86 lines
2.2 KiB
Diff
86 lines
2.2 KiB
Diff
From 3e27ced0c24be18dc443f7eb1421c7c3c1755cfe Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Tom=C3=A1=C5=A1=20Chv=C3=A1tal?= <tchvatal@suse.com>
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Date: Sun, 18 Jun 2017 08:54:17 +0200
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Subject: [PATCH 6/7] Allow interface stacking
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---
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lib/interface.c | 25 +++++++++++++++----------
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1 file changed, 15 insertions(+), 10 deletions(-)
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diff --git a/lib/interface.c b/lib/interface.c
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index 7e326a0..42d86fb 100644
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--- a/lib/interface.c
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+++ b/lib/interface.c
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@@ -208,10 +208,11 @@ out:
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return err;
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}
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-static const char *get_name(char *name, const char *p)
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+static const char *get_name(char **namep, const char *p)
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{
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while (isspace(*p))
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p++;
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+ char *name = *namep = p;
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while (*p) {
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if (isspace(*p))
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break;
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@@ -314,9 +315,10 @@ static int get_dev_fields(const char *bp, struct interface *ife)
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static int if_readlist_proc(const char *target)
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{
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FILE *fh;
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- char buf[512];
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struct interface *ife;
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int err;
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+ char *line = NULL;
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+ size_t linelen = 0;
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fh = fopen(_PATH_PROCNET_DEV, "r");
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if (!fh) {
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@@ -324,10 +326,11 @@ static int if_readlist_proc(const char *target)
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_PATH_PROCNET_DEV, strerror(errno));
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return -2;
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}
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- if (fgets(buf, sizeof buf, fh))
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- /* eat line */;
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- if (fgets(buf, sizeof buf, fh))
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- /* eat line */;
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+ if (getline(&line, &linelen, fh) == -1 /* eat line */
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+ || getline(&line, &linelen, fh) == -1) {
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+ err = -1;
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+ goto out;
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+ }
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#if 0 /* pretty, but can't cope with missing fields */
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fmt = proc_gen_fmt(_PATH_PROCNET_DEV, 1, fh,
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@@ -352,14 +355,14 @@ static int if_readlist_proc(const char *target)
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if (!fmt)
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return -1;
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#else
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- procnetdev_vsn = procnetdev_version(buf);
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+ procnetdev_vsn = procnetdev_version(line);
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#endif
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err = 0;
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- while (fgets(buf, sizeof buf, fh)) {
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+ while (getline(&line, &linelen, fh) != -1) {
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const char *s;
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- char name[IFNAMSIZ];
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- s = get_name(name, buf);
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+ char *name;
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+ s = get_name(&name, line);
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ife = if_cache_add(name);
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get_dev_fields(s, ife);
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ife->statistics_valid = 1;
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@@ -374,6 +377,8 @@ static int if_readlist_proc(const char *target)
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#if 0
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free(fmt);
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#endif
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+ out:
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+ free(line);
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fclose(fh);
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return err;
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}
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--
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2.13.1
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