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cp: add -a, -d, -p

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This commit is contained in:
Hiltjo Posthuma
2014-07-09 21:28:43 +00:00
committed by sin
parent 8e8d8ff242
commit 8b3a9c1971
4 changed files with 97 additions and 30 deletions
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97
util/cp.c
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@@ -7,12 +7,18 @@
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <limits.h>
#include <utime.h>
#include "../fs.h"
#include "../text.h"
#include "../util.h"
bool cp_aflag = false;
bool cp_dflag = false;
bool cp_fflag = false;
bool cp_pflag = false;
bool cp_rflag = false;
int
@@ -23,42 +29,65 @@ cp(const char *s1, const char *s2)
long size1, size2;
struct dirent *d;
struct stat st;
struct utimbuf ut;
char buf[PATH_MAX];
DIR *dp;
int r;
if (stat(s1, &st) == 0 && S_ISDIR(st.st_mode)) {
if (!cp_rflag)
eprintf("%s: is a directory\n", s1);
if(cp_dflag == true)
r = lstat(s1, &st);
else
r = stat(s1, &st);
if(!(dp = opendir(s1)))
eprintf("opendir %s:", s1);
if(r == 0) {
if(cp_dflag == true && S_ISLNK(st.st_mode)) {
if(cp_fflag == true)
remove(s2);
if(readlink(s1, buf, sizeof(buf) - 1) >= 0)
symlink(buf, s2);
if (mkdir(s2, st.st_mode) == -1 && errno != EEXIST)
eprintf("mkdir %s:", s2);
apathmax(&ns1, &size1);
apathmax(&ns2, &size2);
while((d = readdir(dp))) {
if(strcmp(d->d_name, ".")
&& strcmp(d->d_name, "..")) {
r = snprintf(ns1, size1, "%s/%s", s1, d->d_name);
if(r >= size1 || r < 0) {
eprintf("%s/%s: filename too long\n",
s1, d->d_name);
}
r = snprintf(ns2, size2, "%s/%s", s2, d->d_name);
if(r >= size2 || r < 0) {
eprintf("%s/%s: filename too long\n",
s2, d->d_name);
}
fnck(ns1, ns2, cp);
/* preserve owner ? */
if(cp_aflag == true || cp_pflag == true) {
if(lchown(s2, st.st_uid, st.st_gid) == -1)
weprintf("cp: can't preserve ownership of '%s':", s2);
}
return 0;
}
if(S_ISDIR(st.st_mode)) {
if (!cp_rflag)
eprintf("%s: is a directory\n", s1);
closedir(dp);
free(ns1);
free(ns2);
return 0;
if(!(dp = opendir(s1)))
eprintf("opendir %s:", s1);
if (mkdir(s2, st.st_mode) == -1 && errno != EEXIST)
eprintf("mkdir %s:", s2);
apathmax(&ns1, &size1);
apathmax(&ns2, &size2);
while((d = readdir(dp))) {
if(strcmp(d->d_name, ".")
&& strcmp(d->d_name, "..")) {
r = snprintf(ns1, size1, "%s/%s", s1, d->d_name);
if(r >= size1 || r < 0) {
eprintf("%s/%s: filename too long\n",
s1, d->d_name);
}
r = snprintf(ns2, size2, "%s/%s", s2, d->d_name);
if(r >= size2 || r < 0) {
eprintf("%s/%s: filename too long\n",
s2, d->d_name);
}
fnck(ns1, ns2, cp);
}
}
closedir(dp);
free(ns1);
free(ns2);
goto preserve;
return 0;
}
}
if(!(f1 = fopen(s1, "r")))
eprintf("fopen %s:", s1);
@@ -78,5 +107,17 @@ cp(const char *s1, const char *s2)
fclose(f2);
fclose(f1);
preserve:
if(cp_aflag == true || cp_pflag == true) {
/* timestamp */
ut.actime = st.st_atime;
ut.modtime = st.st_mtime;
utime(s2, &ut);
/* preserve owner ? */
if(chown(s2, st.st_uid, st.st_gid) == -1)
weprintf("cp: can't preserve ownership of '%s':", s2);
}
return 0;
}