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Member "vnstat-2.9/src/iflist.c" (28 Jun 2019, 885 Bytes) of package /linux/misc/vnstat-2.9.tar.gz:

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    1 #include "common.h"
    2 #include "iflist.h"
    3 
    4 int iflistadd(iflist **ifl, const char *iface, const uint32_t bandwidth)
    5 {
    6     iflist *newif = NULL, *ifl_iterator = *ifl;
    7 
    8     newif = malloc(sizeof(iflist));
    9     if (newif == NULL) {
   10         return 0;
   11     }
   12 
   13     newif->next = NULL;
   14 
   15     if (*ifl != NULL) {
   16         while (ifl_iterator->next != NULL) {
   17             ifl_iterator = ifl_iterator->next;
   18         }
   19         ifl_iterator->next = newif;
   20     } else {
   21         *ifl = newif;
   22     }
   23 
   24     strncpy_nt(newif->interface, iface, 32);
   25     newif->bandwidth = bandwidth;
   26 
   27     return 1;
   28 }
   29 
   30 int iflistsearch(iflist **ifl, const char *iface)
   31 {
   32     iflist *ifl_iterator = *ifl;
   33 
   34     while (ifl_iterator != NULL) {
   35         if (strcmp(iface, ifl_iterator->interface) == 0) {
   36             return 1;
   37         }
   38         ifl_iterator = ifl_iterator->next;
   39     }
   40     return 0;
   41 }
   42 
   43 void iflistfree(iflist **ifl)
   44 {
   45     iflist *ifl_prev;
   46 
   47     while (*ifl != NULL) {
   48         ifl_prev = *ifl;
   49         *ifl = (*ifl)->next;
   50         free(ifl_prev);
   51     }
   52 }