diff options
Diffstat (limited to '1.2-netsec/utils/check_expr.c')
| -rw-r--r-- | 1.2-netsec/utils/check_expr.c | 324 |
1 files changed, 0 insertions, 324 deletions
diff --git a/1.2-netsec/utils/check_expr.c b/1.2-netsec/utils/check_expr.c deleted file mode 100644 index 531af49c0..000000000 --- a/1.2-netsec/utils/check_expr.c +++ /dev/null @@ -1,324 +0,0 @@ -/* - * Asterisk -- An open source telephony toolkit. - * - * Copyright (C) 1999 - 2005, Digium, Inc. - * - * Mark Spencer <markster@digium.com> - * - * See http://www.asterisk.org for more information about - * the Asterisk project. Please do not directly contact - * any of the maintainers of this project for assistance; - * the project provides a web site, mailing lists and IRC - * channels for your use. - * - * This program is free software, distributed under the terms of - * the GNU General Public License Version 2. See the LICENSE file - * at the top of the source tree. - */ - -#include <stdio.h> -#include <stddef.h> -#include <stdarg.h> -#include <string.h> -#include <stdlib.h> -#include <../include/asterisk/ast_expr.h> - -int global_lineno = 1; -int global_expr_count = 0; -int global_expr_max_size = 0; -int global_expr_tot_size = 0; -int global_warn_count = 0; -int global_OK_count = 0; - -struct varz -{ - char varname[100]; /* a really ultra-simple, space-wasting linked list of var=val data */ - char varval[1000]; /* if any varname is bigger than 100 chars, or val greater than 1000, then **CRASH** */ - struct varz *next; -}; - -struct varz *global_varlist; - -/* Our own version of ast_log, since the expr parser uses it. */ - -void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...) __attribute__ ((format (printf,5,6))); - -void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...) -{ - va_list vars; - va_start(vars,fmt); - - printf("LOG: lev:%d file:%s line:%d func: %s ", - level, file, line, function); - vprintf(fmt, vars); - fflush(stdout); - va_end(vars); -} - -char *find_var(const char *varname) /* the list should be pretty short, if there's any list at all */ -{ - struct varz *t; - for (t= global_varlist; t; t = t->next) { - if (!strcmp(t->varname, varname)) { - return t->varval; - } - } - return 0; -} - -void set_var(const char *varname, const char *varval) -{ - struct varz *t = calloc(1,sizeof(struct varz)); - strcpy(t->varname, varname); - strcpy(t->varval, varval); - t->next = global_varlist; - global_varlist = t; -} - -int check_expr(char *buffer, char *error_report) -{ - char *cp; - int oplen = 0; - int warn_found = 0; - - error_report[0] = 0; - - for (cp=buffer;*cp;cp++) { - - if (*cp == '|' - || *cp == '&' - || *cp == '=' - || *cp == '>' - || *cp == '<' - || *cp == '+' - || *cp == '-' - || *cp == '*' - || *cp == '/' - || *cp == '%' - || *cp == '?' - || *cp == ':' - /* || *cp == '(' - || *cp == ')' These are pretty hard to track, as they are in funcalls, etc. */ - || *cp == '"') { - if (*cp == '"') { - /* skip to the other end */ - cp++; - while (*cp && *cp != '"') - cp++; - if (*cp == 0) { - fprintf(stderr,"Trouble? Unterminated double quote found at line %d\n", - global_lineno); - } - } - else { - if ((*cp == '>'||*cp == '<' ||*cp=='!') && (*(cp+1) == '=')) { - oplen = 2; - } - else { - oplen = 1; - } - - if ((cp > buffer && *(cp-1) != ' ') || *(cp+oplen) != ' ') { - char tbuf[1000]; - if (oplen == 1) - sprintf(tbuf,"WARNING: line %d, '%c' operator not separated by spaces. This may lead to confusion. You may wish to use double quotes to quote the grouping it is in. Please check!\n", - global_lineno, *cp); - else - sprintf(tbuf,"WARNING: line %d, '%c%c' operator not separated by spaces. This may lead to confusion. You may wish to use double quotes to quote the grouping it is in. Please check!\n", - global_lineno, *cp, *(cp+1)); - strcat(error_report,tbuf); - - global_warn_count++; - warn_found++; - } - } - } - } - return warn_found; -} - -int check_eval(char *buffer, char *error_report) -{ - char *cp, *ep, *xp; - char s[4096]; - char evalbuf[80000]; - int oplen = 0; - int warn_found = 0; - int result; - - error_report[0] = 0; - ep = evalbuf; - - for (cp=buffer;*cp;cp++) { - if (*cp == '$' && *(cp+1) == '{') { - int brack_lev = 1; - char *xp= cp+2; - - while (*xp) { - if (*xp == '{') - brack_lev++; - else if (*xp == '}') - brack_lev--; - - if (brack_lev == 0) - break; - xp++; - } - if (*xp == '}') { - char varname[200]; - char *val; - - strncpy(varname,cp+2, xp-cp-2); - varname[xp-cp-2] = 0; - cp = xp; - val = find_var(varname); - if (val) { - char *z = val; - while (*z) - *ep++ = *z++; - } - else { - *ep++ = '5'; /* why not */ - *ep++ = '5'; - *ep++ = '5'; - } - } - else { - printf("Unterminated variable reference at line %d\n", global_lineno); - *ep++ = *cp; - } - } - else if (*cp == '\\') { - /* braindead simple elim of backslash */ - cp++; - *ep++ = *cp; - } - else - *ep++ = *cp; - } - *ep++ = 0; - - /* now, run the test */ - result = ast_expr(evalbuf, s, sizeof(s)); - if (result) { - sprintf(error_report,"line %d, evaluation of $[ %s ] result: %s\n", global_lineno, evalbuf, s); - return 1; - } else { - sprintf(error_report,"line %d, evaluation of $[ %s ] result: ****SYNTAX ERROR****\n", global_lineno, evalbuf); - return 1; - } -} - - -void parse_file(const char *fname) -{ - FILE *f = fopen(fname,"r"); - FILE *l = fopen("expr2_log","w"); - int c1; - char last_char= 0; - char buffer[30000]; /* I sure hope no expr gets this big! */ - - if (!f) { - fprintf(stderr,"Couldn't open %s for reading... need an extensions.conf file to parse!\n"); - exit(20); - } - if (!l) { - fprintf(stderr,"Couldn't open 'expr2_log' file for writing... please fix and re-run!\n"); - exit(21); - } - - global_lineno = 1; - - while ((c1 = fgetc(f)) != EOF) { - if (c1 == '\n') - global_lineno++; - else if (c1 == '[') { - if (last_char == '$') { - /* bingo, an expr */ - int bracklev = 1; - int bufcount = 0; - int retval; - char error_report[30000]; - - while ((c1 = fgetc(f)) != EOF) { - if (c1 == '[') - bracklev++; - else if (c1 == ']') - bracklev--; - if (c1 == '\n') { - fprintf(l, "ERROR-- A newline in an expression? Weird! ...at line %d\n", global_lineno); - fclose(f); - fclose(l); - printf("--- ERROR --- A newline in the middle of an expression at line %d!\n", global_lineno); - } - - if (bracklev == 0) - break; - buffer[bufcount++] = c1; - } - if (c1 == EOF) { - fprintf(l, "ERROR-- End of File Reached in the middle of an Expr at line %d\n", global_lineno); - fclose(f); - fclose(l); - printf("--- ERROR --- EOF reached in middle of an expression at line %d!\n", global_lineno); - exit(22); - } - - buffer[bufcount] = 0; - /* update stats */ - global_expr_tot_size += bufcount; - global_expr_count++; - if (bufcount > global_expr_max_size) - global_expr_max_size = bufcount; - - retval = check_expr(buffer, error_report); /* check_expr should bump the warning counter */ - if (retval != 0) { - /* print error report */ - printf("Warning(s) at line %d, expression: $[%s]; see expr2_log file for details\n", - global_lineno, buffer); - fprintf(l, "%s", error_report); - } - else { - printf("OK -- $[%s] at line %d\n", buffer, global_lineno); - global_OK_count++; - } - error_report[0] = 0; - retval = check_eval(buffer, error_report); - fprintf(l, "%s", error_report); - } - } - last_char = c1; - } - printf("Summary:\n Expressions detected: %d\n Expressions OK: %d\n Total # Warnings: %d\n Longest Expr: %d chars\n Ave expr len: %d chars\n", - global_expr_count, - global_OK_count, - global_warn_count, - global_expr_max_size, - (global_expr_count) ? global_expr_tot_size/global_expr_count : 0); - - fclose(f); - fclose(l); -} - - -main(int argc,char **argv) -{ - int argc1; - char *eq; - - if (argc < 2) { - printf("Hey-- give me a path to an extensions.conf file!\n"); - exit(19); - } - global_varlist = 0; - for (argc1=2;argc1 < argc; argc1++) { - if ((eq = strchr(argv[argc1],'='))) { - *eq = 0; - set_var(argv[argc1],eq+1); - } - } - - /* parse command args for x=y and set varz */ - - parse_file(argv[1]); -} |