diff options
Diffstat (limited to 'source3/utils')
| -rw-r--r-- | source3/utils/make_smbcodepage.c | 472 |
1 files changed, 472 insertions, 0 deletions
diff --git a/source3/utils/make_smbcodepage.c b/source3/utils/make_smbcodepage.c new file mode 100644 index 0000000000..c8b4fea8bc --- /dev/null +++ b/source3/utils/make_smbcodepage.c @@ -0,0 +1,472 @@ +/* + Unix SMB/Netbios implementation. + Version 1.9. + Create codepage files from codepage_def.XXX files. + + Copyright (C) Jeremy Allison 1997 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" + +static char *prog_name = NULL; + +/* + * Print program usage and die. + */ + +void codepage_usage(const char *progname) +{ + fprintf(stderr, "Usage is : %s [c|d] <codepage> <inputfile> <outputfile>\n", + progname); + exit(1); +} + +/* + * Read a line from a buffer into a line buffer. Ensure null + * terminated. + */ + +void read_line( char **buf, char *line_buf, int size) +{ + char *p = *buf; + int num = 0; + + for(; *p && (*p != '\n'); p++) + { + if(num < (size - 1)) + line_buf[num++] = *p; + } + if(*p) + p++; /* Go past the '\n' */ + line_buf[num] = '\0'; + *buf = p; +} + +/* + * Strip comment lines and blank lines from the data. + * Copies into a new buffer and frees the old. + * Returns the number of lines copied. + */ + +int clean_data( char **buf, uint32 *size) +{ + char linebuf[512]; + char *p = *buf; + int num_lines = 0; + char *newbuf = (char *)malloc( *size + 1); + char *newbuf_p = NULL; + + if(newbuf == NULL) + { + fprintf(stderr, "%s: malloc fail for size %d.\n", prog_name, *size + 1); + exit(1); + } + + newbuf_p = newbuf; + *newbuf_p = '\0'; + + while( *p ) + { + char *cp; + + read_line( &p, linebuf, sizeof(linebuf)); + /* Null terminate after comment. */ + if((cp = strchr( linebuf, '#'))!= NULL) + *cp = '\0'; + + for(cp = linebuf;*cp && isspace(*cp); cp++) + ; + + if(*cp == '\0') + continue; + + strcpy(newbuf_p, cp); + num_lines++; + newbuf_p += (strlen(newbuf_p) + 1); + } + + free(*buf); + *buf = newbuf; + return num_lines; +} + +/* + * Parse a byte from a codepage file. + */ + +BOOL parse_byte(char *buf, unsigned char *bp) +{ + unsigned int b; + char *endptr = NULL; + + b = (unsigned int)strtol(buf, &endptr, 0); + if(endptr == buf || b > 255) + return False; + + *bp = (unsigned char)b; + return True; +} + +/* + * Parse a bool from a codepage file. + */ + +BOOL parse_bool(char *buf, unsigned char *bp) +{ + if(isdigit(*buf)) + { + char *endptr = NULL; + + *bp = (unsigned char)strtol(buf, &endptr, 0); + if(endptr == buf ) + return False; + if(*bp != 0) + *bp = 1; + } else { + if(strcasecmp(buf, "True") && strcasecmp(buf, "False")) + return False; + if(strcasecmp(buf, "True")==0) + *bp = 1; + else + *bp = 0; + } + return True; +} + +/* + * Print a parse error and exit. + */ + +void parse_error(char *buf, char *msg) +{ + fprintf(stderr, "%s: %s whilst parsing line \n%s\n", prog_name, + msg, buf); + exit(1); +} + +/* + * Create a compiled codepage file from a codepage definition file. + */ + +int do_compile(int codepage, const char *input_file, const char *output_file) +{ + FILE *fp = NULL; + uint32 size = 0; + char *buf = NULL; + char output_buf[CODEPAGE_HEADER_SIZE + 512]; + int num_lines = 0; + int i = 0; + struct stat st; + + /* Get the size of the input file. Read the entire thing into memory. */ + if(stat((char *)input_file, &st)!= 0) + { + fprintf(stderr, "%s: failed to get the file size for file %s. Error was %s\n", + prog_name, input_file, strerror(errno)); + exit(1); + } + + size = (uint32)st.st_size; + + /* I don't believe these things should be bigger than 100k :-) */ + if(size > 100*1024) + { + fprintf(stderr, "%s: filesize %d is too large for a codepage definition file. \ +The maximum size I will believe is 100k.\n", prog_name, size); + exit(1); + } + + if((fp = fopen(input_file, "r")) == NULL) + { + fprintf(stderr, "%s: cannot open file %s for input.\n", prog_name, input_file); + exit(1); + } + + /* As we will be reading text, allocate one more byte for a '\0' */ + if((buf = (char *)malloc( size + 1 )) == NULL) + { + fprintf(stderr, "%s: malloc fail for size %d.\n", prog_name, size + 1); + fclose(fp); + exit(1); + } + + if(fread( buf, 1, size, fp) != size) + { + fprintf(stderr, "%s: read failed for file %s. Error was %s.\n", prog_name, + input_file, strerror(errno)); + free((char *)buf); + fclose(fp); + exit(1); + } + + /* Null terminate the text read. */ + buf[size] = '\0'; + + /* Go through the data line by line, strip out comments (anything + after a '#' to end-of-line) and blank lines. The rest should be + the codepage data. + */ + + num_lines = clean_data( &buf, &size); + + /* There can be a maximum of 128 lines. */ + if(num_lines > 128) + { + fprintf(stderr, "%s: There can be a maximum 128 lines of data in a codepage \ +definition file. File %s has %d.\n", prog_name, input_file, num_lines); + exit(1); + } + + /* Setup the output file header. */ + SSVAL(output_buf,CODEPAGE_VERSION_OFFSET,CODEPAGE_FILE_VERSION_ID); + SSVAL(output_buf,CODEPAGE_CLIENT_CODEPAGE_OFFSET,(uint16)codepage); + SIVAL(output_buf,CODEPAGE_LENGTH_OFFSET,(num_lines * 4)); + + /* Now convert the lines into the compiled form. */ + for(i = 0; i < num_lines; i++) + { + char token_buf[512]; + char *p = buf; + unsigned char b = 0; + + /* Get the 'lower' value. */ + if(!next_token(&p, token_buf, NULL)) + parse_error(buf, "cannot parse first value"); + if(!parse_byte( token_buf, &b)) + parse_error(buf, "first value doesn't resolve to a byte"); + + /* Add this to the output buffer. */ + SCVAL(output_buf,CODEPAGE_HEADER_SIZE+(i*4),b); + + /* Get the 'upper' value. */ + if(!next_token(&p, token_buf, NULL)) + parse_error(buf, "cannot parse second value"); + if(!parse_byte( token_buf, &b)) + parse_error(buf, "second value doesn't resolve to a byte"); + + /* Add this to the output buffer. */ + SCVAL(output_buf,CODEPAGE_HEADER_SIZE+(i*4) + 1,b); + + /* Get the 'upper to lower' value. */ + if(!next_token(&p, token_buf, NULL)) + parse_error(buf, "cannot parse third value"); + if(!parse_bool( token_buf, &b)) + parse_error(buf, "third value doesn't resolve to a boolean"); + + /* Add this to the output buffer. */ + SCVAL(output_buf,CODEPAGE_HEADER_SIZE+(i*4) + 2,b); + + /* Get the 'lower to upper' value. */ + if(!next_token(&p, token_buf, NULL)) + parse_error(buf, "cannot parse fourth value"); + if(!parse_bool( token_buf, &b)) + parse_error(buf, "fourth value doesn't resolve to a boolean"); + + /* Add this to the output buffer. */ + SCVAL(output_buf,CODEPAGE_HEADER_SIZE+(i*4) + 3,b); + + buf += (strlen(buf) + 1); + } + + /* Now write out the output_buf. */ + if((fp = fopen(output_file, "w"))==NULL) + { + fprintf(stderr, "%s: Cannot open output file %s. Error was %s.\n", + prog_name, output_file, strerror(errno)); + exit(1); + } + + if(fwrite(output_buf, 1, CODEPAGE_HEADER_SIZE + (num_lines*4), fp) != + CODEPAGE_HEADER_SIZE + (num_lines*4)) + { + fprintf(stderr, "%s: Cannot write output file %s. Error was %s.\n", + prog_name, output_file, strerror(errno)); + exit(1); + } + + fclose(fp); + + return 0; +} + +/* + * Placeholder for now. + */ + +int do_decompile( int codepage, const char *input_file, const char *output_file) +{ + uint32 size = 0; + struct stat st; + char header_buf[CODEPAGE_HEADER_SIZE]; + char *buf = NULL; + FILE *fp = NULL; + int num_lines = 0; + int i = 0; + + /* Get the size of the input file. Read the entire thing into memory. */ + if(stat((char *)input_file, &st)!= 0) + { + fprintf(stderr, "%s: failed to get the file size for file %s. Error was %s\n", + prog_name, input_file, strerror(errno)); + exit(1); + } + + size = (uint32)st.st_size; + + if( size < CODEPAGE_HEADER_SIZE || size > (CODEPAGE_HEADER_SIZE + 256)) + { + fprintf(stderr, "%s: file %s is an incorrect size for a \ +code page file.\n", prog_name, input_file); + exit(1); + } + + /* Read the first 8 bytes of the codepage file - check + the version number and code page number. All the data + is held in little endian format. + */ + + if((fp = fopen( input_file, "r")) == NULL) + { + fprintf(stderr, "%s: cannot open file %s. Error was %s\n", + prog_name, input_file, strerror(errno)); + exit(1); + } + + if(fread( header_buf, 1, CODEPAGE_HEADER_SIZE, fp)!=CODEPAGE_HEADER_SIZE) + { + fprintf(stderr, "%s: cannot read header from file %s. Error was %s\n", + prog_name, input_file, strerror(errno)); + exit(1); + } + + /* Check the version value */ + if(SVAL(header_buf,CODEPAGE_VERSION_OFFSET) != CODEPAGE_FILE_VERSION_ID) + { + fprintf(stderr, "%s: filename %s has incorrect version id. \ +Needed %hu, got %hu.\n", + prog_name, input_file, (uint16)CODEPAGE_FILE_VERSION_ID, + SVAL(header_buf,CODEPAGE_VERSION_OFFSET)); + exit(1); + } + + /* Check the codepage matches */ + if(SVAL(header_buf,CODEPAGE_CLIENT_CODEPAGE_OFFSET) != (uint16)codepage) + { + fprintf(stderr, "%s: filename %s has incorrect codepage. \ +Needed %hu, got %hu.\n", + prog_name, input_file, (uint16)codepage, + SVAL(header_buf,CODEPAGE_CLIENT_CODEPAGE_OFFSET)); + exit(1); + } + + /* Check the length is correct. */ + if(IVAL(header_buf,CODEPAGE_LENGTH_OFFSET) != + (unsigned int)(size - CODEPAGE_HEADER_SIZE)) + { + fprintf(stderr, "%s: filename %s has incorrect size headers. \ +Needed %u, got %u.\n", prog_name, input_file, size - CODEPAGE_HEADER_SIZE, + IVAL(header_buf,CODEPAGE_LENGTH_OFFSET)); + exit(1); + } + + size -= CODEPAGE_HEADER_SIZE; /* Remove header */ + + /* Make sure the size is a multiple of 4. */ + if((size % 4 ) != 0) + { + fprintf(stderr, "%s: filename %s has a codepage size not a \ +multiple of 4.\n", prog_name, input_file); + exit(1); + } + + /* Allocate space for the code page file and read it all in. */ + if((buf = (char *)malloc( size )) == NULL) + { + fprintf (stderr, "%s: malloc fail for size %d.\n", + prog_name, size ); + exit(1); + } + + if(fread( buf, 1, size, fp)!=size) + { + fprintf(stderr, "%s: read fail on file %s. Error was %s.\n", + prog_name, input_file, strerror(errno)); + exit(1); + } + + fclose(fp); + + /* Now dump the codepage into an ascii file. */ + if((fp = fopen(output_file, "w")) == NULL) + { + fprintf(stderr, "%s: cannot open file %s. Error was %s\n", + prog_name, output_file, strerror(errno)); + exit(1); + } + + fprintf(fp, "#\n# Codepage definition file for IBM Code Page %d.\n#\n", + codepage); + fprintf(fp, "# This file was automatically generated.\n#\n"); + fprintf(fp, "# defines lower->upper mapping.\n"); + fprintf(fp, "#\n#The columns are :\n# lower\tupper\tu-t-l\tl-t-u\n#\n"); + + num_lines = size / 4; + for( i = 0; i < num_lines; i++) + { + fprintf(fp, "0x%02X\t0x%02X\t%s\t%s\n", CVAL(buf, (i*4)), CVAL(buf, (i*4)+1), + CVAL(buf, (i*4)+2) ? "True" : "False", + CVAL(buf, (i*4)+3) ? "True" : "False"); + } + fclose(fp); + return 0; +} + +int main(int argc, char **argv) +{ + int codepage = 0; + char *input_file = NULL; + char *output_file = NULL; + BOOL compile = False; + + prog_name = argv[0]; + + if(argc != 5) + codepage_usage(prog_name); + + if(argv[1][0] != 'c' && argv[1][0] != 'C' && argv[1][0] != 'd' && + argv[1][0] != 'D') + codepage_usage(prog_name); + + input_file = argv[3]; + output_file = argv[4]; + + /* Are we compiling or decompiling. */ + if(argv[1][0] == 'c' || argv[1][0] == 'C') + compile = True; + + /* Convert the second argument into a client codepage value. */ + if((codepage = atoi(argv[2])) == 0) + { + fprintf(stderr, "%s: %s is not a valid codepage.\n", prog_name, argv[2]); + exit(1); + } + + if(compile) + return do_compile( codepage, input_file, output_file); + else + return do_decompile( codepage, input_file, output_file); +} |