[libvirt] [PATCH v2 03/12] util: Add virStringTrimOptionalNewline

[Martin Kletzander]

And use it in virFileRead*

Signed-off-by: Martin Kletzander <mkletzan at redhat.com>
---
 src/util/virfile.c    | 18 +++++++-----------
 src/util/virhostcpu.c |  4 ++--
 src/util/virstring.h  |  8 ++++++++
 src/util/virsysfs.c   |  2 ++
 4 files changed, 19 insertions(+), 13 deletions(-)

diff --git a/src/util/virfile.c b/src/util/virfile.c
index c0f448d3437d..cbfa3849d793 100644
--- a/src/util/virfile.c
+++ b/src/util/virfile.c
@@ -3811,7 +3811,6 @@ int
 virFileReadValueInt(const char *path, int *value)
 {
     char *str = NULL;
-    char *endp = NULL;

     if (!virFileExists(path))
         return -2;
@@ -3819,8 +3818,9 @@ virFileReadValueInt(const char *path, int *value)
     if (virFileReadAll(path, INT_STRLEN_BOUND(*value), &str) < 0)
         return -1;

-    if (virStrToLong_i(str, &endp, 10, value) < 0 ||
-        (endp && !c_isspace(*endp))) {
+    virStringTrimOptionalNewline(str);
+
+    if (virStrToLong_i(str, NULL, 10, value) < 0) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("Invalid integer value '%s' in file '%s'"),
                        str, path);
@@ -3847,7 +3847,6 @@ int
 virFileReadValueUint(const char *path, unsigned int *value)
 {
     char *str = NULL;
-    char *endp = NULL;

     if (!virFileExists(path))
         return -2;
@@ -3855,8 +3854,9 @@ virFileReadValueUint(const char *path, unsigned int *value)
     if (virFileReadAll(path, INT_STRLEN_BOUND(*value), &str) < 0)
         return -1;

-    if (virStrToLong_uip(str, &endp, 10, value) < 0 ||
-        (endp && !c_isspace(*endp))) {
+    virStringTrimOptionalNewline(str);
+
+    if (virStrToLong_uip(str, NULL, 10, value)) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("Invalid unsigned integer value '%s' in file '%s'"),
                        str, path);
@@ -3886,7 +3886,6 @@ virFileReadValueBitmap(const char *path,
 {
     char *buf = NULL;
     int ret = -1;
-    char *tmp = NULL;

     if (!virFileExists(path))
         return -2;
@@ -3894,10 +3893,7 @@ virFileReadValueBitmap(const char *path,
     if (virFileReadAll(path, maxlen, &buf) < 0)
         goto cleanup;

-    /* trim optinoal newline at the end */
-    tmp = buf + strlen(buf) - 1;
-    if (*tmp == '\n')
-        *tmp = '\0';
+    virStringTrimOptionalNewline(buf);

     *value = virBitmapParseUnlimited(buf);
     if (!*value)
diff --git a/src/util/virhostcpu.c b/src/util/virhostcpu.c
index 02b9fc8eb94f..a660e3f4dbe5 100644
--- a/src/util/virhostcpu.c
+++ b/src/util/virhostcpu.c
@@ -847,13 +847,13 @@ virHostCPUParseCountLinux(void)
     tmp = str;
     do {
         if (virStrToLong_i(tmp, &tmp, 10, &ret) < 0 ||
-            !strchr(",-\n", *tmp)) {
+            !strchr(",-", *tmp)) {
             virReportError(VIR_ERR_NO_SUPPORT,
                            _("failed to parse %s"), str);
             ret = -1;
             goto cleanup;
         }
-    } while (*tmp++ != '\n');
+    } while (*tmp++ && *tmp);
     ret++;

  cleanup:
diff --git a/src/util/virstring.h b/src/util/virstring.h
index a5550e30d2e2..603650aa1588 100644
--- a/src/util/virstring.h
+++ b/src/util/virstring.h
@@ -288,4 +288,12 @@ bool virStringBufferIsPrintable(const uint8_t *buf, size_t buflen);

 char *virStringEncodeBase64(const uint8_t *buf, size_t buflen);

+static inline void
+virStringTrimOptionalNewline(char *str)
+{
+    char *tmp = str + strlen(str) - 1;
+    if (*tmp == '\n')
+        *tmp = '\0';
+}
+
 #endif /* __VIR_STRING_H__ */
diff --git a/src/util/virsysfs.c b/src/util/virsysfs.c
index 7a98b488e0ff..6df45a0e36d9 100644
--- a/src/util/virsysfs.c
+++ b/src/util/virsysfs.c
@@ -89,6 +89,8 @@ virSysfsGetValueString(const char *file,
     if (virFileReadAll(path, VIR_SYSFS_VALUE_MAXLEN, value) < 0)
         goto cleanup;

+    virStringTrimOptionalNewline(*value);
+
     ret = 0;
  cleanup:
     VIR_FREE(path);
-- 
2.12.2