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