diff options
Diffstat (limited to 'kbx/keybox-update.c')
| -rw-r--r-- | kbx/keybox-update.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/kbx/keybox-update.c b/kbx/keybox-update.c index eabaa1db2..a16c18e23 100644 --- a/kbx/keybox-update.c +++ b/kbx/keybox-update.c @@ -31,6 +31,38 @@ #define EXTSEP_S "." +#if !defined(HAVE_FSEEKO) && !defined(fseeko) + +#ifdef HAVE_LIMITS_H +# include <limits.h> +#endif +#ifndef LONG_MAX +# define LONG_MAX ((long) ((unsigned long) -1 >> 1)) +#endif +#ifndef LONG_MIN +# define LONG_MIN (-1 - LONG_MAX) +#endif + +/**************** + * A substitute for fseeko, for hosts that don't have it. + */ +static int +fseeko (FILE * stream, off_t newpos, int whence) +{ + while (newpos != (long) newpos) + { + long pos = newpos < 0 ? LONG_MIN : LONG_MAX; + if (fseek (stream, pos, whence) != 0) + return -1; + newpos -= pos; + whence = SEEK_CUR; + } + return fseek (stream, (long) newpos, whence); +} +#endif /* !defined(HAVE_FSEEKO) && !defined(fseeko) */ + + + static int create_tmp_file (const char *template, char **r_bakfname, char **r_tmpfname, FILE **r_fp) |