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openwrt/package/system/opkg/patches/020-avoid_getline.patch

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--- a/libopkg/parse_util.c
+++ b/libopkg/parse_util.c
@@ -22,6 +22,7 @@
#include "libbb/libbb.h"
#include "parse_util.h"
+#include "pkg_parse.h"
int
is_field(const char *type, const char *line)
@@ -86,3 +87,84 @@ parse_list(const char *raw, unsigned int
*count = line_count;
return depends;
}
+
+int
+parse_from_stream_nomalloc(parse_line_t parse_line, void *item, FILE *fp, uint mask,
+ char **buf0, size_t buf0len)
+{
+ int ret, lineno;
+ char *buf, *nl;
+ size_t buflen;
+
+ lineno = 1;
+ ret = 0;
+
+ buflen = buf0len;
+ buf = *buf0;
+ buf[0] = '\0';
+
+ while (1) {
+ if (fgets(buf, (int)buflen, fp) == NULL) {
+ if (ferror(fp)) {
+ opkg_perror(ERROR, "fgets");
+ ret = -1;
+ } else if (strlen(*buf0) == buf0len-1) {
+ opkg_msg(ERROR, "Missing new line character"
+ " at end of file!\n");
+ parse_line(item, *buf0, mask);
+ }
+ break;
+ }
+
+ nl = strchr(buf, '\n');
+ if (nl == NULL) {
+ if (strlen(buf) < buflen-1) {
+ /*
+ * Line could be exactly buflen-1 long and
+ * missing a newline, but we won't know until
+ * fgets fails to read more data.
+ */
+ opkg_msg(ERROR, "Missing new line character"
+ " at end of file!\n");
+ parse_line(item, *buf0, mask);
+ break;
+ }
+ if (buf0len >= EXCESSIVE_LINE_LEN) {
+ opkg_msg(ERROR, "Excessively long line at "
+ "%d. Corrupt file?\n",
+ lineno);
+ ret = -1;
+ break;
+ }
+
+ /*
+ * Realloc and point buf past the data already read,
+ * at the NULL terminator inserted by fgets.
+ * |<--------------- buf0len ----------------->|
+ * | |<------- buflen ---->|
+ * |---------------------|---------------------|
+ * buf0 buf
+ */
+ buflen = buf0len +1;
+ buf0len *= 2;
+ *buf0 = xrealloc(*buf0, buf0len);
+ buf = *buf0 + buflen -2;
+
+ continue;
+ }
+
+ *nl = '\0';
+
+ lineno++;
+
+ if (parse_line(item, *buf0, mask))
+ break;
+
+ buf = *buf0;
+ buflen = buf0len;
+ buf[0] = '\0';
+ }
+
+ return ret;
+}
+
--- a/libopkg/parse_util.h
+++ b/libopkg/parse_util.h
@@ -22,4 +22,8 @@ int is_field(const char *type, const cha
char *parse_simple(const char *type, const char *line);
char **parse_list(const char *raw, unsigned int *count, const char sep, int skip_field);
+typedef int (*parse_line_t)(void *, const char *, uint);
+int parse_from_stream_nomalloc(parse_line_t parse_line, void *item, FILE *fp, uint mask,
+ char **buf0, size_t buf0len);
+
#endif
--- a/libopkg/pkg_hash.c
+++ b/libopkg/pkg_hash.c
@@ -23,6 +23,7 @@
#include "opkg_message.h"
#include "pkg_vec.h"
#include "pkg_hash.h"
+#include "parse_util.h"
#include "pkg_parse.h"
#include "opkg_utils.h"
#include "sprintf_alloc.h"
@@ -119,8 +120,14 @@ pkg_hash_add_from_file(const char *file_
pkg->src = src;
pkg->dest = dest;
- ret = pkg_parse_from_stream_nomalloc(pkg, fp, 0,
+ ret = parse_from_stream_nomalloc(pkg_parse_line, pkg, fp, 0,
&buf, len);
+
+ if (pkg->name == NULL) {
+ /* probably just a blank line */
+ ret = 1;
+ }
+
if (ret) {
pkg_deinit (pkg);
free(pkg);
--- a/libopkg/pkg_parse.c
+++ b/libopkg/pkg_parse.c
@@ -104,9 +104,11 @@ get_arch_priority(const char *arch)
return 0;
}
-static int
-pkg_parse_line(pkg_t *pkg, const char *line, uint mask)
+int
+pkg_parse_line(void *ptr, const char *line, uint mask)
{
+ pkg_t *pkg = (pkg_t *) ptr;
+
/* these flags are a bit hackish... */
static int reading_conffiles = 0, reading_description = 0;
int ret = 0;
@@ -266,91 +268,6 @@ dont_reset_flags:
}
int
-pkg_parse_from_stream_nomalloc(pkg_t *pkg, FILE *fp, uint mask,
- char **buf0, size_t buf0len)
-{
- int ret, lineno;
- char *buf, *nl;
- size_t buflen;
-
- lineno = 1;
- ret = 0;
-
- buflen = buf0len;
- buf = *buf0;
- buf[0] = '\0';
-
- while (1) {
- if (fgets(buf, (int)buflen, fp) == NULL) {
- if (ferror(fp)) {
- opkg_perror(ERROR, "fgets");
- ret = -1;
- } else if (strlen(*buf0) == buf0len-1) {
- opkg_msg(ERROR, "Missing new line character"
- " at end of file!\n");
- pkg_parse_line(pkg, *buf0, mask);
- }
- break;
- }
-
- nl = strchr(buf, '\n');
- if (nl == NULL) {
- if (strlen(buf) < buflen-1) {
- /*
- * Line could be exactly buflen-1 long and
- * missing a newline, but we won't know until
- * fgets fails to read more data.
- */
- opkg_msg(ERROR, "Missing new line character"
- " at end of file!\n");
- pkg_parse_line(pkg, *buf0, mask);
- break;
- }
- if (buf0len >= EXCESSIVE_LINE_LEN) {
- opkg_msg(ERROR, "Excessively long line at "
- "%d. Corrupt file?\n",
- lineno);
- ret = -1;
- break;
- }
-
- /*
- * Realloc and point buf past the data already read,
- * at the NULL terminator inserted by fgets.
- * |<--------------- buf0len ----------------->|
- * | |<------- buflen ---->|
- * |---------------------|---------------------|
- * buf0 buf
- */
- buflen = buf0len +1;
- buf0len *= 2;
- *buf0 = xrealloc(*buf0, buf0len);
- buf = *buf0 + buflen -2;
-
- continue;
- }
-
- *nl = '\0';
-
- lineno++;
-
- if (pkg_parse_line(pkg, *buf0, mask))
- break;
-
- buf = *buf0;
- buflen = buf0len;
- buf[0] = '\0';
- }
-
- if (pkg->name == NULL) {
- /* probably just a blank line */
- ret = 1;
- }
-
- return ret;
-}
-
-int
pkg_parse_from_stream(pkg_t *pkg, FILE *fp, uint mask)
{
int ret;
@@ -358,8 +275,13 @@ pkg_parse_from_stream(pkg_t *pkg, FILE *
const size_t len = 4096;
buf = xmalloc(len);
- ret = pkg_parse_from_stream_nomalloc(pkg, fp, mask, &buf, len);
+ ret = parse_from_stream_nomalloc(pkg_parse_line, pkg, fp, mask, &buf, len);
free(buf);
+ if (pkg->name == NULL) {
+ /* probably just a blank line */
+ ret = 1;
+ }
+
return ret;
}
--- a/libopkg/pkg_parse.h
+++ b/libopkg/pkg_parse.h
@@ -18,10 +18,11 @@
#ifndef PKG_PARSE_H
#define PKG_PARSE_H
+#include "pkg.h"
+
int parse_version(pkg_t *pkg, const char *raw);
int pkg_parse_from_stream(pkg_t *pkg, FILE *fp, uint mask);
-int pkg_parse_from_stream_nomalloc(pkg_t *pkg, FILE *fp, uint mask,
- char **buf0, size_t buf0len);
+int pkg_parse_line(void *ptr, const char *line, uint mask);
#define EXCESSIVE_LINE_LEN (4096 << 8)
--- a/libopkg/release_parse.c
+++ b/libopkg/release_parse.c
@@ -23,8 +23,10 @@
#include "parse_util.h"
static int
-release_parse_line(release_t *release, const char *line)
+release_parse_line(void *ptr, const char *line, uint mask)
{
+ release_t *release = (release_t *) ptr;
+
int ret = 0;
unsigned int count = 0;
char **list = 0;
@@ -111,25 +113,14 @@ dont_reset_flags:
int
release_parse_from_stream(release_t *release, FILE *fp)
{
- int ret = 0;
- char *buf = NULL;
- size_t buflen, nread;
-
- nread = getline(&buf, &buflen, fp);
- while ( nread != -1 ) {
- if (buf[nread-1] == '\n') buf[nread-1] = '\0';
- if (release_parse_line(release, buf))
- opkg_msg(DEBUG, "Failed to parse release line for %s:\n\t%s\n",
- release->name, buf);
- nread = getline(&buf, &buflen, fp);
- }
-
- if (!feof(fp)) {
- opkg_perror(ERROR, "Problems reading Release file for %sd\n", release->name);
- ret = -1;
- }
+ int ret;
+ char *buf;
+ const size_t len = 4096;
+ buf = xmalloc(len);
+ ret = parse_from_stream_nomalloc(release_parse_line, release, fp, 0, &buf, len);
free(buf);
+
return ret;
}
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