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openSUSE:Leap:42.1:Staging:C
net-tools
net-tools-1.60-cont-buff.patch
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File net-tools-1.60-cont-buff.patch of Package net-tools
# net-tools-1.60-cont-buff.patch # This Patch fixes the -ic option from netstat # without destroying the proc_read buffer function # if any questions occur contact my at fdg@suse.de Index: net-tools-1.60/ifconfig.c =================================================================== --- net-tools-1.60.orig/ifconfig.c +++ net-tools-1.60/ifconfig.c @@ -108,7 +108,7 @@ static int if_print(char *ifname) printf(_("Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg\n")); if (!ifname) { - res = for_all_interfaces(do_if_print, &opt_a); + res = for_all_interfaces(do_if_print, &opt_a, 0); } else { struct interface *ife; @@ -1081,7 +1081,7 @@ static int set_ifstate(char *parent, uns pt.flag = flag; memset(searcher, 0, sizeof(searcher)); i = for_all_interfaces((int (*)(struct interface *,void *))do_ifcmd, - &pt); + &pt, 0); if (i == -1) return -1; if (i == 1) Index: net-tools-1.60/include/interface.h =================================================================== --- net-tools-1.60.orig/include/interface.h +++ net-tools-1.60/include/interface.h @@ -63,10 +63,10 @@ struct interface { extern int if_fetch(struct interface *ife); -extern int for_all_interfaces(int (*)(struct interface *, void *), void *); +extern int for_all_interfaces(int (*)(struct interface *, void *), void *, int); extern int free_interface_list(void); extern struct interface *lookup_interface(char *name); -extern int if_readlist(void); +extern int if_readlist(int); extern int do_if_fetch(struct interface *ife); extern int do_if_print(struct interface *ife, void *cookie); @@ -76,6 +76,8 @@ extern void ife_print(struct interface * extern int ife_short; extern const char *if_port_text[][4]; +extern int get_iface_count(void); +char *get_iface_name(int index); /* Defines for poor glibc2.0 users, the feature check is done at runtime */ #if !defined(SIOCSIFTXQLEN) Index: net-tools-1.60/lib/interface.c =================================================================== --- net-tools-1.60.orig/lib/interface.c +++ net-tools-1.60/lib/interface.c @@ -90,7 +90,7 @@ int ife_field = 5; static struct interface *int_list, *int_last; -static int if_readlist_proc(char *); +static int if_readlist_proc(char *, int); static struct interface *add_interface(char *name) { @@ -120,17 +120,17 @@ struct interface *lookup_interface(char { struct interface *ife = NULL; - if (if_readlist_proc(name) < 0) + if (if_readlist_proc(name, 0) < 0) return NULL; ife = add_interface(name); return ife; } -int for_all_interfaces(int (*doit) (struct interface *, void *), void *cookie) +int for_all_interfaces(int (*doit) (struct interface *, void *), void *cookie, int flag_cacheof) { struct interface *ife; - if (!int_list && (if_readlist() < 0)) + if (!int_list && (if_readlist(flag_cacheof) < 0)) return -1; for (ife = int_list; ife; ife = ife->next) { int err = doit(ife, cookie); @@ -162,6 +162,7 @@ int free_interface_list(void) while ((ife = int_list) != NULL) { int_list = ife->next; free(ife); + int_last = NULL; } return 0; } @@ -315,7 +316,7 @@ static int get_dev_fields(char *bp, stru return 0; } -static int if_readlist_proc(char *target) +static int if_readlist_proc(char *target, int flag_cacheof) { static int proc_read; FILE *fh; @@ -323,10 +324,12 @@ static int if_readlist_proc(char *target struct interface *ife; int err; - if (proc_read) - return 0; - if (!target) - proc_read = 1; + if (proc_read) { + return 0; + } + if ((!target) && (flag_cacheof == 0)) { + proc_read = 1; + } fh = fopen(_PATH_PROCNET_DEV, "r"); if (!fh) { @@ -386,9 +389,9 @@ static int if_readlist_proc(char *target return err; } -int if_readlist(void) +int if_readlist(int flag_cacheof) { - int err = if_readlist_proc(NULL); + int err = if_readlist_proc(NULL, flag_cacheof); if (!err) err = if_readconf(); return err; @@ -910,3 +913,26 @@ void ife_print(struct interface *i) else ife_print_long(i); } + +int get_iface_count(void) +{ + int num_iface = 0; + struct interface* ife = int_list; + + for (; ife != NULL; ife=ife->next) { + num_iface++; + } + + return num_iface; +} + +char* get_iface_name(int index) { + struct interface* ife = int_list; + + while ((index-- > 0) && (ife->next != NULL)) { + ife = ife->next; + } + + return ife->name; +} + Index: net-tools-1.60/netstat.c =================================================================== --- net-tools-1.60.orig/netstat.c +++ net-tools-1.60/netstat.c @@ -153,9 +153,24 @@ int flag_exp = 1; int flag_prg = 0; int flag_arg = 0; int flag_ver = 0; +int flag_cacheof = 0; FILE *procinfo; +struct iface_cache { + char iface_name[16+1]; + int rxok; + int rxerr; + int rxdrp; + int rxovr; + int txok; + int txerr; + int txdrp; + int txovr; +}; + +static struct iface_cache* mycache; + #define INFO_GUTS1(file,name,proc) \ procinfo = fopen((file), "r"); \ if (procinfo == NULL) { \ @@ -253,6 +268,77 @@ static char prg_cache_loaded = 0; /* NOT working as of glibc-2.0.7: */ #undef DIRENT_HAVE_D_TYPE_WORKS +int do_if_cache_print(struct interface *ife, void *cookie) +{ + int *opt_a = (int *) cookie; + int res; + int num_iface = get_iface_count(); + int i; + + struct iface_cache* cur_iface_cache = NULL; + + res = do_if_fetch(ife); + + if (mycache == NULL) { + mycache = malloc(num_iface * sizeof(struct iface_cache)); + if (mycache == NULL) { exit(-1); } + memset(mycache, '\0', num_iface * sizeof(struct iface_cache)); + for (i=0; i < num_iface; i++) { + strncpy(mycache[i].iface_name, get_iface_name(i), 16); + } + } + + for (i=0; i < num_iface; i++) { + if (strcmp(ife->name, mycache[i].iface_name) == 0) { + cur_iface_cache = &mycache[i]; + break; + } + } + + if (cur_iface_cache != NULL) { + int swap; + + swap = ife->stats.rx_packets; + ife->stats.rx_packets -= cur_iface_cache->rxok; + cur_iface_cache->rxok = swap; + + swap = ife->stats.rx_errors; + ife->stats.rx_errors -= cur_iface_cache->rxerr; + cur_iface_cache->rxerr = swap; + + swap = ife->stats.rx_dropped; + ife->stats.rx_dropped -= cur_iface_cache->rxdrp; + cur_iface_cache->rxdrp = swap; + + swap = ife->stats.rx_fifo_errors; + ife->stats.rx_fifo_errors -= cur_iface_cache->rxovr; + cur_iface_cache->rxovr = swap; + + swap = ife->stats.tx_packets; + ife->stats.tx_packets -= cur_iface_cache->txok; + cur_iface_cache->txok = swap; + + swap = ife->stats.tx_errors; + ife->stats.tx_errors -= cur_iface_cache->txerr; + cur_iface_cache->txerr = swap; + + swap = ife->stats.tx_dropped; + ife->stats.tx_dropped -= cur_iface_cache->txdrp; + cur_iface_cache->txdrp = swap; + + swap = ife->stats.tx_fifo_errors; + ife->stats.tx_fifo_errors -= cur_iface_cache->txovr; + cur_iface_cache->txovr = swap; + } + + if (res >= 0) { + if ((ife->flags & IFF_UP) || *opt_a) { + ife_print(ife); + } + } + return res; +} + static void prg_cache_add(int inode, char *name) { unsigned hi = PRG_HASHIT(inode); @@ -1458,10 +1544,20 @@ static int iface_info(void) get_max_ifacename(); - if (for_all_interfaces(do_if_print, &flag_all) < 0) { - perror(_("missing interface information")); - exit(1); + if (flag_cacheof == 1) { + if (for_all_interfaces(do_if_cache_print, &flag_all, flag_cacheof) < 0) { + perror(_("missing interface information")); + exit(1); + } + } + else { + if (for_all_interfaces(do_if_print, &flag_all, flag_cacheof) < 0) { + perror(_("missing interface information")); + exit(1); + } } + + if (flag_cnt) free_interface_list(); else { @@ -1588,6 +1684,7 @@ int main flag_lst++; break; case 'c': + flag_cacheof = 1; flag_cnt++; break;
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