#include "compat.h"
#include "libconfig.h"
#include "libconfig_private.h"
#include "conf_section.h"
#ifdef HAVE_STDIO_H
#include <stdio.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
int lc_process_conf_section(const char *appname, const char *configfile) {
FILE *configfp = NULL;
char linebuf[LC_LINEBUF_LEN] = {0}, *linebuf_ptr = NULL;
char qualifbuf[LC_LINEBUF_LEN] = {0};
char *cmd = NULL, *value = NULL, *sep = NULL, *cmdend = NULL;
char *currsection = NULL;
char *fgetsret = NULL;
int lcpvret = -1;
int invalid_section = 1, ignore_section = 0;
int retval = 0;
lc_err_t save_lc_errno = LC_ERR_NONE;
if (appname == NULL || configfile == NULL) {
lc_errno = LC_ERR_INVDATA;
return(-1);
}
configfp = fopen(configfile, "r");
if (configfp == NULL) {
lc_errno = LC_ERR_CANTOPEN;
return(-1);
}
while (1) {
fgetsret = fgets(linebuf, sizeof(linebuf) - 1, configfp);
if (fgetsret == NULL) {
break;
}
if (feof(configfp)) {
break;
}
/* Remove trailing crap (but not spaces). */
linebuf_ptr = &linebuf[strlen(linebuf) - 1];
while (*linebuf_ptr < ' ' && linebuf_ptr >= linebuf) {
*linebuf_ptr = '\0';
*linebuf_ptr--;
}
/* Handle section header. */
if (linebuf[0] == '[' && linebuf[strlen(linebuf) - 1] == ']') {
linebuf[strlen(linebuf) - 1] = '\0';
linebuf_ptr = &linebuf[1];
/* If a section was open, close it. */
if (currsection != NULL) {
lcpvret = lc_process_var(currsection, NULL, NULL, LC_FLAGS_SECTIONEND);
if (lcpvret < 0) {
PRINTERR_D("Invalid section terminating: \"%s\"", currsection);
}
free(currsection);
}
/* Open new section. */
currsection = strdup(linebuf_ptr);
lcpvret = lc_process_var(currsection, NULL, NULL, LC_FLAGS_SECTIONSTART);
if (lcpvret < 0) {
PRINTERR_D("Invalid section: \"%s\"", currsection);
invalid_section = 1;
lc_errno = LC_ERR_INVSECTION;
retval = -1;
} else {
invalid_section = 0;
ignore_section = 0;
}
if (lcpvret == LC_CBRET_IGNORESECTION) {
ignore_section = 1;
}
continue;
}
/* Remove leading spaces. */
linebuf_ptr = &linebuf[0];
while (*linebuf_ptr == ' ') {
*linebuf_ptr++;
}
/* Drop comments and blank lines. */
if (*linebuf_ptr == ';' || *linebuf_ptr == '\0') {
continue;
}
/* Don't handle things for a section that doesn't exist. */
if (invalid_section == 1) {
PRINTERR_D("Ignoring line (because invalid section): %s", linebuf);
continue;
}
/* Don't process commands if this section is specifically ignored. */
if (ignore_section == 1) {
PRINTERR_D("Ignoring line (because ignored section): %s", linebuf);
continue;
}
/* Find the command and the data in the line. */
cmdend = sep = strpbrk(linebuf_ptr, "=");
if (sep == NULL) {
PRINTERR_D("Invalid line: \"%s\"", linebuf);
continue;
}
/* Delete space at the end of the command. */
*cmdend--; /* It currently derefs to the seperator.. */
while (*cmdend <= ' ') {
*cmdend = '\0';
*cmdend--;
}
cmd = linebuf_ptr;
/* Delete the seperator char and any leading space. */
*sep = '\0';
*sep++;
while (*sep == ' ' || *sep == '\t') {
*sep++;
}
value = sep;
/* Create the fully qualified variable name. */
if (currsection == NULL) {
strncpy(qualifbuf, cmd, sizeof(qualifbuf) - 1);
} else {
snprintf(qualifbuf, sizeof(qualifbuf) - 1, "%s.%s", currsection, cmd);
}
/* Call the parent and tell them we have data. */
save_lc_errno = lc_errno;
lc_errno = LC_ERR_NONE;
lcpvret = lc_process_var(qualifbuf, NULL, value, LC_FLAGS_VAR);
if (lcpvret < 0) {
if (lc_errno == LC_ERR_NONE) {
PRINTERR_D("Invalid command: \"%s\"", cmd);
lc_errno = LC_ERR_INVCMD;
} else {
PRINTERR_D("Error processing command (command was valid, but an error occured, errno was set)");
}
retval = -1;
} else {
lc_errno = save_lc_errno;
}
}
/* Close any open section, and clean-up. */
if (currsection != NULL) {
lcpvret = lc_process_var(currsection, NULL, NULL, LC_FLAGS_SECTIONEND);
if (lcpvret < 0) {
PRINTERR_D("Invalid section terminating: \"%s\"", currsection);
}
free(currsection);
}
fclose(configfp);
return(retval);
}