chore: checkpoint before Python removal

vendor/aws-lc-sys/aws-lc/crypto/conf/conf.c

@@ -0,0 +1,688 @@
+// Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+#include <openssl/conf.h>
+
+#include <ctype.h>
+#include <string.h>
+
+#include <openssl/bio.h>
+#include <openssl/buf.h>
+#include <openssl/err.h>
+#include <openssl/lhash.h>
+#include <openssl/mem.h>
+
+#include "../internal.h"
+#include "conf_def.h"
+#include "internal.h"
+
+
+static const char kDefaultSectionName[] = "default";
+
+static uint32_t conf_value_hash(const CONF_VALUE *v) {
+  const uint32_t section_hash = v->section ? OPENSSL_strhash(v->section) : 0;
+  const uint32_t name_hash = v->name ? OPENSSL_strhash(v->name) : 0;
+  return (section_hash << 2) ^ name_hash;
+}
+
+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 *method) {
+  CONF *conf;
+
+  if (method != NULL) {
+    return NULL;
+  }
+
+  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;
+}
+
+CONF_VALUE *CONF_VALUE_new(void) { return OPENSSL_zalloc(sizeof(CONF_VALUE)); }
+
+static void value_free_contents(CONF_VALUE *value) {
+  OPENSSL_free(value->section);
+  if (value->name) {
+    OPENSSL_free(value->name);
+    OPENSSL_free(value->value);
+  } else {
+    // TODO(davidben): When |value->name| is NULL, |CONF_VALUE| is actually an
+    // entirely different structure. This is fragile and confusing. Make a
+    // proper |CONF_SECTION| type that doesn't require this.
+    sk_CONF_VALUE_free((STACK_OF(CONF_VALUE) *)value->value);
+  }
+}
+
+static void value_free(CONF_VALUE *value) {
+  if (value != NULL) {
+    value_free_contents(value);
+    OPENSSL_free(value);
+  }
+}
+
+static void value_free_arg(CONF_VALUE *value, void *arg) { value_free(value); }
+
+void NCONF_free(CONF *conf) {
+  if (conf == NULL || conf->data == NULL) {
+    return;
+  }
+
+  lh_CONF_VALUE_doall_arg(conf->data, value_free_arg, NULL);
+  lh_CONF_VALUE_free(conf->data);
+  OPENSSL_free(conf);
+}
+
+static CONF_VALUE *NCONF_new_section(const CONF *conf, const char *section) {
+  STACK_OF(CONF_VALUE) *sk = NULL;
+  int ok = 0;
+  CONF_VALUE *v = NULL, *old_value;
+
+  sk = sk_CONF_VALUE_new_null();
+  v = CONF_VALUE_new();
+  if (sk == NULL || v == NULL) {
+    goto err;
+  }
+  v->section = OPENSSL_strdup(section);
+  if (v->section == NULL) {
+    goto err;
+  }
+
+  v->name = NULL;
+  v->value = (char *)sk;
+
+  if (!lh_CONF_VALUE_insert(conf->data, &old_value, v)) {
+    goto err;
+  }
+  value_free(old_value);
+  ok = 1;
+
+err:
+  if (!ok) {
+    sk_CONF_VALUE_free(sk);
+    OPENSSL_free(v);
+    v = NULL;
+  }
+  return v;
+}
+
+static int str_copy(CONF *conf, char *section, char **pto, char *from) {
+  int q = 0, to = 0, len = 0, r = 0;
+  char *rrp = NULL, *s = NULL, *cp = NULL, *e = NULL, *rp = NULL, *np = NULL;
+  const char *p = NULL;
+  char rr = 0;
+  char v;
+  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 {
+        OPENSSL_PUT_ERROR(CONF, CONF_R_NO_CLOSE_QUOTE);
+        goto err;
+      }
+    } 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 == '$') {
+      size_t newsize = 0;
+
+      // 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, 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, CONF_R_VARIABLE_HAS_NO_VALUE);
+        goto err;
+      }
+      newsize = strlen(p) + buf->length - (e - from);
+      if (newsize > UINT16_MAX) {
+        OPENSSL_PUT_ERROR(CONF, CONF_R_VARIABLE_EXPANSION_TOO_LONG);
+        goto err;
+      }
+      if (!BUF_MEM_grow_clean(buf, newsize)) {
+        OPENSSL_PUT_ERROR(CONF, ERR_R_MALLOC_FAILURE);
+        goto err;
+      }
+      while (*p) {
+        buf->data[to++] = *(p++);
+      }
+
+      from = e;
+    } else {
+      buf->data[to++] = *(from++);
+    }
+  }
+
+  buf->data[to] = '\0';
+  OPENSSL_free(*pto);
+  *pto = buf->data;
+  OPENSSL_free(buf);
+  return 1;
+
+err:
+  BUF_MEM_free(buf);
+  return 0;
+}
+
+static CONF_VALUE *get_section(const CONF *conf, const char *section) {
+  CONF_VALUE template;
+
+  OPENSSL_memset(&template, 0, sizeof(template));
+  template.section = (char *)section;
+  return lh_CONF_VALUE_retrieve(conf->data, &template);
+}
+
+const STACK_OF(CONF_VALUE) *NCONF_get_section(const CONF *conf,
+                                              const char *section) {
+  const 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;
+
+  OPENSSL_memset(&template, 0, sizeof(template));
+
+  if (section != NULL) {
+    template.section = (char *)section;
+    template.name = (char *)name;
+    value = lh_CONF_VALUE_retrieve(conf->data, &template);
+    if (value != NULL) {
+      return value->value;
+    }
+  }
+
+  char defaultSectionName[] = "default";
+
+  template.section = defaultSectionName;
+  template.name = (char *)name;
+  value = lh_CONF_VALUE_retrieve(conf->data, &template);
+  if (value != NULL) {
+    return value->value;
+  }
+
+  return NULL;
+}
+
+static 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 = OPENSSL_strdup(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 void clear_comments(CONF *conf, char *p) {
+  for (;;) {
+    if (!IS_WS(conf, *p)) {
+      break;
+    }
+    p++;
+  }
+
+  for (;;) {
+    if (IS_COMMENT(conf, *p)) {
+      *p = '\0';
+      return;
+    }
+    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++;
+    }
+  }
+}
+
+int NCONF_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, ERR_R_BUF_LIB);
+    goto err;
+  }
+
+  section = OPENSSL_strdup(kDefaultSectionName);
+  if (section == NULL) {
+    goto err;
+  }
+
+  sv = NCONF_new_section(conf, section);
+  if (sv == NULL) {
+    OPENSSL_PUT_ERROR(CONF, 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, 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, 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, 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, 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_new())) {
+        goto err;
+      }
+      if (psection == NULL) {
+        psection = section;
+      }
+      v->name = OPENSSL_strdup(pname);
+      if (v->name == NULL) {
+        goto err;
+      }
+      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, CONF_R_UNABLE_TO_CREATE_NEW_SECTION);
+          goto err;
+        }
+      } else {
+        tv = sv;
+      }
+      if (add_string(conf, tv, v) == 0) {
+        goto err;
+      }
+      v = NULL;
+    }
+  }
+  BUF_MEM_free(buff);
+  OPENSSL_free(section);
+  return 1;
+
+err:
+  BUF_MEM_free(buff);
+  OPENSSL_free(section);
+  if (out_error_line != NULL) {
+    *out_error_line = eline;
+  }
+  snprintf(btmp, sizeof btmp, "%ld", eline);
+  ERR_add_error_data(2, "line ", btmp);
+
+  if (v != NULL) {
+    OPENSSL_free(v->name);
+    OPENSSL_free(v->value);
+    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, ERR_R_SYS_LIB);
+    return 0;
+  }
+
+  ret = NCONF_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, size_t len, void *usr),
+                    void *arg) {
+  int ret;
+  const char *lstart, *tmpend, *p;
+
+  if (list == NULL) {
+    OPENSSL_PUT_ERROR(CONF, CONF_R_LIST_CANNOT_BE_NULL);
+    return 0;
+  }
+
+  lstart = list;
+  for (;;) {
+    if (remove_whitespace) {
+      while (*lstart && OPENSSL_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 (OPENSSL_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;
+  }
+}
+
+int CONF_modules_load_file(const char *filename, const char *appname,
+                           unsigned long flags) {
+  return 1;
+}
+
+char *CONF_get1_default_config_file(void) {
+  return OPENSSL_strdup("No support for Config files in AWS-LC.");
+}
+
+void CONF_modules_free(void) {}
+
+void CONF_modules_unload(int all) {}
+
+void CONF_modules_finish(void) {}
+
+void OPENSSL_config(const char *config_name) {}
+
+void OPENSSL_no_config(void) {}

vendor/aws-lc-sys/aws-lc/crypto/conf/conf_def.h

@@ -0,0 +1,68 @@
+// Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+// This file was historically generated by keysets.pl in OpenSSL.
+//
+// TODO(davidben): Replace it with something more readable.
+
+#define CONF_NUMBER		1
+#define CONF_UPPER		2
+#define CONF_LOWER		4
+#define CONF_UNDER		256
+#define CONF_PUNCTUATION	512
+#define CONF_WS			16
+#define CONF_ESC		32
+#define CONF_QUOTE		64
+#define CONF_COMMENT		128
+#define CONF_EOF		8
+#define CONF_HIGHBIT		4096
+#define CONF_ALPHA		(CONF_UPPER|CONF_LOWER)
+#define CONF_ALPHA_NUMERIC	(CONF_ALPHA|CONF_NUMBER|CONF_UNDER)
+#define CONF_ALPHA_NUMERIC_PUNCT (CONF_ALPHA|CONF_NUMBER|CONF_UNDER| \
+					CONF_PUNCTUATION)
+
+#define KEYTYPES(c)		CONF_type_default
+#define IS_COMMENT(c,a)		(KEYTYPES(c)[(a)&0xff]&CONF_COMMENT)
+#define IS_EOF(c,a)		(KEYTYPES(c)[(a)&0xff]&CONF_EOF)
+#define IS_ESC(c,a)		(KEYTYPES(c)[(a)&0xff]&CONF_ESC)
+#define IS_NUMBER(c,a)		(KEYTYPES(c)[(a)&0xff]&CONF_NUMBER)
+#define IS_WS(c,a)		(KEYTYPES(c)[(a)&0xff]&CONF_WS)
+#define IS_ALPHA_NUMERIC(c,a)	(KEYTYPES(c)[(a)&0xff]&CONF_ALPHA_NUMERIC)
+#define IS_ALPHA_NUMERIC_PUNCT(c,a) \
+				(KEYTYPES(c)[(a)&0xff]&CONF_ALPHA_NUMERIC_PUNCT)
+#define IS_QUOTE(c,a)		(KEYTYPES(c)[(a)&0xff]&CONF_QUOTE)
+
+static const unsigned short CONF_type_default[256]={
+	0x0008,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
+	0x0000,0x0010,0x0010,0x0000,0x0000,0x0010,0x0000,0x0000,
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
+	0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,
+	0x0010,0x0200,0x0040,0x0080,0x0000,0x0200,0x0200,0x0040,
+	0x0000,0x0000,0x0200,0x0200,0x0200,0x0200,0x0200,0x0200,
+	0x0001,0x0001,0x0001,0x0001,0x0001,0x0001,0x0001,0x0001,
+	0x0001,0x0001,0x0000,0x0200,0x0000,0x0000,0x0000,0x0200,
+	0x0200,0x0002,0x0002,0x0002,0x0002,0x0002,0x0002,0x0002,
+	0x0002,0x0002,0x0002,0x0002,0x0002,0x0002,0x0002,0x0002,
+	0x0002,0x0002,0x0002,0x0002,0x0002,0x0002,0x0002,0x0002,
+	0x0002,0x0002,0x0002,0x0000,0x0020,0x0000,0x0200,0x0100,
+	0x0040,0x0004,0x0004,0x0004,0x0004,0x0004,0x0004,0x0004,
+	0x0004,0x0004,0x0004,0x0004,0x0004,0x0004,0x0004,0x0004,
+	0x0004,0x0004,0x0004,0x0004,0x0004,0x0004,0x0004,0x0004,
+	0x0004,0x0004,0x0004,0x0000,0x0200,0x0000,0x0200,0x0000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,0x1000,
+	};

vendor/aws-lc-sys/aws-lc/crypto/conf/conf_test.cc

@@ -0,0 +1,636 @@
+// Copyright (c) 2021, Google Inc.
+// SPDX-License-Identifier: ISC
+
+#include <algorithm>
+#include <string>
+#include <vector>
+#include <map>
+
+#include <openssl/bio.h>
+#include <openssl/conf.h>
+#include "../test/test_util.h"
+
+#include <gtest/gtest.h>
+
+#include "internal.h"
+
+
+// A |CONF| is an unordered list of sections, where each section contains an
+// ordered list of (name, value) pairs.
+using ConfModel =
+    std::map<std::string, std::vector<std::pair<std::string, std::string>>>;
+
+static void ExpectConfEquals(const CONF *conf, const ConfModel &model) {
+  // There is always a default section, even if empty. This is an easy mistake
+  // to make in test data, so test for it.
+  EXPECT_NE(model.find("default"), model.end())
+      << "Model does not have a default section";
+
+  size_t total_values = 0;
+  for (const auto &pair : model) {
+    const std::string &section = pair.first;
+    SCOPED_TRACE(section);
+
+    const STACK_OF(CONF_VALUE) *values =
+        NCONF_get_section(conf, section.c_str());
+    ASSERT_TRUE(values);
+    total_values += pair.second.size();
+
+    EXPECT_EQ(sk_CONF_VALUE_num(values), pair.second.size());
+
+    // If the lengths do not match, still compare up to the smaller of the two,
+    // to aid debugging.
+    size_t min_len = std::min(sk_CONF_VALUE_num(values), pair.second.size());
+    for (size_t i = 0; i < min_len; i++) {
+      SCOPED_TRACE(i);
+      const std::string &name = pair.second[i].first;
+      const std::string &value = pair.second[i].second;
+
+      const CONF_VALUE *v = sk_CONF_VALUE_value(values, i);
+      ASSERT_NE(v, nullptr);
+      EXPECT_EQ(v->section, section);
+      EXPECT_EQ(v->name, name);
+      EXPECT_EQ(v->value, value);
+
+      const char *str = NCONF_get_string(conf, section.c_str(), name.c_str());
+      ASSERT_NE(str, nullptr);
+      EXPECT_EQ(str, value);
+
+      if (section == "default") {
+        // nullptr is interpreted as the default section.
+        str = NCONF_get_string(conf, nullptr, name.c_str());
+        ASSERT_NE(str, nullptr);
+        EXPECT_EQ(str, value);
+      }
+    }
+  }
+
+  // Unrecognized sections must return nullptr.
+  EXPECT_EQ(NCONF_get_section(conf, "must_not_appear_in_tests"), nullptr);
+  EXPECT_EQ(NCONF_get_string(conf, "must_not_appear_in_tests",
+                             "must_not_appear_in_tests"),
+            nullptr);
+  if (!model.empty()) {
+    // Valid section, invalid name.
+    EXPECT_EQ(NCONF_get_string(conf, model.begin()->first.c_str(),
+                               "must_not_appear_in_tests"),
+              nullptr);
+    if (!model.begin()->second.empty()) {
+      // Invalid section, matching valid name in default returns value from
+      // default.
+      auto key = model.begin()->second.front().first.c_str();
+      auto default_value = NCONF_get_string(conf, "default", key);
+      auto retrieved = NCONF_get_string(conf, "must_not_appear_in_tests", key);
+      if (default_value) {
+        EXPECT_EQ(Bytes(retrieved), Bytes(default_value));
+      } else {
+        EXPECT_EQ(retrieved, nullptr);
+      }
+    }
+  }
+
+  // There should not be any other values in |conf|. |conf| currently stores
+  // both sections and values in the same map.
+  EXPECT_EQ(lh_CONF_VALUE_num_items(conf->data), total_values + model.size());
+}
+
+TEST(ConfTest, Parse) {
+  const struct {
+    std::string in;
+    ConfModel model;
+  } kTests[] = {
+      // Test basic parsing.
+      {
+          R"(# Comment
+
+key=value
+
+[section_name]
+key=value2
+)",
+          {
+              {"default", {{"key", "value"}}},
+              {"section_name", {{"key", "value2"}}},
+          },
+      },
+
+      // If a section is listed multiple times, keys add to the existing one.
+      {
+          R"(key1 = value1
+
+[section1]
+key2 = value2
+
+[section2]
+key3 = value3
+
+[default]
+key4 = value4
+
+[section1]
+key5 = value5
+)",
+          {
+              {"default", {{"key1", "value1"}, {"key4", "value4"}}},
+              {"section1", {{"key2", "value2"}, {"key5", "value5"}}},
+              {"section2", {{"key3", "value3"}}},
+          },
+      },
+
+      // Although the CONF parser internally uses a buffer size of 512 bytes to
+      // read one line, it detects truncation and is able to parse long lines.
+      {
+          std::string(1000, 'a') + " = " + std::string(1000, 'b') + "\n",
+          {
+              {"default", {{std::string(1000, 'a'), std::string(1000, 'b')}}},
+          },
+      },
+
+      // Trailing backslashes are line continations.
+      {
+          "key=\\\nvalue\nkey2=foo\\\nbar=baz",
+          {
+              {"default", {{"key", "value"}, {"key2", "foobar=baz"}}},
+          },
+      },
+
+      // To be a line continuation, it must be at the end of the line.
+      {
+          "key=\\\nvalue\nkey2=foo\\ \nbar=baz",
+          {
+              {"default", {{"key", "value"}, {"key2", "foo"}, {"bar", "baz"}}},
+          },
+      },
+
+      // A line continuation without any following line is ignored.
+      {
+          "key=value\\",
+          {
+              {"default", {{"key", "value"}}},
+          },
+      },
+
+      // Values may have embedded whitespace, but leading and trailing
+      // whitespace is dropped.
+      {
+          "key =  \t  foo   \t\t\tbar  \t  ",
+          {
+              {"default", {{"key", "foo   \t\t\tbar"}}},
+          },
+      },
+
+      // Empty sections still end up in the file.
+      {
+          "[section1]\n[section2]\n[section3]\n",
+          {
+              {"default", {}},
+              {"section1", {}},
+              {"section2", {}},
+              {"section3", {}},
+          },
+      },
+
+      // Section names can contain spaces and punctuation.
+      {
+          "[This! Is. A? Section;]\nkey = value",
+          {
+              {"default", {}},
+              {"This! Is. A? Section;", {{"key", "value"}}},
+          },
+      },
+
+      // Trailing data after a section line is ignored.
+      {
+          "[section] key = value\nkey2 = value2\n",
+          {
+              {"default", {}},
+              {"section", {{"key2", "value2"}}},
+          },
+      },
+
+      // Comments may appear within a line. Escapes and quotes, however,
+      // suppress the comment character.
+      {
+          R"(
+key1 = # comment
+key2 = "# not a comment"
+key3 = '# not a comment'
+key4 = `# not a comment`
+key5 = \# not a comment
+)",
+          {
+              {"default",
+               {
+                   {"key1", ""},
+                   {"key2", "# not a comment"},
+                   {"key3", "# not a comment"},
+                   {"key4", "# not a comment"},
+                   {"key5", "# not a comment"},
+               }},
+          },
+      },
+
+      // Quotes may appear in the middle of a string. Inside quotes, escape
+      // sequences like \n are not evaluated. \X always evaluates to X.
+      {
+          R"(
+key1 = mix "of" 'different' `quotes`
+key2 = "`'"
+key3 = "\r\n\b\t\""
+key4 = '\r\n\b\t\''
+key5 = `\r\n\b\t\``
+)",
+          {
+              {"default",
+               {
+                   {"key1", "mix of different quotes"},
+                   {"key2", "`'"},
+                   {"key3", "rnbt\""},
+                   {"key4", "rnbt'"},
+                   {"key5", "rnbt`"},
+               }},
+          },
+      },
+
+      // Outside quotes, escape sequences like \n are evaluated. Unknown escapes
+      // turn into the character.
+      {
+          R"(
+key = \r\n\b\t\"\'\`\z
+)",
+          {
+              {"default",
+               {
+                   {"key", "\r\n\b\t\"'`z"},
+               }},
+          },
+      },
+
+      // Escapes (but not quoting) work inside section names.
+      {
+          "[section\\ name]\nkey = value\n",
+          {
+              {"default", {}},
+              {"section name", {{"key", "value"}}},
+          },
+      },
+
+      // Escapes (but not quoting) are skipped over in key names, but they are
+      // left unevaluated. This is probably a bug.
+      {
+          "key\\ name = value\n",
+          {
+              {"default", {{"key\\ name", "value"}}},
+          },
+      },
+
+      // Keys can specify sections explicitly with ::.
+      {
+          R"(
+[section1]
+default::key1 = value1
+section1::key2 = value2
+section2::key3 = value3
+section1::key4 = value4
+section2::key5 = value5
+default::key6 = value6
+key7 = value7  # section1
+)",
+          {
+              {"default", {{"key1", "value1"}, {"key6", "value6"}}},
+              {"section1",
+               {{"key2", "value2"}, {"key4", "value4"}, {"key7", "value7"}}},
+              {"section2", {{"key3", "value3"}, {"key5", "value5"}}},
+          },
+      },
+
+      // Punctuation is allowed in key names.
+      {
+          "key.1 = value\n",
+          {
+              {"default", {{"key.1", "value"}}},
+          },
+      },
+
+      // Variable references have been readded.
+      {
+          R"(
+key1 = value1
+key2 = $key1
+)",
+          {
+              {
+                  "default",
+                  {{"key1", "value1"}, {"key2", "value1"}},
+              },
+          },
+      },
+
+      // Variable expansion with curly braces ${foo}
+      {
+          R"(
+key1 = value1
+key2 = ${key1}
+)",
+          {
+              {
+                  "default",
+                  {{"key1", "value1"}, {"key2", "value1"}},
+              },
+          },
+      },
+
+      // Variable expansion with parentheses $(foo)
+      {
+          R"(
+key1 = value1
+key2 = $(key1)
+)",
+          {
+              {
+                  "default",
+                  {{"key1", "value1"}, {"key2", "value1"}},
+              },
+          },
+      },
+
+      // Variable expansion with mixed content (prefix and suffix)
+      {
+          R"(
+key1 = middle
+key2 = prefix_${key1}_suffix
+)",
+          {
+              {
+                  "default",
+                  {{"key1", "middle"}, {"key2", "prefix_middle_suffix"}},
+              },
+          },
+      },
+
+      // Multiple variable expansions in one value
+      {
+          R"(
+key1 = hello
+key2 = world
+key3 = $key1 $key2
+)",
+          {
+              {
+                  "default",
+                  {{"key1", "hello"}, {"key2", "world"}, {"key3", "hello world"}},
+              },
+          },
+      },
+
+      // Chained variable expansion
+      {
+          R"(
+key1 = base
+key2 = $key1
+key3 = $key2
+)",
+          {
+              {
+                  "default",
+                  {{"key1", "base"}, {"key2", "base"}, {"key3", "base"}},
+              },
+          },
+      },
+
+      // Cross-section variable reference with ${section::key}
+      {
+          R"(
+[section1]
+key1 = from_section1
+
+[section2]
+key2 = ${section1::key1}
+)",
+          {
+              {"default", {}},
+              {"section1", {{"key1", "from_section1"}}},
+              {"section2", {{"key2", "from_section1"}}},
+          },
+      },
+
+      // Cross-section variable reference with $section::key (no braces)
+      {
+          R"(
+[section1]
+key1 = from_section1
+
+[section2]
+key2 = $section1::key1
+)",
+          {
+              {"default", {}},
+              {"section1", {{"key1", "from_section1"}}},
+              {"section2", {{"key2", "from_section1"}}},
+          },
+      },
+
+      // Cross-section reference to default section
+      {
+          R"(
+key1 = from_default
+
+[section1]
+key2 = ${default::key1}
+)",
+          {
+              {"default", {{"key1", "from_default"}}},
+              {"section1", {{"key2", "from_default"}}},
+          },
+      },
+
+      // Variable name with underscore
+      {
+          R"(
+key_with_underscore = value1
+key2 = $key_with_underscore
+)",
+          {
+              {
+                  "default",
+                  {{"key_with_underscore", "value1"}, {"key2", "value1"}},
+              },
+          },
+      },
+
+      // Variable name with numbers
+      {
+          R"(
+key123 = value1
+key2 = $key123
+)",
+          {
+              {
+                  "default",
+                  {{"key123", "value1"}, {"key2", "value1"}},
+              },
+          },
+      },
+
+      // Variable at start, middle, and end
+      {
+          R"(
+v = X
+start = $v is here
+middle = here $v is
+end = here is $v
+)",
+          {
+              {
+                  "default",
+                  {{"v", "X"},
+                   {"start", "X is here"},
+                   {"middle", "here X is"},
+                   {"end", "here is X"}},
+              },
+          },
+      },
+
+      // Variable referencing same section implicitly
+      {
+          R"(
+[mysection]
+base = myvalue
+derived = $base
+)",
+          {
+              {"default", {}},
+              {"mysection", {{"base", "myvalue"}, {"derived", "myvalue"}}},
+          },
+      },
+
+      // Variable reference with parentheses and cross-section
+      {
+          R"(
+[section1]
+key1 = paren_value
+
+[section2]
+key2 = $(section1::key1)
+)",
+          {
+              {"default", {}},
+              {"section1", {{"key1", "paren_value"}}},
+              {"section2", {{"key2", "paren_value"}}},
+          },
+      },
+
+      // Empty variable expansion (variable with empty value)
+      {
+          R"(
+empty =
+key2 = prefix${empty}suffix
+)",
+          {
+              {
+                  "default",
+                  {{"empty", ""}, {"key2", "prefixsuffix"}},
+              },
+          },
+      },
+  };
+  for (const auto &t : kTests) {
+    SCOPED_TRACE(t.in);
+    bssl::UniquePtr<BIO> bio(BIO_new_mem_buf(t.in.data(), t.in.size()));
+    ASSERT_TRUE(bio);
+    bssl::UniquePtr<CONF> conf(NCONF_new(nullptr));
+    ASSERT_TRUE(conf);
+    ASSERT_TRUE(NCONF_load_bio(conf.get(), bio.get(), nullptr));
+
+    ExpectConfEquals(conf.get(), t.model);
+  }
+
+  const char *kInvalidTests[] = {
+      // Missing equals sign.
+      "key",
+      // Unterminated section heading.
+      "[section",
+      // Section names can only contain alphanumeric characters, punctuation,
+      // and escapes. Quotes are not punctuation.
+      "[\"section\"]",
+      // Keys can only contain alphanumeric characters, punctuaion, and escapes.
+      "key name = value",
+      "\"key\" = value",
+      // Variable expansion: undefined variable.
+      "key = $undefined_var",
+      // Variable expansion: missing closing brace.
+      "key = ${foo",
+      // Variable expansion: missing closing parenthesis.
+      "key = $(foo",
+      // Variable expansion: undefined cross-section variable.
+      "key = ${nonexistent_section::key}",
+      // Unterminated quotes (CONF_R_NO_CLOSE_QUOTE).
+      "key = \"unterminated",
+      "key = 'unterminated",
+      "key = `unterminated",
+  };
+  for (const auto &t : kInvalidTests) {
+    SCOPED_TRACE(t);
+    bssl::UniquePtr<BIO> bio(BIO_new_mem_buf(t, strlen(t)));
+    ASSERT_TRUE(bio);
+    bssl::UniquePtr<CONF> conf(NCONF_new(nullptr));
+    ASSERT_TRUE(conf);
+    EXPECT_FALSE(NCONF_load_bio(conf.get(), bio.get(), nullptr));
+  }
+}
+
+TEST(ConfTest, ParseList) {
+  const struct {
+    const char *list;
+    char sep;
+    bool remove_whitespace;
+    std::vector<std::string> expected;
+  } kTests[] = {
+      {"", ',', /*remove_whitespace=*/0, {""}},
+      {"", ',', /*remove_whitespace=*/1, {""}},
+
+      {" ", ',', /*remove_whitespace=*/0, {" "}},
+      {" ", ',', /*remove_whitespace=*/1, {""}},
+
+      {"hello world", ',', /*remove_whitespace=*/0, {"hello world"}},
+      {"hello world", ',', /*remove_whitespace=*/1, {"hello world"}},
+
+      {" hello world ", ',', /*remove_whitespace=*/0, {" hello world "}},
+      {" hello world ", ',', /*remove_whitespace=*/1, {"hello world"}},
+
+      {"hello,world", ',', /*remove_whitespace=*/0, {"hello", "world"}},
+      {"hello,world", ',', /*remove_whitespace=*/1, {"hello", "world"}},
+
+      {"hello,,world", ',', /*remove_whitespace=*/0, {"hello", "", "world"}},
+      {"hello,,world", ',', /*remove_whitespace=*/1, {"hello", "", "world"}},
+
+      {"\tab cd , , ef gh ",
+       ',',
+       /*remove_whitespace=*/0,
+       {"\tab cd ", " ", " ef gh "}},
+      {"\tab cd , , ef gh ",
+       ',',
+       /*remove_whitespace=*/1,
+       {"ab cd", "", "ef gh"}},
+  };
+  for (const auto& t : kTests) {
+    SCOPED_TRACE(t.list);
+    SCOPED_TRACE(t.sep);
+    SCOPED_TRACE(t.remove_whitespace);
+
+    std::vector<std::string> result;
+    auto append_to_vector = [](const char *elem, size_t len, void *arg) -> int {
+      auto *vec = static_cast<std::vector<std::string> *>(arg);
+      vec->push_back(std::string(elem, len));
+      return 1;
+    };
+    ASSERT_TRUE(CONF_parse_list(t.list, t.sep, t.remove_whitespace,
+                                append_to_vector, &result));
+    EXPECT_EQ(result, t.expected);
+  }
+}
+
+TEST(ConfTest, NoopString) {
+  bssl::UniquePtr<char> string(CONF_get1_default_config_file());
+  EXPECT_STREQ("No support for Config files in AWS-LC.", string.get());
+}

vendor/aws-lc-sys/aws-lc/crypto/conf/internal.h

@@ -0,0 +1,36 @@
+// Copyright (c) 2015, Google Inc.
+// SPDX-License-Identifier: ISC
+
+#ifndef OPENSSL_HEADER_CRYPTO_CONF_INTERNAL_H
+#define OPENSSL_HEADER_CRYPTO_CONF_INTERNAL_H
+
+#include <openssl/base.h>
+
+#include "../lhash/internal.h"
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+
+DEFINE_LHASH_OF(CONF_VALUE)
+
+// CONF_VALUE_new returns a freshly allocated and zeroed |CONF_VALUE|.
+CONF_VALUE *CONF_VALUE_new(void);
+
+// CONF_parse_list takes a list separated by 'sep' and calls |list_cb| giving
+// the start and length of each member, optionally stripping leading and
+// trailing whitespace. This can be used to parse comma separated lists for
+// example. If |list_cb| returns <= 0, then the iteration is halted and that
+// value is returned immediately. Otherwise it returns one. Note that |list_cb|
+// may be called on an empty member.
+OPENSSL_EXPORT int CONF_parse_list(
+    const char *list, char sep, int remove_whitespace,
+    int (*list_cb)(const char *elem, size_t len, void *usr), void *arg);
+
+
+#if defined(__cplusplus)
+}  // extern C
+#endif
+
+#endif  // OPENSSL_HEADER_CRYPTO_CONF_INTERNAL_H