372 lines
10 KiB
C
372 lines
10 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <limits.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
#include <dirent.h>
|
|
#include <inttypes.h>
|
|
#include <ctype.h>
|
|
#include <arpa/inet.h>
|
|
|
|
#include "libuuid/uuid.h"
|
|
|
|
char *baseindir = NULL;
|
|
char *baseoutdir = NULL;
|
|
|
|
char *config_file;
|
|
|
|
int imhub = 0;
|
|
|
|
struct msgarea_t {
|
|
int id;
|
|
int hub;
|
|
char *basedir;
|
|
int *links;
|
|
int link_count;
|
|
};
|
|
|
|
struct msg_t {
|
|
uint32_t area;
|
|
char from[32];
|
|
char to[32];
|
|
char subject[64];
|
|
uint32_t timedate;
|
|
uint32_t oaddr;
|
|
uint32_t daddr;
|
|
uint32_t type;
|
|
char reply[36];
|
|
} __attribute__ ((packed));
|
|
|
|
struct msgarea_t **areas;
|
|
int area_count;
|
|
int mynode = 0;
|
|
int hubnode = 0;
|
|
|
|
void msg_to_nl(struct msg_t *msg) {
|
|
msg->area = htonl(msg->area);
|
|
msg->timedate = htonl(msg->timedate);
|
|
msg->oaddr = htonl(msg->oaddr);
|
|
msg->daddr = htonl(msg->daddr);
|
|
msg->type = htonl(msg->type);
|
|
}
|
|
|
|
int copy_file(char *src, char *dest) {
|
|
FILE *src_file;
|
|
FILE *dest_file;
|
|
|
|
char c;
|
|
|
|
src_file = fopen(src, "rb");
|
|
if (!src_file) {
|
|
return -1;
|
|
}
|
|
dest_file = fopen(dest, "wb");
|
|
if (!dest_file) {
|
|
fclose(src_file);
|
|
return -1;
|
|
}
|
|
|
|
while(1) {
|
|
c = fgetc(src_file);
|
|
if (!feof(src_file)) {
|
|
fputc(c, dest_file);
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
fclose(src_file);
|
|
fclose(dest_file);
|
|
return 0;
|
|
}
|
|
|
|
size_t trimwhitespace(char *out, size_t len, const char *str) {
|
|
if(len == 0)
|
|
return 0;
|
|
|
|
const char *end;
|
|
size_t out_size;
|
|
|
|
// Trim leading space
|
|
while(isspace((unsigned char)*str)) str++;
|
|
|
|
if(*str == 0) {
|
|
*out = 0;
|
|
return 1;
|
|
}
|
|
|
|
// Trim trailing space
|
|
end = str + strlen(str) - 1;
|
|
while(end > str && isspace((unsigned char)*end)) end--;
|
|
end++;
|
|
|
|
// Set output size to minimum of trimmed string length and buffer size minus 1
|
|
out_size = (end - str) < len-1 ? (end - str) : len-1;
|
|
|
|
// Copy trimmed string and add null terminator
|
|
memcpy(out, str, out_size);
|
|
out[out_size] = 0;
|
|
|
|
return out_size;
|
|
}
|
|
|
|
int parse_config_file(char *filename) {
|
|
FILE *fptr;
|
|
char buffer[256];
|
|
char bufferw[256];
|
|
char *ptr;
|
|
struct msgarea_t *newarea;
|
|
|
|
|
|
area_count = 0;
|
|
|
|
fptr = fopen(filename, "r");
|
|
if (!fptr) {
|
|
return 0;
|
|
}
|
|
|
|
fgets(buffer, 256, fptr);
|
|
while (!feof(fptr)) {
|
|
if (buffer[0] != ';') {
|
|
if (buffer[strlen(buffer) - 1] == '\n'){
|
|
buffer[strlen(buffer) - 1] = '\0';
|
|
if (strncasecmp(buffer, "IMHUB", 5) == 0) {
|
|
trimwhitespace(bufferw, 256, &buffer[6]);
|
|
if (strcasecmp(bufferw, "TRUE") == 0) {
|
|
imhub = 1;
|
|
}
|
|
} else if (strncasecmp(buffer, "UPLINK", 6) == 0) {
|
|
trimwhitespace(bufferw, 256, &buffer[7]);
|
|
hubnode = atoi(bufferw);
|
|
} else if (strncasecmp(buffer, "INDIR", 5) == 0) {
|
|
trimwhitespace(bufferw, 256, &buffer[6]);
|
|
baseindir = strdup(bufferw);
|
|
} else if (strncasecmp(buffer, "OUTDIR", 6) == 0) {
|
|
trimwhitespace(bufferw, 256, &buffer[7]);
|
|
baseoutdir = strdup(bufferw);
|
|
} else if (strncasecmp(buffer, "MYNODE", 6) == 0) {
|
|
trimwhitespace(bufferw, 256, &buffer[7]);
|
|
mynode = atoi(bufferw);
|
|
} else if (strncasecmp(buffer, "MSGAREA", 7) == 0) {
|
|
newarea = NULL;
|
|
ptr = strtok(&buffer[8], ",");
|
|
|
|
if (ptr != NULL) {
|
|
newarea = (struct msgarea_t *)malloc(sizeof(struct msgarea_t));
|
|
trimwhitespace(bufferw, 256, ptr);
|
|
newarea->id = atoi(bufferw);
|
|
newarea->link_count = 0;
|
|
ptr = strtok(NULL, ",");
|
|
|
|
if (ptr != NULL) {
|
|
trimwhitespace(bufferw, 256, ptr);
|
|
newarea->hub = atoi(bufferw);
|
|
ptr = strtok(NULL, ",");
|
|
if (ptr != NULL) {
|
|
|
|
trimwhitespace(bufferw, 256, ptr);
|
|
newarea->basedir = strdup(bufferw);
|
|
ptr = strtok(NULL, ",");
|
|
while (ptr != NULL) {
|
|
trimwhitespace(bufferw, 256, ptr);
|
|
if (newarea->link_count == 0) {
|
|
newarea->links = (int *)malloc(sizeof(int));
|
|
} else {
|
|
newarea->links = (int *)realloc(newarea->links, sizeof(int) * (newarea->link_count + 1));
|
|
}
|
|
newarea->links[newarea->link_count] = atoi(bufferw);
|
|
newarea->link_count++;
|
|
ptr = strtok(NULL, ",");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (newarea != NULL) {
|
|
if (area_count == 0) {
|
|
areas = (struct msgarea_t **)malloc(sizeof(struct msgarea_t *));
|
|
} else {
|
|
areas = (struct msgarea_t **)realloc(areas, sizeof(struct msgarea_t *) * (area_count + 1));
|
|
}
|
|
areas[area_count] = newarea;
|
|
area_count++;
|
|
}
|
|
}
|
|
} else {
|
|
fclose(fptr);
|
|
return 0;
|
|
}
|
|
}
|
|
fgets(buffer, 256, fptr);
|
|
}
|
|
|
|
fclose(fptr);
|
|
return 1;
|
|
}
|
|
|
|
|
|
|
|
void remove_config_file_area(int areaid) {
|
|
char backup[PATH_MAX];
|
|
char buffer[256];
|
|
char bufferc[256];
|
|
char bufferw[256];
|
|
FILE *fptr1;
|
|
FILE *fptr2;
|
|
char *ptr;
|
|
int id;
|
|
int i;
|
|
|
|
snprintf(backup, PATH_MAX, "%s.bak", config_file);
|
|
fptr1 = fopen(config_file, "r");
|
|
fptr2 = fopen(backup, "w");
|
|
|
|
fgets(buffer, 256, fptr1);
|
|
while (!feof(fptr1)) {
|
|
if (strncasecmp(buffer, "MSGAREA", 7) == 0) {
|
|
strcpy(bufferc, buffer);
|
|
ptr = strtok(&bufferc[8], ",");
|
|
if (ptr != NULL) {
|
|
trimwhitespace(bufferw, 256, ptr);
|
|
id = atoi(bufferw);
|
|
if (id != areaid) {
|
|
fputs(buffer, fptr2);
|
|
}
|
|
}
|
|
} else {
|
|
fputs(buffer, fptr2);
|
|
}
|
|
fgets(buffer, 256, fptr1);
|
|
}
|
|
fclose(fptr1);
|
|
fclose(fptr2);
|
|
unlink(config_file);
|
|
rename(backup, config_file);
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
char buffer[PATH_MAX];
|
|
struct msg_t msg;
|
|
uuid_t myuuid;
|
|
char msgid[37];
|
|
FILE *fptr, *fptr2;
|
|
struct stat st;
|
|
|
|
if (argc != 6) {
|
|
fprintf(stderr, "Usage ./mnetsubunsub [Configfile] [ADD/REMOVE] [AREA#] [HOST#] [JamBase]");
|
|
return -1;
|
|
}
|
|
|
|
if (!parse_config_file(argv[1])) {
|
|
fprintf(stderr, "Error parsing config file: %s\n", argv[1]);
|
|
return -1;
|
|
}
|
|
|
|
if (baseoutdir == NULL) {
|
|
fprintf(stderr, "OUTDIR must be defined\n");
|
|
return -1;
|
|
}
|
|
config_file = argv[1];
|
|
|
|
if (strcasecmp(argv[2], "ADD") == 0) {
|
|
// send add control message
|
|
memset(&msg, 0, sizeof(struct msg_t));
|
|
msg.area = atoi(argv[3]);
|
|
sprintf(msg.from, "SYSTEM");
|
|
sprintf(msg.to, "SYSTEM");
|
|
sprintf(msg.subject, "ADD Message");
|
|
msg.timedate = time(NULL);
|
|
msg.oaddr = mynode;
|
|
msg.daddr = atoi(argv[4]);
|
|
msg.type = 1;
|
|
if (imhub) {
|
|
snprintf(buffer, PATH_MAX, "%s/%d/", baseoutdir, msg.daddr);
|
|
} else {
|
|
snprintf(buffer, PATH_MAX, "%s/%d/", baseoutdir, hubnode);
|
|
}
|
|
if (stat(buffer, &st) != 0) {
|
|
if (mkdir(buffer, 0755) != 0) {
|
|
fprintf(stderr, "Error making directory %s\n", buffer);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
memset(msgid, 0, 37);
|
|
uuid_generate(myuuid);
|
|
uuid_unparse_lower(myuuid, msgid);
|
|
|
|
if (imhub) {
|
|
snprintf(buffer, PATH_MAX, "%s/%d/%d-%s.message", baseoutdir, msg.daddr, msg.daddr, msgid);
|
|
} else {
|
|
snprintf(buffer, PATH_MAX, "%s/%d/%d-%s.message", baseoutdir, hubnode, msg.daddr, msgid);
|
|
}
|
|
fptr = fopen(buffer, "wb");
|
|
if (fptr == NULL) {
|
|
fprintf(stderr, "Error creating file %s\n", buffer);
|
|
return -1;
|
|
}
|
|
|
|
// add config line
|
|
fptr2 = fopen(argv[1], "a");
|
|
fprintf(fptr2, "MSGAREA %d, %d, %s\n", msg.area, msg.daddr, argv[5]);
|
|
fclose(fptr2);
|
|
|
|
msg_to_nl(&msg);
|
|
|
|
fwrite(&msg, sizeof(struct msg_t), 1, fptr);
|
|
fwrite("ADD\r", 4, 1, fptr);
|
|
fclose(fptr);
|
|
|
|
|
|
|
|
} else if (strcasecmp(argv[2], "REMOVE") == 0) {
|
|
// send remove control message
|
|
memset(&msg, 0, sizeof(struct msg_t));
|
|
msg.area = atoi(argv[3]);
|
|
sprintf(msg.from, "SYSTEM");
|
|
sprintf(msg.to, "SYSTEM");
|
|
sprintf(msg.subject, "REMOVE Message");
|
|
msg.timedate = time(NULL);
|
|
msg.oaddr = mynode;
|
|
msg.daddr = atoi(argv[4]);
|
|
msg.type = 1;
|
|
if (imhub) {
|
|
snprintf(buffer, PATH_MAX, "%s/%d/", baseoutdir, msg.daddr);
|
|
} else {
|
|
snprintf(buffer, PATH_MAX, "%s/%d/", baseoutdir, hubnode);
|
|
}
|
|
if (stat(buffer, &st) != 0) {
|
|
if (mkdir(buffer, 0755) != 0) {
|
|
fprintf(stderr, "Error making directory %s\n", buffer);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
memset(msgid, 0, 37);
|
|
uuid_generate(myuuid);
|
|
uuid_unparse_lower(myuuid, msgid);
|
|
|
|
if (imhub) {
|
|
snprintf(buffer, PATH_MAX, "%s/%d/%d-%s.message", baseoutdir, msg.daddr, msg.daddr, msgid);
|
|
} else {
|
|
snprintf(buffer, PATH_MAX, "%s/%d/%d-%s.message", baseoutdir, hubnode, msg.daddr, msgid);
|
|
}
|
|
fptr = fopen(buffer, "wb");
|
|
if (fptr == NULL) {
|
|
fprintf(stderr, "Error creating file %s\n", buffer);
|
|
return -1;
|
|
}
|
|
|
|
// remove config line
|
|
remove_config_file_area(msg.area);
|
|
|
|
msg_to_nl(&msg);
|
|
|
|
fwrite(&msg, sizeof(struct msg_t), 1, fptr);
|
|
fwrite("REMOVE\r", 7, 1, fptr);
|
|
fclose(fptr);
|
|
|
|
|
|
}
|
|
return 0;
|
|
} |