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vim/runtime/tools/ccfilter.c
Keith Thompson 184f71cc68
patch 9.1.0006: is*() and to*() function may be unsafe 
Problem:  is*() and to*() function may be unsafe
Solution: Add SAFE_* macros and start using those instead
          (Keith Thompson)

Use SAFE_() macros for is*() and to*() functions

The standard is*() and to*() functions declared in <ctype.h> have
undefined behavior for negative arguments other than EOF.  If plain char
is signed, passing an unchecked value from argv for from user input
to one of these functions has undefined behavior.

Solution: Add SAFE_*() macros that cast the argument to unsigned char.

Most implementations behave sanely for negative arguments, and most
character values in practice are non-negative, but it's still best
to avoid undefined behavior.

The change from #13347 has been omitted, as this has already been
separately fixed in commit ac709e2fc0
(v9.0.2054)

fixes: #13332
closes: #13347

Signed-off-by: Keith Thompson <Keith.S.Thompson@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2024-01-04 21:19:04 +01:00

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/* ======================================================================= */
/* Project : VIM */
/* Module : ccfilter Version: 02.01.01 */
/* File : ccfilter.c */
/* Purpose : Filter gmake/cc output into a standardized form */
/* ======================================================================= */
/* Created On: 12-Sep-95 20:32 */
/* Last modification: 03-Feb-98 */
/* -e option added by Bernd Feige */
/* ======================================================================= */
/* Copyright : */
/* This source file is copyright (c) to Pablo Ariel Kohan */
/* ======================================================================= */
#define __CCFILTER_C__
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#define LINELENGTH 2048
/* Collector(s) */
char Line[LINELENGTH];
char Line2[LINELENGTH];
/* Components */
char FileName[1024];
char BasePath[1024];
char CWD[1024];
unsigned long Row;
unsigned long Col;
char Severity;
char Reason[LINELENGTH];
#define COMPILER_UNKNOWN 0
#define COMPILER_GCC 1
#define COMPILER_AIX 2
#define COMPILER_ATT 3
#define COMPILER_IRIX 4
#define COMPILER_SOLARIS 5
#define COMPILER_HPUX 6
char *COMPILER_Names[][2] =
{
/* Name Description */
{ "N/A", "" },
{ "GCC", "GCC compiler" },
{ "AIX", "AIX's C compiler" },
{ "ATT", "AT&T/NCR's High Performance C Compiler" },
{ "IRIX", "IRIX's MIPS/MIPSpro C compiler" },
{ "SOLARIS", "SOLARIS's SparcWorks C compiler" },
{ "HPUX", "HPUX's C compiler" }
};
#define COMPILER_QTY (sizeof(COMPILER_Names)/sizeof(COMPILER_Names[0]))
#if defined(_GCC)
# define COMPILER_DEFAULT COMPILER_GCC
#elif defined(_AIX)
# define COMPILER_DEFAULT COMPILER_AIX
#elif defined(_ATT)
# define COMPILER_DEFAULT COMPILER_ATT
#elif defined(_IRIX)
# define COMPILER_DEFAULT COMPILER_IRIX
#elif defined(_SOLARIS)
# define COMPILER_DEFAULT COMPILER_SOLARIS
#elif defined(_HPUX)
# define COMPILER_DEFAULT COMPILER_HPUX
#else
# define COMPILER_DEFAULT COMPILER_UNKNOWN
#endif
const char USAGE[] =
"ccfilter v2.1 (c)1994-1997 by Pablo Ariel Kohan\n"
"Filter Out compiler's output, and converts it to fit VIM\n\n"
"Usage:\n"
" ccfilter [<options>]\n"
"Where: <options> is one or more of:\n"
" -c Decrement column by one\n"
" -r Decrement row by one\n"
" -e Echo stdin to stderr\n"
" -v Verbose (Outputs also invalid lines)\n"
" -o <COMPILER> Treat input as <COMPILER>'s output\n"
" Note: COMPILER may be preceded by an _\n"
" -h This usage.\n";
int ShowUsage( char *szError )
{
int i;
fprintf( stderr, USAGE );
fprintf( stderr, "Current default <COMPILER>: %s\n",
COMPILER_Names[COMPILER_DEFAULT][0] );
fprintf( stderr, "Acceptable parameters for <COMPILER> are:\n" );
for (i=1; i < COMPILER_QTY; i++)
fprintf( stderr, " %-15.15s %s\n",
COMPILER_Names[i][0],
COMPILER_Names[i][1] );
fprintf(stderr, szError);
return 0;
}
char *echogets(char *s, int echo)
{
char * const retval=fgets(s, LINELENGTH, stdin);
if (echo!=0 && retval!=NULL) {
fputs(retval, stderr);
}
return retval;
}
int main( int argc, char *argv[] )
{ int rv, i, j, ok;
int stay;
int prefetch;
char *p;
int dec_col = 0; /* Decrement column value by 1 */
int dec_row = 0; /* Decrement row value by 1 */
int echo = 0; /* Echo stdin to stderr */
int verbose = 0; /* Include Bad Formatted Lines */
int CWDlen;
int COMPILER = COMPILER_DEFAULT;
getcwd( CWD, sizeof(CWD) );
CWDlen = strlen(CWD);
for (i=1; i<argc; i++)
{
if (argv[i][0] != '-')
return ShowUsage("");
switch ( argv[i][1] )
{
case 'c':
dec_col = 1;
break;
case 'r':
dec_row = 1;
break;
case 'e':
echo = 1;
break;
case 'v':
verbose = 1;
break;
case 'o':
{
if (i+1 >= argc)
return ShowUsage("Error: Missing parameter for -o\n");
i++;
COMPILER = -1;
for (j=1; j<COMPILER_QTY; j++)
if ( (strcmp(argv[i], COMPILER_Names[j][0]) == 0) ||
( (argv[i][0] == '_') &&
(strcmp(&argv[i][1], COMPILER_Names[j][0]) == 0) ) )
COMPILER = j;
if (COMPILER == -1)
return ShowUsage("Error: Invalid COMPILER specified\n");
}
break;
case 'h':
return ShowUsage("");
default:
return ShowUsage("Error: Invalid option\n");
}
}
if (COMPILER == 0)
return ShowUsage("Error: COMPILER must be specified in this system\n");
stay = ( echogets(Line, echo) != NULL );
prefetch = 0;
while( stay )
{
*FileName = 0;
Row = 0;
Col = 0;
Severity = ' ';
*Reason = 0;
ok = 0;
switch (COMPILER)
{
case COMPILER_GCC:
Severity = 'e';
#ifdef GOTO_FROM_WHERE_INCLUDED
rv = sscanf( Line, "In file included from %[^:]:%lu:",
FileName, &Row );
if ( rv == 2 )
{
ok = (echogets(Reason, echo) != NULL);
}
else
#endif
{
if ((rv = sscanf( Line, "%[^:]:%lu: warning: %[^\n]",
FileName, &Row, Reason ))==3) {
Severity = 'w';
} else {
rv = sscanf( Line, "%[^:]:%lu: %[^\n]",
FileName, &Row, Reason );
}
ok = ( rv == 3 );
}
Col = (dec_col ? 1 : 0 );
break;
case COMPILER_AIX:
rv = sscanf( Line, "\"%[^\"]\", line %lu.%lu: %*s (%c) %[^\n]",
FileName, &Row, &Col, &Severity, Reason );
ok = ( rv == 5 );
break;
case COMPILER_HPUX:
rv = sscanf( Line, "cc: \"%[^\"]\", line %lu: %c%*[^:]: %[^\n]",
FileName, &Row, &Severity, Reason );
ok = ( rv == 4 );
Col = (dec_col ? 1 : 0 );
break;
case COMPILER_SOLARIS:
rv = sscanf( Line, "\"%[^\"]\", line %lu: warning: %[^\n]",
FileName, &Row, Reason );
Severity = 'w';
ok = ( rv == 3 );
if ( rv != 3 )
{
rv = sscanf( Line, "\"%[^\"]\", line %lu: %[^\n]",
FileName, &Row, Reason );
Severity = 'e';
ok = ( rv == 3 );
}
Col = (dec_col ? 1 : 0 );
break;
case COMPILER_ATT:
rv = sscanf( Line, "%c \"%[^\"]\",L%lu/C%lu%*[^:]:%[^\n]",
&Severity, FileName, &Row, &Col, Reason );
ok = ( rv == 5 );
if (rv != 5)
{ rv = sscanf( Line, "%c \"%[^\"]\",L%lu/C%lu: %[^\n]",
&Severity, FileName, &Row, &Col, Reason );
ok = ( rv == 5 );
}
if (rv != 5)
{ rv = sscanf( Line, "%c \"%[^\"]\",L%lu: %[^\n]",
&Severity, FileName, &Row, Reason );
ok = ( rv == 4 );
Col = (dec_col ? 1 : 0 );
}
stay = (echogets(Line2, echo) != NULL);
while ( stay && (Line2[0] == '|') )
{ for (p=&Line2[2]; (*p) && (isspace((unsigned char)*p)); p++);
strcat( Reason, ": " );
strcat( Reason, p );
Line2[0] = 0;
stay = (echogets(Line2, echo) != NULL);
}
prefetch = 1;
strcpy( Line, Line2 );
break;
case COMPILER_IRIX:
Col = 1;
prefetch = 0;
rv = 0;
ok = 0;
if ( !strncmp(Line, "cfe: ", 5) )
{ p = &Line[5];
Severity = tolower((unsigned char)*p);
p = strchr( &Line[5], ':' );
if (p == NULL)
{ ok = 0;
}
else
{
rv = sscanf( p+2, "%[^:]: %lu: %[^\n]",
FileName, &Row, Reason );
if (rv != 3)
rv = sscanf( p+2, "%[^,], line %lu: %[^\n]",
FileName, &Row, Reason );
ok = ( rv == 3 );
}
if (ok)
{ prefetch = 1;
stay = (echogets(Line, echo) != NULL);
if (Line[0] == ' ')
stay = (echogets(Line2, echo) != NULL);
if ( (Line2[0] == ' ') &&
( (Line2[1] == '-') || (Line2[1] == '^') ) )
{ Col = strlen(Line2)-1;
prefetch = 0;
}
else
{ strcat( Line, "\n" );
strcat( Line, Line2 );
}
}
}
break;
}
if (dec_col) Col--;
if (dec_row) Row--;
if (!ok)
{
if ( Line[0] == 'g' )
p = &Line[1];
else
p = &Line[0];
ok = sscanf( p, "make[%*d]: Entering directory `%[^']",
BasePath );
if (verbose)
printf( "[%u]?%s\n", (unsigned)ok, Line );
}
else
{
for (p=Reason; (*p) && (isspace((unsigned char)*p)); p++);
if ( BasePath[CWDlen] == 0 )
printf( "%s:%lu:%lu:%c:%s\n", FileName, Row, Col, Severity, p );
else
{
printf( "%s/%s:%lu:%lu:%c:%s\n", &BasePath[CWDlen+1], FileName, Row, Col, Severity, p );
}
}
if (!prefetch)
stay = ( echogets(Line, echo) != NULL );
}
return 0;
}
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