The branch, master has been updated via 097c5b1 lib: Remove parser code, now replaced with tini parser. from 6243b24 librpc: Remove obsolete idl-deps script.
http://gitweb.samba.org/?p=samba.git;a=shortlog;h=master - Log ----------------------------------------------------------------- commit 097c5b15e26faaee7e861fc6c5574708bdc92b9a Author: Volker Lendecke <v...@samba.org> Date: Fri Aug 15 05:50:48 2014 +0000 lib: Remove parser code, now replaced with tini parser. Signed-off-by: Volker Lendecke <v...@samba.org> Reviewed-by: Jeremy Allison <j...@samba.org> Autobuild-User(master): Jeremy Allison <j...@samba.org> Autobuild-Date(master): Fri Aug 15 20:34:56 CEST 2014 on sn-devel-104 ----------------------------------------------------------------------- Summary of changes: lib/util/params.c | 510 +---------------------------------------------------- 1 files changed, 2 insertions(+), 508 deletions(-) Changeset truncated at 500 lines: diff --git a/lib/util/params.c b/lib/util/params.c index 82c6e89..5ec4fd2 100644 --- a/lib/util/params.c +++ b/lib/util/params.c @@ -78,514 +78,10 @@ * -------------------------------------------------------------------------- ** */ -#include "includes.h" -#include "system/locale.h" +#include "replace.h" +#include "lib/util/samba_util.h" #include "tini.h" -/* -------------------------------------------------------------------------- ** - * Constants... - */ - -#define BUFR_INC 1024 - - -/* we can't use FILE* due to the 256 fd limit - use this cheap hack - instead */ -typedef struct { - char *buf; - char *p; - size_t size; - char *bufr; - int bSize; -} myFILE; - -static int mygetc(myFILE *f) -{ - if (f->p >= f->buf+f->size) return EOF; - /* be sure to return chars >127 as positive values */ - return (int)( *(f->p++) & 0x00FF ); -} - -/* -------------------------------------------------------------------------- ** - * Functions... - */ - -static int EatWhitespace( myFILE *InFile ) - /* ------------------------------------------------------------------------ ** - * Scan past whitespace (see ctype(3C)) and return the first non-whitespace - * character, or newline, or EOF. - * - * Input: InFile - Input source. - * - * Output: The next non-whitespace character in the input stream. - * - * Notes: Because the config files use a line-oriented grammar, we - * explicitly exclude the newline character from the list of - * whitespace characters. - * - Note that both EOF (-1) and the nul character ('\0') are - * considered end-of-file markers. - * - * ------------------------------------------------------------------------ ** - */ - { - int c; - - for( c = mygetc( InFile ); isspace( c ) && ('\n' != c); c = mygetc( InFile ) ) - ; - return( c ); - } /* EatWhitespace */ - -static int EatComment( myFILE *InFile ) - /* ------------------------------------------------------------------------ ** - * Scan to the end of a comment. - * - * Input: InFile - Input source. - * - * Output: The character that marks the end of the comment. Normally, - * this will be a newline, but it *might* be an EOF. - * - * Notes: Because the config files use a line-oriented grammar, we - * explicitly exclude the newline character from the list of - * whitespace characters. - * - Note that both EOF (-1) and the nul character ('\0') are - * considered end-of-file markers. - * - * ------------------------------------------------------------------------ ** - */ - { - int c; - - for( c = mygetc( InFile ); ('\n'!=c) && (EOF!=c) && (c>0); c = mygetc( InFile ) ) - ; - return( c ); - } /* EatComment */ - -/***************************************************************************** - * Scan backards within a string to discover if the last non-whitespace - * character is a line-continuation character ('\\'). - * - * Input: line - A pointer to a buffer containing the string to be - * scanned. - * pos - This is taken to be the offset of the end of the - * string. This position is *not* scanned. - * - * Output: The offset of the '\\' character if it was found, or -1 to - * indicate that it was not. - * - *****************************************************************************/ - -static int Continuation(char *line, int pos ) -{ - pos--; - while( (pos >= 0) && isspace((int)line[pos])) - pos--; - - return (((pos >= 0) && ('\\' == line[pos])) ? pos : -1 ); -} - - -static bool Section( myFILE *InFile, bool (*sfunc)(const char *, void *), void *userdata ) - /* ------------------------------------------------------------------------ ** - * Scan a section name, and pass the name to function sfunc(). - * - * Input: InFile - Input source. - * sfunc - Pointer to the function to be called if the section - * name is successfully read. - * - * Output: true if the section name was read and true was returned from - * <sfunc>. false if <sfunc> failed or if a lexical error was - * encountered. - * - * ------------------------------------------------------------------------ ** - */ - { - int c; - int i; - int end; - const char *func = "params.c:Section() -"; - - i = 0; /* <i> is the offset of the next free byte in bufr[] and */ - end = 0; /* <end> is the current "end of string" offset. In most */ - /* cases these will be the same, but if the last */ - /* character written to bufr[] is a space, then <end> */ - /* will be one less than <i>. */ - - c = EatWhitespace( InFile ); /* We've already got the '['. Scan */ - /* past initial white space. */ - - while( (EOF != c) && (c > 0) ) - { - - /* Check that the buffer is big enough for the next character. */ - if( i > (InFile->bSize - 2) ) - { - char *tb; - - tb = talloc_realloc(InFile, InFile->bufr, char, InFile->bSize + BUFR_INC); - if( NULL == tb ) - { - DEBUG(0, ("%s Memory re-allocation failure.", func) ); - return( false ); - } - InFile->bufr = tb; - InFile->bSize += BUFR_INC; - } - - /* Handle a single character. */ - switch( c ) - { - case ']': /* Found the closing bracket. */ - InFile->bufr[end] = '\0'; - if( 0 == end ) /* Don't allow an empty name. */ - { - DEBUG(0, ("%s Empty section name in configuration file.\n", func )); - return( false ); - } - if( !sfunc(InFile->bufr,userdata) ) /* Got a valid name. Deal with it. */ - return( false ); - (void)EatComment( InFile ); /* Finish off the line. */ - return( true ); - - case '\n': /* Got newline before closing ']'. */ - i = Continuation( InFile->bufr, i ); /* Check for line continuation. */ - if( i < 0 ) - { - InFile->bufr[end] = '\0'; - DEBUG(0, ("%s Badly formed line in configuration file: %s\n", - func, InFile->bufr )); - return( false ); - } - end = ( (i > 0) && (' ' == InFile->bufr[i - 1]) ) ? (i - 1) : (i); - c = mygetc( InFile ); /* Continue with next line. */ - break; - - default: /* All else are a valid name chars. */ - if( isspace( c ) ) /* One space per whitespace region. */ - { - InFile->bufr[end] = ' '; - i = end + 1; - c = EatWhitespace( InFile ); - } - else /* All others copy verbatim. */ - { - InFile->bufr[i++] = c; - end = i; - c = mygetc( InFile ); - } - } - } - - /* We arrive here if we've met the EOF before the closing bracket. */ - DEBUG(0, ("%s Unexpected EOF in the configuration file\n", func)); - return( false ); - } /* Section */ - -static bool Parameter( myFILE *InFile, bool (*pfunc)(const char *, const char *, void *), int c, void *userdata ) - /* ------------------------------------------------------------------------ ** - * Scan a parameter name and value, and pass these two fields to pfunc(). - * - * Input: InFile - The input source. - * pfunc - A pointer to the function that will be called to - * process the parameter, once it has been scanned. - * c - The first character of the parameter name, which - * would have been read by Parse(). Unlike a comment - * line or a section header, there is no lead-in - * character that can be discarded. - * - * Output: true if the parameter name and value were scanned and processed - * successfully, else false. - * - * Notes: This function is in two parts. The first loop scans the - * parameter name. Internal whitespace is compressed, and an - * equal sign (=) terminates the token. Leading and trailing - * whitespace is discarded. The second loop scans the parameter - * value. When both have been successfully identified, they are - * passed to pfunc() for processing. - * - * ------------------------------------------------------------------------ ** - */ - { - int i = 0; /* Position within bufr. */ - int end = 0; /* bufr[end] is current end-of-string. */ - int vstart = 0; /* Starting position of the parameter value. */ - const char *func = "params.c:Parameter() -"; - - /* Read the parameter name. */ - while( 0 == vstart ) /* Loop until we've found the start of the value. */ - { - - if( i > (InFile->bSize - 2) ) /* Ensure there's space for next char. */ - { - char *tb; - - tb = talloc_realloc(InFile, InFile->bufr, char, InFile->bSize + BUFR_INC ); - if( NULL == tb ) - { - DEBUG(0, ("%s Memory re-allocation failure.", func) ); - return( false ); - } - InFile->bufr = tb; - InFile->bSize += BUFR_INC; - } - - switch( c ) - { - case '=': /* Equal sign marks end of param name. */ - if( 0 == end ) /* Don't allow an empty name. */ - { - DEBUG(0, ("%s Invalid parameter name in config. file.\n", func )); - return( false ); - } - InFile->bufr[end++] = '\0'; /* Mark end of string & advance. */ - i = end; /* New string starts here. */ - vstart = end; /* New string is parameter value. */ - InFile->bufr[i] = '\0'; /* New string is nul, for now. */ - break; - - case '\n': /* Find continuation char, else error. */ - i = Continuation( InFile->bufr, i ); - if( i < 0 ) - { - InFile->bufr[end] = '\0'; - DEBUG(1,("%s Ignoring badly formed line in configuration file: %s\n", - func, InFile->bufr )); - return( true ); - } - end = ( (i > 0) && (' ' == InFile->bufr[i - 1]) ) ? (i - 1) : (i); - c = mygetc( InFile ); /* Read past eoln. */ - break; - - case '\0': /* Shouldn't have EOF within param name. */ - case EOF: - InFile->bufr[i] = '\0'; - DEBUG(1,("%s Unexpected end-of-file at: %s\n", func, InFile->bufr )); - return( false ); - - default: - if( isspace( c ) ) /* One ' ' per whitespace region. */ - { - InFile->bufr[end] = ' '; - i = end + 1; - c = EatWhitespace( InFile ); - } - else /* All others verbatim. */ - { - InFile->bufr[i++] = c; - end = i; - c = mygetc( InFile ); - } - } - } - - /* Now parse the value. */ - c = EatWhitespace( InFile ); /* Again, trim leading whitespace. */ - while( (EOF !=c) && (c > 0) ) - { - - if( i > (InFile->bSize - 2) ) /* Make sure there's enough room. */ - { - char *tb; - - tb = talloc_realloc(InFile, InFile->bufr, char, InFile->bSize + BUFR_INC ); - if( NULL == tb ) - { - DEBUG(0, ("%s Memory re-allocation failure.", func) ); - return( false ); - } - InFile->bufr = tb; - InFile->bSize += BUFR_INC; - } - - switch( c ) - { - case '\r': /* Explicitly remove '\r' because the older */ - c = mygetc( InFile ); /* version called fgets_slash() which also */ - break; /* removes them. */ - - case '\n': /* Marks end of value unless there's a '\'. */ - i = Continuation( InFile->bufr, i ); - if( i < 0 ) - c = 0; - else - { - for( end = i; (end >= 0) && isspace((int)InFile->bufr[end]); end-- ) - ; - c = mygetc( InFile ); - } - break; - - default: /* All others verbatim. Note that spaces do */ - InFile->bufr[i++] = c; /* not advance <end>. This allows trimming */ - if( !isspace( c ) ) /* of whitespace at the end of the line. */ - end = i; - c = mygetc( InFile ); - break; - } - } - InFile->bufr[end] = '\0'; /* End of value. */ - - return( pfunc( InFile->bufr, &InFile->bufr[vstart], userdata ) ); /* Pass name & value to pfunc(). */ - } /* Parameter */ - -static bool Parse( myFILE *InFile, - bool (*sfunc)(const char *, void *), - bool (*pfunc)(const char *, const char *, void *), - void *userdata ) - /* ------------------------------------------------------------------------ ** - * Scan & parse the input. - * - * Input: InFile - Input source. - * sfunc - Function to be called when a section name is scanned. - * See Section(). - * pfunc - Function to be called when a parameter is scanned. - * See Parameter(). - * - * Output: true if the file was successfully scanned, else false. - * - * Notes: The input can be viewed in terms of 'lines'. There are four - * types of lines: - * Blank - May contain whitespace, otherwise empty. - * Comment - First non-whitespace character is a ';' or '#'. - * The remainder of the line is ignored. - * Section - First non-whitespace character is a '['. - * Parameter - The default case. - * - * ------------------------------------------------------------------------ ** - */ - { - int c; - - c = EatWhitespace( InFile ); - while( (EOF != c) && (c > 0) ) - { - switch( c ) - { - case '\n': /* Blank line. */ - c = EatWhitespace( InFile ); - break; - - case ';': /* Comment line. */ - case '#': - c = EatComment( InFile ); - break; - - case '[': /* Section Header. */ - if( !Section( InFile, sfunc, userdata ) ) - return( false ); - c = EatWhitespace( InFile ); - break; - - case '\\': /* Bogus backslash. */ - c = EatWhitespace( InFile ); - break; - - default: /* Parameter line. */ - if( !Parameter( InFile, pfunc, c, userdata ) ) - return( false ); - c = EatWhitespace( InFile ); - break; - } - } - return( true ); - } /* Parse */ - -static myFILE *OpenConfFile(TALLOC_CTX *mem_ctx, const char *FileName ) - /* ------------------------------------------------------------------------ ** - * Open a configuration file. - * - * Input: FileName - The pathname of the config file to be opened. - * - * Output: A pointer of type (char **) to the lines of the file - * - * ------------------------------------------------------------------------ ** - */ - { - const char *func = "params.c:OpenConfFile() -"; - myFILE *ret; - - ret = talloc(mem_ctx, myFILE); - if (!ret) return NULL; - - ret->buf = file_load(FileName, &ret->size, 0, ret); - if( NULL == ret->buf ) - { - DEBUG( 1, - ("%s Unable to open configuration file \"%s\":\n\t%s\n", - func, FileName, strerror(errno)) ); - talloc_free(ret); - return NULL; - } - - ret->p = ret->buf; - ret->bufr = NULL; - ret->bSize = 0; - return( ret ); - } /* OpenConfFile */ - -#if 0 - -bool pm_process( const char *FileName, - bool (*sfunc)(const char *, void *), - bool (*pfunc)(const char *, const char *, void *), - void *userdata) - /* ------------------------------------------------------------------------ ** - * Process the named parameter file. - * - * Input: FileName - The pathname of the parameter file to be opened. - * sfunc - A pointer to a function that will be called when - * a section name is discovered. - * pfunc - A pointer to a function that will be called when - * a parameter name and value are discovered. - * - * Output: TRUE if the file was successfully parsed, else FALSE. - * - * ------------------------------------------------------------------------ ** - */ - { - int result; - myFILE *InFile; - const char *func = "params.c:pm_process() -"; - - InFile = OpenConfFile(NULL, FileName); /* Open the config file. */ - if( NULL == InFile ) - return( false ); - - DEBUG( 3, ("%s Processing configuration file \"%s\"\n", func, FileName) ); - - if( NULL != InFile->bufr ) /* If we already have a buffer */ - result = Parse( InFile, sfunc, pfunc, userdata ); /* (recursive call), then just */ - /* use it. */ - - else /* If we don't have a buffer */ - { /* allocate one, then parse, */ - InFile->bSize = BUFR_INC; /* then free. */ - InFile->bufr = talloc_zero_array(InFile, char, InFile->bSize ); - if( NULL == InFile->bufr ) - { - DEBUG(0,("%s memory allocation failure.\n", func)); - talloc_free(InFile); - return( false ); - } - result = Parse( InFile, sfunc, pfunc, userdata ); - InFile->bufr = NULL; -- Samba Shared Repository