36 lines
767 B
Plaintext
36 lines
767 B
Plaintext
--- bpf.c.orig Mon Aug 18 23:38:20 1997
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+++ bpf.c Tue Apr 17 16:00:13 2001
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@@ -47,21 +47,26 @@ int bpf_open(char *device) {
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do {
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snprintf(file, PATH_MAX, "/dev/bpf%d", i++);
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- if((fd = open(file, O_RDWR)) < 0)
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- continue;
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- } while(errno == EBUSY && fd < 0);
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+ fd = open(file, O_RDWR);
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+ } while(fd < 0 && errno == EBUSY);
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- if(fd < 0)
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+ if(fd < 0) {
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+ perror("bpf open");
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return(-1);
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+ }
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memset(&ifr, 0, sizeof(ifr));
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strncpy(ifr.ifr_name, device, 15);
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- if(bpf_setbuf(fd, DEFAULT_BUFLEN) < 0)
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+ if(bpf_setbuf(fd, DEFAULT_BUFLEN) < 0) {
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+ perror("bpf setbuf");
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return(-2);
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+ }
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- if(ioctl(fd, BIOCSETIF, (char *) &ifr) < 0)
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+ if(ioctl(fd, BIOCSETIF, (char *) &ifr) < 0) {
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+ perror("bpf ioctl");
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return(-3);
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+ }
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return(fd);
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}
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