diff options
Diffstat (limited to 'psi/zfile.c')
| -rw-r--r-- | psi/zfile.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/psi/zfile.c b/psi/zfile.c index fe3f7e9f..e4a2a3e1 100644 --- a/psi/zfile.c +++ b/psi/zfile.c @@ -772,18 +772,25 @@ ztempfile(i_ctx_t *i_ctx_p) if (gp_file_name_is_absolute(pstr, strlen(pstr))) { int plen = strlen(pstr); const char *sep = gp_file_name_separator(); -#ifdef DEBUG int seplen = strlen(sep); - if (seplen != 1) + + /* This should not be possible if gp_file_name_is_absolute is true I think + * But let's avoid the problem. + */ + if (plen < seplen) return_error(gs_error_Fatal); -#endif + + plen -= seplen; /* strip off the file name prefix, leave just the directory name * so we can check if we are allowed to write to it */ for ( ; plen >=0; plen--) { - if (pstr[plen] == sep[0]) + if ( gs_file_name_check_separator(&pstr[plen], seplen, &pstr[plen])) break; } + if (plen < 0) + return_error(gs_error_Fatal); + memcpy(fname, pstr, plen); fname[plen] = '\0'; if (check_file_permissions(i_ctx_p, fname, strlen(fname), |