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openSUSE:Evergreen:11.1
ghostscript-library
ghostscript-8.62-gs_init.dif
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File ghostscript-8.62-gs_init.dif of Package ghostscript-library
--- src/zfile.c +++ src/zfile.c 2010-07-09 10:11:11.079425338 +0200 @@ -897,6 +897,90 @@ check_file_permissions_aux(i_ctx_t *i_ct return 0; } +/* return zero for success, -ve for error, +1 for continue */ +static int +lib_file_open_search_with_no_combine(gs_file_path_ptr lib_path, const gs_memory_t *mem, i_ctx_t *i_ctx_p, + const char *fname, uint flen, char *buffer, int blen, uint *pclen, ref *pfile, + gx_io_device *iodev, bool starting_arg_file, char *fmode) +{ + stream *s; + uint blen1 = blen; + if (gp_file_name_reduce(fname, flen, buffer, &blen1) != gp_combine_success) + goto skip; + if (iodev_os_open_file(iodev, (const char *)buffer, blen1, + (const char *)fmode, &s, (gs_memory_t *)mem) == 0) { + if (starting_arg_file || + check_file_permissions_aux(i_ctx_p, buffer, blen1) >= 0) { + *pclen = blen1; + make_stream_file(pfile, s, "r"); + return 0; + } + sclose(s); + return_error(e_invalidfileaccess); + } + skip:; + return 1; +} + +/* return zero for success, -ve for error, +1 for continue */ +static int +lib_file_open_search_with_combine(gs_file_path_ptr lib_path, const gs_memory_t *mem, i_ctx_t *i_ctx_p, + const char *fname, uint flen, char *buffer, int blen, uint *pclen, ref *pfile, + gx_io_device *iodev, bool starting_arg_file, char *fmode) +{ + stream *s; + const gs_file_path *pfpath = lib_path; + uint pi; + + for (pi = 0; pi < r_size(&pfpath->list); ++pi) { + const ref *prdir = pfpath->list.value.refs + pi; + const char *pstr = (const char *)prdir->value.const_bytes; + uint plen = r_size(prdir), blen1 = blen; + gs_parsed_file_name_t pname; + gp_file_name_combine_result r; + + /* We need to concatenate and parse the file name here + * if this path has a %device% prefix. */ + if (pstr[0] == '%') { + int code; + + /* We concatenate directly since gp_file_name_combine_* + * rules are not correct for other devices such as %rom% */ + code = gs_parse_file_name(&pname, pstr, plen); + if (code < 0) + continue; + memcpy(buffer, pname.fname, pname.len); + memcpy(buffer+pname.len, fname, flen); + code = pname.iodev->procs.open_file(pname.iodev, buffer, pname.len + flen, fmode, + &s, (gs_memory_t *)mem); + if (code < 0) + continue; + make_stream_file(pfile, s, "r"); + /* fill in the buffer with the device concatenated */ + memcpy(buffer, pstr, plen); + memcpy(buffer+plen, fname, flen); + *pclen = plen + flen; + return 0; + } else { + r = gp_file_name_combine(pstr, plen, + fname, flen, false, buffer, &blen1); + if (r != gp_combine_success) + continue; + if (iodev_os_open_file(iodev, (const char *)buffer, blen1, (const char *)fmode, + &s, (gs_memory_t *)mem) == 0) { + if (starting_arg_file || + check_file_permissions_aux(i_ctx_p, buffer, blen1) >= 0) { + *pclen = blen1; + make_stream_file(pfile, s, "r"); + return 0; + } + sclose(s); + return_error(e_invalidfileaccess); + } + } + } + return 1; +} /* Return a file object of of the file searched for using the search paths. */ /* The fname cannot contain a device part (%...%) but the lib paths might. */ @@ -914,6 +998,8 @@ lib_file_open(gs_file_path_ptr lib_path char fmode[4] = { 'r', 0, 0, 0 }; /* room for binary suffix */ stream *s; gx_io_device *iodev = iodev_default; + gs_main_instance *minst = get_minst_from_memory(mem); + int code; /* when starting arg files (@ files) iodev_default is not yet set */ if (iodev == 0) @@ -927,75 +1013,36 @@ lib_file_open(gs_file_path_ptr lib_path search_with_no_combine = starting_arg_file; search_with_combine = true; } - if (search_with_no_combine) { - uint blen1 = blen; - - if (gp_file_name_reduce(fname, flen, buffer, &blen1) != gp_combine_success) - goto skip; - if (iodev_os_open_file(iodev, (const char *)buffer, blen1, - (const char *)fmode, &s, (gs_memory_t *)mem) == 0) { - if (starting_arg_file || - check_file_permissions_aux(i_ctx_p, buffer, blen1) >= 0) { - *pclen = blen1; - make_stream_file(pfile, s, "r"); - return 0; - } - iodev_os_fclose(iodev, s->file); - return_error(e_invalidfileaccess); - } - skip:; - } - if (search_with_combine) { - const gs_file_path *pfpath = lib_path; - uint pi; - - for (pi = 0; pi < r_size(&pfpath->list); ++pi) { - const ref *prdir = pfpath->list.value.refs + pi; - const char *pstr = (const char *)prdir->value.const_bytes; - uint plen = r_size(prdir), blen1 = blen; - gs_parsed_file_name_t pname; - gp_file_name_combine_result r; - - /* We need to concatenate and parse the file name here - * if this path has a %device% prefix. */ - if (pstr[0] == '%') { - int code; - - /* We concatenate directly since gp_file_name_combine_* - * rules are not correct for other devices such as %rom% */ - if (i_ctx_p == NULL) - continue; /* devices not yet initialized */ - gs_parse_file_name(&pname, pstr, plen); - memcpy(buffer, pname.fname, pname.len); - memcpy(buffer+pname.len, fname, flen); - code = pname.iodev->procs.open_file(pname.iodev, buffer, pname.len + flen, fmode, - &s, (gs_memory_t *)mem); - if (code < 0) - continue; - make_stream_file(pfile, s, "r"); - /* fill in the buffer with the device concatenated */ - memcpy(buffer, pstr, plen); - memcpy(buffer+plen, fname, flen); - *pclen = plen + flen; - return 0; - } else { - r = gp_file_name_combine(pstr, plen, - fname, flen, false, buffer, &blen1); - if (r != gp_combine_success) - continue; - if (iodev_os_open_file(iodev, (const char *)buffer, blen1, (const char *)fmode, - &s, (gs_memory_t *)mem) == 0) { - if (starting_arg_file || - check_file_permissions_aux(i_ctx_p, buffer, blen1) >= 0) { - *pclen = blen1; - make_stream_file(pfile, s, "r"); - return 0; - } - iodev_os_fclose(iodev, s->file); - return_error(e_invalidfileaccess); - } - } - } + if (minst->search_here_first) { + if (search_with_no_combine) { + code = lib_file_open_search_with_no_combine(lib_path, mem, i_ctx_p, + fname, flen, buffer, blen, pclen, pfile, + iodev, starting_arg_file, fmode); + if (code <= 0) /* +ve means continue continue */ + return code; + } + if (search_with_combine) { + code = lib_file_open_search_with_combine(lib_path, mem, i_ctx_p, + fname, flen, buffer, blen, pclen, pfile, + iodev, starting_arg_file, fmode); + if (code <= 0) /* +ve means continue searching */ + return code; + } + } else { + if (search_with_combine) { + code = lib_file_open_search_with_combine(lib_path, mem, i_ctx_p, + fname, flen, buffer, blen, pclen, pfile, + iodev, starting_arg_file, fmode); + if (code <= 0) /* +ve means continue searching */ + return code; + } + if (search_with_no_combine) { + code = lib_file_open_search_with_no_combine(lib_path, mem, i_ctx_p, + fname, flen, buffer, blen, pclen, pfile, + iodev, starting_arg_file, fmode); + if (code <= 0) /* +ve means continue searching */ + return code; + } } return_error(e_undefinedfilename); }
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