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https://github.com/eddyem/eddys_snippets.git
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63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include "hdr.h"
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#include "strfunc.h"
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static int noargs(uint32_t hash){
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switch(hash){
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case CMD_REBOOT: printf("REBOOT\n"); break;
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case CMD_TIME: printf("TIME!\n"); break;
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case CMD_TEMP: printf("Temp\n"); break;
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default: printf("Unknown hash 0x%x\n", hash); return 0;
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}
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return 1;
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}
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static int withparno(uint32_t hash, char *args){
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uint32_t N;
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//printf("args=%s\n", args);
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const char *nxt = getnum((const char*)args, &N);
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if(nxt == args){ printf("need arg\n"); return RET_WRONGCMD; }
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args = (char*)omit_spaces(nxt);
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if(*args){
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if(*args != '='){ printf("need nothing or '=' after par\n"); return RET_WRONGCMD; }
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args = (char*)omit_spaces(args+1);
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// we can check in next functions what if `args` will be an empty string
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}
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else args = NULL;
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const char *fname = NULL;
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switch(hash){
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case CMD_ESW: fname = "ESW"; break;
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case CMD_GOTO: fname = "GOTO"; break;
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case CMD_POS: fname = "POS"; break;
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case CMD_STOP: fname = "STOP"; break;
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default: fname = "unknown";
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}
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if(!args) printf("We want a getter '%s' with par %u\n", fname, N);
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else printf("We want a setter '%s' with par %u and arg '%s'\n", fname, N, args);
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if(N > 255){ printf("N should be 0..255\n"); return RET_BAD;}
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return RET_GOOD;
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}
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// these functions should be global to substitute weak aliases
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int fn_esw(uint32_t hash, char *args){return withparno(hash, args);}
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int fn_goto(uint32_t hash, char *args){return withparno(hash, args);}
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int fn_pos(uint32_t hash, char *args){return withparno(hash, args);}
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int fn_stop(uint32_t hash, char *args){return withparno(hash, args);}
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int fn_voltage(uint32_t hash, char *args){return withparno(hash, args);}
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int fn_reboot(uint32_t hash, _U_ char *args){return noargs(hash);}
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int fn_time(uint32_t hash, _U_ char *args){return noargs(hash);}
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int fn_temp(uint32_t hash, _U_ char *args){return noargs(hash);}
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int main(int argc, char **argv){
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if(argc != 2) return 1;
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int ret = parsecmd(argv[1]);
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switch(ret){
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case RET_CMDNOTFOUND: printf("'%s' not found\n", argv[1]); break;
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case RET_WRONGCMD: printf("Wrong sintax of '%s'\n", argv[1]); break;
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case RET_GOOD: printf("'%s' - OK\n", argv[1]); break;
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default: printf("'%s' - bad\n", argv[1]);
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}
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return 0;
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}
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