124 lines
2.5 KiB
C
124 lines
2.5 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <dirent.h>
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#include <errno.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <limits.h>
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#include <utime.h>
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#include "../fs.h"
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#include "../text.h"
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#include "../util.h"
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bool cp_aflag = false;
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bool cp_dflag = false;
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bool cp_fflag = false;
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bool cp_pflag = false;
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bool cp_rflag = false;
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int
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cp(const char *s1, const char *s2)
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{
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FILE *f1, *f2;
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char *ns1, *ns2;
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long size1, size2;
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struct dirent *d;
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struct stat st;
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struct utimbuf ut;
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char buf[PATH_MAX];
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DIR *dp;
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int r;
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if(cp_dflag == true)
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r = lstat(s1, &st);
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else
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r = stat(s1, &st);
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if(r == 0) {
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if(cp_dflag == true && S_ISLNK(st.st_mode)) {
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if(cp_fflag == true)
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remove(s2);
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if(readlink(s1, buf, sizeof(buf) - 1) >= 0)
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symlink(buf, s2);
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/* preserve owner ? */
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if(cp_aflag == true || cp_pflag == true) {
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if(lchown(s2, st.st_uid, st.st_gid) == -1)
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weprintf("cp: can't preserve ownership of '%s':", s2);
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}
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return 0;
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}
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if(S_ISDIR(st.st_mode)) {
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if (!cp_rflag)
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eprintf("%s: is a directory\n", s1);
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if(!(dp = opendir(s1)))
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eprintf("opendir %s:", s1);
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if (mkdir(s2, st.st_mode) == -1 && errno != EEXIST)
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eprintf("mkdir %s:", s2);
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apathmax(&ns1, &size1);
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apathmax(&ns2, &size2);
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while((d = readdir(dp))) {
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if(strcmp(d->d_name, ".")
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&& strcmp(d->d_name, "..")) {
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r = snprintf(ns1, size1, "%s/%s", s1, d->d_name);
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if(r >= size1 || r < 0) {
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eprintf("%s/%s: filename too long\n",
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s1, d->d_name);
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}
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r = snprintf(ns2, size2, "%s/%s", s2, d->d_name);
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if(r >= size2 || r < 0) {
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eprintf("%s/%s: filename too long\n",
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s2, d->d_name);
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}
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fnck(ns1, ns2, cp);
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}
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}
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closedir(dp);
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free(ns1);
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free(ns2);
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goto preserve;
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return 0;
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}
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}
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if(!(f1 = fopen(s1, "r")))
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eprintf("fopen %s:", s1);
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if(!(f2 = fopen(s2, "w"))) {
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if (cp_fflag == true) {
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unlink(s2);
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if (!(f2 = fopen(s2, "w")))
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eprintf("fopen %s:", s2);
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} else {
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eprintf("fopen %s:", s2);
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}
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}
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concat(f1, s1, f2, s2);
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fchmod(fileno(f2), st.st_mode);
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fclose(f2);
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fclose(f1);
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preserve:
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if(cp_aflag == true || cp_pflag == true) {
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/* timestamp */
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ut.actime = st.st_atime;
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ut.modtime = st.st_mtime;
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utime(s2, &ut);
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/* preserve owner ? */
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if(chown(s2, st.st_uid, st.st_gid) == -1)
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weprintf("cp: can't preserve ownership of '%s':", s2);
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}
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return 0;
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}
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