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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /security/nss/cmd/modutil/installparse.l | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'security/nss/cmd/modutil/installparse.l')
-rw-r--r-- | security/nss/cmd/modutil/installparse.l | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/security/nss/cmd/modutil/installparse.l b/security/nss/cmd/modutil/installparse.l new file mode 100644 index 0000000000..71fb56101d --- /dev/null +++ b/security/nss/cmd/modutil/installparse.l @@ -0,0 +1,137 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + + +/* lex file for analyzing PKCS #11 Module installation instructions */ + +/*----------------------------- Definitions ---------------------------*/ +%{ +#include <string.h> + +#include "install-ds.h" /* defines tokens and data structures */ +#include "installparse.h" /* produced by yacc -d */ +#include <prprf.h> +static char *putSimpleString(char*); /* return copy of string */ +static char *putComplexString(char*); /* strip out quotes, deal with */ + /* escaped characters */ + +void Pk11Install_yyerror(char *); + +/* Overrides to use NSPR */ +#define malloc PR_Malloc +#define realloc PR_Realloc +#define free PR_Free + +int Pk11Install_yylinenum=1; +static char *err; + +#define YY_NEVER_INTERACTIVE 1 +#define yyunput Pkcs11Install_yyunput + +/* This is the default YY_INPUT modified for NSPR */ +#define YY_INPUT(buf,result,max_size) \ + if ( yy_current_buffer->yy_is_interactive ) { \ + char c; \ + int n; \ + for ( n = 0; n < max_size && \ + PR_Read(Pk11Install_FD, &c, 1)==1 && c != '\n'; ++n ) { \ + buf[n] = c; \ + } \ + if ( c == '\n' ) { \ + buf[n++] = c; \ + } \ + result = n; \ + } else { \ + result = PR_Read(Pk11Install_FD, buf, max_size); \ + } + +%} + +/*** Regular expression definitions ***/ +/* simple_string has no whitespace, quotes, or braces */ +simple_string [^ \t\r\n\""{""}"]+ + +/* complex_string is enclosed in quotes. Inside the quotes, quotes and + backslashes must be backslash-escaped. No newlines or carriage returns + are allowed inside the quotes. Otherwise, anything goes. */ +complex_string \"([^\"\\\r\n]|(\\\")|(\\\\))+\" + +/* Standard whitespace */ +whitespace [ \t\r]+ + +other . + +/*---------------------------- Actions --------------------------------*/ +%% + +"{" return OPENBRACE; +"}" return CLOSEBRACE; +{simple_string} {Pk11Install_yylval.string = + putSimpleString(Pk11Install_yytext); + return STRING;} +{complex_string} {Pk11Install_yylval.string = + putComplexString(Pk11Install_yytext); + return STRING;} + +"\n" Pk11Install_yylinenum++; + +{whitespace} ; + +{other} {err = PR_smprintf("Invalid lexeme: %s",Pk11Install_yytext); + Pk11Install_yyerror(err); + PR_smprintf_free(err); + return 1; + } + +%% +/*------------------------ Program Section ----------------------------*/ + +PRFileDesc *Pk11Install_FD=NULL; + +/*************************************************************************/ +/* dummy function required by lex */ +int Pk11Install_yywrap(void) { return 1;} + +/*************************************************************************/ +/* Return a copy of the given string */ +static char* +putSimpleString(char *str) +{ + char *tmp = (char*) PR_Malloc(strlen(str)+1); + strcpy(tmp, str); + return tmp; +} + +/*************************************************************************/ +/* Strip out quotes, replace escaped characters with what they stand for. + This function assumes that what is passed in is actually a complex + string, so error checking is lax. */ +static char* +putComplexString(char *str) +{ + int size, i,j; + char *tmp; + + if(!str) { + return NULL; + } + size = strlen(str); + + /* Allocate the new space. This string will actually be too big, + since quotes and backslashes will be stripped out. But that's ok. */ + tmp = (char*) PR_Malloc(size+1); + + /* Copy it over */ + for(i=0, j=0; i < size; i++) { + if(str[i]=='\"') { + continue; /* skip un-escaped quotes */ + } else if(str[i]=='\\') { + ++i; /* escaped character. skip the backslash */ + } + tmp[j++] = str[i]; + } + tmp[j] = '\0'; + + return tmp; +} |