FreeCalypso > hg > freecalypso-sw
annotate rvinterf/etmsync/dispatch.c @ 287:211b35db427c
fc-fsio: cpout of single files implemented
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Fri, 28 Feb 2014 08:22:50 +0000 |
parents | 082d12a1651e |
children | 69e8ae2b5ba2 |
rev | line source |
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1 /* |
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2 * This module implements the command dispatch for fc-fsio |
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3 * and possibly other similar utilities in the future. |
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4 */ |
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5 |
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6 #include <ctype.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 #include "cmdtab.h" |
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12 #include "exitcodes.h" |
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13 |
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14 extern struct cmdtab cmdtab[]; |
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15 |
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16 parse_and_dispatch_cmd(cmd, is_script) |
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17 char *cmd; |
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18 { |
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19 char *argv[MAX_CMD_ARGS+2]; |
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20 char *cp, **ap; |
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21 struct cmdtab *tp; |
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22 |
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23 for (cp = cmd; isspace(*cp); cp++) |
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24 ; |
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25 if (!*cp || *cp == '#') |
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26 return(0); |
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27 if (is_script) |
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28 printf("Script command: %s\n", cp); |
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29 argv[0] = cp; |
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30 while (*cp && !isspace(*cp)) |
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31 cp++; |
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32 if (*cp) |
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33 *cp++ = '\0'; |
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34 for (tp = cmdtab; tp->cmd; tp++) |
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35 if (!strcmp(tp->cmd, argv[0])) |
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36 break; |
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37 if (!tp->func) { |
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38 fprintf(stderr, "error: no such command\n"); |
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39 return(ERROR_USAGE); |
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40 } |
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41 for (ap = argv + 1; ; ) { |
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42 while (isspace(*cp)) |
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43 cp++; |
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44 if (!*cp || *cp == '#') |
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45 break; |
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46 if (ap - argv - 1 >= tp->maxargs) { |
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47 fprintf(stderr, "error: too many arguments\n"); |
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48 return(ERROR_USAGE); |
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49 } |
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50 *ap++ = cp; |
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51 while (*cp && !isspace(*cp)) |
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52 cp++; |
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53 if (*cp) |
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54 *cp++ = '\0'; |
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55 } |
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56 if (ap - argv - 1 < tp->minargs) { |
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57 fprintf(stderr, "error: too few arguments\n"); |
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58 return(ERROR_USAGE); |
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59 } |
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60 *ap = 0; |
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61 return tp->func(ap - argv, argv); |
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62 } |
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63 |
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64 dispatch_ready_argv(argc, argv) |
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65 char **argv; |
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66 { |
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67 struct cmdtab *tp; |
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68 |
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69 for (tp = cmdtab; tp->cmd; tp++) |
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70 if (!strcmp(tp->cmd, argv[0])) |
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71 break; |
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72 if (!tp->func) { |
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73 fprintf(stderr, "error: no such command\n"); |
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74 return(ERROR_USAGE); |
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75 } |
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76 if (argc - 1 > tp->maxargs) { |
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77 fprintf(stderr, "error: too many arguments\n"); |
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78 return(ERROR_USAGE); |
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79 } |
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80 if (argc - 1 < tp->minargs) { |
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81 fprintf(stderr, "error: too few arguments\n"); |
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82 return(ERROR_USAGE); |
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83 } |
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84 return tp->func(argc, argv); |
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85 } |
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86 |
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87 cmd_exec(argc, argv) |
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88 char **argv; |
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89 { |
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90 FILE *f; |
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91 char linebuf[512], *cp; |
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92 int lineno, retval = 0; |
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93 |
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94 f = fopen(argv[1], "r"); |
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95 if (!f) { |
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96 perror(argv[1]); |
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97 return(ERROR_USAGE); |
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98 } |
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99 for (lineno = 1; fgets(linebuf, sizeof linebuf, f); lineno++) { |
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100 cp = index(linebuf, '\n'); |
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101 if (!cp) { |
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102 fprintf(stderr, "%s line %d: missing newline\n", |
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103 argv[1], lineno); |
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104 fclose(f); |
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105 return(ERROR_USAGE); |
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106 } |
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107 *cp = '\0'; |
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108 retval = parse_and_dispatch_cmd(linebuf, 1); |
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109 if (retval) |
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110 break; |
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111 } |
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112 fclose(f); |
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113 return(retval); |
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114 } |
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115 |
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116 cmd_exit() |
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117 { |
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118 exit(0); |
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119 } |