/* load public key from ssh v1 private or any pubkey file */ int sshkey_load_public(const char *filename, struct sshkey **keyp, char **commentp) { struct sshkey *pub = NULL; char file[MAXPATHLEN]; int r, fd; *keyp = NULL; if (commentp != NULL) *commentp = NULL; /* try rsa1 private key */ if ((fd = open(filename, O_RDONLY)) < 0) goto skip; r = sshkey_load_public_rsa1(fd, filename, keyp, commentp); close(fd); switch (r) { case SSH_ERR_INTERNAL_ERROR: case SSH_ERR_ALLOC_FAIL: case SSH_ERR_SYSTEM_ERROR: case 0: return r; } /* try rsa1 public key */ if ((pub = sshkey_new(KEY_RSA1)) == NULL) return SSH_ERR_ALLOC_FAIL; if ((r = sshkey_try_load_public(pub, filename, commentp)) == 0) { *keyp = pub; return 0; } sshkey_free(pub); /* try ssh2 public key */ if ((pub = sshkey_new(KEY_UNSPEC)) == NULL) return SSH_ERR_ALLOC_FAIL; if ((r = sshkey_try_load_public(pub, filename, commentp)) == 0) { *keyp = pub; return 0; } skip: /* try .pub suffix */ if (pub == NULL && (pub = sshkey_new(KEY_UNSPEC)) == NULL) return SSH_ERR_ALLOC_FAIL; r = SSH_ERR_ALLOC_FAIL; /* in case strlcpy or strlcat fail */ if ((strlcpy(file, filename, sizeof file) < sizeof(file)) && (strlcat(file, ".pub", sizeof file) < sizeof(file)) && (r = sshkey_try_load_public(pub, file, commentp)) == 0) { *keyp = pub; return 0; } sshkey_free(pub); return r; }
/* load public key from ssh v1 private or any pubkey file */ int sshkey_load_public(const char *filename, struct sshkey **keyp, char **commentp) { struct sshkey *pub = NULL; char file[PATH_MAX]; int r, fd; if (keyp != NULL) *keyp = NULL; if (commentp != NULL) *commentp = NULL; /* XXX should load file once and attempt to parse each format */ if ((fd = open(filename, O_RDONLY)) < 0) goto skip; #ifdef WITH_SSH1 /* try rsa1 private key */ r = sshkey_load_public_rsa1(fd, keyp, commentp); close(fd); switch (r) { case SSH_ERR_INTERNAL_ERROR: case SSH_ERR_ALLOC_FAIL: case SSH_ERR_INVALID_ARGUMENT: case SSH_ERR_SYSTEM_ERROR: case 0: return r; } #endif /* WITH_SSH1 */ /* try ssh2 public key */ if ((pub = sshkey_new(KEY_UNSPEC)) == NULL) return SSH_ERR_ALLOC_FAIL; if ((r = sshkey_try_load_public(pub, filename, commentp)) == 0) { if (keyp != NULL) *keyp = pub; return 0; } sshkey_free(pub); #ifdef WITH_SSH1 /* try rsa1 public key */ if ((pub = sshkey_new(KEY_RSA1)) == NULL) return SSH_ERR_ALLOC_FAIL; if ((r = sshkey_try_load_public(pub, filename, commentp)) == 0) { if (keyp != NULL) *keyp = pub; return 0; } sshkey_free(pub); #endif /* WITH_SSH1 */ skip: /* try .pub suffix */ if ((pub = sshkey_new(KEY_UNSPEC)) == NULL) return SSH_ERR_ALLOC_FAIL; r = SSH_ERR_ALLOC_FAIL; /* in case strlcpy or strlcat fail */ if ((strlcpy(file, filename, sizeof file) < sizeof(file)) && (strlcat(file, ".pub", sizeof file) < sizeof(file)) && (r = sshkey_try_load_public(pub, file, commentp)) == 0) { if (keyp != NULL) *keyp = pub; return 0; } sshkey_free(pub); return r; }