FreeCalypso > hg > freecalypso-tools
view librftab/readfir.c @ 921:74d284add54d
fc-fsio: guard against bogus readdir results from the target
If the FFS being operated on contains SE K2x0 extended filenames,
readdir will return strings that are bad for printing. We need to
guard against this possibility, and also against possible other
bogosity that could be sent by other alien firmwares.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 31 Dec 2022 22:55:23 +0000 |
parents | 9178594bc283 |
children |
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/* * Reading FIR coefficient tables from formatted ASCII files, used for the * auw-fir command in fc-tmsh. */ #include <sys/types.h> #include <ctype.h> #include <stdio.h> #include <string.h> #include <strings.h> #include <stdlib.h> #include "../rvinterf/include/exitcodes.h" #include "rdcommon.c" static u_char *writeptr; static process_number() { char *field; int rc; long number; rc = get_field(&field); if (rc < 0) return(ERROR_USAGE); if (!rc) { printf("error: %s is too short for a FIR coefficient table\n", filename); return(ERROR_USAGE); } number = strtol(field, 0, 0); *writeptr++ = number; *writeptr++ = number >> 8; return(0); } read_fir_coeff_table(filename_arg, rdbuf) char *filename_arg; u_char *rdbuf; { char *field; int rc, i; filename = filename_arg; rdfile = fopen(filename, "r"); if (!rdfile) { perror(filename); return(ERROR_UNIX); } lineno = 0; line_nfields = 0; rc = get_field(&field); if (rc <= 0) { not_valid_fir_table: printf("error: %s is not a valid FIR coefficient table file\n", filename); fclose(rdfile); return(ERROR_USAGE); } if (strcmp(field, "fir-coeff-table")) goto not_valid_fir_table; writeptr = rdbuf; for (i = 0; i < 31; i++) { rc = process_number(); if (rc) { fclose(rdfile); return(rc); } } rc = get_field(&field); fclose(rdfile); if (rc < 0) return(ERROR_USAGE); if (rc) { printf("error: %s is too long for a FIR coefficient table\n", filename); return(ERROR_USAGE); } return(0); }