1 files changed, 746 insertions, 0 deletions

diff --git a/src/crypto/conf/conf.c b/src/crypto/conf/conf.c
new file mode 100644
index 0000000..b8dab95
--- /dev/null
+++ b/src/crypto/conf/conf.c
@@ -0,0 +1,746 @@
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/conf.h>
+
+#include <string.h>
+#include <ctype.h>
+
+#include <openssl/bio.h>
+#include <openssl/buf.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "conf_def.h"
+
+
+static uint32_t conf_value_hash(const CONF_VALUE *v) {
+  return (lh_strhash(v->section) << 2) ^ lh_strhash(v->name);
+}
+
+static int conf_value_cmp(const CONF_VALUE *a, const CONF_VALUE *b) {
+  int i;
+
+  if (a->section != b->section) {
+    i = strcmp(a->section, b->section);
+    if (i) {
+      return i;
+    }
+  }
+
+  if (a->name != NULL && b->name != NULL) {
+    return strcmp(a->name, b->name);
+  } else if (a->name == b->name) {
+    return 0;
+  } else {
+    return (a->name == NULL) ? -1 : 1;
+  }
+}
+
+CONF *NCONF_new(void) {
+  CONF *conf;
+
+  conf = OPENSSL_malloc(sizeof(CONF));
+  if (conf == NULL) {
+    return NULL;
+  }
+
+  conf->data = lh_CONF_VALUE_new(conf_value_hash, conf_value_cmp);
+  if (conf->data == NULL) {
+    OPENSSL_free(conf);
+    return NULL;
+  }
+
+  return conf;
+}
+
+static void value_free_contents(CONF_VALUE *value) {
+  if (value->section) {
+    OPENSSL_free(value->section);
+  }
+  if (value->name) {
+    OPENSSL_free(value->name);
+    if (value->value) {
+      OPENSSL_free(value->value);
+    }
+  } else {
+    if (value->value) {
+      sk_CONF_VALUE_free((STACK_OF(CONF_VALUE)*)value->value);
+    }
+  }
+}
+
+static void value_free(CONF_VALUE *value) {
+  value_free_contents(value);
+  OPENSSL_free(value);
+}
+
+void NCONF_free(CONF *conf) {
+  if (conf == NULL || conf->data == NULL) {
+    return;
+  }
+
+  lh_CONF_VALUE_doall(conf->data, value_free_contents);
+  lh_CONF_VALUE_free(conf->data);
+  OPENSSL_free(conf);
+}
+
+CONF_VALUE *NCONF_new_section(const CONF *conf, const char *section) {
+  STACK_OF(CONF_VALUE) *sk = NULL;
+  int ok = 0, i;
+  CONF_VALUE *v = NULL, *old_value;
+
+  sk = sk_CONF_VALUE_new_null();
+  v = OPENSSL_malloc(sizeof(CONF_VALUE));
+  if (sk == NULL || v == NULL) {
+    goto err;
+  }
+  i = strlen(section) + 1;
+  v->section = OPENSSL_malloc(i);
+  if (v->section == NULL) {
+    goto err;
+  }
+
+  memcpy(v->section, section, i);
+  v->section[i-1] = 0;
+  v->name = NULL;
+  v->value = (char *)sk;
+
+  if (!lh_CONF_VALUE_insert(conf->data, &old_value, v)) {
+    goto err;
+  }
+  if (old_value) {
+    value_free(old_value);
+  }
+  ok = 1;
+
+err:
+  if (!ok) {
+    if (sk != NULL) {
+      sk_CONF_VALUE_free(sk);
+    }
+    if (v != NULL) {
+      OPENSSL_free(v);
+    }
+    v = NULL;
+  }
+  return v;
+}
+
+static int str_copy(CONF *conf, char *section, char **pto, char *from) {
+  int q, r, rr = 0, to = 0, len = 0;
+  char *s, *e, *rp, *rrp, *np, *cp, v;
+  const char *p;
+  BUF_MEM *buf;
+
+  buf = BUF_MEM_new();
+  if (buf == NULL) {
+    return 0;
+  }
+
+  len = strlen(from) + 1;
+  if (!BUF_MEM_grow(buf, len)) {
+    goto err;
+  }
+
+  for (;;) {
+    if (IS_QUOTE(conf, *from)) {
+      q = *from;
+      from++;
+      while (!IS_EOF(conf, *from) && (*from != q)) {
+        if (IS_ESC(conf, *from)) {
+          from++;
+          if (IS_EOF(conf, *from)) {
+            break;
+          }
+        }
+        buf->data[to++] = *(from++);
+      }
+      if (*from == q) {
+        from++;
+      }
+    } else if (IS_DQUOTE(conf, *from)) {
+      q = *from;
+      from++;
+      while (!IS_EOF(conf, *from)) {
+        if (*from == q) {
+          if (*(from + 1) == q) {
+            from++;
+          } else {
+            break;
+          }
+        }
+        buf->data[to++] = *(from++);
+      }
+      if (*from == q) {
+        from++;
+      }
+    } else if (IS_ESC(conf, *from)) {
+      from++;
+      v = *(from++);
+      if (IS_EOF(conf, v)) {
+        break;
+      } else if (v == 'r') {
+        v = '\r';
+      } else if (v == 'n') {
+        v = '\n';
+      } else if (v == 'b') {
+        v = '\b';
+      } else if (v == 't') {
+        v = '\t';
+      }
+      buf->data[to++] = v;
+    } else if (IS_EOF(conf, *from)) {
+      break;
+    } else if (*from == '$') {
+      /* try to expand it */
+      rrp = NULL;
+      s = &(from[1]);
+      if (*s == '{') {
+        q = '}';
+      } else if (*s == '(') {
+        q = ')';
+      } else {
+        q = 0;
+      }
+
+      if (q) {
+        s++;
+      }
+      cp = section;
+      e = np = s;
+      while (IS_ALPHA_NUMERIC(conf, *e)) {
+        e++;
+      }
+      if (e[0] == ':' && e[1] == ':') {
+        cp = np;
+        rrp = e;
+        rr = *e;
+        *rrp = '\0';
+        e += 2;
+        np = e;
+        while (IS_ALPHA_NUMERIC(conf, *e)) {
+          e++;
+        }
+      }
+      r = *e;
+      *e = '\0';
+      rp = e;
+      if (q) {
+        if (r != q) {
+          OPENSSL_PUT_ERROR(CONF, str_copy, CONF_R_NO_CLOSE_BRACE);
+          goto err;
+        }
+        e++;
+      }
+      /* So at this point we have
+       * np which is the start of the name string which is
+       *   '\0' terminated.
+       * cp which is the start of the section string which is
+       *   '\0' terminated.
+       * e is the 'next point after'.
+       * r and rr are the chars replaced by the '\0'
+       * rp and rrp is where 'r' and 'rr' came from. */
+      p = NCONF_get_string(conf, cp, np);
+      if (rrp != NULL) {
+        *rrp = rr;
+      }
+      *rp = r;
+      if (p == NULL) {
+        OPENSSL_PUT_ERROR(CONF, str_copy, CONF_R_VARIABLE_HAS_NO_VALUE);
+        goto err;
+      }
+      BUF_MEM_grow_clean(buf, (strlen(p) + buf->length - (e - from)));
+      while (*p) {
+        buf->data[to++] = *(p++);
+      }
+
+      /* Since we change the pointer 'from', we also have
+         to change the perceived length of the string it
+         points at.  /RL */
+      len -= e - from;
+      from = e;
+
+      /* In case there were no braces or parenthesis around
+         the variable reference, we have to put back the
+         character that was replaced with a '\0'.  /RL */
+      *rp = r;
+    } else {
+      buf->data[to++] = *(from++);
+    }
+  }
+
+  buf->data[to] = '\0';
+  if (*pto != NULL) {
+    OPENSSL_free(*pto);
+  }
+  *pto = buf->data;
+  OPENSSL_free(buf);
+  return 1;
+
+err:
+  if (buf != NULL) {
+    BUF_MEM_free(buf);
+  }
+  return 0;
+}
+
+static CONF_VALUE *get_section(const CONF *conf, const char *section) {
+  CONF_VALUE template;
+
+  memset(&template, 0, sizeof(template));
+  template.section = (char *) section;
+  return lh_CONF_VALUE_retrieve(conf->data, &template);
+}
+
+STACK_OF(CONF_VALUE) *NCONF_get_section(const CONF *conf, const char *section) {
+  CONF_VALUE *section_value = get_section(conf, section);
+  if (section_value == NULL) {
+    return NULL;
+  }
+  return (STACK_OF(CONF_VALUE)*) section_value->value;
+}
+
+const char *NCONF_get_string(const CONF *conf, const char *section,
+                             const char *name) {
+  CONF_VALUE template, *value;
+
+  memset(&template, 0, sizeof(template));
+  template.section = (char *) section;
+  template.name = (char *) name;
+  value = lh_CONF_VALUE_retrieve(conf->data, &template);
+  if (value == NULL) {
+    return NULL;
+  }
+  return value->value;
+}
+
+int add_string(const CONF *conf, CONF_VALUE *section, CONF_VALUE *value) {
+  STACK_OF(CONF_VALUE) *section_stack = (STACK_OF(CONF_VALUE)*) section->value;
+  CONF_VALUE *old_value;
+
+  value->section = section->section;
+  if (!sk_CONF_VALUE_push(section_stack, value)) {
+    return 0;
+  }
+
+  if (!lh_CONF_VALUE_insert(conf->data, &old_value, value)) {
+    return 0;
+  }
+  if (old_value != NULL) {
+    (void)sk_CONF_VALUE_delete_ptr(section_stack, old_value);
+    value_free(old_value);
+  }
+
+  return 1;
+}
+
+static char *eat_ws(CONF *conf, char *p) {
+  while (IS_WS(conf, *p) && !IS_EOF(conf, *p)) {
+    p++;
+  }
+  return p;
+}
+
+#define scan_esc(conf, p) (((IS_EOF((conf), (p)[1])) ? ((p) + 1) : ((p) + 2)))
+
+static char *eat_alpha_numeric(CONF *conf, char *p) {
+  for (;;) {
+    if (IS_ESC(conf, *p)) {
+      p = scan_esc(conf, p);
+      continue;
+    }
+    if (!IS_ALPHA_NUMERIC_PUNCT(conf, *p)) {
+      return p;
+    }
+    p++;
+  }
+}
+
+static char *scan_quote(CONF *conf, char *p) {
+  int q = *p;
+
+  p++;
+  while (!IS_EOF(conf, *p) && *p != q) {
+    if (IS_ESC(conf, *p)) {
+      p++;
+      if (IS_EOF(conf, *p)) {
+        return p;
+      }
+    }
+    p++;
+  }
+  if (*p == q) {
+    p++;
+  }
+  return p;
+}
+
+
+static char *scan_dquote(CONF *conf, char *p) {
+  int q = *p;
+
+  p++;
+  while (!(IS_EOF(conf, *p))) {
+    if (*p == q) {
+      if (*(p + 1) == q) {
+        p++;
+      } else {
+        break;
+      }
+    }
+    p++;
+  }
+  if (*p == q) {
+    p++;
+  }
+  return p;
+}
+
+static void clear_comments(CONF *conf, char *p) {
+  for (;;) {
+    if (IS_FCOMMENT(conf, *p)) {
+      *p = '\0';
+      return;
+    }
+    if (!IS_WS(conf, *p)) {
+      break;
+    }
+    p++;
+  }
+
+  for (;;) {
+    if (IS_COMMENT(conf, *p)) {
+      *p = '\0';
+      return;
+    }
+    if (IS_DQUOTE(conf, *p)) {
+      p = scan_dquote(conf, p);
+      continue;
+    }
+    if (IS_QUOTE(conf, *p)) {
+      p = scan_quote(conf, p);
+      continue;
+    }
+    if (IS_ESC(conf, *p)) {
+      p = scan_esc(conf, p);
+      continue;
+    }
+    if (IS_EOF(conf, *p)) {
+      return;
+    } else {
+      p++;
+    }
+  }
+}
+
+static int def_load_bio(CONF *conf, BIO *in, long *out_error_line) {
+  static const size_t CONFBUFSIZE = 512;
+  int bufnum = 0, i, ii;
+  BUF_MEM *buff = NULL;
+  char *s, *p, *end;
+  int again;
+  long eline = 0;
+  char btmp[DECIMAL_SIZE(eline) + 1];
+  CONF_VALUE *v = NULL, *tv;
+  CONF_VALUE *sv = NULL;
+  char *section = NULL, *buf;
+  char *start, *psection, *pname;
+
+  if ((buff = BUF_MEM_new()) == NULL) {
+    OPENSSL_PUT_ERROR(CONF, def_load_bio, ERR_R_BUF_LIB);
+    goto err;
+  }
+
+  section = (char *)OPENSSL_malloc(10);
+  if (section == NULL) {
+    OPENSSL_PUT_ERROR(CONF, def_load_bio, ERR_R_MALLOC_FAILURE);
+    goto err;
+  }
+  BUF_strlcpy(section, "default", 10);
+
+  sv = NCONF_new_section(conf, section);
+  if (sv == NULL) {
+    OPENSSL_PUT_ERROR(CONF, def_load_bio, CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
+    goto err;
+  }
+
+  bufnum = 0;
+  again = 0;
+  for (;;) {
+    if (!BUF_MEM_grow(buff, bufnum + CONFBUFSIZE)) {
+      OPENSSL_PUT_ERROR(CONF, def_load_bio, ERR_R_BUF_LIB);
+      goto err;
+    }
+    p = &(buff->data[bufnum]);
+    *p = '\0';
+    BIO_gets(in, p, CONFBUFSIZE - 1);
+    p[CONFBUFSIZE - 1] = '\0';
+    ii = i = strlen(p);
+    if (i == 0 && !again)
+      break;
+    again = 0;
+    while (i > 0) {
+      if ((p[i - 1] != '\r') && (p[i - 1] != '\n'))
+        break;
+      else
+        i--;
+    }
+    /* we removed some trailing stuff so there is a new
+     * line on the end. */
+    if (ii && i == ii)
+      again = 1; /* long line */
+    else {
+      p[i] = '\0';
+      eline++; /* another input line */
+    }
+
+    /* we now have a line with trailing \r\n removed */
+
+    /* i is the number of bytes */
+    bufnum += i;
+
+    v = NULL;
+    /* check for line continuation */
+    if (bufnum >= 1) {
+      /* If we have bytes and the last char '\\' and
+       * second last char is not '\\' */
+      p = &(buff->data[bufnum - 1]);
+      if (IS_ESC(conf, p[0]) && ((bufnum <= 1) || !IS_ESC(conf, p[-1]))) {
+        bufnum--;
+        again = 1;
+      }
+    }
+    if (again)
+      continue;
+    bufnum = 0;
+    buf = buff->data;
+
+    clear_comments(conf, buf);
+    s = eat_ws(conf, buf);
+    if (IS_EOF(conf, *s))
+      continue; /* blank line */
+    if (*s == '[') {
+      char *ss;
+
+      s++;
+      start = eat_ws(conf, s);
+      ss = start;
+    again:
+      end = eat_alpha_numeric(conf, ss);
+      p = eat_ws(conf, end);
+      if (*p != ']') {
+        if (*p != '\0' && ss != p) {
+          ss = p;
+          goto again;
+        }
+        OPENSSL_PUT_ERROR(CONF, def_load_bio, CONF_R_MISSING_CLOSE_SQUARE_BRACKET);
+        goto err;
+      }
+      *end = '\0';
+      if (!str_copy(conf, NULL, &section, start))
+        goto err;
+      if ((sv = get_section(conf, section)) == NULL)
+        sv = NCONF_new_section(conf, section);
+      if (sv == NULL) {
+        OPENSSL_PUT_ERROR(CONF, def_load_bio, CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
+        goto err;
+      }
+      continue;
+    } else {
+      pname = s;
+      psection = NULL;
+      end = eat_alpha_numeric(conf, s);
+      if ((end[0] == ':') && (end[1] == ':')) {
+        *end = '\0';
+        end += 2;
+        psection = pname;
+        pname = end;
+        end = eat_alpha_numeric(conf, end);
+      }
+      p = eat_ws(conf, end);
+      if (*p != '=') {
+        OPENSSL_PUT_ERROR(CONF, def_load_bio, CONF_R_MISSING_EQUAL_SIGN);
+        goto err;
+      }
+      *end = '\0';
+      p++;
+      start = eat_ws(conf, p);
+      while (!IS_EOF(conf, *p))
+        p++;
+      p--;
+      while ((p != start) && (IS_WS(conf, *p)))
+        p--;
+      p++;
+      *p = '\0';
+
+      if (!(v = (CONF_VALUE *)OPENSSL_malloc(sizeof(CONF_VALUE)))) {
+        OPENSSL_PUT_ERROR(CONF, def_load_bio, ERR_R_MALLOC_FAILURE);
+        goto err;
+      }
+      if (psection == NULL)
+        psection = section;
+      v->name = (char *)OPENSSL_malloc(strlen(pname) + 1);
+      v->value = NULL;
+      if (v->name == NULL) {
+        OPENSSL_PUT_ERROR(CONF, def_load_bio, ERR_R_MALLOC_FAILURE);
+        goto err;
+      }
+      BUF_strlcpy(v->name, pname, strlen(pname) + 1);
+      if (!str_copy(conf, psection, &(v->value), start))
+        goto err;
+
+      if (strcmp(psection, section) != 0) {
+        if ((tv = get_section(conf, psection)) == NULL)
+          tv = NCONF_new_section(conf, psection);
+        if (tv == NULL) {
+          OPENSSL_PUT_ERROR(CONF, def_load_bio, CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
+          goto err;
+        }
+      } else
+        tv = sv;
+      if (add_string(conf, tv, v) == 0) {
+        OPENSSL_PUT_ERROR(CONF, def_load_bio, ERR_R_MALLOC_FAILURE);
+        goto err;
+      }
+      v = NULL;
+    }
+  }
+  if (buff != NULL)
+    BUF_MEM_free(buff);
+  if (section != NULL)
+    OPENSSL_free(section);
+  return 1;
+
+err:
+  if (buff != NULL)
+    BUF_MEM_free(buff);
+  if (section != NULL)
+    OPENSSL_free(section);
+  if (out_error_line != NULL)
+    *out_error_line = eline;
+  BIO_snprintf(btmp, sizeof btmp, "%ld", eline);
+  ERR_add_error_data(2, "line ", btmp);
+
+  if (v != NULL) {
+    if (v->name != NULL)
+      OPENSSL_free(v->name);
+    if (v->value != NULL)
+      OPENSSL_free(v->value);
+    if (v != NULL)
+      OPENSSL_free(v);
+  }
+  return 0;
+}
+
+int NCONF_load(CONF *conf, const char *filename, long *out_error_line) {
+  BIO *in = BIO_new_file(filename, "rb");
+  int ret;
+
+  if (in == NULL) {
+    OPENSSL_PUT_ERROR(CONF, NCONF_load, ERR_R_SYS_LIB);
+    return 0;
+  }
+
+  ret = def_load_bio(conf, in, out_error_line);
+  BIO_free(in);
+
+  return ret;
+}
+
+int CONF_parse_list(const char *list, char sep, int remove_whitespace,
+                    int (*list_cb)(const char *elem, int len, void *usr),
+                    void *arg) {
+  int ret;
+  const char *lstart, *tmpend, *p;
+
+  if (list == NULL) {
+    OPENSSL_PUT_ERROR(CONF, CONF_parse_list, CONF_R_LIST_CANNOT_BE_NULL);
+    return 0;
+  }
+
+  lstart = list;
+  for (;;) {
+    if (remove_whitespace) {
+      while (*lstart && isspace((unsigned char)*lstart)) {
+        lstart++;
+      }
+    }
+    p = strchr(lstart, sep);
+    if (p == lstart || !*lstart) {
+      ret = list_cb(NULL, 0, arg);
+    } else {
+      if (p) {
+        tmpend = p - 1;
+      } else {
+        tmpend = lstart + strlen(lstart) - 1;
+      }
+      if (remove_whitespace) {
+        while (isspace((unsigned char)*tmpend)) {
+          tmpend--;
+        }
+      }
+      ret = list_cb(lstart, tmpend - lstart + 1, arg);
+    }
+    if (ret <= 0) {
+      return ret;
+    }
+    if (p == NULL) {
+      return 1;
+    }
+    lstart = p + 1;
+  }
+}