diff options
Diffstat (limited to 'deps/xdiff/xmerge.c')
-rw-r--r-- | deps/xdiff/xmerge.c | 46 |
1 files changed, 24 insertions, 22 deletions
diff --git a/deps/xdiff/xmerge.c b/deps/xdiff/xmerge.c index 433e2d741..af40c88a5 100644 --- a/deps/xdiff/xmerge.c +++ b/deps/xdiff/xmerge.c @@ -88,7 +88,7 @@ static int xdl_cleanup_merge(xdmerge_t *c) if (c->mode == 0) count++; next_c = c->next; - xdl_free(c); + free(c); } return count; } @@ -456,7 +456,7 @@ static void xdl_merge_two_conflicts(xdmerge_t *m) m->chg1 = next_m->i1 + next_m->chg1 - m->i1; m->chg2 = next_m->i2 + next_m->chg2 - m->i2; m->next = next_m->next; - xdl_free(next_m); + free(next_m); } /* @@ -684,42 +684,42 @@ static int xdl_do_merge(xdfenv_t *xe1, xdchange_t *xscr1, int xdl_merge(mmfile_t *orig, mmfile_t *mf1, mmfile_t *mf2, xmparam_t const *xmp, mmbuffer_t *result) { - xdchange_t *xscr1, *xscr2; + xdchange_t *xscr1 = NULL, *xscr2 = NULL; xdfenv_t xe1, xe2; - int status; + int status = -1; xpparam_t const *xpp = &xmp->xpp; result->ptr = NULL; result->size = 0; - if (xdl_do_diff(orig, mf1, xpp, &xe1) < 0) { + if (xdl_do_diff(orig, mf1, xpp, &xe1) < 0) return -1; - } - if (xdl_do_diff(orig, mf2, xpp, &xe2) < 0) { - xdl_free_env(&xe1); - return -1; - } + + if (xdl_do_diff(orig, mf2, xpp, &xe2) < 0) + goto free_xe1; /* avoid double free of xe2 */ + if (xdl_change_compact(&xe1.xdf1, &xe1.xdf2, xpp->flags) < 0 || xdl_change_compact(&xe1.xdf2, &xe1.xdf1, xpp->flags) < 0 || - xdl_build_script(&xe1, &xscr1) < 0) { - xdl_free_env(&xe1); - return -1; - } + xdl_build_script(&xe1, &xscr1) < 0) + goto out; + if (xdl_change_compact(&xe2.xdf1, &xe2.xdf2, xpp->flags) < 0 || xdl_change_compact(&xe2.xdf2, &xe2.xdf1, xpp->flags) < 0 || - xdl_build_script(&xe2, &xscr2) < 0) { - xdl_free_script(xscr1); - xdl_free_env(&xe1); - xdl_free_env(&xe2); - return -1; - } - status = 0; + xdl_build_script(&xe2, &xscr2) < 0) + goto out; + if (!xscr1) { result->ptr = xdl_malloc(mf2->size); + if (!result->ptr) + goto out; + status = 0; memcpy(result->ptr, mf2->ptr, mf2->size); result->size = mf2->size; } else if (!xscr2) { result->ptr = xdl_malloc(mf1->size); + if (!result->ptr) + goto out; + status = 0; memcpy(result->ptr, mf1->ptr, mf1->size); result->size = mf1->size; } else { @@ -727,11 +727,13 @@ int xdl_merge(mmfile_t *orig, mmfile_t *mf1, mmfile_t *mf2, &xe2, xscr2, xmp, result); } + out: xdl_free_script(xscr1); xdl_free_script(xscr2); - xdl_free_env(&xe1); xdl_free_env(&xe2); + free_xe1: + xdl_free_env(&xe1); return status; } |