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grub2/SOURCES/0240-blscfg-sort-everything...

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Mon, 15 Oct 2018 15:08:33 -0400
Subject: [PATCH] blscfg: sort everything with rpm *package* comparison
This makes comparisons use the n-v-r tuple, and compare name with name,
version with version, and release with release.
Related: rhbz#1638103
Signed-off-by: Peter Jones <pjones@redhat.com>
---
grub-core/commands/blscfg.c | 118 ++++++++++++++++++++++++++++++++++++++++----
1 file changed, 108 insertions(+), 10 deletions(-)
diff --git a/grub-core/commands/blscfg.c b/grub-core/commands/blscfg.c
index 3847572da..347128c9d 100644
--- a/grub-core/commands/blscfg.c
+++ b/grub-core/commands/blscfg.c
@@ -206,7 +206,7 @@ static int vercmp(const char * a, const char * b)
int isnum;
int ret = 0;
- grub_dprintf("blscfg", "%s got here\n", __func__);
+ grub_dprintf("blscfg", "%s got here\n", __func__);
if (!grub_strcmp(a, b))
return 0;
@@ -315,6 +315,81 @@ finish:
return ret;
}
+/* returns name/version/release */
+/* NULL string pointer returned if nothing found */
+static void
+split_package_string (char *package_string, char **name,
+ char **version, char **release)
+{
+ char *package_version, *package_release;
+
+ /* Release */
+ package_release = grub_strrchr (package_string, '-');
+
+ if (package_release != NULL)
+ *package_release++ = '\0';
+
+ *release = package_release;
+
+ if (name == NULL)
+ {
+ *version = package_string;
+ }
+ else
+ {
+ /* Version */
+ package_version = grub_strrchr(package_string, '-');
+
+ if (package_version != NULL)
+ *package_version++ = '\0';
+
+ *version = package_version;
+ /* Name */
+ *name = package_string;
+ }
+
+ /* Bubble up non-null values from release to name */
+ if (name != NULL && *name == NULL)
+ {
+ *name = (*version == NULL ? *release : *version);
+ *version = *release;
+ *release = NULL;
+ }
+ if (*version == NULL)
+ {
+ *version = *release;
+ *release = NULL;
+ }
+}
+
+static int
+split_cmp(char *nvr0, char *nvr1, int has_name)
+{
+ int ret = 0;
+ char *name0, *version0, *release0;
+ char *name1, *version1, *release1;
+
+ split_package_string(nvr0, has_name ? &name0 : NULL, &version0, &release0);
+ split_package_string(nvr1, has_name ? &name1 : NULL, &version1, &release1);
+
+ if (has_name)
+ {
+ ret = vercmp(name0 == NULL ? "" : name0,
+ name1 == NULL ? "" : name1);
+ if (ret != 0)
+ return ret;
+ }
+
+ ret = vercmp(version0 == NULL ? "" : version0,
+ version1 == NULL ? "" : version1);
+ if (ret != 0)
+ return ret;
+
+ ret = vercmp(release0 == NULL ? "" : release0,
+ release1 == NULL ? "" : release1);
+ return ret;
+}
+
/* return 1: p0 is newer than p1 */
/* 0: p0 and p1 are the same version */
/* -1: p1 is newer than p0 */
@@ -323,18 +398,41 @@ static int bls_cmp(const void *p0, const void *p1, void *state)
struct bls_entry * e0 = *(struct bls_entry **)p0;
struct bls_entry * e1 = *(struct bls_entry **)p1;
bool use_version = *(bool *)state;
- const char *v0, *v1;
- int r;
+ char *v0, *v1;
+ char *id0, *id1;
+ int l, r;
- if (use_version) {
- v0 = bls_get_val(e0, "version", NULL);
- v1 = bls_get_val(e1, "version", NULL);
+ if (use_version)
+ {
+ v0 = grub_strdup(bls_get_val(e0, "version", NULL));
+ v1 = grub_strdup(bls_get_val(e1, "version", NULL));
- if ((r = vercmp(v0, v1)) != 0)
- return r;
- }
+ r = split_cmp(v0, v1, 0);
- return vercmp(e0->filename, e1->filename);
+ grub_free(v0);
+ grub_free(v1);
+
+ if (r != 0)
+ return r;
+ }
+
+ id0 = grub_strdup(e0->filename);
+ id1 = grub_strdup(e1->filename);
+
+ l = grub_strlen(id0);
+ if (l > 5 && grub_strcmp(id0 + l - 5, ".conf"))
+ id0[l-5] = '\0';
+
+ l = grub_strlen(id1);
+ if (l > 5 && grub_strcmp(id1 + l - 5, ".conf"))
+ id1[l-5] = '\0';
+
+ r = split_cmp(id0, id1, 1);
+
+ grub_free(id0);
+ grub_free(id1);
+
+ return r;
}
struct read_entry_info {