diff options
Diffstat (limited to 'source3/lib/util_str.c')
| -rw-r--r-- | source3/lib/util_str.c | 281 |
1 files changed, 152 insertions, 129 deletions
diff --git a/source3/lib/util_str.c b/source3/lib/util_str.c index a25043df78..58718f395a 100644 --- a/source3/lib/util_str.c +++ b/source3/lib/util_str.c @@ -462,7 +462,7 @@ char *skip_string(char *buf,size_t n) { while (n--) buf += strlen(buf) + 1; - return buf; + return(buf); } /******************************************************************* @@ -733,21 +733,69 @@ size_t count_chars(const char *s,char c) return(count); } +/******************************************************************* +Return True if a string consists only of one particular character. +********************************************************************/ +BOOL str_is_all(const char *s,char c) +{ + if(s == NULL) + return False; + if(!*s) + return False; + +#if !defined(KANJI_WIN95_COMPATIBILITY) + /* + * For completeness we should put in equivalent code for code pages + * 949 (Korean hangul) and 950 (Big5 Traditional Chinese) here - but + * doubt anyone wants Samba to behave differently from Win95 and WinNT + * here. They both treat full width ascii characters as case senstive + * filenames (ie. they don't do the work we do here). + * JRA. + */ + + if(lp_client_code_page() == KANJI_CODEPAGE) + { + /* Win95 treats full width ascii characters as case sensitive. */ + while (*s) + { + if (is_shift_jis (*s)) + s += 2; + else + { + if (*s != c) + return False; + s++; + } + } + } + else +#endif /* KANJI_WIN95_COMPATIBILITY */ + { + while (*s) + { + size_t skip = skip_multibyte_char( *s ); + if( skip != 0 ) + s += skip; + else { + if (*s != c) + return False; + s++; + } + } + } + return True; +} /******************************************************************* safe string copy into a known length string. maxlength does not include the terminating zero. ********************************************************************/ + char *safe_strcpy(char *dest,const char *src, size_t maxlength) { size_t len; - if (maxlength == 0) - { - return dest; - } - if (!dest) { DEBUG(0,("ERROR: NULL dest in safe_strcpy\n")); return NULL; @@ -762,7 +810,7 @@ char *safe_strcpy(char *dest,const char *src, size_t maxlength) if (len > maxlength) { DEBUG(0,("ERROR: string overflow by %d in safe_strcpy [%.50s]\n", - len-maxlength, src)); + (int)(len-maxlength), src)); len = maxlength; } @@ -775,6 +823,7 @@ char *safe_strcpy(char *dest,const char *src, size_t maxlength) safe string cat into a string. maxlength does not include the terminating zero. ********************************************************************/ + char *safe_strcat(char *dest, const char *src, size_t maxlength) { size_t src_len, dest_len; @@ -793,7 +842,7 @@ char *safe_strcat(char *dest, const char *src, size_t maxlength) if (src_len + dest_len > maxlength) { DEBUG(0,("ERROR: string overflow by %d in safe_strcat [%.50s]\n", - src_len + dest_len - maxlength, src)); + (int)(src_len + dest_len - maxlength), src)); src_len = maxlength - dest_len; } @@ -802,28 +851,48 @@ char *safe_strcat(char *dest, const char *src, size_t maxlength) return dest; } -/**************************************************************************** -this is a safer strcpy(), meant to prevent core dumps when nasty things happen -****************************************************************************/ -char *StrCpy(char *dest,const char *src) +/******************************************************************* + Paranoid strcpy into a buffer of given length (includes terminating + zero. Strips out all but 'a-Z0-9' and replaces with '_'. Deliberately + does *NOT* check for multibyte characters. Don't change it ! +********************************************************************/ + +char *alpha_strcpy(char *dest, const char *src, size_t maxlength) { - char *d = dest; + size_t len, i; - /* I don't want to get lazy with these ... */ - SMB_ASSERT(dest && src); + if (!dest) { + DEBUG(0,("ERROR: NULL dest in alpha_strcpy\n")); + return NULL; + } - if (!dest) return(NULL); - if (!src) { - *dest = 0; - return(dest); - } - while ((*d++ = *src++)) ; - return(dest); + if (!src) { + *dest = 0; + return dest; + } + + len = strlen(src); + if (len >= maxlength) + len = maxlength - 1; + + for(i = 0; i < len; i++) { + int val = (src[i] & 0xff); + if(isupper(val) ||islower(val) || isdigit(val)) + dest[i] = src[i]; + else + dest[i] = '_'; + } + + dest[i] = '\0'; + + return dest; } /**************************************************************************** -like strncpy but always null terminates. Make sure there is room! + Like strncpy but always null terminates. Make sure there is room! + The variable n should always be one less than the available size. ****************************************************************************/ + char *StrnCpy(char *dest,const char *src,size_t n) { char *d = dest; @@ -837,12 +906,11 @@ char *StrnCpy(char *dest,const char *src,size_t n) return(dest); } - /**************************************************************************** like strncpy but copies up to the character marker. always null terminates. returns a pointer to the character marker in the source string (src). ****************************************************************************/ -char *strncpyn(char *dest, char *src,size_t n, char c) +char *strncpyn(char *dest, const char *src,size_t n, char c) { char *p; size_t str_len; @@ -1003,29 +1071,42 @@ enough room! This routine looks for pattern in s and replaces it with insert. It may do multiple replacements. -any of " ; ' or ` in the insert string are replaced with _ +any of " ; ' $ or ` in the insert string are replaced with _ +if len==0 then no length check is performed ****************************************************************************/ -void string_sub(char *s,const char *pattern,const char *insert) +void string_sub(char *s,const char *pattern,const char *insert, size_t len) { char *p; - size_t ls,lp,li, i; + ssize_t ls,lp,li, i; if (!insert || !pattern || !s) return; - ls = strlen(s); - lp = strlen(pattern); - li = strlen(insert); + ls = (ssize_t)strlen(s); + lp = (ssize_t)strlen(pattern); + li = (ssize_t)strlen(insert); if (!*pattern) return; while (lp <= ls && (p = strstr(s,pattern))) { - memmove(p+li,p+lp,ls + 1 - (PTR_DIFF(p,s) + lp)); + if (len && (ls + (li-lp) >= len)) { + DEBUG(0,("ERROR: string overflow by %d in string_sub(%.50s, %d)\n", + (int)(ls + (li-lp) - len), + pattern, (int)len)); + break; + } + if (li != lp) { + memmove(p+li,p+lp,strlen(p+lp)+1); + } for (i=0;i<li;i++) { switch (insert[i]) { case '`': case '"': case '\'': case ';': + case '$': + case '%': + case '\r': + case '\n': p[i] = '_'; break; default: @@ -1037,26 +1118,44 @@ void string_sub(char *s,const char *pattern,const char *insert) } } +void fstring_sub(char *s,const char *pattern,const char *insert) +{ + string_sub(s, pattern, insert, sizeof(fstring)); +} + +void pstring_sub(char *s,const char *pattern,const char *insert) +{ + string_sub(s, pattern, insert, sizeof(pstring)); +} /**************************************************************************** similar to string_sub() but allows for any character to be substituted. Use with caution! +if len==0 then no length check is performed ****************************************************************************/ -void all_string_sub(char *s,const char *pattern,const char *insert) +void all_string_sub(char *s,const char *pattern,const char *insert, size_t len) { char *p; - size_t ls,lp,li; + ssize_t ls,lp,li; if (!insert || !pattern || !s) return; - ls = strlen(s); - lp = strlen(pattern); - li = strlen(insert); + ls = (ssize_t)strlen(s); + lp = (ssize_t)strlen(pattern); + li = (ssize_t)strlen(insert); if (!*pattern) return; while (lp <= ls && (p = strstr(s,pattern))) { - memmove(p+li,p+lp,ls + 1 - (PTR_DIFF(p,s) + lp)); + if (len && (ls + (li-lp) >= len)) { + DEBUG(0,("ERROR: string overflow by %d in all_string_sub(%.50s, %d)\n", + (int)(ls + (li-lp) - len), + pattern, (int)len)); + break; + } + if (li != lp) { + memmove(p+li,p+lp,strlen(p+lp)+1); + } memcpy(p, insert, li); s = p + li; ls += (li-lp); @@ -1066,38 +1165,6 @@ void all_string_sub(char *s,const char *pattern,const char *insert) /**************************************************************************** splits out the front and back at a separator. ****************************************************************************/ -void split_at_first_component(char *path, char *front, char sep, char *back) -{ - char *p = strchr(path, sep); - - if (p != NULL) - { - *p = 0; - } - if (front != NULL) - { - pstrcpy(front, path); - } - if (p != NULL) - { - if (back != NULL) - { - pstrcpy(back, p+1); - } - *p = sep; - } - else - { - if (back != NULL) - { - back[0] = 0; - } - } -} - -/**************************************************************************** - splits out the front and back at a separator. -****************************************************************************/ void split_at_last_component(char *path, char *front, char sep, char *back) { char *p = strrchr(path, sep); @@ -1116,7 +1183,7 @@ void split_at_last_component(char *path, char *front, char sep, char *back) { pstrcpy(back, p+1); } - *p = sep; + *p = '\\'; } else { @@ -1127,72 +1194,28 @@ void split_at_last_component(char *path, char *front, char sep, char *back) } } -/**************************************************************************** -convert a bit field to a string. if you want multiple bits to be detected -set them first, e.g SV_TYPE_ALL to be "All" or "Full Control" for ACB_INFOs. - -strings are expected to contain their own separators, although the code -below only assumes that separators are spaces. +/**************************************************************************** +write an octal as a string ****************************************************************************/ -char *bit_field_to_str(uint32 type, struct field_info *bs) +char *octal_string(int i) { - static fstring typestr; - int i = 0; - - typestr[0] = 0; - - if (type == 0 || bs == NULL) - { - return NULL; - } - - while (bs[i].str != NULL && type != 0) - { - if (IS_BITS_SET_ALL(bs[i].bits, type)) - { - fstrcat(typestr, bs[i].str); - type &= ~bs[i].bits; - } - i++; - } - - i = strlen(typestr)-1; - if (i > 0 && typestr[i] == ' ') - { - typestr[i] = 0; + static char ret[64]; + if (i == -1) { + return "-1"; } - - return typestr; + slprintf(ret, sizeof(ret), "0%o", i); + return ret; } + /**************************************************************************** -convert an enumeration to a string. first item is the default. +truncate a string at a specified length ****************************************************************************/ -char *enum_field_to_str(uint32 type, struct field_info *bs, BOOL first_default) +char *string_truncate(char *s, int length) { - int i = 0; - - if (bs == NULL) - { - return NULL; + if (s && strlen(s) > length) { + s[length] = 0; } - - while (bs[i].str != NULL && type != 0) - { - if (bs[i].bits == type) - { - return bs[i].str; - } - i++; - } - - /* oops - none found */ - - if (first_default) - { - return bs[0].str; - } - - return NULL; + return s; } |