FreeCalypso > hg > freecalypso-sw
view rvinterf/etmsync/dispatch.c @ 992:a7b0b426f9ca
target-utils: boot ROM UART autodetection revamped
The new implementation should work with both the familiar Calypso C035
boot ROM version found in our regular targets as well as the older
Calypso F741979B version found on the vintage D-Sample board.
author | Mychaela Falconia <falcon@ivan.Harhan.ORG> |
---|---|
date | Wed, 30 Dec 2015 21:28:41 +0000 |
parents | 69e8ae2b5ba2 |
children |
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/* * This module implements the command dispatch for fc-fsio * and possibly other similar utilities in the future. */ #include <ctype.h> #include <stdio.h> #include <string.h> #include <strings.h> #include <stdlib.h> #include "cmdtab.h" #include "exitcodes.h" extern struct cmdtab cmdtab[]; parse_and_dispatch_cmd(cmd, is_script) char *cmd; { char *argv[MAX_CMD_ARGS+2]; char *cp, **ap; struct cmdtab *tp; for (cp = cmd; isspace(*cp); cp++) ; if (!*cp || *cp == '#') return(0); if (is_script) printf("Script command: %s\n", cp); argv[0] = cp; while (*cp && !isspace(*cp)) cp++; if (*cp) *cp++ = '\0'; for (tp = cmdtab; tp->cmd; tp++) if (!strcmp(tp->cmd, argv[0])) break; if (!tp->func) { fprintf(stderr, "error: no such command\n"); return(ERROR_USAGE); } for (ap = argv + 1; ; ) { while (isspace(*cp)) cp++; if (!*cp || *cp == '#') break; if (ap - argv - 1 >= tp->maxargs) { fprintf(stderr, "error: too many arguments\n"); return(ERROR_USAGE); } if (*cp == '"') { *ap++ = ++cp; while (*cp && *cp != '"') cp++; if (*cp != '"') { fprintf(stderr, "error: unterminated quoted string\n"); return(ERROR_USAGE); } *cp++ = '\0'; } else { *ap++ = cp; while (*cp && !isspace(*cp)) cp++; if (*cp) *cp++ = '\0'; } } if (ap - argv - 1 < tp->minargs) { fprintf(stderr, "error: too few arguments\n"); return(ERROR_USAGE); } *ap = 0; return tp->func(ap - argv, argv); } dispatch_ready_argv(argc, argv) char **argv; { struct cmdtab *tp; for (tp = cmdtab; tp->cmd; tp++) if (!strcmp(tp->cmd, argv[0])) break; if (!tp->func) { fprintf(stderr, "error: no such command\n"); return(ERROR_USAGE); } if (argc - 1 > tp->maxargs) { fprintf(stderr, "error: too many arguments\n"); return(ERROR_USAGE); } if (argc - 1 < tp->minargs) { fprintf(stderr, "error: too few arguments\n"); return(ERROR_USAGE); } return tp->func(argc, argv); } cmd_exec(argc, argv) char **argv; { FILE *f; char linebuf[512], *cp; int lineno, retval = 0; f = fopen(argv[1], "r"); if (!f) { perror(argv[1]); return(ERROR_USAGE); } for (lineno = 1; fgets(linebuf, sizeof linebuf, f); lineno++) { cp = index(linebuf, '\n'); if (!cp) { fprintf(stderr, "%s line %d: missing newline\n", argv[1], lineno); fclose(f); return(ERROR_USAGE); } *cp = '\0'; retval = parse_and_dispatch_cmd(linebuf, 1); if (retval) break; } fclose(f); return(retval); } cmd_exit() { exit(0); }