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alternatives: fix dirname() buffer reuse

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This commit is contained in:
Michael Gehring 2016-02-08 14:26:03 +01:00
parent ab0d5c847d
commit 3bfc7b5e6d
1 changed files with 6 additions and 2 deletions
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8
lib/package_alternatives.c
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@ -150,7 +150,7 @@ create_symlinks(struct xbps_handle *xhp, xbps_array_t a, const char *grname)
cnt = xbps_array_count(a);
for (i = 0; i < cnt; i++) {
xbps_string_t str;
char *tgt_dup, *tgt_dir, *lnk_dup, *lnk_dir;
char *tgt_dup, *tgt_dir, *tgt_dir_dup, *lnk_dup, *lnk_dir;
char *l, *lnk, *tgt = NULL;
const char *tgt0;
int rv;
@ -164,6 +164,7 @@ create_symlinks(struct xbps_handle *xhp, xbps_array_t a, const char *grname)
tgt_dup = strdup(tgt0);
assert(tgt_dup);
tgt_dir = dirname(tgt_dup);
tgt_dir_dup = strdup(tgt_dir);
if (strcmp(tgt_dir, ".")) {
tgt = xbps_xasprintf("%s%s", xhp->rootdir, tgt_dir);
if (xbps_mkpath(tgt, 0755) != 0) {
@ -172,6 +173,7 @@ create_symlinks(struct xbps_handle *xhp, xbps_array_t a, const char *grname)
xbps_dbg_printf(xhp, "failed to create "
"target dir '%s' for group '%s': %s\n",
tgt, grname, strerror(errno));
free(tgt_dir_dup);
free(tgt_dup);
free(tgt);
free(l);
@ -192,6 +194,7 @@ create_symlinks(struct xbps_handle *xhp, xbps_array_t a, const char *grname)
xbps_dbg_printf(xhp, "failed to create symlink"
"dir '%s' for group '%s': %s\n",
lnk, grname, strerror(errno));
free(tgt_dir_dup);
free(tgt_dup);
free(lnk_dup);
free(lnk);
@ -204,7 +207,7 @@ create_symlinks(struct xbps_handle *xhp, xbps_array_t a, const char *grname)
free(lnk_dup);
if (l[0] != '/') {
lnk = xbps_xasprintf("%s%s/%s", xhp->rootdir, tgt_dir, l);
lnk = xbps_xasprintf("%s%s/%s", xhp->rootdir, tgt_dir_dup, l);
free(tgt_dup);
tgt_dup = strdup(tgt0);
assert(tgt_dup);
@ -215,6 +218,7 @@ create_symlinks(struct xbps_handle *xhp, xbps_array_t a, const char *grname)
tgt = strdup(tgt0);
lnk = xbps_xasprintf("%s%s", xhp->rootdir, l);
}
free(tgt_dir_dup);
xbps_set_cb_state(xhp, XBPS_STATE_ALTGROUP_LINK_ADDED, 0, NULL,
"Creating '%s' alternatives group symlink: %s -> %s", grname, l, tgt);
unlink(lnk);