109 lines
2.4 KiB
Diff
109 lines
2.4 KiB
Diff
for systems that don't support latest POSIX standard: %as
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https://bugs.gentoo.org/406303
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--- a/configure.ac
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+++ b/configure.ac
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@@ -688,7 +688,6 @@ AC_ARG_ENABLE([libmount],
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UL_BUILD_INIT([libmount])
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UL_REQUIRES_LINUX([libmount])
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UL_REQUIRES_BUILD([libmount], [libblkid])
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-UL_REQUIRES_HAVE([libmount], [scanf_alloc_modifier], [scanf string alloc modifier])
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AM_CONDITIONAL(BUILD_LIBMOUNT, test "x$build_libmount" = xyes)
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AC_SUBST([LIBMOUNT_VERSION])
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--- a/libmount/src/tab_parse.c
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+++ b/libmount/src/tab_parse.c
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@@ -22,6 +22,10 @@
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#include "pathnames.h"
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#include "strutils.h"
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+#ifndef HAVE_SCANF_MS_MODIFIER
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+# define UL_SCNsA "%s"
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+#endif
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+
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static inline char *skip_spaces(char *s)
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{
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assert(s);
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@@ -61,16 +65,31 @@ static int mnt_parse_table_line(struct l
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int rc, n = 0, xrc;
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char *src = NULL, *fstype = NULL, *optstr = NULL;
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+#ifndef HAVE_SCANF_MS_MODIFIER
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+ size_t len = strlen(s) + 1;
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+ src = malloc(len);
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+ fstype = malloc(len);
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+ fs->target = malloc(len);
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+ optstr = malloc(len);
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+#endif
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+
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rc = sscanf(s, UL_SCNsA" " /* (1) source */
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UL_SCNsA" " /* (2) target */
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UL_SCNsA" " /* (3) FS type */
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UL_SCNsA" " /* (4) options */
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"%n", /* byte count */
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+#ifdef HAVE_SCANF_MS_MODIFIER
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&src,
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&fs->target,
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&fstype,
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&optstr,
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+#else
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+ src,
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+ fs->target,
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+ fstype,
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+ optstr,
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+#endif
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&n);
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xrc = rc;
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@@ -136,6 +155,16 @@ static int mnt_parse_mountinfo_line(stru
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unsigned int maj, min;
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char *fstype = NULL, *src = NULL, *p;
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+#ifndef HAVE_SCANF_MS_MODIFIER
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+ size_t len = strlen(s) + 1;
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+ fs->root = malloc(len);
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+ fs->target = malloc(len);
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+ fs->vfs_optstr = malloc(len);
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+ fs->fs_optstr = malloc(len);
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+ fstype = malloc(len);
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+ src = malloc(len);
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+#endif
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+
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rc = sscanf(s, "%u " /* (1) id */
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"%u " /* (2) parent */
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"%u:%u " /* (3) maj:min */
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@@ -147,9 +176,15 @@ static int mnt_parse_mountinfo_line(stru
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&fs->id,
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&fs->parent,
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&maj, &min,
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+#ifdef HAVE_SCANF_MS_MODIFIER
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&fs->root,
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&fs->target,
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&fs->vfs_optstr,
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+#else
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+ fs->root,
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+ fs->target,
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+ fs->vfs_optstr,
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+#endif
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&end);
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if (rc >= 7 && end > 0)
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@@ -167,9 +202,15 @@ static int mnt_parse_mountinfo_line(stru
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UL_SCNsA" " /* (9) source */
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UL_SCNsA, /* (10) fs options (fs specific) */
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+#ifdef HAVE_SCANF_MS_MODIFIER
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&fstype,
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&src,
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&fs->fs_optstr);
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+#else
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+ fstype,
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+ src,
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+ fs->fs_optstr);
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+#endif
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if (rc >= 10) {
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fs->flags |= MNT_FS_KERNEL;
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