* process_input_file * * Read the contents of file 'f' and return a pointer to a list of pending * write operations. Perform sanity checking on all write operations and * exit with an error message if there is a problem. ****************************************************************************/
| 47 | * exit with an error message if there is a problem. |
| 48 | ****************************************************************************/ |
| 49 | cmos_write_t *process_input_file(FILE * f) |
| 50 | { |
| 51 | static const int LINE_BUF_SIZE = 256; |
| 52 | static const size_t N_MATCHES = 4; |
| 53 | char line[LINE_BUF_SIZE]; |
| 54 | const char *name, *value; |
| 55 | cmos_write_t *list, *item, **p; |
| 56 | regex_t blank_or_comment, assignment; |
| 57 | regmatch_t match[N_MATCHES]; |
| 58 | const cmos_entry_t *e; |
| 59 | |
| 60 | list = NULL; |
| 61 | p = &list; |
| 62 | |
| 63 | compile_reg_expr(REG_EXTENDED | REG_NEWLINE, blank_or_comment_regex, &blank_or_comment); |
| 64 | compile_reg_expr(REG_EXTENDED | REG_NEWLINE, assignment_regex, &assignment); |
| 65 | |
| 66 | /* each iteration processes one line from input file */ |
| 67 | for (line_num = 1; get_input_file_line(f, line, LINE_BUF_SIZE) == OK; line_num++) { /* skip comments and blank lines */ |
| 68 | if (!regexec(&blank_or_comment, line, 0, NULL, 0)) |
| 69 | continue; |
| 70 | |
| 71 | /* Is this a valid assignment line? If not, then it's a syntax |
| 72 | * error. |
| 73 | */ |
| 74 | if (regexec(&assignment, line, N_MATCHES, match, 0)) { |
| 75 | fprintf(stderr, |
| 76 | "%s: Syntax error on line %d of input file.\n", |
| 77 | prog_name, line_num); |
| 78 | exit(1); |
| 79 | } |
| 80 | |
| 81 | /* OK, we found an assignment. Break the line into substrings |
| 82 | * representing the lefthand and righthand sides of the assignment. |
| 83 | */ |
| 84 | line[match[1].rm_eo] = '\0'; |
| 85 | line[match[2].rm_eo] = '\0'; |
| 86 | name = &line[match[1].rm_so]; |
| 87 | value = &line[match[2].rm_so]; |
| 88 | |
| 89 | /* now look up the coreboot parameter name */ |
| 90 | if (is_checksum_name(name) |
| 91 | || (e = find_cmos_entry(name)) == NULL) { |
| 92 | fprintf(stderr, |
| 93 | "%s: Error on line %d of input file: CMOS parameter " |
| 94 | "%s not found.\n", prog_name, line_num, name); |
| 95 | exit(1); |
| 96 | } |
| 97 | |
| 98 | /* At this point, we figure out what numeric value needs to be written |
| 99 | * to which location. At the same time, we perform sanity checking on |
| 100 | * the write operation. |
| 101 | */ |
| 102 | |
| 103 | if ((item = (cmos_write_t *) malloc(sizeof(*item))) == NULL) |
| 104 | out_of_memory(); |
| 105 | |
| 106 | item->bit = e->bit; |
no test coverage detected