FreeCalypso > hg > freecalypso-tools
annotate libpwon/readconf.c @ 606:519689d3e1c7
doc/opt-freecalypso-tree: scripts addition documented
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 10 Feb 2020 04:03:06 +0000 |
parents | 41b3e010808d |
children | 7d1df6d831e4 |
rev | line source |
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571
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1 #include <ctype.h> |
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2 #include <stdio.h> |
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3 #include <stdlib.h> |
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4 #include <string.h> |
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5 #include <strings.h> |
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6 |
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7 static char conf_file_pathname[] = "/opt/freecalypso/bootctrl.conf"; |
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8 |
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9 #define MAX_BOOTCTRL_CONF_LINE 510 |
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10 |
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11 char bootctrl_pwon_cmd[MAX_BOOTCTRL_CONF_LINE+1]; |
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12 |
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13 find_bootctrl_entry(soughtname) |
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14 char *soughtname; |
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15 { |
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16 FILE *inf; |
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17 char linebuf[MAX_BOOTCTRL_CONF_LINE+2]; |
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18 int lineno; |
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19 char *cp, *np; |
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20 |
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21 inf = fopen(conf_file_pathname, "r"); |
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22 if (!inf) { |
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23 perror(conf_file_pathname); |
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24 return(-1); |
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25 } |
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26 for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++) { |
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27 cp = index(linebuf, '\n'); |
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28 if (!cp) { |
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29 fprintf(stderr, |
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30 "%s line %d: too long or missing newline\n", |
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31 conf_file_pathname, lineno); |
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32 fclose(inf); |
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33 return(-1); |
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34 } |
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35 *cp = '\0'; |
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36 for (cp = linebuf; isspace(*cp); cp++) |
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37 ; |
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38 if (*cp == '\0' || *cp == '#') |
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39 continue; |
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40 for (np = cp; *cp && !isspace(*cp); cp++) |
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41 ; |
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42 if (!*cp) { |
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43 invalid_syntax: fprintf(stderr, "%s line %d: invalid syntax\n", |
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44 conf_file_pathname, lineno); |
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45 fclose(inf); |
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46 return(-1); |
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47 } |
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48 *cp++ = '\0'; |
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49 while (isspace(*cp)) |
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50 cp++; |
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51 if (*cp == '\0' || *cp == '#') |
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52 goto invalid_syntax; |
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53 if (!strcmp(np, soughtname)) { |
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54 strcpy(bootctrl_pwon_cmd, cp); |
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55 fclose(inf); |
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56 return(0); |
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57 } |
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58 } |
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59 fclose(inf); |
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60 fprintf(stderr, "error: no \"%s\" entry found in %s\n", soughtname, |
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61 conf_file_pathname); |
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62 return(-1); |
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63 } |