diff options
author | Pauli <paul.dale@oracle.com> | 2017-07-06 14:56:20 +1000 |
---|---|---|
committer | Pauli <paul.dale@oracle.com> | 2017-07-07 15:45:55 +1000 |
commit | a2371fa93365cc0bc0e46b9d65f3a47a074b1c30 (patch) | |
tree | c4751256bc9a1e3d2b20bad3becd6b17aec2c9f4 /crypto/objects/obj_dat.c | |
parent | a7ff57965b81ce4fd73a18266ce29abf6b909fdb (diff) |
Trivial bounds checking.
Bounds checking strpy, strcat and sprintf.
These are the remaining easy ones to cover a recently removed commit.
Some are trivial, some have been modified and a couple left as they are because the reverted change didn't bounds check properly.
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3871)
Diffstat (limited to 'crypto/objects/obj_dat.c')
-rw-r--r-- | crypto/objects/obj_dat.c | 112 |
1 files changed, 56 insertions, 56 deletions
diff --git a/crypto/objects/obj_dat.c b/crypto/objects/obj_dat.c index 72919cef05..4de346b5cb 100644 --- a/crypto/objects/obj_dat.c +++ b/crypto/objects/obj_dat.c @@ -1,5 +1,5 @@ /* - * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the OpenSSL license (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy @@ -40,14 +40,14 @@ static LHASH_OF(ADDED_OBJ) *added = NULL; static int sn_cmp(const ASN1_OBJECT *const *a, const unsigned int *b) { - return (strcmp((*a)->sn, nid_objs[*b].sn)); + return strcmp((*a)->sn, nid_objs[*b].sn); } IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, sn); static int ln_cmp(const ASN1_OBJECT *const *a, const unsigned int *b) { - return (strcmp((*a)->ln, nid_objs[*b].ln)); + return strcmp((*a)->ln, nid_objs[*b].ln); } IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, ln); @@ -82,7 +82,7 @@ static unsigned long added_obj_hash(const ADDED_OBJ *ca) } ret &= 0x3fffffffL; ret |= ((unsigned long)ca->type) << 30L; - return (ret); + return ret; } static int added_obj_cmp(const ADDED_OBJ *ca, const ADDED_OBJ *cb) @@ -92,31 +92,31 @@ static int added_obj_cmp(const ADDED_OBJ *ca, const ADDED_OBJ *cb) i = ca->type - cb->type; if (i) - return (i); + return i; a = ca->obj; b = cb->obj; switch (ca->type) { case ADDED_DATA: i = (a->length - b->length); if (i) - return (i); - return (memcmp(a->data, b->data, (size_t)a->length)); + return i; + return memcmp(a->data, b->data, (size_t)a->length); case ADDED_SNAME: if (a->sn == NULL) - return (-1); + return -1; else if (b->sn == NULL) - return (1); + return 1; else - return (strcmp(a->sn, b->sn)); + return strcmp(a->sn, b->sn); case ADDED_LNAME: if (a->ln == NULL) - return (-1); + return -1; else if (b->ln == NULL) - return (1); + return 1; else - return (strcmp(a->ln, b->ln)); + return strcmp(a->ln, b->ln); case ADDED_NID: - return (a->nid - b->nid); + return a->nid - b->nid; default: /* abort(); */ return 0; @@ -126,9 +126,9 @@ static int added_obj_cmp(const ADDED_OBJ *ca, const ADDED_OBJ *cb) static int init_added(void) { if (added != NULL) - return (1); + return 1; added = lh_ADDED_OBJ_new(added_obj_hash, added_obj_cmp); - return (added != NULL); + return added != NULL; } static void cleanup1_doall(ADDED_OBJ *a) @@ -168,7 +168,7 @@ int OBJ_new_nid(int num) i = new_nid; new_nid += num; - return (i); + return i; } int OBJ_add_object(const ASN1_OBJECT *obj) @@ -179,7 +179,7 @@ int OBJ_add_object(const ASN1_OBJECT *obj) if (added == NULL) if (!init_added()) - return (0); + return 0; if ((o = OBJ_dup(obj)) == NULL) goto err; if ((ao[ADDED_NID] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL) @@ -207,14 +207,14 @@ int OBJ_add_object(const ASN1_OBJECT *obj) ~(ASN1_OBJECT_FLAG_DYNAMIC | ASN1_OBJECT_FLAG_DYNAMIC_STRINGS | ASN1_OBJECT_FLAG_DYNAMIC_DATA); - return (o->nid); + return o->nid; err2: OBJerr(OBJ_F_OBJ_ADD_OBJECT, ERR_R_MALLOC_FAILURE); err: for (i = ADDED_DATA; i <= ADDED_NID; i++) OPENSSL_free(ao[i]); OPENSSL_free(o); - return (NID_undef); + return NID_undef; } ASN1_OBJECT *OBJ_nid2obj(int n) @@ -225,21 +225,21 @@ ASN1_OBJECT *OBJ_nid2obj(int n) if ((n >= 0) && (n < NUM_NID)) { if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) { OBJerr(OBJ_F_OBJ_NID2OBJ, OBJ_R_UNKNOWN_NID); - return (NULL); + return NULL; } - return ((ASN1_OBJECT *)&(nid_objs[n])); + return (ASN1_OBJECT *)&(nid_objs[n]); } else if (added == NULL) - return (NULL); + return NULL; else { ad.type = ADDED_NID; ad.obj = &ob; ob.nid = n; adp = lh_ADDED_OBJ_retrieve(added, &ad); if (adp != NULL) - return (adp->obj); + return adp->obj; else { OBJerr(OBJ_F_OBJ_NID2OBJ, OBJ_R_UNKNOWN_NID); - return (NULL); + return NULL; } } } @@ -252,21 +252,21 @@ const char *OBJ_nid2sn(int n) if ((n >= 0) && (n < NUM_NID)) { if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) { OBJerr(OBJ_F_OBJ_NID2SN, OBJ_R_UNKNOWN_NID); - return (NULL); + return NULL; } - return (nid_objs[n].sn); + return nid_objs[n].sn; } else if (added == NULL) - return (NULL); + return NULL; else { ad.type = ADDED_NID; ad.obj = &ob; ob.nid = n; adp = lh_ADDED_OBJ_retrieve(added, &ad); if (adp != NULL) - return (adp->obj->sn); + return adp->obj->sn; else { OBJerr(OBJ_F_OBJ_NID2SN, OBJ_R_UNKNOWN_NID); - return (NULL); + return NULL; } } } @@ -279,21 +279,21 @@ const char *OBJ_nid2ln(int n) if ((n >= 0) && (n < NUM_NID)) { if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) { OBJerr(OBJ_F_OBJ_NID2LN, OBJ_R_UNKNOWN_NID); - return (NULL); + return NULL; } - return (nid_objs[n].ln); + return nid_objs[n].ln; } else if (added == NULL) - return (NULL); + return NULL; else { ad.type = ADDED_NID; ad.obj = &ob; ob.nid = n; adp = lh_ADDED_OBJ_retrieve(added, &ad); if (adp != NULL) - return (adp->obj->ln); + return adp->obj->ln; else { OBJerr(OBJ_F_OBJ_NID2LN, OBJ_R_UNKNOWN_NID); - return (NULL); + return NULL; } } } @@ -306,10 +306,10 @@ static int obj_cmp(const ASN1_OBJECT *const *ap, const unsigned int *bp) j = (a->length - b->length); if (j) - return (j); + return j; if (a->length == 0) return 0; - return (memcmp(a->data, b->data, a->length)); + return memcmp(a->data, b->data, a->length); } IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, obj); @@ -320,9 +320,9 @@ int OBJ_obj2nid(const ASN1_OBJECT *a) ADDED_OBJ ad, *adp; if (a == NULL) - return (NID_undef); + return NID_undef; if (a->nid != 0) - return (a->nid); + return a->nid; if (a->length == 0) return NID_undef; @@ -332,12 +332,12 @@ int OBJ_obj2nid(const ASN1_OBJECT *a) ad.obj = (ASN1_OBJECT *)a; /* XXX: ugly but harmless */ adp = lh_ADDED_OBJ_retrieve(added, &ad); if (adp != NULL) - return (adp->obj->nid); + return adp->obj->nid; } op = OBJ_bsearch_obj(&a, obj_objs, NUM_OBJ); if (op == NULL) - return (NID_undef); - return (nid_objs[*op].nid); + return NID_undef; + return nid_objs[*op].nid; } /* @@ -404,7 +404,7 @@ int OBJ_obj2txt(char *buf, int buf_len, const ASN1_OBJECT *a, int no_name) buf[0] = '\0'; if ((a == NULL) || (a->data == NULL)) - return (0); + return 0; if (!no_name && (nid = OBJ_obj2nid(a)) != NID_undef) { const char *s; @@ -500,7 +500,7 @@ int OBJ_obj2txt(char *buf, int buf_len, const ASN1_OBJECT *a, int no_name) n += i; OPENSSL_free(bndec); } else { - sprintf(tbuf, ".%lu", l); + BIO_snprintf(tbuf, sizeof(tbuf), ".%lu", l); i = strlen(tbuf); if (buf && (buf_len > 0)) { OPENSSL_strlcpy(buf, tbuf, buf_len); @@ -548,12 +548,12 @@ int OBJ_ln2nid(const char *s) ad.obj = &o; adp = lh_ADDED_OBJ_retrieve(added, &ad); if (adp != NULL) - return (adp->obj->nid); + return adp->obj->nid; } op = OBJ_bsearch_ln(&oo, ln_objs, NUM_LN); if (op == NULL) - return (NID_undef); - return (nid_objs[*op].nid); + return NID_undef; + return nid_objs[*op].nid; } int OBJ_sn2nid(const char *s) @@ -569,12 +569,12 @@ int OBJ_sn2nid(const char *s) ad.obj = &o; adp = lh_ADDED_OBJ_retrieve(added, &ad); if (adp != NULL) - return (adp->obj->nid); + return adp->obj->nid; } op = OBJ_bsearch_sn(&oo, sn_objs, NUM_SN); if (op == NULL) - return (NID_undef); - return (nid_objs[*op].nid); + return NID_undef; + return nid_objs[*op].nid; } const void *OBJ_bsearch_(const void *key, const void *base, int num, int size, @@ -593,7 +593,7 @@ const void *OBJ_bsearch_ex_(const void *key, const void *base_, int num, const char *p = NULL; if (num == 0) - return (NULL); + return NULL; l = 0; h = num; while (l < h) { @@ -629,7 +629,7 @@ const void *OBJ_bsearch_ex_(const void *key, const void *base_, int num, i--; p = &(base[i * size]); } - return (p); + return p; } int OBJ_create_objects(BIO *in) @@ -642,10 +642,10 @@ int OBJ_create_objects(BIO *in) s = o = NULL; i = BIO_gets(in, buf, 512); if (i <= 0) - return (num); + return num; buf[i - 1] = '\0'; if (!isalnum((unsigned char)buf[0])) - return (num); + return num; o = s = buf; while (isdigit((unsigned char)*s) || (*s == '.')) s++; @@ -671,9 +671,9 @@ int OBJ_create_objects(BIO *in) } else s = NULL; if ((o == NULL) || (*o == '\0')) - return (num); + return num; if (!OBJ_create(o, s, l)) - return (num); + return num; num++; } } |