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termux-packages/packages/util-linux/versionsort.patch
Henrik Grimler bbe42fa887
enhance(main/util-linux): build libmount and {lib,}fdisk
Put libmount library in subpackage libmount, mount utilities in
subpackage mount-utils, libfdisk in subpackage libfdisk, and fdisk
utilities in subpackage fdisk.

On my aarch64 device, /system/bin/mount is unable to handle logical
volumes (tries to access the non-existing /etc/fstab and errors), so
lets add our own libmount package.

Enabling libmount also enables the lsblk utility, which we put in
blk-utils.
2022-12-28 09:12:35 +01:00

46 lines
1.3 KiB
Diff

--- ../libmount-src-tab_parse.c.orig 2022-08-08 09:25:50.094443439 +0200
+++ ./libmount/src/tab_parse.c 2022-08-08 12:55:36.856303277 +0200
@@ -835,6 +835,42 @@
return 1;
}
+int strverscmp(const char *l0, const char *r0)
+{
+ const unsigned char *l = (const void *)l0;
+ const unsigned char *r = (const void *)r0;
+ size_t i, dp, j;
+ int z = 1;
+
+ /* Find maximal matching prefix and track its maximal digit
+ * suffix and whether those digits are all zeros. */
+ for (dp=i=0; l[i]==r[i]; i++) {
+ int c = l[i];
+ if (!c) return 0;
+ if (!isdigit(c)) dp=i+1, z=1;
+ else if (c!='0') z=0;
+ }
+
+ if (l[dp]!='0' && r[dp]!='0') {
+ /* If we're not looking at a digit sequence that began
+ * with a zero, longest digit string is greater. */
+ for (j=i; isdigit(l[j]); j++)
+ if (!isdigit(r[j])) return 1;
+ if (isdigit(r[j])) return -1;
+ } else if (z && dp<i && (isdigit(l[i]) || isdigit(r[i]))) {
+ /* Otherwise, if common prefix of digit sequence is
+ * all zeros, digits order less than non-digits. */
+ return (unsigned char)(l[i]-'0') - (unsigned char)(r[i]-'0');
+ }
+
+ return l[i] - r[i];
+}
+
+static int versionsort(const struct dirent **a, const struct dirent **b)
+{
+ return strverscmp((*a)->d_name, (*b)->d_name);
+}
+
#ifdef HAVE_SCANDIRAT
static int __mnt_table_parse_dir(struct libmnt_table *tb, const char *dirname)
{