FreeCalypso > hg > freecalypso-tools

comparison libpwon/readconf.c @ 571:41b3e010808d

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libpwon started, compiles
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 02 Feb 2020 17:40:25 +0000
parents
children 7d1df6d831e4
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570:fb3deb215cb0 571:41b3e010808d
1 #include <ctype.h>
2 #include <stdio.h>
3 #include <stdlib.h>
4 #include <string.h>
5 #include <strings.h>
6
7 static char conf_file_pathname[] = "/opt/freecalypso/bootctrl.conf";
8
9 #define MAX_BOOTCTRL_CONF_LINE 510
10
11 char bootctrl_pwon_cmd[MAX_BOOTCTRL_CONF_LINE+1];
12
13 find_bootctrl_entry(soughtname)
14 char *soughtname;
15 {
16 FILE *inf;
17 char linebuf[MAX_BOOTCTRL_CONF_LINE+2];
18 int lineno;
19 char *cp, *np;
20
21 inf = fopen(conf_file_pathname, "r");
22 if (!inf) {
23 perror(conf_file_pathname);
24 return(-1);
25 }
26 for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++) {
27 cp = index(linebuf, '\n');
28 if (!cp) {
29 fprintf(stderr,
30 "%s line %d: too long or missing newline\n",
31 conf_file_pathname, lineno);
32 fclose(inf);
33 return(-1);
34 }
35 *cp = '\0';
36 for (cp = linebuf; isspace(*cp); cp++)
37 ;
38 if (*cp == '\0' || *cp == '#')
39 continue;
40 for (np = cp; *cp && !isspace(*cp); cp++)
41 ;
42 if (!*cp) {
43 invalid_syntax: fprintf(stderr, "%s line %d: invalid syntax\n",
44 conf_file_pathname, lineno);
45 fclose(inf);
46 return(-1);
47 }
48 *cp++ = '\0';
49 while (isspace(*cp))
50 cp++;
51 if (*cp == '\0' || *cp == '#')
52 goto invalid_syntax;
53 if (!strcmp(np, soughtname)) {
54 strcpy(bootctrl_pwon_cmd, cp);
55 fclose(inf);
56 return(0);
57 }
58 }
59 fclose(inf);
60 fprintf(stderr, "error: no \"%s\" entry found in %s\n", soughtname,
61 conf_file_pathname);
62 return(-1);
63 }