chndlr

Personal fork of spm (simple password manager)
git clone git@nonplanar.org:chndlr.git
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chndlr.c (1596B)

      1 /* See LICENSE file for copyright and license details. */
      2 #include <stdlib.h>
      3 #include <string.h>
      4 #include <stdio.h>
      5 #include <regex.h>
      6 #include <unistd.h>
      7 
      8 typedef struct {
      9 	const char *regex;
     10 	const char **action;
     11 } Pair;
     12 
     13 #include "config.h"
     14 
     15 int i;
     16 char cmd[BUFSIZ], *cmdv[BUFSIZ/16];
     17 regmatch_t match[9];
     18 
     19 int
     20 reexec(char *uri, const char **args) {
     21 	const char *arg;
     22 	char *p = cmd;
     23 	int len;
     24 
     25 	while (*args) {
     26 		arg = *args;
     27 		cmdv[args - pairs[i].action] = p;
     28 
     29 		while (*arg) {
     30 			if (*arg == '%') {
     31 				unsigned char nc = *(arg + 1);
     32 				/* check if N in %N is between 0 and 9 */
     33 				int group = nc - '0';
     34 				if (group <= 9) {
     35 					len = match[group].rm_eo - match[group].rm_so;
     36 					snprintf(p, len + 1, "%.*s", len, uri + match[group].rm_so);
     37 				} else /* if (nc == 's') */ {
     38 					len = sprintf(p, "%s", uri);
     39 				}
     40 				arg += 2;
     41 				p += len;
     42 			} else {
     43 				*p++ = *arg++;
     44 			}
     45 		}
     46 
     47 		*p++ = '\0';
     48 		args++;
     49 	}
     50 
     51 	return execvp(*cmdv, cmdv);
     52 }
     53 
     54 
     55 int
     56 main(int argc, char *argv[]){
     57 	regex_t regex;
     58 
     59 	/* we only take one argument */
     60 	if (argc != 2)
     61 		return EXIT_FAILURE;
     62 
     63 	/* check regex and launch action if it matches argv[1] */
     64 	for (i=0; i < sizeof(pairs)/sizeof(*pairs); ++i) {
     65 		if (regcomp(&regex, pairs[i].regex, REG_EXTENDED))
     66 			fprintf(stderr, "invalid regex: %s\n", pairs[i].regex);
     67 
     68 		if (regexec(&regex, argv[1], 9, match, 0) == 0) {
     69 			regfree(&regex);
     70 			return reexec(argv[1], pairs[i].action);
     71 		}
     72 	}
     73 
     74 	regfree(&regex);
     75 
     76 	/* alternatively, fall back to chndlr_fallback_cmd */
     77 	sprintf(cmd, "%s%s", chndlr_fallback_cmd, argv[1]);
     78 	system(cmd);
     79 	return EXIT_SUCCESS;
     80 }