The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/nsprpub/lib/libc/src/strstr.c	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,85 @@
     1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "plstr.h"
    1.10 +#include <string.h>
    1.11 +
    1.12 +PR_IMPLEMENT(char *)
    1.13 +PL_strstr(const char *big, const char *little)
    1.14 +{
    1.15 +    if( ((const char *)0 == big) || ((const char *)0 == little) ) return (char *)0;
    1.16 +    if( ((char)0 == *big) || ((char)0 == *little) ) return (char *)0;
    1.17 +
    1.18 +    return strstr(big, little);
    1.19 +}
    1.20 +
    1.21 +PR_IMPLEMENT(char *)
    1.22 +PL_strrstr(const char *big, const char *little)
    1.23 +{
    1.24 +    const char *p;
    1.25 +    size_t ll;
    1.26 +    size_t bl;
    1.27 +
    1.28 +    if( ((const char *)0 == big) || ((const char *)0 == little) ) return (char *)0;
    1.29 +    if( ((char)0 == *big) || ((char)0 == *little) ) return (char *)0;
    1.30 +
    1.31 +    ll = strlen(little);
    1.32 +    bl = strlen(big);
    1.33 +    if( bl < ll ) return (char *)0;
    1.34 +    p = &big[ bl - ll ];
    1.35 +
    1.36 +    for( ; p >= big; p-- )
    1.37 +        if( *little == *p )
    1.38 +            if( 0 == strncmp(p, little, ll) )
    1.39 +                return (char *)p;
    1.40 +
    1.41 +    return (char *)0;
    1.42 +}
    1.43 +
    1.44 +PR_IMPLEMENT(char *)
    1.45 +PL_strnstr(const char *big, const char *little, PRUint32 max)
    1.46 +{
    1.47 +    size_t ll;
    1.48 +
    1.49 +    if( ((const char *)0 == big) || ((const char *)0 == little) ) return (char *)0;
    1.50 +    if( ((char)0 == *big) || ((char)0 == *little) ) return (char *)0;
    1.51 +
    1.52 +    ll = strlen(little);
    1.53 +    if( ll > (size_t)max ) return (char *)0;
    1.54 +    max -= (PRUint32)ll;
    1.55 +    max++;
    1.56 +
    1.57 +    for( ; max && *big; big++, max-- )
    1.58 +        if( *little == *big )
    1.59 +            if( 0 == strncmp(big, little, ll) )
    1.60 +                return (char *)big;
    1.61 +
    1.62 +    return (char *)0;
    1.63 +}
    1.64 +
    1.65 +PR_IMPLEMENT(char *)
    1.66 +PL_strnrstr(const char *big, const char *little, PRUint32 max)
    1.67 +{
    1.68 +    const char *p;
    1.69 +    size_t ll;
    1.70 +
    1.71 +    if( ((const char *)0 == big) || ((const char *)0 == little) ) return (char *)0;
    1.72 +    if( ((char)0 == *big) || ((char)0 == *little) ) return (char *)0;
    1.73 +
    1.74 +    ll = strlen(little);
    1.75 +
    1.76 +    for( p = big; max && *p; p++, max-- )
    1.77 +        ;
    1.78 +
    1.79 +    p -= ll;
    1.80 +    if( p < big ) return (char *)0;
    1.81 +
    1.82 +    for( ; p >= big; p-- )
    1.83 +        if( *little == *p )
    1.84 +            if( 0 == strncmp(p, little, ll) )
    1.85 +                return (char *)p;
    1.86 +
    1.87 +    return (char *)0;
    1.88 +}