diff options
Diffstat (limited to 'scripts/basic/docproc.c')
| -rw-r--r-- | scripts/basic/docproc.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/scripts/basic/docproc.c b/scripts/basic/docproc.c index dc7a0fcd2..ef5181226 100644 --- a/scripts/basic/docproc.c +++ b/scripts/basic/docproc.c @@ -79,7 +79,9 @@ void exec_kernel_doc(char **svec) { pid_t pid; int ret; - char real_filename[PATH_MAX + 1]; + char *real_filename; + int rflen; + /* Make sure output generated so far are flushed */ fflush(stdout); switch(pid=fork()) { @@ -87,10 +89,11 @@ void exec_kernel_doc(char **svec) perror("fork"); exit(1); case 0: - memset(real_filename, 0, sizeof(real_filename)); - strncat(real_filename, getenv("SRCTREE"), PATH_MAX); - strncat(real_filename, KERNELDOCPATH KERNELDOC, - PATH_MAX - strlen(real_filename)); + rflen = strlen(getenv("SRCTREE")); + rflen += strlen(KERNELDOCPATH KERNELDOC); + real_filename = alloca(rflen + 1); + strcpy(real_filename, getenv("SRCTREE")); + strcat(real_filename, KERNELDOCPATH KERNELDOC); execvp(real_filename, svec); fprintf(stderr, "exec "); perror(real_filename); @@ -166,11 +169,10 @@ void find_export_symbols(char * filename) struct symfile *sym; char line[MAXLINESZ]; 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, filename, - PATH_MAX - strlen(real_filename)); + int rflen = strlen(getenv("SRCTREE")) + strlen(filename); + char *real_filename = alloca(rflen + 1); + strcpy(real_filename, getenv("SRCTREE")); + strcat(real_filename, filename); sym = add_new_file(filename); fp = fopen(real_filename, "r"); if (fp == NULL) |