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#include "config.h"
#if HAVE_STRING_H
# include <string.h>
#endif
#include <stdlib.h>
#include <ctype.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/wait.h>
#include <errno.h>
#include <sys/types.h>
#include "misc.h"
#include "spec.h"
#include "rpmlib.h"
#include "header.h"
#include "popt/popt.h"
void addOrAppendListEntry(Header h, int_32 tag, char *line)
{
int argc;
char **argv;
poptParseArgvString(line, &argc, &argv);
if (argc) {
headerAddOrAppendEntry(h, tag, RPM_STRING_ARRAY_TYPE, argv, argc);
}
FREE(argv);
}
/* Parse a simple part line that only take -n <pkg> or <pkg> */
/* <pkg> is return in name as a pointer into a static buffer */
int parseSimplePart(char *line, char **name, int *flag)
{
char *tok;
char linebuf[BUFSIZ];
static char buf[BUFSIZ];
strcpy(linebuf, line);
/* Throw away the first token (the %xxxx) */
strtok(linebuf, " \t\n");
if (!(tok = strtok(NULL, " \t\n"))) {
*name = NULL;
return 0;
}
if (!strcmp(tok, "-n")) {
if (!(tok = strtok(NULL, " \t\n"))) {
return 1;
}
*flag = PART_NAME;
} else {
*flag = PART_SUBNAME;
}
strcpy(buf, tok);
*name = buf;
return (strtok(NULL, " \t\n")) ? 1 : 0;
}
int parseYesNo(char *s)
{
if (!s || (s[0] == 'n' || s[0] == 'N') ||
!strcasecmp(s, "false") ||
!strcasecmp(s, "off") ||
!strcmp(s, "0")) {
return 0;
}
return 1;
}
char *findLastChar(char *s)
{
char *res = s;
while (*s) {
if (! isspace(*s)) {
res = s;
}
s++;
}
return res;
}
int parseNum(char *line, int *res)
{
char *s1;
s1 = NULL;
*res = strtoul(line, &s1, 10);
if ((*s1) || (s1 == line) || (*res == ULONG_MAX)) {
return 1;
}
return 0;
}
StringBuf getOutputFrom(char *dir, char *argv[],
char *writePtr, int writeBytesLeft,
int failNonZero)
{
int progPID;
int progDead;
int toProg[2];
int fromProg[2];
int status;
void *oldhandler;
int bytesWritten;
StringBuf readBuff;
int bytes;
unsigned char buf[8193];
oldhandler = signal(SIGPIPE, SIG_IGN);
pipe(toProg);
pipe(fromProg);
if (!(progPID = fork())) {
close(toProg[1]);
close(fromProg[0]);
dup2(toProg[0], 0); /* Make stdin the in pipe */
dup2(fromProg[1], 1); /* Make stdout the out pipe */
close(toProg[0]);
close(fromProg[1]);
if (dir) {
chdir(dir);
}
execvp(argv[0], argv);
rpmError(RPMERR_EXEC, "Couldn't exec %s", argv[0]);
_exit(RPMERR_EXEC);
}
if (progPID < 0) {
rpmError(RPMERR_FORK, "Couldn't fork %s", argv[0]);
return NULL;
}
close(toProg[0]);
close(fromProg[1]);
/* Do not block reading or writing from/to prog. */
fcntl(fromProg[0], F_SETFL, O_NONBLOCK);
fcntl(toProg[1], F_SETFL, O_NONBLOCK);
readBuff = newStringBuf();
progDead = 0;
do {
if (waitpid(progPID, &status, WNOHANG)) {
progDead = 1;
}
/* Write some stuff to the process if possible */
if (writeBytesLeft) {
if ((bytesWritten =
write(toProg[1], writePtr,
(1024<writeBytesLeft) ? 1024 : writeBytesLeft)) < 0) {
if (errno != EAGAIN) {
perror("getOutputFrom()");
exit(1);
}
bytesWritten = 0;
}
writeBytesLeft -= bytesWritten;
writePtr += bytesWritten;
} else {
close(toProg[1]);
}
/* Read any data from prog */
bytes = read(fromProg[0], buf, sizeof(buf)-1);
while (bytes > 0) {
buf[bytes] = '\0';
appendStringBuf(readBuff, buf);
bytes = read(fromProg[0], buf, sizeof(buf)-1);
}
/* terminate when prog dies */
} while (!progDead);
close(toProg[1]);
close(fromProg[0]);
signal(SIGPIPE, oldhandler);
if (writeBytesLeft) {
rpmError(RPMERR_EXEC, "failed to write all data to %s", argv[0]);
return NULL;
}
waitpid(progPID, &status, 0);
if (failNonZero && (!WIFEXITED(status) || WEXITSTATUS(status))) {
rpmError(RPMERR_EXEC, "%s failed", argv[0]);
return NULL;
}
return readBuff;
}
char *cleanFileName(char *name)
{
static char res[BUFSIZ];
char *copyTo, *copyFrom, copied;
/* Copy to fileName, eliminate duplicate "/" and trailing "/" */
copyTo = res;
copied = '\0';
copyFrom = name;
while (*copyFrom) {
if (*copyFrom != '/' || copied != '/') {
*copyTo++ = copied = *copyFrom;
}
copyFrom++;
}
*copyTo = '\0';
copyTo--;
if ((copyTo != res) && (*copyTo == '/')) {
*copyTo = '\0';
}
return res;
}
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