54 lines
942 B
C
54 lines
942 B
C
/* See LICENSE file for copyright and license details. */
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#include <signal.h>
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#include <stdio.h>
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#include "util.h"
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static void
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usage(void)
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{
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eprintf("usage: %s [-ai] [file...]\n", argv0);
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}
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int
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main(int argc, char *argv[])
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{
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int aflag = 0, iflag = 0;
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char buf[BUFSIZ];
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int i, nfps;
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size_t n;
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FILE **fps = NULL;
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ARGBEGIN {
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case 'a':
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aflag = 1;
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break;
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case 'i':
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iflag = 1;
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break;
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default:
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usage();
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} ARGEND;
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if (iflag && signal(SIGINT, SIG_IGN) == SIG_ERR)
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eprintf("signal:");
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nfps = argc + 1;
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fps = ecalloc(nfps, sizeof *fps);
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for (i = 0; argc > 0; argc--, argv++, i++)
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if (!(fps[i] = fopen(*argv, aflag ? "a" : "w")))
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eprintf("fopen %s:", *argv);
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fps[i] = stdout;
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while ((n = fread(buf, 1, sizeof buf, stdin)) > 0) {
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for (i = 0; i < nfps; i++) {
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if (fwrite(buf, 1, n, fps[i]) != n)
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eprintf("%s: write error:", buf);
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}
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}
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if (ferror(stdin))
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eprintf("<stdin>: read error:");
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return 0;
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}
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