From dc01505f7f272a44b974e622f75bd592debe9dcb Mon Sep 17 00:00:00 2001 From: "brian m. carlson" Date: Sun, 26 Mar 2017 16:01:24 +0000 Subject: Convert GIT_SHA1_HEXSZ used for allocation to GIT_MAX_HEXSZ Since we will likely be introducing a new hash function at some point, and that hash function might be longer than 40 hex characters, use the constant GIT_MAX_HEXSZ, which is designed to be suitable for allocations, instead of GIT_SHA1_HEXSZ. This will ease the transition down the line by distinguishing between places where we need to allocate memory suitable for the largest hash from those where we need to handle the current hash. Signed-off-by: brian m. carlson Signed-off-by: Junio C Hamano diff --git a/bisect.c b/bisect.c index 30808ca..21c3e34 100644 --- a/bisect.c +++ b/bisect.c @@ -682,7 +682,7 @@ static int is_expected_rev(const struct object_id *oid) static int bisect_checkout(const unsigned char *bisect_rev, int no_checkout) { - char bisect_rev_hex[GIT_SHA1_HEXSZ + 1]; + char bisect_rev_hex[GIT_MAX_HEXSZ + 1]; memcpy(bisect_rev_hex, sha1_to_hex(bisect_rev), GIT_SHA1_HEXSZ + 1); update_ref(NULL, "BISECT_EXPECTED_REV", bisect_rev, NULL, 0, UPDATE_REFS_DIE_ON_ERR); diff --git a/builtin/blame.c b/builtin/blame.c index f7aa95f..07506a3 100644 --- a/builtin/blame.c +++ b/builtin/blame.c @@ -1890,7 +1890,7 @@ static void emit_porcelain(struct scoreboard *sb, struct blame_entry *ent, int cnt; const char *cp; struct origin *suspect = ent->suspect; - char hex[GIT_SHA1_HEXSZ + 1]; + char hex[GIT_MAX_HEXSZ + 1]; oid_to_hex_r(hex, &suspect->commit->object.oid); printf("%s %d %d %d\n", @@ -1928,7 +1928,7 @@ static void emit_other(struct scoreboard *sb, struct blame_entry *ent, int opt) const char *cp; struct origin *suspect = ent->suspect; struct commit_info ci; - char hex[GIT_SHA1_HEXSZ + 1]; + char hex[GIT_MAX_HEXSZ + 1]; int show_raw_time = !!(opt & OUTPUT_RAW_TIMESTAMP); get_commit_info(suspect->commit, &ci, 1); diff --git a/builtin/merge-index.c b/builtin/merge-index.c index 2d1b6db..c99443b 100644 --- a/builtin/merge-index.c +++ b/builtin/merge-index.c @@ -9,7 +9,7 @@ static int merge_entry(int pos, const char *path) { int found; const char *arguments[] = { pgm, "", "", "", path, "", "", "", NULL }; - char hexbuf[4][GIT_SHA1_HEXSZ + 1]; + char hexbuf[4][GIT_MAX_HEXSZ + 1]; char ownbuf[4][60]; if (pos >= active_nr) diff --git a/builtin/merge.c b/builtin/merge.c index 7554b8d..a2cceea 100644 --- a/builtin/merge.c +++ b/builtin/merge.c @@ -1296,7 +1296,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) if (verify_signatures) { for (p = remoteheads; p; p = p->next) { struct commit *commit = p->item; - char hex[GIT_SHA1_HEXSZ + 1]; + char hex[GIT_MAX_HEXSZ + 1]; struct signature_check signature_check; memset(&signature_check, 0, sizeof(signature_check)); diff --git a/builtin/rev-list.c b/builtin/rev-list.c index 0aa93d5..bcf77f0 100644 --- a/builtin/rev-list.c +++ b/builtin/rev-list.c @@ -212,7 +212,7 @@ static void print_var_int(const char *var, int val) static int show_bisect_vars(struct rev_list_info *info, int reaches, int all) { int cnt, flags = info->flags; - char hex[GIT_SHA1_HEXSZ + 1] = ""; + char hex[GIT_MAX_HEXSZ + 1] = ""; struct commit_list *tried; struct rev_info *revs = info->revs; diff --git a/diff.c b/diff.c index a628ac3..330b640 100644 --- a/diff.c +++ b/diff.c @@ -398,7 +398,7 @@ static struct diff_tempfile { */ const char *name; - char hex[GIT_SHA1_HEXSZ + 1]; + char hex[GIT_MAX_HEXSZ + 1]; char mode[10]; /* @@ -4219,7 +4219,7 @@ const char *diff_aligned_abbrev(const struct object_id *oid, int len) * uniqueness across all objects (statistically speaking). */ if (abblen < GIT_SHA1_HEXSZ - 3) { - static char hex[GIT_SHA1_HEXSZ + 1]; + static char hex[GIT_MAX_HEXSZ + 1]; if (len < abblen && abblen <= len + 2) xsnprintf(hex, sizeof(hex), "%s%.*s", abbrev, len+3-abblen, ".."); else diff --git a/hex.c b/hex.c index eab7b62..28b4411 100644 --- a/hex.c +++ b/hex.c @@ -85,7 +85,7 @@ char *oid_to_hex_r(char *buffer, const struct object_id *oid) char *sha1_to_hex(const unsigned char *sha1) { static int bufno; - static char hexbuffer[4][GIT_SHA1_HEXSZ + 1]; + static char hexbuffer[4][GIT_MAX_HEXSZ + 1]; bufno = (bufno + 1) % ARRAY_SIZE(hexbuffer); return sha1_to_hex_r(hexbuffer[bufno], sha1); } diff --git a/sha1_file.c b/sha1_file.c index 7106389..e763000 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -3759,7 +3759,7 @@ static int for_each_file_in_obj_subdir(int subdir_nr, strbuf_addf(path, "/%s", de->d_name); if (strlen(de->d_name) == GIT_SHA1_HEXSZ - 2) { - char hex[GIT_SHA1_HEXSZ+1]; + char hex[GIT_MAX_HEXSZ+1]; struct object_id oid; snprintf(hex, sizeof(hex), "%02x%s", diff --git a/sha1_name.c b/sha1_name.c index cda9e49..964201b 100644 --- a/sha1_name.c +++ b/sha1_name.c @@ -15,7 +15,7 @@ typedef int (*disambiguate_hint_fn)(const unsigned char *, void *); struct disambiguate_state { int len; /* length of prefix in hex chars */ - char hex_pfx[GIT_SHA1_HEXSZ + 1]; + char hex_pfx[GIT_MAX_HEXSZ + 1]; unsigned char bin_pfx[GIT_SHA1_RAWSZ]; disambiguate_hint_fn fn; @@ -80,7 +80,7 @@ static void update_candidates(struct disambiguate_state *ds, const unsigned char static void find_short_object_filename(struct disambiguate_state *ds) { struct alternate_object_database *alt; - char hex[GIT_SHA1_HEXSZ]; + char hex[GIT_MAX_HEXSZ]; static struct alternate_object_database *fakeent; if (!fakeent) { @@ -509,7 +509,7 @@ int find_unique_abbrev_r(char *hex, const unsigned char *sha1, int len) const char *find_unique_abbrev(const unsigned char *sha1, int len) { static int bufno; - static char hexbuffer[4][GIT_SHA1_HEXSZ + 1]; + static char hexbuffer[4][GIT_MAX_HEXSZ + 1]; char *hex = hexbuffer[bufno]; bufno = (bufno + 1) % ARRAY_SIZE(hexbuffer); find_unique_abbrev_r(hex, sha1, len); diff --git a/transport.c b/transport.c index 417ed7f..8a90b0c 100644 --- a/transport.c +++ b/transport.c @@ -447,7 +447,7 @@ static int print_one_push_status(struct ref *ref, const char *dest, int count, static int measure_abbrev(const struct object_id *oid, int sofar) { - char hex[GIT_SHA1_HEXSZ + 1]; + char hex[GIT_MAX_HEXSZ + 1]; int w = find_unique_abbrev_r(hex, oid->hash, DEFAULT_ABBREV); return (w < sofar) ? sofar : w; -- cgit v0.10.2-6-g49f6