Add m-esr52 at 52.6.0

6 files changed, 703 insertions, 0 deletions

diff --git a/nsprpub/lib/libc/include/Makefile.in b/nsprpub/lib/libc/include/Makefile.in
new file mode 100644
index 000000000..642e0a184
--- /dev/null
+++ b/nsprpub/lib/libc/include/Makefile.in
@@ -0,0 +1,24 @@
+# 
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#! gmake
+
+MOD_DEPTH	= ../../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(MOD_DEPTH)/config/autoconf.mk
+include $(topsrcdir)/config/config.mk
+
+HEADERS = $(wildcard $(srcdir)/*.h)
+
+RELEASE_HEADERS = $(HEADERS)
+RELEASE_HEADERS_DEST = $(RELEASE_INCLUDE_DIR)
+
+include $(topsrcdir)/config/rules.mk
+
+export:: $(HEADERS)
+	$(INSTALL) -m 444 $(HEADERS) $(dist_includedir)
diff --git a/nsprpub/lib/libc/include/README b/nsprpub/lib/libc/include/README
new file mode 100644
index 000000000..2b8521891
--- /dev/null
+++ b/nsprpub/lib/libc/include/README
@@ -0,0 +1,7 @@
+NSPR 2.0 libc functions
+-----------------------
+
+Last edited: AOF 04 March 1997
+
+This directory contains the API for various libc-types of functions.
+
diff --git a/nsprpub/lib/libc/include/plbase64.h b/nsprpub/lib/libc/include/plbase64.h
new file mode 100644
index 000000000..7d17ea78f
--- /dev/null
+++ b/nsprpub/lib/libc/include/plbase64.h
@@ -0,0 +1,76 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _plbase64_h
+#define _plbase64_h
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+/*
+ * PL_Base64Encode
+ *
+ * This routine encodes the data pointed to by the "src" parameter using the
+ * base64 algorithm, and returns a pointer to the result.  If the "srclen"
+ * parameter is not zero, it specifies the length of the source data.  If it
+ * is zero, the source data is assumed to be null-terminated, and PL_strlen
+ * is used to determine the source length.  If the "dest" parameter is not
+ * null, it is assumed to point to a buffer of sufficient size (which may be
+ * calculated: ((srclen + 2)/3)*4) into which the encoded data is placed 
+ * (without any termination).  If the "dest" parameter is null, a buffer is
+ * allocated from the heap to hold the encoded data, and the result *will*
+ * be terminated with an extra null character.  It is the caller's 
+ * responsibility to free the result when it is allocated.  A null is returned 
+ * if the allocation fails.
+ *
+ * NOTE: when calculating ((srclen + 2)/3)*4), first ensure that
+ *     srclen <= (PR_UINT32_MAX/4) * 3
+ * to avoid PRUint32 overflow.
+ */
+
+PR_EXTERN(char *)
+PL_Base64Encode
+(
+    const char *src,
+    PRUint32    srclen,
+    char       *dest
+);
+
+/*
+ * PL_Base64Decode
+ *
+ * This routine decodes the data pointed to by the "src" parameter using
+ * the base64 algorithm, and returns a pointer to the result.  The source
+ * may either include or exclude any trailing '=' characters.  If the
+ * "srclen" parameter is not zero, it specifies the length of the source
+ * data.  If it is zero, PL_strlen will be used to determine the source
+ * length.  If the "dest" parameter is not null, it is assumed to point to
+ * a buffer of sufficient size (which may be calculated: (srclen * 3)/4
+ * when srclen includes the '=' characters) into which the decoded data
+ * is placed (without any termination).  If the "dest" parameter is null,
+ * a buffer is allocated from the heap to hold the decoded data, and the
+ * result *will* be terminated with an extra null character.  It is the
+ * caller's responsibility to free the result when it is allocated.  A null
+ * is retuned if the allocation fails, or if the source is not well-coded.
+ *
+ * NOTE: when calculating (srclen * 3)/4, first ensure that 
+ *     srclen <= PR_UINT32_MAX/3
+ * to avoid PRUint32 overflow.  Alternatively, calculate
+ *     (srclen/4) * 3 + ((srclen%4) * 3)/4
+ * which is equivalent but doesn't overflow for any value of srclen.
+ */
+
+PR_EXTERN(char *)
+PL_Base64Decode
+(
+    const char *src,
+    PRUint32    srclen,
+    char       *dest
+);
+
+PR_END_EXTERN_C
+
+#endif /* _plbase64_h */
diff --git a/nsprpub/lib/libc/include/plerror.h b/nsprpub/lib/libc/include/plerror.h
new file mode 100644
index 000000000..cd85dd3f8
--- /dev/null
+++ b/nsprpub/lib/libc/include/plerror.h
@@ -0,0 +1,34 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** File:        plerror.h
+** Description: Simple routine to print translate the calling thread's
+**              error numbers and print them.
+*/
+
+#if defined(PLERROR_H)
+#else
+#define PLERROR_H
+
+#include "prio.h"
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+/*
+** Print the messages to "syserr" prepending 'msg' if not NULL.
+*/
+PR_EXTERN(void) PL_PrintError(const char *msg);
+
+/*
+** Print the messages to specified output file prepending 'msg' if not NULL.
+*/
+PR_EXTERN(void) PL_FPrintError(PRFileDesc *output, const char *msg);
+
+PR_END_EXTERN_C
+
+#endif /* defined(PLERROR_H) */
+
+/* plerror.h */
diff --git a/nsprpub/lib/libc/include/plgetopt.h b/nsprpub/lib/libc/include/plgetopt.h
new file mode 100644
index 000000000..19cafa600
--- /dev/null
+++ b/nsprpub/lib/libc/include/plgetopt.h
@@ -0,0 +1,125 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** File:          plgetopt.h
+** Description:   utilities to parse argc/argv
+*/
+
+#if defined(PLGETOPT_H_)
+#else
+#define PLGETOPT_H_
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+typedef struct PLOptionInternal PLOptionInternal; 
+
+typedef enum
+{
+        PL_OPT_OK,              /* all's well with the option */
+        PL_OPT_EOL,             /* end of options list */
+        PL_OPT_BAD              /* invalid option (and value) */
+} PLOptStatus;
+
+typedef struct PLLongOpt
+{
+    const char * longOptName;   /* long option name string                  */
+    PRIntn       longOption;    /* value put in PLOptState for this option. */
+    PRBool       valueRequired; /* If option name not followed by '=',      */
+                                /* value is the next argument from argv.    */
+} PLLongOpt;
+
+typedef struct PLOptState
+{
+    char option;                /* the name of the option */
+    const char *value;          /* the value of that option | NULL */
+
+    PLOptionInternal *internal; /* private processing state */
+
+    PRIntn   longOption;        /* value from PLLongOpt put here */
+    PRIntn   longOptIndex;      /* index into caller's array of PLLongOpts */
+} PLOptState;
+
+/*
+ * PL_CreateOptState
+ *
+ * The argument "options" points to a string of single-character option 
+ * names.  Option names that may have an option argument value must be 
+ * followed immediately by a ':' character.  
+ */
+PR_EXTERN(PLOptState*) PL_CreateOptState(
+        PRIntn argc, char **argv, const char *options);
+
+/* 
+ * PL_CreateLongOptState
+ *
+ * Alternative to PL_CreateOptState.  
+ * Allows caller to specify BOTH a string of single-character option names, 
+ * AND an array of structures describing "long" (keyword) option names.  
+ * The array is terminated by a structure in which longOptName is NULL.  
+ * Long option values (arguments) may always be given as "--name=value".
+ * If PLLongOpt.valueRequired is not PR_FALSE, and the option name was not 
+ * followed by '=' then the next argument from argv is taken as the value.  
+ */
+PR_EXTERN(PLOptState*) PL_CreateLongOptState(
+        PRIntn argc, char **argv, const char *options, 
+        const PLLongOpt *longOpts);
+/*
+ * PL_DestroyOptState
+ *
+ * Call this to destroy the PLOptState returned from PL_CreateOptState or
+ * PL_CreateLongOptState.
+ */
+PR_EXTERN(void) PL_DestroyOptState(PLOptState *opt);
+
+/*
+ * PL_GetNextOpt
+ *
+ * When this function returns PL_OPT_OK, 
+ * - opt->option will hold the single-character option name that was parsed, 
+ *   or zero.  
+ * When opt->option is zero, the token parsed was either a "long" (keyword) 
+ *   option or a positional parameter.  
+ * For a positional parameter, 
+ * - opt->longOptIndex will contain -1, and
+ * - opt->value will point to the positional parameter string.
+ * For a long option name, 
+ * - opt->longOptIndex will contain the non-negative index of the 
+ *   PLLongOpt structure in the caller's array of PLLongOpt structures 
+ *   corresponding to the long option name, and 
+ * For a single-character or long option, 
+ * - opt->longOption will contain the value of the single-character option
+ *   name, or the value of the longOption from the PLLongOpt structure
+ *   for that long option.  See notes below.
+ * - opt->value will point to the argument option string, or will
+ *   be NULL if option does not require argument.  If option requires
+ *   argument but it is not provided, PL_OPT_BAD is returned.
+ * When opt->option is non-zero, 
+ * - opt->longOptIndex will be -1
+ * When this function returns PL_OPT_EOL, or PL_OPT_BAD, the contents of
+ *   opt are undefined.
+ *
+ * Notes: It is possible to ignore opt->option, and always look at 
+ *   opt->longOption instead.  opt->longOption will contain the same value
+ *   as opt->option for single-character option names, and will contain the
+ *   value of longOption from the PLLongOpt structure for long option names.
+ * This means that it is possible to equivalence long option names to 
+ *   single character names by giving the longOption in the PLLongOpt struct
+ *   the same value as the single-character option name.  
+ * For long options that are NOT intended to be equivalent to any single-
+ *   character option, the longOption value should be chosen to not match 
+ *   any possible single character name.  It might be advisable to choose
+ *   longOption values greater than 0xff for such long options.
+ */
+PR_EXTERN(PLOptStatus) PL_GetNextOpt(PLOptState *opt);
+
+PR_END_EXTERN_C
+
+#endif /* defined(PLGETOPT_H_) */
+
+/* plgetopt.h */
+
diff --git a/nsprpub/lib/libc/include/plstr.h b/nsprpub/lib/libc/include/plstr.h
new file mode 100644
index 000000000..57814c704
--- /dev/null
+++ b/nsprpub/lib/libc/include/plstr.h
@@ -0,0 +1,437 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _plstr_h
+#define _plstr_h
+
+/*
+ * plstr.h
+ *
+ * This header file exports the API to the NSPR portable library or string-
+ * handling functions.  
+ * 
+ * This API was not designed as an "optimal" or "ideal" string library; it 
+ * was based on the good ol' unix string.3 functions, and was written to
+ *
+ *  1) replace the libc functions, for cross-platform consistency, 
+ *  2) complete the API on platforms lacking common functions (e.g., 
+ *     strcase*), and
+ *  3) to implement some obvious "closure" functions that I've seen
+ *     people hacking around in our code.
+ *
+ * Point number three largely means that most functions have an "strn"
+ * limited-length version, and all comparison routines have a non-case-
+ * sensitive version available.
+ */
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+/*
+ * PL_strlen
+ *
+ * Returns the length of the provided string, not including the trailing '\0'.
+ */
+
+PR_EXTERN(PRUint32)
+PL_strlen(const char *str);
+
+/*
+ * PL_strnlen
+ *
+ * Returns the length of the provided string, not including the trailing '\0',
+ * up to the indicated maximum.  The string will not be examined beyond the
+ * maximum; if no terminating '\0' is found, the maximum will be returned.
+ */
+
+PR_EXTERN(PRUint32)
+PL_strnlen(const char *str, PRUint32 max);
+
+/*
+ * PL_strcpy
+ *
+ * Copies the source string, up to and including the trailing '\0', into the
+ * destination buffer.  It does not (can not) verify that the destination
+ * buffer is large enough.  It returns the "dest" argument.
+ */
+
+PR_EXTERN(char *)
+PL_strcpy(char *dest, const char *src);
+
+/*
+ * PL_strncpy
+ *
+ * Copies the source string into the destination buffer, up to and including
+ * the trailing '\0' or up to and including the max'th character, whichever
+ * comes first.  It does not (can not) verify that the destination buffer is
+ * large enough.  If the source string is longer than the maximum length,
+ * the result will *not* be null-terminated (JLRU).
+ */
+
+PR_EXTERN(char *)
+PL_strncpy(char *dest, const char *src, PRUint32 max);
+
+/*
+ * PL_strncpyz
+ *
+ * Copies the source string into the destination buffer, up to and including 
+ * the trailing '\0' or up but not including the max'th character, whichever 
+ * comes first.  It does not (can not) verify that the destination buffer is
+ * large enough.  The destination string is always terminated with a '\0',
+ * unlike the traditional libc implementation.  It returns the "dest" argument.
+ *
+ * NOTE: If you call this with a source "abcdefg" and a max of 5, the 
+ * destination will end up with "abcd\0" (i.e., its strlen length will be 4)!
+ *
+ * This means you can do this:
+ *
+ *     char buffer[ SOME_SIZE ];
+ *     PL_strncpyz(buffer, src, sizeof(buffer));
+ *
+ * and the result will be properly terminated.
+ */
+
+PR_EXTERN(char *)
+PL_strncpyz(char *dest, const char *src, PRUint32 max);
+
+/*
+ * PL_strdup
+ *
+ * Returns a pointer to a malloc'd extent of memory containing a duplicate
+ * of the argument string.  The size of the allocated extent is one greater
+ * than the length of the argument string, because of the terminator.  A
+ * null argument, like a zero-length argument, will result in a pointer to
+ * a one-byte extent containing the null value.  This routine returns null
+ * upon malloc failure.
+ */
+
+PR_EXTERN(char *)
+PL_strdup(const char *s);
+
+/*
+ * PL_strfree
+ *
+ * Free memory allocated by PL_strdup
+ */
+
+PR_EXTERN(void)
+PL_strfree(char *s);
+
+/*
+ * PL_strndup
+ *
+ * Returns a pointer to a malloc'd extent of memory containing a duplicate
+ * of the argument string, up to the maximum specified.  If the argument
+ * string has a length greater than the value of the specified maximum, the
+ * return value will be a pointer to an extent of memory of length one
+ * greater than the maximum specified.  A null string, a zero-length string,
+ * or a zero maximum will all result in a pointer to a one-byte extent
+ * containing the null value.  This routine returns null upon malloc failure.
+ */
+
+PR_EXTERN(char *)
+PL_strndup(const char *s, PRUint32 max);
+
+/*
+ * PL_strcat
+ *
+ * Appends a copy of the string pointed to by the second argument to the
+ * end of the string pointed to by the first.  The destination buffer is
+ * not (can not be) checked for sufficient size.  A null destination
+ * argument returns null; otherwise, the first argument is returned.
+ */
+
+PR_EXTERN(char *)
+PL_strcat(char *dst, const char *src);
+
+/*
+ * PL_strncat
+ *
+ * Appends a copy of the string pointed to by the second argument, up to
+ * the maximum size specified, to the end of the string pointed to by the
+ * first.  The destination buffer is not (can not be) checked for sufficient
+ * size.  A null destination argument returns null; otherwise, the first 
+ * argument is returned.  If the maximum size limits the copy, then the
+ * result will *not* be null-terminated (JLRU).  A null destination
+ * returns null; otherwise, the destination argument is returned.
+ */
+
+PR_EXTERN(char *)
+PL_strncat(char *dst, const char *src, PRUint32 max);
+
+/*
+ * PL_strcatn
+ *
+ * Appends a copy of the string pointed to by the third argument, to the
+ * end of the string pointed to by the first.  The second argument specifies
+ * the maximum size of the destination buffer, including the null termination.
+ * If the existing string in dst is longer than the max, no action is taken.
+ * The resulting string will be null-terminated.  A null destination returns
+ * null; otherwise, the destination argument is returned.
+ */
+
+PR_EXTERN(char *)
+PL_strcatn(char *dst, PRUint32 max, const char *src);
+
+/*
+ * PL_strcmp
+ *
+ * Returns an integer, the sign of which -- positive, zero, or negative --
+ * reflects the lexical sorting order of the two strings indicated.  The
+ * result is positive if the first string comes after the second.  The
+ * NSPR implementation is not i18n.
+ */
+
+PR_EXTERN(PRIntn)
+PL_strcmp(const char *a, const char *b);
+
+/*
+ * PL_strncmp
+ * 
+ * Returns an integer, the sign of which -- positive, zero, or negative --
+ * reflects the lexical sorting order of the two strings indicated, up to
+ * the maximum specified.  The result is positive if the first string comes 
+ * after the second.  The NSPR implementation is not i18n.  If the maximum
+ * is zero, only the existance or non-existance (pointer is null) of the
+ * strings is compared.
+ */
+
+PR_EXTERN(PRIntn)
+PL_strncmp(const char *a, const char *b, PRUint32 max);
+
+/*
+ * PL_strcasecmp
+ *
+ * Returns an integer, the sign of which -- positive, zero or negative --
+ * reflects the case-insensitive lexical sorting order of the two strings
+ * indicated.  The result is positive if the first string comes after the 
+ * second.  The NSPR implementation is not i18n.
+ */
+
+PR_EXTERN(PRIntn)
+PL_strcasecmp(const char *a, const char *b);
+
+/*
+ * PL_strncasecmp
+ *
+ * Returns an integer, the sign of which -- positive, zero or negative --
+ * reflects the case-insensitive lexical sorting order of the first n characters
+ * of the two strings indicated.  The result is positive if the first string comes 
+ * after the second.  The NSPR implementation is not i18n.
+ */
+
+PR_EXTERN(PRIntn)
+PL_strncasecmp(const char *a, const char *b, PRUint32 max);
+
+/*
+ * PL_strchr
+ *
+ * Returns a pointer to the first instance of the specified character in the
+ * provided string.  It returns null if the character is not found, or if the
+ * provided string is null.  The character may be the null character.
+ */
+
+PR_EXTERN(char *)
+PL_strchr(const char *s, char c);
+
+/*
+ * PL_strrchr
+ *
+ * Returns a pointer to the last instance of the specified character in the
+ * provided string.  It returns null if the character is not found, or if the
+ * provided string is null.  The character may be the null character.
+ */
+
+PR_EXTERN(char *)
+PL_strrchr(const char *s, char c);
+
+/*
+ * PL_strnchr
+ * 
+ * Returns a pointer to the first instance of the specified character within the
+ * first n characters of the provided string.  It returns null if the character
+ * is not found, or if the provided string is null.  The character may be the
+ * null character.
+ */
+
+PR_EXTERN(char *)
+PL_strnchr(const char *s, char c, PRUint32 n);
+
+/*
+ * PL_strnrchr
+ *
+ * Returns a pointer to the last instance of the specified character within the
+ * first n characters of the provided string.  It returns null if the character is
+ * not found, or if the provided string is null.  The character may be the null
+ * character.
+ */
+
+PR_EXTERN(char *)
+PL_strnrchr(const char *s, char c, PRUint32 n);
+
+/*
+ * NOTE: Looking for strcasechr, strcaserchr, strncasechr, or strncaserchr?
+ * Use strpbrk, strprbrk, strnpbrk or strnprbrk.
+ */
+
+/*
+ * PL_strpbrk
+ *
+ * Returns a pointer to the first instance in the first string of any character
+ * (not including the terminating null character) of the second string.  It returns
+ * null if either string is null.
+ */
+
+PR_EXTERN(char *)
+PL_strpbrk(const char *s, const char *list);
+
+/*
+ * PL_strprbrk
+ *
+ * Returns a pointer to the last instance in the first string of any character
+ * (not including the terminating null character) of the second string.  It returns
+ * null if either string is null.
+ */
+
+PR_EXTERN(char *)
+PL_strprbrk(const char *s, const char *list);
+
+/*
+ * PL_strnpbrk
+ *
+ * Returns a pointer to the first instance (within the first n characters) of any
+ * character (not including the terminating null character) of the second string.
+ * It returns null if either string is null.
+ */
+
+PR_EXTERN(char *)
+PL_strnpbrk(const char *s, const char *list, PRUint32 n);
+
+/*
+ * PL_strnprbrk
+ *
+ * Returns a pointer to the last instance (within the first n characters) of any
+ * character (not including the terminating null character) of the second string.
+ * It returns null if either string is null.
+ */
+
+PR_EXTERN(char *)
+PL_strnprbrk(const char *s, const char *list, PRUint32 n);
+
+/*
+ * PL_strstr
+ *
+ * Returns a pointer to the first instance of the little string within the
+ * big one.  It returns null if either string is null.
+ */
+
+PR_EXTERN(char *)
+PL_strstr(const char *big, const char *little);
+
+/*
+ * PL_strrstr
+ *
+ * Returns a pointer to the last instance of the little string within the big one.
+ * It returns null if either string is null.
+ */
+
+PR_EXTERN(char *)
+PL_strrstr(const char *big, const char *little);
+
+/*
+ * PL_strnstr
+ *
+ * Returns a pointer to the first instance of the little string within the first
+ * n characters of the big one.  It returns null if either string is null.  It
+ * returns null if the length of the little string is greater than n.
+ */
+
+PR_EXTERN(char *)
+PL_strnstr(const char *big, const char *little, PRUint32 n);
+
+/*
+ * PL_strnrstr
+ *
+ * Returns a pointer to the last instance of the little string within the first
+ * n characters of the big one.  It returns null if either string is null.  It
+ * returns null if the length of the little string is greater than n.
+ */
+
+PR_EXTERN(char *)
+PL_strnrstr(const char *big, const char *little, PRUint32 max);
+
+/*
+ * PL_strcasestr
+ *
+ * Returns a pointer to the first instance of the little string within the big one,
+ * ignoring case.  It returns null if either string is null.
+ */
+
+PR_EXTERN(char *)
+PL_strcasestr(const char *big, const char *little);
+
+/*
+ * PL_strcaserstr
+ *
+ * Returns a pointer to the last instance of the little string within the big one,
+ * ignoring case.  It returns null if either string is null.
+ */
+
+PR_EXTERN(char *)
+PL_strcaserstr(const char *big, const char *little);
+
+/*
+ * PL_strncasestr
+ *
+ * Returns a pointer to the first instance of the little string within the first
+ * n characters of the big one, ignoring case.  It returns null if either string is 
+ * null.  It returns null if the length of the little string is greater than n.
+ */
+
+PR_EXTERN(char *)
+PL_strncasestr(const char *big, const char *little, PRUint32 max);
+
+/*
+ * PL_strncaserstr
+ *
+ * Returns a pointer to the last instance of the little string within the first
+ * n characters of the big one, ignoring case.  It returns null if either string is
+ * null.  It returns null if the length of the little string is greater than n.
+ */
+
+PR_EXTERN(char *)
+PL_strncaserstr(const char *big, const char *little, PRUint32 max);
+
+/*
+ * PL_strtok_r
+ *
+ * Splits the string s1 into tokens, separated by one or more characters
+ * from the separator string s2.  The argument lasts points to a
+ * user-supplied char * pointer in which PL_strtok_r stores information
+ * for it to continue scanning the same string.
+ *
+ * In the first call to PL_strtok_r, s1 points to a string and the value
+ * of *lasts is ignored.  PL_strtok_r returns a pointer to the first
+ * token, writes '\0' into the character following the first token, and
+ * updates *lasts.
+ *
+ * In subsequent calls, s1 is null and lasts must stay unchanged from the
+ * previous call.  The separator string s2 may be different from call to
+ * call.  PL_strtok_r returns a pointer to the next token in s1.  When no
+ * token remains in s1, PL_strtok_r returns null.
+ */
+
+PR_EXTERN(char *)
+PL_strtok_r(char *s1, const char *s2, char **lasts);
+
+/*
+ * Things not (yet?) included: strspn/strcspn, strsep.
+ * memchr, memcmp, memcpy, memccpy, index, rindex, bcmp, bcopy, bzero.
+ * Any and all i18n/l10n stuff.
+ */
+
+PR_END_EXTERN_C
+
+#endif /* _plstr_h */