int main(int argc,const char *argv[]) {
char *oldp,*newp;
int res = ca_parse(argc,argv,CA_NO_FREE,"=s =s",&oldp,&newp);
if(res < 0) {
printe("Invalid arguments: %s",ca_error(res));
usage(argv[0]);
}
if(ca_hasHelp())
usage(argv[0]);
if(link(oldp,newp) < 0)
error("Unable to create the link '%s' to '%s'",newp,oldp);
return EXIT_SUCCESS;
}
int main(int argc,const char *argv[]) {
int rec = false;
const char **args;
int res = ca_parse(argc,argv,0,"r",&rec,&rec);
if(res < 0) {
printe("Invalid arguments: %s",ca_error(res));
usage(argv[0]);
}
if(ca_hasHelp() || ca_getFreeCount() == 0)
usage(argv[0]);
args = ca_getFree();
while(*args) {
removeRec(*args,rec);
args++;
}
return EXIT_SUCCESS;
}
int main(int argc,const char *argv[]) {
const char **args;
int res = ca_parse(argc,argv,0,"");
if(res < 0) {
printe("Invalid arguments: %s",ca_error(res));
usage(argv[0]);
}
if(ca_hasHelp())
usage(argv[0]);
args = ca_getFree();
while(*args) {
if(mkdir(*args) < 0)
printe("Unable to create directory '%s'",*args);
args++;
}
return EXIT_SUCCESS;
}
int main(int argc,const char *argv[]) {
const char **args;
FILE *in = stdin;
int c,line,n = 5;
/* parse args */
int res = ca_parse(argc,argv,CA_MAX1_FREE,"n=d",&n);
if(res < 0) {
printe("Invalid arguments: %s",ca_error(res));
usage(argv[0]);
}
if(ca_hasHelp())
usage(argv[0]);
/* open file, if any */
args = ca_getFree();
if(args[0]) {
in = fopen(args[0],"r");
if(!in)
error("Unable to open '%s'",args[0]);
}
/* read the first n lines*/
line = 0;
while(!ferror(stdout) && line < n && (c = fgetc(in)) != EOF) {
putchar(c);
if(c == '\n')
line++;
}
if(ferror(in))
error("Read failed");
if(ferror(stdout))
error("Write failed");
/* clean up */
if(args[0])
fclose(in);
return EXIT_SUCCESS;
}
int main(int argc,const char **argv) {
int first = 1,last = -1;
char *fields = NULL;
char *delim = (char*)"\t";
const char **args;
int res = ca_parse(argc,argv,0,"f=s* d=s",&fields,&delim);
if(res < 0) {
printe("Invalid arguments: %s",ca_error(res));
usage(argv[0]);
}
if(ca_hasHelp())
usage(argv[0]);
parseFields(fields,&first,&last);
args = ca_getFree();
if(args[0] == NULL)
handleFile(stdin,delim,first,last);
else {
FILE *f;
while(*args) {
if(isdir(*args)) {
printe("'%s' is a directory!",*args);
continue;
}
f = fopen(*args,"r");
if(!f) {
printe("Unable to open '%s'",*args);
continue;
}
handleFile(f,delim,first,last);
fclose(f);
args++;
}
}
return EXIT_SUCCESS;
}
int main(int argc,const char *argv[]) {
char c;
const char **args;
size_t i,argCount;
size_t freeArgs;
FILE *file = stdin;
const char *filename = NULL;
/* parse args */
int res = ca_parse(argc,argv,0,"a=s",&filename);
if(res < 0) {
printe("Invalid arguments: %s",ca_error(res));
usage(argv[0]);
}
if(ca_hasHelp())
usage(argv[0]);
/* open file? */
if(filename != NULL) {
file = fopen(filename,"r");
if(file == NULL)
error("Unable to open file '%s'",filename);
}
/* read arguments */
argCount = 0;
while((c = fgetc(file)) != EOF) {
if(isspace(c)) {
appendArg();
argCount++;
argPos = 0;
}
else {
if(argPos < MAX_ARG_LEN)
argBuf[argPos++] = c;
else
error("Argument too long");
}
}
if(ferror(file))
error("Read failed");
if(filename != NULL)
fclose(file);
/* append last one */
if(argPos > 0) {
appendArg();
argCount++;
}
/* build args-array and copy arguments into it */
freeArgs = ca_getFreeCount();
if(freeArgs == 0)
freeArgs = 1;
args = (const char**)malloc(sizeof(char*) * (argCount + freeArgs + 1));
if(!args)
error("Not enough mem");
i = 0;
if(ca_getFreeCount() == 0)
args[i++] = "echo";
else {
for(i = 0; i < freeArgs; i++)
args[i] = ca_getFree()[i];
}
for(; first != NULL; i++) {
args[i] = first->arg;
first = first->next;
}
args[i] = NULL;
/* exchange us with requested command */
execvp(args[0],args);
return EXIT_SUCCESS;
}
int main(int argc,const char *argv[]) {
size_t bs = 4096;
size_t count = 0;
ullong total = 0;
char *inFile = NULL;
char *outFile = NULL;
FILE *in = stdin;
FILE *out = stdout;
int res = ca_parse(argc,argv,CA_NO_DASHES | CA_NO_FREE | CA_REQ_EQ,
"if=s of=s bs=k count=k",&inFile,&outFile,&bs,&count);
if(res < 0) {
printe("Invalid arguments: %s",ca_error(res));
usage(argv[0]);
}
if(ca_hasHelp())
usage(argv[0]);
if(signal(SIGINT,interrupted) == SIG_ERR)
error("Unable to set sig-handler for SIGINT");
if(inFile) {
in = fopen(inFile,"r");
if(in == NULL)
error("Unable to open '%s'",inFile);
}
if(outFile) {
out = fopen(outFile,"w");
if(out == NULL)
error("Unable to open '%s'",outFile);
}
uint64_t start = rdtsc(), end;
{
ulong shname;
uchar *shmem;
if(sharebuf(fileno(in),bs,(void**)&shmem,&shname,0) < 0) {
if(shmem == NULL)
error("Unable to mmap buffer");
}
size_t result;
ullong limit = (ullong)count * bs;
while(run && (!count || total < limit)) {
if((result = fread(shmem,1,bs,in)) == 0)
break;
if(fwrite(shmem,1,bs,out) == 0)
break;
total += result;
}
if(ferror(in))
error("Read failed");
if(ferror(out))
error("Write failed");
destroybuf(shmem,shname);
}
end = rdtsc();
uint64_t usecs = tsctotime(end - start);
printf("%zu records in\n",count);
printf("%zu records out\n",count);
printf("%Lu bytes (%.1lf MB) copied, %.1lf s, %.1lf MB/s\n",
total,total / 1000000.0,usecs / 1000000.0,total / (double)usecs);
if(inFile)
fclose(in);
if(outFile)
fclose(out);
return EXIT_SUCCESS;
}
int main(int argc,const char *argv[]) {
FILE *in = stdin;
uint base = 16;
char format = OUT_FORMAT_HEX;
int i,count = -1;
const char **args;
int res = ca_parse(argc,argv,CA_MAX1_FREE,"n=d f=c",&count,&format);
if(res < 0) {
printe("Invalid arguments: %s",ca_error(res));
usage(argv[0]);
}
if(ca_hasHelp())
usage(argv[0]);
/* TODO perhaps cmdargs should provide a possibility to restrict the values of an option */
/* like 'arg=[ohd]' */
if(format != OUT_FORMAT_DEC && format != OUT_FORMAT_HEX &&
format != OUT_FORMAT_OCT)
usage(argv[0]);
switch(format) {
case OUT_FORMAT_DEC:
base = 10;
break;
case OUT_FORMAT_HEX:
base = 16;
break;
case OUT_FORMAT_OCT:
base = 8;
break;
}
args = ca_getFree();
if(args[0]) {
in = fopen(args[0],"r");
if(!in)
error("Unable to open '%s'",args[0]);
}
ulong shname;
uchar *shmem;
if(sharebuf(fileno(in),BUF_SIZE,(void**)&shmem,&shname,0) < 0) {
if(shmem == NULL)
error("Unable to mmap buffer");
}
i = 0;
while(!ferror(stdout) && (count < 0 || count > 0)) {
size_t x,c;
c = count >= 0 ? MIN(count,BUF_SIZE) : BUF_SIZE;
c = fread(shmem,sizeof(char),c,in);
if(c == 0)
break;
for(x = 0; x < c; x++, i++) {
if(i % base == 0) {
if(i > 0)
printAscii(base,i);
printf("%08x: ",i);
}
if(isprint(shmem[x]) && shmem[x] < 0x80 && !isspace(shmem[x]))
ascii[i % base] = shmem[x];
else
ascii[i % base] = NPRINT_CHAR;
switch(format) {
case OUT_FORMAT_DEC:
printf("%03d ",shmem[x]);
break;
case OUT_FORMAT_HEX:
printf("%02x ",shmem[x]);
break;
case OUT_FORMAT_OCT:
printf("%03o ",shmem[x]);
break;
}
}
if(count >= 0)
count -= c;
}
if(ferror(in))
error("Read failed");
if(ferror(stdout))
error("Write failed");
printAscii(base,i);
destroybuf(shmem,shname);
if(args[0])
fclose(in);
return EXIT_SUCCESS;
}
int main(int argc,const char *argv[]) {
size_t bs = 4096;
size_t count = 0;
ullong total = 0;
char *inFile = NULL;
char *outFile = NULL;
int infd = STDIN_FILENO;
int outfd = STDOUT_FILENO;
int res = ca_parse(argc,argv,CA_NO_DASHES | CA_NO_FREE | CA_REQ_EQ,
"if=s of=s bs=k count=k",&inFile,&outFile,&bs,&count);
if(res < 0) {
printe("Invalid arguments: %s",ca_error(res));
usage(argv[0]);
}
if(ca_hasHelp())
usage(argv[0]);
if(signal(SIGINT,interrupted) == SIG_ERR)
error("Unable to set sig-handler for SIGINT");
if(inFile) {
infd = open(inFile,O_RDONLY);
if(infd < 0)
error("Unable to open '%s'",inFile);
}
if(outFile) {
outfd = open(outFile,O_WRONLY);
if(outfd < 0)
error("Unable to open '%s'",outFile);
}
uint64_t start = rdtsc(), end;
{
int shmfd;
uchar *shmem;
if((shmfd = sharebuf(infd,bs,(void**)&shmem,0)) < 0) {
if(shmem == NULL)
error("Unable to mmap buffer");
}
if(shmem) {
if(delegate(outfd,shmfd,O_RDONLY,DEL_ARG_SHFILE) < 0) {}
}
ssize_t result;
ullong limit = (ullong)count * bs;
while(run && (!count || total < limit)) {
if((result = read(infd,shmem,bs)) <= 0) {
if(result < 0)
error("Read failed");
break;
}
if(write(outfd,shmem,result) < 0)
error("Write failed");
total += result;
}
destroybuf(shmem,shmfd);
}
end = rdtsc();
uint64_t usecs = tsctotime(end - start);
printf("%zu records in\n",count);
printf("%zu records out\n",count);
printf("%Lu bytes (%.1lf MB) copied, %.1lf s, %.1lf MB/s\n",
total,total / 1000000.0,usecs / 1000000.0,total / (double)usecs);
if(inFile)
close(infd);
if(outFile)
close(outfd);
return EXIT_SUCCESS;
}