nethack-gwaa-kiwi/nethack
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early directory validation

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Allow early prefix directory validation to help prevent
failed games and lost save files due to incorrect config
file settings.
This commit is contained in:
nethack.allison
2002-07-01 22:42:57 +00:00
parent 8d0b3091cb
commit ea268b5b6f
5 changed files with 51 additions and 2 deletions
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38
src/files.c
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@@ -153,6 +153,42 @@ int whichprefix, buffnum;
#endif
}
/* reasonbuf must be at least BUFSZ, supplied by caller */
int
validate_prefix_locations(reasonbuf)
char *reasonbuf;
{
#if defined(NOCWD_ASSUMPTIONS)
FILE *fp;
const char *filename;
int prefcnt, failcount = 0;
char failbuf[BUFSZ];
failbuf[0] = '\0';
if (reasonbuf) reasonbuf[0] = '\0';
for (prefcnt = 1; prefcnt < PREFIX_COUNT; prefcnt++) {
filename = fqname("validate", prefcnt, 3);
if ((fp = fopen(filename, "w"))) {
fclose(fp);
(void) unlink(filename);
} else {
if (failcount) {
Strcat(failbuf,", ");
if (reasonbuf) Strcat(reasonbuf,", ");
}
/* the paniclog entry gets the value of errno */
Sprintf(eos(failbuf), "%s:%d", fqn_prefix_names[prefcnt], errno);
if (reasonbuf) Strcat(reasonbuf, fqn_prefix_names[prefcnt]);
failcount++;
}
}
if (failcount) {
paniclog("Invalid locations", failbuf);
return 0;
}
#endif
return 1;
}
/* fopen a file, with OS-dependent bells and whistles */
/* NOTE: a simpler version of this routine also exists in util/dlb_main.c */
@@ -1289,7 +1325,7 @@ char *tmp_levels;
} else if (match_varname(buf, "LEVELDIR", 4) ||
match_varname(buf, "LEVELS", 4)) {
adjust_prefix(bufp, LEVELPREFIX);
} else if (match_varname(buf, "SAVE", 4)) {
} else if (match_varname(buf, "SAVEDIR", 4)) {
adjust_prefix(bufp, SAVEPREFIX);
} else if (match_varname(buf, "BONESDIR", 5)) {
adjust_prefix(bufp, BONESPREFIX);