79 lines
1.5 KiB
C
79 lines
1.5 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "util.h"
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static void uuencode(FILE *, const char *, const char *);
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static void
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usage(void)
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{
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eprintf("usage: %s [file] name\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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FILE *fp;
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ARGBEGIN {
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case 'm':
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eprintf("-m not implemented\n");
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default:
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usage();
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} ARGEND;
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if (argc == 0 || argc > 2)
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usage();
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if (argc == 1) {
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uuencode(stdin, argv[0], "<stdin>");
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} else {
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if (!(fp = fopen(argv[0], "r")))
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eprintf("fopen %s:", argv[0]);
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uuencode(fp, argv[1], argv[0]);
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fclose(fp);
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}
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return 0;
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}
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static void
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uuencode(FILE *fp, const char *name, const char *s)
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{
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struct stat st;
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unsigned char buf[45], *p;
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ssize_t n;
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int ch;
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if (fstat(fileno(fp), &st) < 0)
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eprintf("fstat %s:", s);
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printf("begin %o %s\n", st.st_mode & 0777, name);
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while ((n = fread(buf, 1, sizeof(buf), fp))) {
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ch = ' ' + (n & 0x3f);
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putchar(ch == ' ' ? '`' : ch);
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for (p = buf; n > 0; n -= 3, p += 3) {
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if (n < 3) {
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p[2] = '\0';
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if (n < 2)
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p[1] = '\0';
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}
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ch = ' ' + ((p[0] >> 2) & 0x3f);
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putchar(ch == ' ' ? '`' : ch);
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ch = ' ' + (((p[0] << 4) | ((p[1] >> 4) & 0xf)) & 0x3f);
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putchar(ch == ' ' ? '`' : ch);
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ch = ' ' + (((p[1] << 2) | ((p[2] >> 6) & 0x3)) & 0x3f);
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putchar(ch == ' ' ? '`' : ch);
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ch = ' ' + (p[2] & 0x3f);
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putchar(ch == ' ' ? '`' : ch);
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}
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putchar('\n');
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}
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if (ferror(fp))
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eprintf("'%s' read error:", s);
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printf("%c\nend\n", '`');
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}
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