view libpwon/readconf.c @ 718:098fea21ba13

doc/Host-tools-overview: tiffs-mkfs description updated The first version of tiffs-mkfs did not include a journal file in the created FFS, expecting the firmware to create it on first boot. All historical firmwares prior to a recent FC fix (2020-05) contain a bug in that code path, thus images made with the first version of tiffs-mkfs were only acceptable to very recent FC firmwares. tiffs-mkfs has now been extended to include an empty journal in the created FFS, thus the restriction of working with recent fw only has been lifted.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 23 Aug 2020 04:55:02 +0000
parents 41b3e010808d
children 7d1df6d831e4
line wrap: on
line source

#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>

static char conf_file_pathname[] = "/opt/freecalypso/bootctrl.conf";

#define	MAX_BOOTCTRL_CONF_LINE	510

char bootctrl_pwon_cmd[MAX_BOOTCTRL_CONF_LINE+1];

find_bootctrl_entry(soughtname)
	char *soughtname;
{
	FILE *inf;
	char linebuf[MAX_BOOTCTRL_CONF_LINE+2];
	int lineno;
	char *cp, *np;

	inf = fopen(conf_file_pathname, "r");
	if (!inf) {
		perror(conf_file_pathname);
		return(-1);
	}
	for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++) {
		cp = index(linebuf, '\n');
		if (!cp) {
			fprintf(stderr,
				"%s line %d: too long or missing newline\n",
				conf_file_pathname, lineno);
			fclose(inf);
			return(-1);
		}
		*cp = '\0';
		for (cp = linebuf; isspace(*cp); cp++)
			;
		if (*cp == '\0' || *cp == '#')
			continue;
		for (np = cp; *cp && !isspace(*cp); cp++)
			;
		if (!*cp) {
invalid_syntax:		fprintf(stderr, "%s line %d: invalid syntax\n",
				conf_file_pathname, lineno);
			fclose(inf);
			return(-1);
		}
		*cp++ = '\0';
		while (isspace(*cp))
			cp++;
		if (*cp == '\0' || *cp == '#')
			goto invalid_syntax;
		if (!strcmp(np, soughtname)) {
			strcpy(bootctrl_pwon_cmd, cp);
			fclose(inf);
			return(0);
		}
	}
	fclose(inf);
	fprintf(stderr, "error: no \"%s\" entry found in %s\n", soughtname,
		conf_file_pathname);
	return(-1);
}