FreeCalypso > hg > freecalypso-tools
view rvinterf/etmsync/fsnew.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 | 37b38b1a1136 |
children |
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/* * In this module we are going to implement the commands that upload * new FreeCalypso-invented stuff into the FFS of our FC devices. */ #include <sys/wait.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include "exitcodes.h" char batterytab_compile_tool[] = "/opt/freecalypso/bin/compile-fc-batt"; char batterytab2_compile_tool[] = "/opt/freecalypso/bin/compile-fc-batt2"; char charging_compile_tool[] = "/opt/freecalypso/bin/compile-fc-chg"; upload_fc_table_from_ascii(asciisrc, compiletool, ffs_pathname) char *asciisrc, *compiletool, *ffs_pathname; { char tmpfile[] = "/tmp/fc-fsioXXXXXX"; int tmpfd; pid_t child, waitres; int status, rc; tmpfd = mkstemp(tmpfile); if (tmpfd < 0) { fprintf(stderr, "unable to get temp file via mkstemp()\n"); return(ERROR_UNIX); } close(tmpfd); child = vfork(); if (child < 0) { fprintf(stderr, "unable to vfork to run compiler tool\n"); unlink(tmpfile); return(ERROR_UNIX); } if (!child) { execl(compiletool, compiletool, asciisrc, tmpfile, (char *) 0); perror(compiletool); _exit(ERROR_UNIX); } waitres = waitpid(child, &status, 0); if (waitres != child || !WIFEXITED(status)) { fprintf(stderr, "unexpected wait result after compiler run\n"); unlink(tmpfile); return(ERROR_UNIX); } rc = WEXITSTATUS(status); if (rc) { unlink(tmpfile); return rc; } rc = fwrite_from_file(ffs_pathname, tmpfile); unlink(tmpfile); return rc; } cmd_write_battery_table_v1(argc, argv) char **argv; { return upload_fc_table_from_ascii(argv[1], batterytab_compile_tool, "/etc/batterytab"); } cmd_write_battery_table_v2(argc, argv) char **argv; { return upload_fc_table_from_ascii(argv[1], batterytab2_compile_tool, "/etc/batterytab2"); } cmd_write_charging_config(argc, argv) char **argv; { return upload_fc_table_from_ascii(argv[1], charging_compile_tool, "/etc/charging"); } cmd_write_bsim_config(argc, argv) char **argv; { static char filename[] = "/etc/batterysim"; u_char bytes[4]; bytes[0] = strtoul(argv[1], 0, 0); bytes[1] = strtoul(argv[2], 0, 0); bytes[2] = 0; /* RFU */ bytes[3] = 0; /* RFU */ return do_short_fwrite(filename, bytes, 4); }