X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdio%2Fgets.c;h=e59602ea950d550a9c0c42435a5e935e4f468068;hb=9f87d9e27e74d9e06e0c93114ffd70a45ee152fa;hp=4aa45ff0117d2011ca102e79f16e08d5c3dc8900;hpb=cb1e312d4df84b4d73f4255af6b5be0c66407080;p=pdclib

diff --git a/functions/stdio/gets.c b/functions/stdio/gets.c
index 4aa45ff..e59602e 100644
--- a/functions/stdio/gets.c
+++ b/functions/stdio/gets.c
@@ -10,20 +10,62 @@
 
 #ifndef REGTEST
 
+#include <_PDCLIB_glue.h>
+
 char * gets( char * s )
 {
-    return fgets( s, SIZE_MAX, stdin );
+    if ( _PDCLIB_prepread( stdin ) == EOF )
+    {
+        return NULL;
+    }
+    char * dest = s;
+    while ( ( *dest = stdin->buffer[stdin->bufidx++] ) != '\n' )
+    {
+        ++dest;
+        if ( stdin->bufidx == stdin->bufend )
+        {
+            if ( _PDCLIB_fillbuffer( stdin ) == EOF )
+            {
+                break;
+            }
+        }
+    }
+    *dest = '\0';
+    return ( dest == s ) ? NULL : s;
 }
 
 #endif
 
 #ifdef TEST
 #include <_PDCLIB_test.h>
+#include <string.h>
 
 int main( void )
 {
-    TESTCASE( NO_TESTDRIVER );
+    FILE * fh;
+    char buffer[10];
+    char const * gets_test = "foo\nbar\0baz\nweenie";
+    TESTCASE( ( fh = fopen( testfile, "wb" ) ) != NULL );
+    TESTCASE( fwrite( gets_test, 1, 18, fh ) == 18 );
+    TESTCASE( fclose( fh ) == 0 );
+    TESTCASE( ( fh = freopen( testfile, "rb", stdin ) ) != NULL );
+    TESTCASE( gets( buffer ) == buffer );
+    TESTCASE( strcmp( buffer, "foo" ) == 0 );
+    TESTCASE( gets( buffer ) == buffer );
+    TESTCASE( memcmp( buffer, "bar\0baz\0", 8 ) == 0 );
+    TESTCASE( gets( buffer ) == buffer );
+    TESTCASE( strcmp( buffer, "weenie" ) == 0 );
+    TESTCASE( feof( fh ) );
+    TESTCASE( fseek( fh, -1, SEEK_END ) == 0 );
+    TESTCASE( gets( buffer ) == buffer );
+    TESTCASE( strcmp( buffer, "e" ) == 0 );
+    TESTCASE( feof( fh ) );
+    TESTCASE( fseek( fh, 0, SEEK_END ) == 0 );
+    TESTCASE( gets( buffer ) == NULL );
+    TESTCASE( fclose( fh ) == 0 );
+    TESTCASE( remove( testfile ) == 0 );
     return TEST_RESULTS;
 }
 
 #endif
+