Synopis:
If option -f is used without -u to invoke date (and sh-utils are compiled
without lint defined) SIGSEGV occurs (freeing unalocated memory)
Solution:
Delete line 217, 218, 220 in date.c
Example:
x - empty file
[root@xxx src]# ./date --version
date (GNU sh-utils) 2.0
Written by David MacKenzie.
Copyright (C) 1999 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[root@xxx src]# ./date -f x
Segmentation fault (core dumped)
Source:
--------------------------------------date.c--------------------------------
-----
...
...
206 static int
207 batch_convert (const char *input_filename, const char *format)
208 {
209 int status;
210 FILE *in_stream;
211 char *line;
212 int line_length;
213 size_t buflen;
214 time_t when;
215 char *initial_TZ;
216
217 #ifdef lint
218 /* Suppress `may be used before initialized' warning. */
219 initial_TZ = NULL;
220 #endif
221
...
288 free (initial_TZ);
Albert Bartoszko
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