FreeCalypso > hg > freecalypso-tools

annotate rvinterf/etmsync/fsnew.c @ 416:30f6d1c32c6f

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doc/Flash-boot-defect article removed (no longer relevant) This article is no longer relevant because the issue in question only affected one (1) defective FCDEV3B board which was not and never will be sold.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 26 Oct 2018 07:11:08 +0000
parents 0cb766828d7a
children 003e48f8ebe1
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1 /*
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2 * In this module we are going to implement the commands that upload
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3 * new FreeCalypso-invented stuff into the FFS of our FC devices.
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4 */
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5
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6 #include <sys/wait.h>
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <unistd.h>
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10 #include "exitcodes.h"
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11
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12 char batterytab_compile_tool[] = "/opt/freecalypso/bin/compile-fc-batt";
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13 char charging_compile_tool[] = "/opt/freecalypso/bin/compile-fc-chg";
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14
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15 upload_fc_table_from_ascii(asciisrc, compiletool, ffs_pathname)
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16 char *asciisrc, *compiletool, *ffs_pathname;
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17 {
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18 char tmpfile[] = "/tmp/fc-fsioXXXXXX";
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19 int tmpfd;
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20 pid_t child, waitres;
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21 int status, rc;
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22
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23 tmpfd = mkstemp(tmpfile);
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24 if (tmpfd < 0) {
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25 fprintf(stderr, "unable to get temp file via mkstemp()\n");
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26 return(ERROR_UNIX);
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27 }
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28 close(tmpfd);
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29 child = vfork();
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30 if (child < 0) {
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31 fprintf(stderr, "unable to vfork to run compiler tool\n");
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32 unlink(tmpfile);
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33 return(ERROR_UNIX);
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34 }
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35 if (!child) {
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36 execl(compiletool, compiletool, asciisrc, tmpfile, 0);
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37 perror(compiletool);
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38 _exit(ERROR_UNIX);
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39 }
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40 waitres = waitpid(child, &status, 0);
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41 if (waitres != child || !WIFEXITED(status)) {
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42 fprintf(stderr, "unexpected wait result after compiler run\n");
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43 unlink(tmpfile);
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44 return(ERROR_UNIX);
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45 }
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46 rc = WEXITSTATUS(status);
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47 if (rc) {
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48 unlink(tmpfile);
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49 return rc;
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50 }
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51 rc = fwrite_from_file(ffs_pathname, tmpfile);
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52 unlink(tmpfile);
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53 return rc;
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54 }
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55
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56 cmd_write_battery_table(argc, argv)
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57 char **argv;
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58 {
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59 return upload_fc_table_from_ascii(argv[1], batterytab_compile_tool,
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60 "/etc/batterytab");
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61 }
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62
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63 cmd_write_charging_config(argc, argv)
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64 char **argv;
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65 {
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66 return upload_fc_table_from_ascii(argv[1], charging_compile_tool,
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67 "/etc/charging");
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68 }