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Add mandoc-manpage for cksum(1) and clean up code

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and mark it as done in README.
This commit is contained in:
FRIGN
2015-01-17 23:38:38 +01:00
committed by sin
parent b55de3d1a2
commit 43b8fa1a58
3 changed files with 59 additions and 43 deletions
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64
cksum.c
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@@ -7,14 +7,6 @@
#include "util.h"
static void cksum(FILE *, const char *);
static void
usage(void)
{
eprintf("usage: %s [files...]\n", argv0);
}
static const unsigned long crctab[] = { 0x00000000,
0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b,
0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6,
@@ -69,31 +61,6 @@ static const unsigned long crctab[] = { 0x00000000,
0xa2f33668, 0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4
};
int
main(int argc, char *argv[])
{
FILE *fp;
ARGBEGIN {
default:
usage();
} ARGEND;
if (argc == 0) {
cksum(stdin, NULL);
} else {
for (; argc > 0; argc--, argv++) {
if (!(fp = fopen(argv[0], "r"))) {
weprintf("fopen %s:", argv[0]);
continue;
}
cksum(fp, argv[0]);
fclose(fp);
}
}
return 0;
}
static void
cksum(FILE *fp, const char *s)
{
@@ -118,3 +85,34 @@ cksum(FILE *fp, const char *s)
printf(" %s", s);
putchar('\n');
}
static void
usage(void)
{
eprintf("usage: %s [files ...]\n", argv0);
}
int
main(int argc, char *argv[])
{
FILE *fp;
ARGBEGIN {
default:
usage();
} ARGEND;
if (argc == 0)
cksum(stdin, NULL);
else {
for (; argc > 0; argc--, argv++) {
if (!(fp = fopen(argv[0], "r"))) {
weprintf("fopen %s:", argv[0]);
continue;
}
cksum(fp, argv[0]);
fclose(fp);
}
}
return 0;
}