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libxbps: ABI/API break due to xbps_pkg{,pattern}_name changes.

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The funcs xbps_pkg_name() and xbps_pkgpattern_name() were
using malloc(3) to return the result, until now.

They now have been changed to not allocate the result
via malloc, the caller is responsible to provide a buffer
at least of XBPS_NAME_SIZE (64).

If for whatever reason the pkgname can't be guessed,
returns false. This should avoid lots of small allocs
around libxbps.

New functions have the following prototype:

bool xbps_pkg_name(char *dst, size_t len, const char *pkg)
bool xbps_pkgpattern_name(char *dst, size_t len, const char *pkg)

as suggested by @duncaen.
This commit is contained in:
Juan RP
2020-02-08 19:31:29 +01:00
parent 1cda3017c3
commit 6010a24de6
35 changed files with 377 additions and 435 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
bin/xbps-install/util.c
View File

@@ -82,15 +82,15 @@ find_longest_pkgname(struct transaction *trans)
{
xbps_object_t obj;
const char *pkgver;
char *pkgname;
char pkgname[XBPS_NAME_SIZE];
unsigned int len = 0, max = 0;
while ((obj = xbps_object_iterator_next(trans->iter)) != NULL) {
xbps_dictionary_get_cstring_nocopy(obj, "pkgver", &pkgver);
pkgname = xbps_pkg_name(pkgver);
assert(pkgname);
if (!xbps_pkg_name(pkgname, sizeof(pkgname), pkgver)) {
abort();
}
len = strlen(pkgname);
free(pkgname);
if (max == 0 || len > max)
max = len;
}
@@ -125,7 +125,7 @@ print_trans_colmode(struct transaction *trans, int cols)
while ((obj = xbps_object_iterator_next(trans->iter)) != NULL) {
xbps_dictionary_t ipkgd;
const char *pkgver, *ipkgver, *ver, *iver, *tract;
char *pkgname;
char pkgname[XBPS_NAME_SIZE];
bool dload = false;
ver = iver = NULL;
@@ -135,8 +135,9 @@ print_trans_colmode(struct transaction *trans, int cols)
xbps_dictionary_get_uint64(obj, "filename-size", &dlsize);
xbps_dictionary_get_bool(obj, "download", &dload);
pkgname = xbps_pkg_name(pkgver);
assert(pkgname);
if (!xbps_pkg_name(pkgname, sizeof(pkgname), pkgver)) {
abort();
}
if (trans->xhp->flags & XBPS_FLAG_DOWNLOAD_ONLY) {
tract = "download";
@@ -206,7 +207,6 @@ print_trans_colmode(struct transaction *trans, int cols)
/* print download size */
printf("%s ", size);
printf("\n");
free(pkgname);
}
xbps_object_iterator_reset(trans->iter);
return true;