tor_multipath_voip/src/cap_utils.c

30 lines
720 B
C

#include "cap_utils.h"
void cap_load(struct cap_file *cf, char* filename) {
if ((cf->fd = fopen(filename, "r")) == NULL) {
perror("Unable to open file");
exit(EXIT_FAILURE);
}
fseek(cf->fd, 0, SEEK_END);
cf->sz = ftell(cf->fd);
fseek(cf->fd, 0, SEEK_SET);
}
void cap_next_bp(struct cap_file *cf, struct buffer_packet* bp) {
fread(bp, sizeof(struct buffer_packet), 1, cf->fd);
}
void cap_peek_bp(struct cap_file *cf, struct buffer_packet* bp) {
size_t n = fread(bp, sizeof(struct buffer_packet), 1, cf->fd);
fseek(cf->fd, -n, SEEK_CUR);
}
size_t cap_count_bp(struct cap_file *cf) {
return cf->sz / sizeof(struct buffer_packet);
}
void cap_unload(struct cap_file *cf) {
fclose(cf->fd);
}