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/********************************************************************
* Description: inivar.c
* prints to stdout the INI file result of a variable-in-section
* search, useful for scripts that want to pick things out of INI files.
*
* syntax: inivar -var <variable> {-sec <section>} {<-ini inifile>}
*
* Uses emc.ini as default. <variable> needs to be supplied. If <section>
* is omitted, first instance of <variable> will be looked for in any
* section. Otherwise only a match of the variable in <section> will
* be returned.
*
* Derived from a work by Fred Proctor & Will Shackleford
*
* Author:
* License: GPL Version 2
* System: Linux
*
* Copyright (c) 2004 All rights reserved.
*
* Last change:
********************************************************************/
#include <stdio.h> /* printf(), fprintf(), FILE, fopen(),*/
#include <stdlib.h> /* exit() */
#include <string.h> /* strcmp(), strcpy() */
#include <limits.h>
#include "config.h"
#include "inifile.hh"
int main(int argc, char *argv[])
{
int t;
int num = 1;
char _variable[LINELEN] = "";
char *variable = 0;
char _section[LINELEN] = "";
char *section = 0;
char path[LINELEN] = "emc.ini";
const char *inistring;
int retval;
bool tildeexpand=false;
/* process command line args, indexing argv[] from [1] */
for (t = 1; t < argc; t++) {
if (!strcmp(argv[t], "-ini")) {
if (t == argc - 1) {
/* no arg following -ini, so abort */
fprintf(stderr,
"%s: ini file not specified after -ini\n", argv[0]);
exit(1);
} else {
strncpy(path, argv[t + 1], LINELEN);
t++; /* step over following arg */
}
} else if (!strcmp(argv[t], "-var")) {
if (t == argc - 1) {
/* no arg following -var, so abort */
fprintf(stderr,
"%s: variable name not specified after -var\n", argv[0]);
exit(1);
} else {
strncpy(_variable, argv[t + 1], LINELEN);
variable = _variable;
t++; /* step over following arg */
}
} else if (!strcmp(argv[t], "-sec")) {
if (t == argc - 1) {
/* no arg following -sec, so abort */
fprintf(stderr,
"%s: section name not specified after -sec\n", argv[0]);
exit(1);
} else {
strncpy(_section, argv[t + 1], LINELEN);
section = _section;
t++; /* step over following arg */
}
} else if (!strcmp(argv[t], "-num")) {
if (t == argc - 1) {
/* no arg following -num, so abort */
fprintf(stderr,
"%s: line not specified after -num\n", argv[0]);
exit(1);
} else {
if (sscanf(argv[t + 1], "%i", &num) != 1) {
fprintf(stderr,
"%s: invalid number after -num\n", argv[0]);
exit(1);
}
t++; /* step over following arg */
}
} else if (!strcmp(argv[t], "-tildeexpand")) {
tildeexpand = !tildeexpand;
} else{
/* invalid argument */
fprintf(stderr,
"%s: -var <variable> {-sec <section>} {<-ini inifile>} [-num <nth item>]\n",
argv[0]);
exit(1);
}
}
/* check that variable was supplied */
if (0 == variable) {
fprintf(stderr, "%s: no variable supplied\n", argv[0]);
exit(1);
}
IniFile inifile;
/* open the inifile */
inifile.Open(path);
if (inifile.IsOpen() == false) {
fprintf(stderr, "%s: can't open %s\n", argv[0], path);
exit(-1);
}
inistring = inifile.Find(variable, section, num);
if (inistring != NULL) {
if(tildeexpand)
{
char expanded[PATH_MAX];
inifile.TildeExpansion(inistring, expanded, sizeof(expanded));
printf("%s\n", expanded);
} else {
printf("%s\n", inistring);
}
retval = 0;
} else {
fprintf(stderr, "Can not find -sec %s -var %s -num %i \n", section, variable, num);
retval = 1;
}
exit(retval);
}
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