From 332947f2518b71342ebe3719899e83405a79c15d Mon Sep 17 00:00:00 2001
From: "graham.gower" <graham.gower@e8e0d7a0-c8d9-11dd-a880-a1081c7ac358>
Date: Thu, 12 Nov 2009 05:02:35 +0000
Subject: [PATCH] Cleanup version string handling.

git-svn-id: http://opkg.googlecode.com/svn/trunk@286 e8e0d7a0-c8d9-11dd-a880-a1081c7ac358
---
 libopkg/pkg.c       | 43 ++++++++++++----------------
 libopkg/pkg_parse.c | 70 ++++++++++++++++-----------------------------
 2 files changed, 44 insertions(+), 69 deletions(-)

diff --git a/libopkg/pkg.c b/libopkg/pkg.c
index b1f45dd..bb3da1e 100644
--- a/libopkg/pkg.c
+++ b/libopkg/pkg.c
@@ -945,32 +945,27 @@ int abstract_pkg_name_compare(const void *p1, const void *p2)
 }
 
 
-char *pkg_version_str_alloc(pkg_t *pkg)
+char *
+pkg_version_str_alloc(pkg_t *pkg)
 {
-     char *complete_version;
-     char *epoch_str;
-     char *revision_str;
-
-     if (pkg->epoch) {
-	  sprintf_alloc(&epoch_str, "%d:", pkg->epoch);
-     } else {
-	  epoch_str = xstrdup("");
-     }
-
-     if (pkg->revision && strlen(pkg->revision)) {
-	  sprintf_alloc(&revision_str, "-%s", pkg->revision);
-     } else {
-	  revision_str = xstrdup("");
-     }
-
-
-     sprintf_alloc(&complete_version, "%s%s%s",
-		   epoch_str, pkg->version, revision_str);
-
-     free(epoch_str);
-     free(revision_str);
+	char *version;
+
+	if (pkg->epoch) {
+		if (pkg->revision)
+			sprintf_alloc(&version, "%d:%s-%s",
+				pkg->epoch, pkg->version, pkg->revision);
+		else
+			sprintf_alloc(&version, "%d:%s",
+				pkg->epoch, pkg->version);
+	} else {
+		if (pkg->revision)
+			sprintf_alloc(&version, "%s-%s",
+				pkg->version, pkg->revision);
+		else
+			version = xstrdup(pkg->version);
+	}
 
-     return complete_version;
+	return version;
 }
 
 str_list_t *pkg_get_installed_files(pkg_t *pkg)
diff --git a/libopkg/pkg_parse.c b/libopkg/pkg_parse.c
index 44338f0..a8aa231 100644
--- a/libopkg/pkg_parse.c
+++ b/libopkg/pkg_parse.c
@@ -103,57 +103,37 @@ static void parseConffiles(pkg_t * pkg, const char * raw)
     }
 }    
 
-int parseVersion(pkg_t *pkg, const char *raw)
+int
+parseVersion(pkg_t *pkg, const char *vstr)
 {
-  char *colon, *eepochcolon;
-  char *hyphen;
-  unsigned long epoch;
-
-  if (!*raw) {
-      fprintf(stderr, "%s: ERROR: version string is empty", __FUNCTION__);
-      return EINVAL;
-  }
-
-  if (strncmp(raw, "Version:", 8) == 0) {
-      raw += 8;
-  }
-  while (*raw && isspace(*raw)) {
-      raw++;
-  }
-  
-  colon= strchr(raw,':');
-  if (colon) {
-    epoch= strtoul(raw,&eepochcolon,10);
-    if (colon != eepochcolon) {
-	fprintf(stderr, "%s: ERROR: epoch in version is not number", __FUNCTION__);
-	return EINVAL;
-    }
-    if (!*++colon) {
-	fprintf(stderr, "%s: ERROR: nothing after colon in version number", __FUNCTION__);
-	return EINVAL;
-    }
-    raw= colon;
-    pkg->epoch= epoch;
-  } else {
-    pkg->epoch= 0;
-  }
+	char *colon;
 
-  pkg->revision = "";
+	if (strncmp(vstr, "Version:", 8) == 0)
+		vstr += 8;
 
-  if (!pkg->version)
-  {
-    pkg->version= xcalloc(1, strlen(raw)+1);
-    strcpy(pkg->version, raw);
-  }
+	while (*vstr && isspace(*vstr))
+		vstr++;
 
-  hyphen= strrchr(pkg->version,'-');
+	colon = strchr(vstr, ':');
+	if (colon) {
+		errno = 0;
+		pkg->epoch = strtoul(vstr, NULL, 10);
+		if (errno) {
+			fprintf(stderr, "%s: %s: invalid epoch: %s\n",
+				__FUNCTION__, pkg->name, strerror(errno));
+		}
+		vstr = ++colon;
+	} else {
+		pkg->epoch= 0;
+	}
+
+	pkg->version= xstrdup(vstr);
+	pkg->revision = strrchr(pkg->version,'-');
 
-  if (hyphen) {
-    *hyphen++= 0;
-      pkg->revision = hyphen;
-  }
+	if (pkg->revision)
+		*pkg->revision++ = '\0';
 
-  return 0;
+	return 0;
 }
 
 static int
-- 
2.25.1