/* $OpenBSD: paste.c,v 1.7 1999/08/24 18:49:45 aaron Exp $ */ /* * Copyright (c) 1989 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Adam S. Moskowitz of Menlo Consulting. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint char copyright[] = "@(#) Copyright (c) 1989 The Regents of the University of California.\n\ All rights reserved.\n"; #endif /* not lint */ #ifndef lint /*static char sccsid[] = "from: @(#)paste.c 5.7 (Berkeley) 10/30/90";*/ static char rcsid[] = "$OpenBSD: paste.c,v 1.7 1999/08/24 18:49:45 aaron Exp $"; #endif /* not lint */ #include #include #include #include #include #include #include char *delim; int delimcnt; int tr __P((char *)); void usage __P((void)); void parallel __P((char **)); void sequential __P((char **)); int main(argc, argv) int argc; char **argv; { extern char *optarg; extern int optind; int ch, seq; seq = 0; while ((ch = getopt(argc, argv, "d:s")) != -1) switch(ch) { case 'd': delimcnt = tr(delim = optarg); break; case 's': seq = 1; break; case '?': default: usage(); } argc -= optind; argv += optind; if (!delim) { delimcnt = 1; delim = "\t"; } if (seq) sequential(argv); else parallel(argv); exit(0); } typedef struct _list { struct _list *next; FILE *fp; int cnt; char *name; } LIST; void parallel(argv) char **argv; { register LIST *lp; register int cnt; register char ch, *p; LIST *head, *tmp; int opencnt, output; char *buf, *lbuf; size_t len; for (cnt = 0, head = NULL; (p = *argv); ++argv, ++cnt) { if (!(lp = (LIST *)malloc((u_int)sizeof(LIST)))) { (void)fprintf(stderr, "paste: %s.\n", strerror(ENOMEM)); exit(1); } if (p[0] == '-' && !p[1]) lp->fp = stdin; else if (!(lp->fp = fopen(p, "r"))) { (void)fprintf(stderr, "paste: %s: %s.\n", p, strerror(errno)); exit(1); } lp->next = NULL; lp->cnt = cnt; lp->name = p; if (!head) head = tmp = lp; else { tmp->next = lp; tmp = lp; } } for (opencnt = cnt; opencnt;) { lbuf = NULL; for (output = 0, lp = head; lp; lp = lp->next) { if (!lp->fp) { if (output && lp->cnt && (ch = delim[(lp->cnt - 1) % delimcnt])) putchar(ch); continue; } if (!(buf = fgetln(lp->fp, &len))) { if (!--opencnt) break; lp->fp = NULL; if (output && lp->cnt && (ch = delim[(lp->cnt - 1) % delimcnt])) putchar(ch); continue; } if (*(buf + len - 1) == '\n') *(buf + len - 1) = '\0'; else { lbuf = (char *)malloc(len + 1); memcpy(lbuf, buf, len); lbuf[len] = '\0'; buf = lbuf; } /* * make sure that we don't print any delimiters * unless there's a non-empty file. */ if (!output) { output = 1; for (cnt = 0; cnt < lp->cnt; ++cnt) if ((ch = delim[cnt % delimcnt])) putchar(ch); } else if ((ch = delim[(lp->cnt - 1) % delimcnt])) putchar(ch); (void)printf("%s", buf); if (lbuf != NULL) { free(lbuf); lbuf = NULL; } } if (output) putchar('\n'); } } void sequential(argv) char **argv; { register FILE *fp; register int cnt; register char ch, *p, *dp; char *buf, *lbuf; size_t len; lbuf = NULL; for (; (p = *argv); ++argv) { if (p[0] == '-' && !p[1]) fp = stdin; else if (!(fp = fopen(p, "r"))) { (void)fprintf(stderr, "paste: %s: %s.\n", p, strerror(errno)); continue; } if ((buf = fgetln(fp, &len))) { for (cnt = 0, dp = delim;;) { if (*(buf + len - 1) == '\n') *(buf + len - 1) = '\0'; else { lbuf = (char *)malloc(len + 1); memcpy(lbuf, buf, len); lbuf[len] = '\0'; buf = lbuf; } (void)printf("%s", buf); if (!(buf = fgetln(fp, &len))) break; if ((ch = *dp++)) putchar(ch); if (++cnt == delimcnt) { dp = delim; cnt = 0; } } putchar('\n'); } if (fp != stdin) (void)fclose(fp); if (lbuf != NULL) { free(lbuf); lbuf = NULL; } } } int tr(arg) char *arg; { register int cnt; register char ch, *p; for (p = arg, cnt = 0; (ch = *p++); ++arg, ++cnt) if (ch == '\\') switch(ch = *p++) { case 'n': *arg = '\n'; break; case 't': *arg = '\t'; break; case '0': *arg = '\0'; break; default: *arg = ch; break; } else *arg = ch; if (!cnt) { (void)fprintf(stderr, "paste: no delimiters specified.\n"); exit(1); } return(cnt); } void usage() { (void)fprintf(stderr, "paste: [-s] [-d delimiters] file ...\n"); exit(1); }