FreeCalypso > hg > freecalypso-tools
view librftab/rdcommon.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 | a0f79bba0ad8 |
children |
line wrap: on
line source
/* * This C file is not a compilation unit in itself, but is the common piece * (a set of static variables and functions) included in the librftab modules * responsible for reading different kinds of ASCII tables. */ #define MAX_FIELDS_PER_LINE 64 static char *filename; static FILE *rdfile; static unsigned lineno; static char linebuf[256], *line_fields[MAX_FIELDS_PER_LINE]; static unsigned line_nfields, line_field_ptr; static int read_line() { char *cp; if (!fgets(linebuf, sizeof linebuf, rdfile)) return(0); lineno++; cp = linebuf; for (line_nfields = 0; ; ) { while (isspace(*cp)) cp++; if (*cp == '\0' || *cp == '#') break; if (line_nfields >= MAX_FIELDS_PER_LINE) { printf("%s line %d: too many fields on one line\n", filename, lineno); return(-1); } line_fields[line_nfields++] = cp; while (*cp && !isspace(*cp)) cp++; if (*cp) *cp++ = '\0'; } return(1); } static get_field(retp) char **retp; { int rc; if (line_field_ptr < line_nfields) { *retp = line_fields[line_field_ptr++]; return(1); } do { rc = read_line(); if (rc <= 0) return(rc); } while (!line_nfields); *retp = line_fields[0]; line_field_ptr = 1; return(1); }