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annotate loadtools/initscript.c @ 88:ccde45a06737

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nuc-fw: beginning of the configuration mechanism
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Fri, 23 Aug 2013 02:02:59 +0000
parents 10996c267de4
children
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45
16315ed6401a init-script logic implemented in fc-xram
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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1 /*
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2 * This module has been copied from ltscript.c, ltdispatch.c and ltpassthru.c:
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3 * here we implement the init-script functionality for fc-xram.
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4 */
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5
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6 #include <sys/param.h>
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7 #include <stdio.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include <stdlib.h>
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11
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12 extern char default_helpers_dir[];
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13
54
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14 extern int cmd_baud();
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15
45
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16 static
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17 loadagent_cmd(argc, argv)
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18 char **argv;
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19 {
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20 if (tpinterf_make_cmd(argv) < 0) {
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21 fprintf(stderr, "error: unable to form target command\n");
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22 return(-1);
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23 }
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24 if (tpinterf_send_cmd() < 0)
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25 return(-1);
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26 return tpinterf_pass_output(1);
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27 }
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28
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29 static struct cmdtab {
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30 char *cmd;
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31 int minargs;
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32 int maxargs;
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33 int (*func)();
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34 } cmdtab[] = {
54
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35 {"baud", 1, 1, cmd_baud},
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36 {"w8", 2, 2, loadagent_cmd},
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37 {"w16", 2, 2, loadagent_cmd},
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38 {"w32", 2, 2, loadagent_cmd},
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39 {0, 0, 0, 0}
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40 };
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41
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42 static
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43 dispatch_cmd(cmd)
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44 char *cmd;
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45 {
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46 char *argv[10];
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47 char *cp, **ap;
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48 struct cmdtab *tp;
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49
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50 for (cp = cmd; isspace(*cp); cp++)
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51 ;
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52 if (!*cp || *cp == '#')
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53 return(0);
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54 printf("init-script command: %s\n", cp);
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55 argv[0] = cp;
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56 while (*cp && !isspace(*cp))
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57 cp++;
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58 if (*cp)
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59 *cp++ = '\0';
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60 for (tp = cmdtab; tp->cmd; tp++)
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61 if (!strcmp(tp->cmd, argv[0]))
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62 break;
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63 if (!tp->func) {
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64 fprintf(stderr, "error: no such command\n");
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65 return(-1);
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66 }
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67 for (ap = argv + 1; ; ) {
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68 while (isspace(*cp))
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69 cp++;
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70 if (!*cp || *cp == '#')
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71 break;
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72 if (ap - argv - 1 >= tp->maxargs) {
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73 fprintf(stderr, "error: too many arguments\n");
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74 return(-1);
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75 }
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76 *ap++ = cp;
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77 while (*cp && !isspace(*cp))
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78 cp++;
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79 if (*cp)
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80 *cp++ = '\0';
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81 }
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82 if (ap - argv - 1 < tp->minargs) {
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83 fprintf(stderr, "error: too few arguments\n");
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84 return(-1);
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85 }
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86 *ap = 0;
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87 return tp->func(ap - argv, argv);
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88 }
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89
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90 exec_init_script(script_name)
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91 char *script_name;
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92 {
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93 char pathbuf[MAXPATHLEN], *openfname;
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94 FILE *f;
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95 char linebuf[512], *cp;
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96 int lineno, retval = 0;
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97
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98 if (index(script_name, '/'))
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99 openfname = script_name;
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100 else {
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101 sprintf(pathbuf, "%s/%s", default_helpers_dir, script_name);
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102 openfname = pathbuf;
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103 }
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104 f = fopen(openfname, "r");
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105 if (!f) {
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106 perror(openfname);
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107 return(-1);
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108 }
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109 for (lineno = 1; fgets(linebuf, sizeof linebuf, f); lineno++) {
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110 cp = index(linebuf, '\n');
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111 if (!cp) {
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112 fprintf(stderr, "%s line %d: missing newline\n",
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113 openfname, lineno);
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114 fclose(f);
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115 return(-1);
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116 }
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117 *cp = '\0';
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118 retval = dispatch_cmd(linebuf);
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119 if (retval)
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120 break;
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121 }
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122 fclose(f);
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123 return(retval);
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124 }