From: Rob Landley <[email protected]>
Prevent docproc from segfaulting when SRCTREE isn't set.
Signed-off-by: Rob Landley <[email protected]>
---
scripts/basic/docproc.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff -r a26a53ed1101 scripts/basic/docproc.c
--- a/scripts/basic/docproc.c Sun Oct 07 16:42:22 2007 -0700
+++ b/scripts/basic/docproc.c Tue Oct 09 01:08:54 2007 -0500
@@ -64,12 +64,15 @@ FILELINE * entity_system;
#define FUNCTION "-function"
#define NOFUNCTION "-nofunction"
+char *srctree;
+
void usage (void)
{
fprintf(stderr, "Usage: docproc {doc|depend} file\n");
fprintf(stderr, "Input is read from file.tmpl. Output is sent to stdout\n");
fprintf(stderr, "doc: frontend when generating kernel documentation\n");
fprintf(stderr, "depend: generate list of files referenced within file\n");
+ fprintf(stderr, "Environment variable SRCTREE: absolute path to kernel source tree.\n");
}
/*
@@ -88,7 +91,7 @@ void exec_kernel_doc(char **svec)
exit(1);
case 0:
memset(real_filename, 0, sizeof(real_filename));
- strncat(real_filename, getenv("SRCTREE"), PATH_MAX);
+ strncat(real_filename, srctree, PATH_MAX);
strncat(real_filename, KERNELDOCPATH KERNELDOC,
PATH_MAX - strlen(real_filename));
execvp(real_filename, svec);
@@ -168,7 +171,7 @@ void find_export_symbols(char * filename
if (filename_exist(filename) == NULL) {
char real_filename[PATH_MAX + 1];
memset(real_filename, 0, sizeof(real_filename));
- strncat(real_filename, getenv("SRCTREE"), PATH_MAX);
+ strncat(real_filename, srctree, PATH_MAX);
strncat(real_filename, filename,
PATH_MAX - strlen(real_filename));
sym = add_new_file(filename);
@@ -335,6 +338,9 @@ int main(int argc, char *argv[])
int main(int argc, char *argv[])
{
FILE * infile;
+
+ srctree = getenv("SRCTREE");
+ if (!srctree) srctree = getcwd(NULL,0);
if (argc != 3) {
usage();
exit(1);
--
"One of my most productive days was throwing away 1000 lines of code."
- Ken Thompson.
-
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