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authorLaurent Bercot <ska-skaware@skarnet.org>2023-06-01 03:46:48 +0000
committerLaurent Bercot <ska@appnovation.com>2023-06-01 03:46:48 +0000
commitd0b38944c50dab81755fca50a983a1bddefbfadf (patch)
tree8bab9da952d45c28e3f6dbed705c0f4c9aa78325 /src/libstddjb
parent96078d63fcd4acd96983a42abac5ab8604bc80ca (diff)
downloadskalibs-d0b38944c50dab81755fca50a983a1bddefbfadf.tar.xz
Refactor to add hiercopy_loose (for s6-l-i)
Signed-off-by: Laurent Bercot <ska@appnovation.com>
Diffstat (limited to 'src/libstddjb')
-rw-r--r--src/libstddjb/hiercopy.c2
-rw-r--r--src/libstddjb/hiercopy_internal.c88
-rw-r--r--src/libstddjb/hiercopy_loose.c9
-rw-r--r--src/libstddjb/hiercopy_loose_tmp.c8
-rw-r--r--src/libstddjb/hiercopy_tmp.c82
5 files changed, 107 insertions, 82 deletions
diff --git a/src/libstddjb/hiercopy.c b/src/libstddjb/hiercopy.c
index 3fc4d2f..53f9850 100644
--- a/src/libstddjb/hiercopy.c
+++ b/src/libstddjb/hiercopy.c
@@ -5,5 +5,5 @@
int hiercopy (char const *src, char const *dst)
{
- return hiercopy_tmp(src, dst, &satmp) ;
+ return hiercopy_internal(src, dst, &satmp, 0) ;
}
diff --git a/src/libstddjb/hiercopy_internal.c b/src/libstddjb/hiercopy_internal.c
new file mode 100644
index 0000000..c512463
--- /dev/null
+++ b/src/libstddjb/hiercopy_internal.c
@@ -0,0 +1,88 @@
+/* ISC license. */
+
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#include <skalibs/stralloc.h>
+#include <skalibs/direntry.h>
+#include <skalibs/djbunix.h>
+
+static int dircopy (char const *src, char const *dst, mode_t mode, stralloc *tmp, unsigned int options)
+{
+ size_t tmpbase = tmp->len ;
+ size_t maxlen = 0 ;
+ if (sals(src, tmp, &maxlen) == -1) return 0 ;
+
+ if (mkdir(dst, S_IRWXU) < 0)
+ {
+ struct stat st ;
+ if (errno != EEXIST) goto err ;
+ if (stat(dst, &st) < 0) goto err ;
+ if (!S_ISDIR(st.st_mode)) { errno = ENOTDIR ; goto err ; }
+ }
+ {
+ size_t srclen = strlen(src) ;
+ size_t dstlen = strlen(dst) ;
+ size_t i = tmpbase ;
+ char srcbuf[srclen + maxlen + 2] ;
+ char dstbuf[dstlen + maxlen + 2] ;
+ memcpy(srcbuf, src, srclen) ;
+ memcpy(dstbuf, dst, dstlen) ;
+ srcbuf[srclen] = '/' ;
+ dstbuf[dstlen] = '/' ;
+ while (i < tmp->len)
+ {
+ size_t n = strlen(tmp->s + i) + 1 ;
+ memcpy(srcbuf + srclen + 1, tmp->s + i, n) ;
+ memcpy(dstbuf + dstlen + 1, tmp->s + i, n) ;
+ i += n ;
+ hiercopy_internal(srcbuf, dstbuf, tmp, 0) ;
+ }
+ }
+ if (chmod(dst, mode) < 0 && !(options & 1)) goto err ;
+ tmp->len = tmpbase ;
+ return 1 ;
+err:
+ tmp->len = tmpbase ;
+ return 0 ;
+}
+
+int hiercopy_internal (char const *src, char const *dst, stralloc *tmp, unsigned int options)
+{
+ struct stat st ;
+ if (lstat(src, &st) < 0) return 0 ;
+ if (S_ISREG(st.st_mode))
+ {
+ if (!filecopy_unsafe(src, dst, st.st_mode)) return 0 ;
+ }
+ else if (S_ISDIR(st.st_mode))
+ {
+ if (!dircopy(src, dst, st.st_mode, tmp, options)) return 0 ;
+ }
+ else if (S_ISFIFO(st.st_mode))
+ {
+ if (mkfifo(dst, st.st_mode) < 0) return 0 ;
+ }
+ else if (S_ISLNK(st.st_mode))
+ {
+ size_t tmpbase = tmp->len ;
+ if (sareadlink(tmp, src) < 0) return 0 ;
+ if (!stralloc_0(tmp) || symlink(tmp->s + tmpbase, dst) < 0)
+ {
+ tmp->len = tmpbase ;
+ return 0 ;
+ }
+ tmp->len = tmpbase ;
+ }
+ else if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode) || S_ISSOCK(st.st_mode))
+ {
+ if (mknod(dst, st.st_mode, st.st_rdev) < 0) return 0 ;
+ }
+ else return (errno = ENOTSUP, 0) ;
+ lchown(dst, st.st_uid, st.st_gid) ;
+ if (!S_ISLNK(st.st_mode)) chmod(dst, st.st_mode) ;
+ return 1 ;
+}
diff --git a/src/libstddjb/hiercopy_loose.c b/src/libstddjb/hiercopy_loose.c
new file mode 100644
index 0000000..38e47b5
--- /dev/null
+++ b/src/libstddjb/hiercopy_loose.c
@@ -0,0 +1,9 @@
+/* ISC license. */
+
+#include <skalibs/skamisc.h>
+#include <skalibs/djbunix.h>
+
+int hiercopy_loose (char const *src, char const *dst)
+{
+ return hiercopy_internal(src, dst, &satmp, 1) ;
+}
diff --git a/src/libstddjb/hiercopy_loose_tmp.c b/src/libstddjb/hiercopy_loose_tmp.c
new file mode 100644
index 0000000..81eae4a
--- /dev/null
+++ b/src/libstddjb/hiercopy_loose_tmp.c
@@ -0,0 +1,8 @@
+/* ISC license. */
+
+#include <skalibs/djbunix.h>
+
+int hiercopy_loose_tmp (char const *src, char const *dst, stralloc *tmp)
+{
+ return hiercopy_internal(src, dst, tmp, 1) ;
+}
diff --git a/src/libstddjb/hiercopy_tmp.c b/src/libstddjb/hiercopy_tmp.c
index 3e147be..c820f84 100644
--- a/src/libstddjb/hiercopy_tmp.c
+++ b/src/libstddjb/hiercopy_tmp.c
@@ -1,88 +1,8 @@
/* ISC license. */
-#include <string.h>
-#include <unistd.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <fcntl.h>
-
-#include <skalibs/stralloc.h>
-#include <skalibs/direntry.h>
#include <skalibs/djbunix.h>
-static int dircopy (char const *src, char const *dst, mode_t mode, stralloc *tmp)
-{
- size_t tmpbase = tmp->len ;
- size_t maxlen = 0 ;
- if (sals(src, tmp, &maxlen) == -1) return 0 ;
-
- if (mkdir(dst, S_IRWXU) < 0)
- {
- struct stat st ;
- if (errno != EEXIST) goto err ;
- if (stat(dst, &st) < 0) goto err ;
- if (!S_ISDIR(st.st_mode)) { errno = ENOTDIR ; goto err ; }
- }
- {
- size_t srclen = strlen(src) ;
- size_t dstlen = strlen(dst) ;
- size_t i = tmpbase ;
- char srcbuf[srclen + maxlen + 2] ;
- char dstbuf[dstlen + maxlen + 2] ;
- memcpy(srcbuf, src, srclen) ;
- memcpy(dstbuf, dst, dstlen) ;
- srcbuf[srclen] = '/' ;
- dstbuf[dstlen] = '/' ;
- while (i < tmp->len)
- {
- size_t n = strlen(tmp->s + i) + 1 ;
- memcpy(srcbuf + srclen + 1, tmp->s + i, n) ;
- memcpy(dstbuf + dstlen + 1, tmp->s + i, n) ;
- i += n ;
- hiercopy_tmp(srcbuf, dstbuf, tmp) ;
- }
- }
- if (chmod(dst, mode) < 0) goto err ;
- tmp->len = tmpbase ;
- return 1 ;
-err:
- tmp->len = tmpbase ;
- return 0 ;
-}
-
int hiercopy_tmp (char const *src, char const *dst, stralloc *tmp)
{
- struct stat st ;
- if (lstat(src, &st) < 0) return 0 ;
- if (S_ISREG(st.st_mode))
- {
- if (!filecopy_unsafe(src, dst, st.st_mode)) return 0 ;
- }
- else if (S_ISDIR(st.st_mode))
- {
- if (!dircopy(src, dst, st.st_mode, tmp)) return 0 ;
- }
- else if (S_ISFIFO(st.st_mode))
- {
- if (mkfifo(dst, st.st_mode) < 0) return 0 ;
- }
- else if (S_ISLNK(st.st_mode))
- {
- size_t tmpbase = tmp->len ;
- if (sareadlink(tmp, src) < 0) return 0 ;
- if (!stralloc_0(tmp) || symlink(tmp->s + tmpbase, dst) < 0)
- {
- tmp->len = tmpbase ;
- return 0 ;
- }
- tmp->len = tmpbase ;
- }
- else if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode) || S_ISSOCK(st.st_mode))
- {
- if (mknod(dst, st.st_mode, st.st_rdev) < 0) return 0 ;
- }
- else return (errno = ENOTSUP, 0) ;
- lchown(dst, st.st_uid, st.st_gid) ;
- if (!S_ISLNK(st.st_mode)) chmod(dst, st.st_mode) ;
- return 1 ;
+ return hiercopy_internal(src, dst, tmp, 0) ;
}