| /* |
| * Copyright (c) 2018 The Linux Foundation. All rights reserved. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #include "qdf_file.h" |
| #include "qdf_module.h" |
| #include "qdf_parse.h" |
| #include "qdf_status.h" |
| #include "qdf_str.h" |
| #include "qdf_trace.h" |
| #include "qdf_types.h" |
| |
| QDF_STATUS qdf_ini_parse(const char *ini_path, void *context, |
| qdf_ini_item_cb item_cb, qdf_ini_section_cb section_cb) |
| { |
| QDF_STATUS status; |
| char *fbuf; |
| char *cursor; |
| |
| status = qdf_file_read(ini_path, &fbuf); |
| if (QDF_IS_STATUS_ERROR(status)) { |
| qdf_err("Failed to read *.ini file @ %s", ini_path); |
| return status; |
| } |
| |
| /* foreach line */ |
| cursor = fbuf; |
| while (*cursor != '\0') { |
| char *key = cursor; |
| char *value = NULL; |
| bool comment = false; |
| bool eol = false; |
| |
| /* |
| * Look for the end of the line, while noting any |
| * value ('=') or comment ('#') indicators |
| */ |
| while (!eol) { |
| switch (*cursor) { |
| case '\r': |
| case '\n': |
| *cursor = '\0'; |
| cursor++; |
| /* fall through */ |
| case '\0': |
| eol = true; |
| break; |
| |
| case '=': |
| /* |
| * The first '=' is the value indicator. |
| * Subsequent '=' are valid value characters. |
| */ |
| if (!value && !comment) { |
| value = cursor + 1; |
| *cursor = '\0'; |
| } |
| |
| cursor++; |
| break; |
| |
| case '#': |
| /* |
| * We don't process comments, so we can null- |
| * terminate unconditionally here (unlike '='). |
| */ |
| comment = true; |
| *cursor = '\0'; |
| /* fall through */ |
| default: |
| cursor++; |
| break; |
| } |
| } |
| |
| key = qdf_str_trim(key); |
| |
| /* |
| * Ignoring comments, a valid ini line contains one of: |
| * 1) some 'key=value' config item |
| * 2) section header |
| * 3) a line containing whitespace |
| */ |
| if (value) { |
| status = item_cb(context, key, value); |
| if (QDF_IS_STATUS_ERROR(status)) |
| goto free_fbuf; |
| } else if (key[0] == '[') { |
| qdf_size_t len = qdf_str_len(key); |
| |
| if (key[len - 1] != ']') { |
| qdf_err("Invalid *.ini syntax '%s'", key); |
| } else { |
| key[len - 1] = '\0'; |
| status = section_cb(context, key + 1); |
| if (QDF_IS_STATUS_ERROR(status)) |
| goto free_fbuf; |
| } |
| } else if (key[0] != '\0') { |
| qdf_err("Invalid *.ini syntax '%s'", key); |
| } |
| |
| /* skip remaining EoL characters */ |
| while (*cursor == '\n' || *cursor == '\r') |
| cursor++; |
| } |
| |
| status = QDF_STATUS_SUCCESS; |
| |
| free_fbuf: |
| qdf_file_buf_free(fbuf); |
| |
| return status; |
| } |
| qdf_export_symbol(qdf_ini_parse); |
| |