBase>.001, etc\n");
- exit(1);
- }
-
- static int
- p_open(char *ob, int p)
- {
- char partname[1024];
- sprintf(partname, "%s.%03d", ob, p);
- return open(partname, O_RDONLY|O_BINARY);
- }
-
- int
- main(int argc, char **argv)
- {
- char buf[BUFS];
- long r;
- int partnum;
- int outf, f;
-
- if (argc != 3)
- usage();
-
- outf = open(argv[2], O_WRONLY|O_CREAT|O_TRUNC|O_BINARY, 0666);
- if (outf < 0)
- usage();
-
- partnum = 0;
- f = p_open(argv[1], partnum);
- while (1)
- {
- r = read(f, buf, BUFS);
-
- if (r <= 0)
- {
- close(f);
- partnum++;
- f = p_open(argv[1], partnum);
-
- if (f < 0)
- {
- close(outf);
- exit(0);
- }
- }
-
- write(outf, buf, r);
- }
- }
-