FreeCalypso > hg > freecalypso-sw
view loadtools/lthelp.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 | 02cb0206aa47 |
children |
line wrap: on
line source
/* * This module implements the loadtool help facility. */ #include <stdio.h> #include <ctype.h> #include <string.h> #include <strings.h> #include <stdlib.h> extern char loadtool_help_file[]; loadtool_help(topic) char *topic; { FILE *f; char linebuf[256]; char *cp, *np; int flag; f = fopen(loadtool_help_file, "r"); if (!f) { perror(loadtool_help_file); return(-1); } for (;;) { if (!fgets(linebuf, sizeof linebuf, f)) { fprintf(stderr, "Help topic \"%s\" not found\n", topic); fclose(f); return(-1); } if (linebuf[0] != '=' || linebuf[1] != '=' || linebuf[2] != '=') continue; for (cp = linebuf + 3; isspace(*cp); cp++) ; for (np = cp; *cp && !isspace(*cp); cp++) ; if (*cp) *cp++ = '\0'; if (!strcmp(np, topic)) break; } for (flag = 0; fgets(linebuf, sizeof linebuf, f); ) { if (linebuf[0] == '=' && linebuf[1] == '=' && linebuf[2] == '=') { if (flag) break; else continue; } fputs(linebuf, stdout); flag = 1; } fclose(f); return(0); } cmd_help(argc, argv) char **argv; { char flashtopic[32]; switch (argc) { case 1: return loadtool_help("main"); case 2: return loadtool_help(argv[1]); case 3: if ((!strcmp(argv[1], "flash") || !strcmp(argv[1], "flash2")) && strlen(argv[2]) <= 20) { sprintf(flashtopic, "flash:%s", argv[2]); return loadtool_help(flashtopic); } fprintf(stderr, "No such help topic\n"); return(-1); default: fprintf(stderr, "internal error in cmd_help(): bad argc\n"); abort(); } }