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builtin.c: builtin_source now checks that its argument is a file.

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Without this check, it would be possible to attempt to source a directory and get stuck in an infinite loop.

darcs-hash:20051215172122-35ec8-b3ce05d8d7ee9534edf92b74ca842d034b894e8a.gz
This commit is contained in:
James Vega 2005-12-16 03:21:22 +10:00
parent fa75fc3901
commit a91bf6d88a
1 changed files with 14 additions and 0 deletions
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14
builtin.c
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@ -2163,6 +2163,7 @@ static int builtin_source( wchar_t ** argv )
{
int fd;
int res;
struct stat buf;
if( (argv[1] == 0) || (argv[2]!=0) )
{
@ -2173,6 +2174,19 @@ static int builtin_source( wchar_t ** argv )
return 1;
}
if( wstat(argv[1], &buf) == -1 )
{
builtin_wperror( L"stat" );
res = 1;
}
if( !S_ISREG(buf.st_mode) )
{
sb_append2( sb_err, argv[0], L": Expected a regular file\n", (void *)0 );
builtin_print_help( argv[0], sb_err );
return 1;
}
if( ( fd = wopen( argv[1], O_RDONLY ) ) == -1 )
{
builtin_wperror( L"open" );