diff options
Diffstat (limited to 'apps/bf_prefix.c')
| -rw-r--r-- | apps/bf_prefix.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/apps/bf_prefix.c b/apps/bf_prefix.c deleted file mode 100644 index bae3c91bf8b3..000000000000 --- a/apps/bf_prefix.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * Copyright 2018 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 - * in the file LICENSE in the source distribution or at - * https://www.openssl.org/source/license.html - */ - -#include <stdio.h> -#include <string.h> -#include <errno.h> -#include <openssl/bio.h> -#include "apps.h" - -static int prefix_write(BIO *b, const char *out, size_t outl, - size_t *numwritten); -static int prefix_read(BIO *b, char *buf, size_t size, size_t *numread); -static int prefix_puts(BIO *b, const char *str); -static int prefix_gets(BIO *b, char *str, int size); -static long prefix_ctrl(BIO *b, int cmd, long arg1, void *arg2); -static int prefix_create(BIO *b); -static int prefix_destroy(BIO *b); -static long prefix_callback_ctrl(BIO *b, int cmd, BIO_info_cb *fp); - -static BIO_METHOD *prefix_meth = NULL; - -BIO_METHOD *apps_bf_prefix(void) -{ - if (prefix_meth == NULL) { - if ((prefix_meth = - BIO_meth_new(BIO_TYPE_FILTER, "Prefix filter")) == NULL - || !BIO_meth_set_create(prefix_meth, prefix_create) - || !BIO_meth_set_destroy(prefix_meth, prefix_destroy) - || !BIO_meth_set_write_ex(prefix_meth, prefix_write) - || !BIO_meth_set_read_ex(prefix_meth, prefix_read) - || !BIO_meth_set_puts(prefix_meth, prefix_puts) - || !BIO_meth_set_gets(prefix_meth, prefix_gets) - || !BIO_meth_set_ctrl(prefix_meth, prefix_ctrl) - || !BIO_meth_set_callback_ctrl(prefix_meth, prefix_callback_ctrl)) { - BIO_meth_free(prefix_meth); - prefix_meth = NULL; - } - } - return prefix_meth; -} - -typedef struct prefix_ctx_st { - char *prefix; - int linestart; /* flag to indicate we're at the line start */ -} PREFIX_CTX; - -static int prefix_create(BIO *b) -{ - PREFIX_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx)); - - if (ctx == NULL) - return 0; - - ctx->prefix = NULL; - ctx->linestart = 1; - BIO_set_data(b, ctx); - BIO_set_init(b, 1); - return 1; -} - -static int prefix_destroy(BIO *b) -{ - PREFIX_CTX *ctx = BIO_get_data(b); - - OPENSSL_free(ctx->prefix); - OPENSSL_free(ctx); - return 1; -} - -static int prefix_read(BIO *b, char *in, size_t size, size_t *numread) -{ - return BIO_read_ex(BIO_next(b), in, size, numread); -} - -static int prefix_write(BIO *b, const char *out, size_t outl, - size_t *numwritten) -{ - PREFIX_CTX *ctx = BIO_get_data(b); - - if (ctx == NULL) - return 0; - - /* If no prefix is set or if it's empty, we've got nothing to do here */ - if (ctx->prefix == NULL || *ctx->prefix == '\0') { - /* We do note if what comes next will be a new line, though */ - if (outl > 0) - ctx->linestart = (out[outl-1] == '\n'); - return BIO_write_ex(BIO_next(b), out, outl, numwritten); - } - - *numwritten = 0; - - while (outl > 0) { - size_t i; - char c; - - /* If we know that we're at the start of the line, output the prefix */ - if (ctx->linestart) { - size_t dontcare; - - if (!BIO_write_ex(BIO_next(b), ctx->prefix, strlen(ctx->prefix), - &dontcare)) - return 0; - ctx->linestart = 0; - } - - /* Now, go look for the next LF, or the end of the string */ - for (i = 0, c = '\0'; i < outl && (c = out[i]) != '\n'; i++) - continue; - if (c == '\n') - i++; - - /* Output what we found so far */ - while (i > 0) { - size_t num = 0; - - if (!BIO_write_ex(BIO_next(b), out, i, &num)) - return 0; - out += num; - outl -= num; - *numwritten += num; - i -= num; - } - - /* If we found a LF, what follows is a new line, so take note */ - if (c == '\n') - ctx->linestart = 1; - } - - return 1; -} - -static long prefix_ctrl(BIO *b, int cmd, long num, void *ptr) -{ - long ret = 0; - - switch (cmd) { - case PREFIX_CTRL_SET_PREFIX: - { - PREFIX_CTX *ctx = BIO_get_data(b); - - if (ctx == NULL) - break; - - OPENSSL_free(ctx->prefix); - ctx->prefix = OPENSSL_strdup((const char *)ptr); - ret = ctx->prefix != NULL; - } - break; - default: - if (BIO_next(b) != NULL) - ret = BIO_ctrl(BIO_next(b), cmd, num, ptr); - break; - } - return ret; -} - -static long prefix_callback_ctrl(BIO *b, int cmd, BIO_info_cb *fp) -{ - return BIO_callback_ctrl(BIO_next(b), cmd, fp); -} - -static int prefix_gets(BIO *b, char *buf, int size) -{ - return BIO_gets(BIO_next(b), buf, size); -} - -static int prefix_puts(BIO *b, const char *str) -{ - return BIO_write(b, str, strlen(str)); -} |