#include <netinet/in.h>
+#ifdef __sun__
+#include <inttypes.h>
+#else
#include <stdint.h>
+#endif
#include <ctype.h>
#include <errno.h>
#include <string.h>
#include "modpost.h"
-/* Parse tag=value strings from .modinfo section */
-static char *next_string(char *string, unsigned long *secsize)
-{
- /* Skip non-zero chars */
- while (string[0]) {
- string++;
- if ((*secsize)-- <= 1)
- return NULL;
- }
-
- /* Skip any zero padding. */
- while (!string[0]) {
- string++;
- if ((*secsize)-- <= 1)
- return NULL;
- }
- return string;
-}
-
-static char *get_modinfo(void *modinfo, unsigned long modinfo_len,
- const char *tag)
-{
- char *p;
- unsigned int taglen = strlen(tag);
- unsigned long size = modinfo_len;
-
- for (p = modinfo; p; p = next_string(p, &size)) {
- if (strncmp(p, tag, taglen) == 0 && p[taglen] == '=')
- return p + taglen + 1;
- }
- return NULL;
-}
-
/*
* Stolen form Cryptographic API.
*
file = grab_file(cmd, &flen);
if (!file) {
- fprintf(stderr, "Warning: could not find %s for %s\n",
- cmd, objfile);
+ warn("could not find %s for %s\n", cmd, objfile);
goto out;
}
/* Check if this file is in same dir as objfile */
if ((strstr(line, dir)+strlen(dir)-1) == strrchr(line, '/')) {
if (!parse_file(line, md)) {
- fprintf(stderr,
- "Warning: could not open %s: %s\n",
- line, strerror(errno));
+ warn("could not open %s: %s\n",
+ line, strerror(errno));
goto out_file;
}
return ret;
}
-static int get_version(const char *modname, char sum[])
+/* Calc and record src checksum. */
+void get_src_version(const char *modname, char sum[], unsigned sumlen)
{
void *file;
unsigned long len;
- int ret = 0;
struct md4_ctx md;
char *sources, *end, *fname;
const char *basename;
- char filelist[sizeof(".tmp_versions/%s.mod") + strlen(modname)];
+ char filelist[PATH_MAX + 1];
+ char *modverdir = getenv("MODVERDIR");
+
+ if (!modverdir)
+ modverdir = ".";
/* Source files for module are in .tmp_versions/modname.mod,
after the first line. */
basename = strrchr(modname, '/') + 1;
else
basename = modname;
- sprintf(filelist, ".tmp_versions/%s", basename);
- /* Truncate .o, add .mod */
- strcpy(filelist + strlen(filelist)-2, ".mod");
+ sprintf(filelist, "%s/%.*s.mod", modverdir,
+ (int) strlen(basename) - 2, basename);
file = grab_file(filelist, &len);
if (!file) {
- fprintf(stderr, "Warning: could not find versions for %s\n",
- filelist);
- return 0;
+ warn("could not find versions for %s\n", filelist);
+ return;
}
sources = strchr(file, '\n');
if (!sources) {
- fprintf(stderr, "Warning: malformed versions file for %s\n",
- modname);
+ warn("malformed versions file for %s\n", modname);
goto release;
}
sources++;
end = strchr(sources, '\n');
if (!end) {
- fprintf(stderr, "Warning: bad ending versions file for %s\n",
- modname);
+ warn("bad ending versions file for %s\n", modname);
goto release;
}
*end = '\0';
md4_init(&md);
- for (fname = strtok(sources, " "); fname; fname = strtok(NULL, " ")) {
+ while ((fname = strsep(&sources, " ")) != NULL) {
+ if (!*fname)
+ continue;
if (!parse_source_files(fname, &md))
goto release;
}
- /* sum is of form \0<padding>. */
- md4_final_ascii(&md, sum, 1 + strlen(sum+1));
- ret = 1;
+ md4_final_ascii(&md, sum, sumlen);
release:
release_file(file, len);
- return ret;
}
static void write_version(const char *filename, const char *sum,
fd = open(filename, O_RDWR);
if (fd < 0) {
- fprintf(stderr, "Warning: changing sum in %s failed: %s\n",
+ warn("changing sum in %s failed: %s\n",
filename, strerror(errno));
return;
}
if (lseek(fd, offset, SEEK_SET) == (off_t)-1) {
- fprintf(stderr, "Warning: changing sum in %s:%lu failed: %s\n",
+ warn("changing sum in %s:%lu failed: %s\n",
filename, offset, strerror(errno));
goto out;
}
if (write(fd, sum, strlen(sum)+1) != strlen(sum)+1) {
- fprintf(stderr, "Warning: writing sum in %s failed: %s\n",
+ warn("writing sum in %s failed: %s\n",
filename, strerror(errno));
goto out;
}
close(fd);
}
-void strip_rcs_crap(char *version)
+static int strip_rcs_crap(char *version)
{
unsigned int len, full_len;
if (strncmp(version, "$Revision", strlen("$Revision")) != 0)
- return;
+ return 0;
/* Space for version string follows. */
full_len = strlen(version) + strlen(version + strlen(version) + 1) + 2;
len++;
memmove(version + len, version + strlen(version),
full_len - strlen(version));
+ return 1;
}
-/* If the modinfo contains a "version" value, then set this. */
-void maybe_frob_version(const char *modfilename,
- void *modinfo,
- unsigned long modinfo_len,
- unsigned long modinfo_offset)
+/* Clean up RCS-style version numbers. */
+void maybe_frob_rcs_version(const char *modfilename,
+ char *version,
+ void *modinfo,
+ unsigned long version_offset)
{
- char *version, *csum;
-
- version = get_modinfo(modinfo, modinfo_len, "version");
- if (!version)
- return;
-
- /* RCS $Revision gets stripped out. */
- strip_rcs_crap(version);
-
- /* Check against double sumversion */
- if (strchr(version, ' '))
- return;
-
- /* Version contains embedded NUL: second half has space for checksum */
- csum = version + strlen(version);
- *(csum++) = ' ';
- if (get_version(modfilename, csum))
- write_version(modfilename, version,
- modinfo_offset + (version - (char *)modinfo));
+ if (strip_rcs_crap(version))
+ write_version(modfilename, version, version_offset);
}
git://git.onelab.eu / linux-2.6.git / blobdiff