libalpm/package.c : add _alpm_pkgname_pkg_cmp function.

_alpm_pkgname_pkg_cmp(pkgname, pkg) returns true iff pkg's name is pkgname.
This is useful if you want to remove a package from pmpkg_t* list, and you
want to search for package name.

This allows cleaning the -Ru code a bit, by removing the need of a dummy
pkg.

Signed-off-by: Chantry Xavier <shiningxc@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/libalpm/package.c b/lib/libalpm/package.c
index 2bcf7453..b66fd85c 100644
--- a/lib/libalpm/package.c
+++ b/lib/libalpm/package.c
@@ -895,6 +895,12 @@ int _alpm_pkg_cmp(const void *p1, const void *p2)
 	return(strcmp(alpm_pkg_get_name(pk1), alpm_pkg_get_name(pk2)));
 }
 
+int _alpm_pkgname_pkg_cmp(const void *pkgname, const void *package)
+{
+	return(strcmp(alpm_pkg_get_name((pmpkg_t *) package), (char *) pkgname));
+}
+
+
 /* Parses the package description file for the current package
  * TODO: this should ALL be in a backend interface (be_files), we should
  *       be dealing with the abstracted concepts only in this file