rename utils to posix

[pdutils] / utils / cmp / cmp.c

diff --git a/utils/cmp/cmp.c b/utils/cmp/cmp.c
deleted file mode 100644 (file)
index a1c0572..0000000
--- a/utils/cmp/cmp.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
- * cmp.c - compare two files
- *
- * Version: 2008-1.01
- * Build:   c89 -o cmp cmp.c
- * Source:  <http://pdcore.sourceforge.net/>
- * Spec:    <http://www.opengroup.org/onlinepubs/9699919799/utilities/cmp.html>
- *
- * This is free and unencumbered software released into the public domain,
- * provided "as is", without warranty of any kind, express or implied. See the
- * file UNLICENSE and the website <http://unlicense.org> for further details.
- */
-
-
-#define _POSIX_SOURCE
-
-#include <errno.h>
-#include <fcntl.h>
-#include <locale.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#define USAGE      "usage: cmp [-l|-s] file1 file2\n"
-#define ELSMUTEXCL "Options -l and -s are mutually exclusive"
-#define EBOTHSTDIN "Input files must be different"
-#define BUFSIZE    4096
-#define SYSERR     1
-#define APPERR     0
-
-static int cmpfiles(int fd1, char *fn1, int fd2, char *fn2);
-static void fatal(int errtype, char *s);
-
-static int optl, opts;
-
-
-int main(int argc, char **argv)
-{
-    extern int opterr, optind;
-    int c, exitstatus = 0;
-    int fd1, fd2;
-    char *fn1, *fn2;
-
-    setlocale(LC_ALL, "");
-    opterr = 0;
-
-    while ((c = getopt(argc, argv, "ls")) != -1)
-        switch (c)
-        {
-        case 'l':
-            optl = 1;
-            break;
-        case 's':
-            opts = 1;
-            break;
-        default:
-            fprintf(stderr, USAGE);
-            exit(2);
-        }
-
-    argc -= optind;
-    argv += optind;
-
-    if (optl && opts)
-        fatal(APPERR, ELSMUTEXCL);
-
-    if (argc != 2)
-        fatal(APPERR, USAGE);
-
-    fn1 = argv[0];
-    if (strcmp(fn1, "-") == 0)
-        fd1 = STDIN_FILENO;
-    else
-        if ((fd1 = open(fn1, O_RDONLY)) == -1)
-            fatal(SYSERR, fn1);
-
-    fn2 = argv[1];
-    if (strcmp(fn2, "-") == 0)
-        fd2 = STDIN_FILENO;
-    else
-        if ((fd2 = open(fn2, O_RDONLY)) == -1)
-            fatal(SYSERR, fn2);
-
-    if (fd1 == STDIN_FILENO && fd2 == STDIN_FILENO)
-        fatal(APPERR, EBOTHSTDIN);
-
-    exitstatus = cmpfiles(fd1, fn1, fd2, fn2);
-
-    if (fd1 != STDIN_FILENO && (close(fd1) == -1))
-        fatal(SYSERR, fn1);
-
-    if (fd2 != STDIN_FILENO && (close(fd2) == -1))
-        fatal(SYSERR, fn2);
-
-    return(exitstatus);
-}
-
-
-int cmpfiles(int fd1, char *fn1, int fd2, char *fn2)
-{
-    unsigned char buf1[BUFSIZE], buf2[BUFSIZE];
-    ssize_t n1, n2, byte = 1, line = 1;
-    int cnt, i, eof = 0, differ = 0, shorter = 0;
-
-    while (! eof)
-    {
-        if ((n1 = read(fd1, buf1, BUFSIZE)) == -1)
-            fatal(SYSERR, fn1);
-
-        if ((n2 = read(fd2, buf2, BUFSIZE)) == -1)
-            fatal(SYSERR, fn2);
-
-        if (n1 != BUFSIZE || n2 != BUFSIZE)
-        {
-            eof = 1;
-            if (n1 != n2)
-                shorter = (n1 < n2) ? 1 : 2;
-        }
-
-        cnt = (n1 < n2) ? n1 : n2;
-        for (i = 0; i < cnt; i++)
-        {
-            if (buf1[i] != buf2[i])
-            {
-                if (! differ && ! optl && ! opts)
-                {
-                    printf("%s %s differ: char %d, line %d\n", fn1, fn2, byte, line);
-                    return(1);  /* only need to report first mismatch */
-                }
-
-                differ = 1;
-
-                if (optl)
-                    printf("%d %o %o\n", byte, buf1[i], buf2[i]);
-            }
-
-            byte++;
-            if (buf1[i] == '\n')
-                line++;
-        }
-    }
-
-    if (shorter && (optl || (! opts && ! differ)))
-    {
-        differ = 1;
-        fprintf(stderr, "cmp: EOF on %s\n", (shorter == 1 ? fn1 : fn2));
-    }
-
-    return(differ || shorter);
-}
-
-
-void fatal(int errtype, char *s)
-{
-    if (errtype == SYSERR)
-        fprintf(stderr, "cmp: %s: %s\n", s, strerror(errno));
-    else
-        fprintf(stderr, "cmp: %s\n", s);
-
-    exit(2);
-}