karchnu/some-usable-scripts
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

paintest can now run a child process

Browse Source
This commit is contained in:
Philippe Pittoli 2024-12-22 00:46:13 +01:00
parent 424078c615
commit ec03af7e3b
1 changed files with 33 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
c/paintest.c
View File

@ -5,6 +5,8 @@
#include <netdb.h> #include <netdb.h>
#include <sys/wait.h>
#include <string.h> #include <string.h>
#include <sys/socket.h> #include <sys/socket.h>
#include <sys/types.h> #include <sys/types.h>
@ -281,6 +283,35 @@ void network_server(char *port) {
} }
} }
void execute(char *filename) {
printf("execute: %s\n", filename);
pid_t cpuid = 0;
cpuid = fork();
if (cpuid == -1) {
fprintf(stderr, "fork failed\n");
return;
}
if (cpuid == 0) {
printf("I'm the child\n");
int ret = execl(filename, "hello", NULL);
if (ret == -1) {
printf("failed to exec %s\n", filename);
exit(EXIT_FAILURE);
}
printf("wait, what? probably failed to exec %s\n", filename);
exit(EXIT_FAILURE);
}
else {
printf("I'm the parent\n");
int status;
wait(&status);
printf("child exited with %d\n", status);
}
}
void usage(void) { void usage(void) {
printf("usage: paintest r /path/to/file w /path/to/file n example.com:8080 u /unix/socket/path\n"); printf("usage: paintest r /path/to/file w /path/to/file n example.com:8080 u /unix/socket/path\n");
} }
@ -293,13 +324,14 @@ int main(int argc, char **argv)
exit (EXIT_SUCCESS); exit (EXIT_SUCCESS);
} }
while (i != argc) { while (i < argc) {
if (memcmp(argv[i], "r", 1) == 0) { read_file(argv[i+1]); } if (memcmp(argv[i], "r", 1) == 0) { read_file(argv[i+1]); }
else if (memcmp(argv[i], "w", 1) == 0) { write_file(argv[i+1]); } else if (memcmp(argv[i], "w", 1) == 0) { write_file(argv[i+1]); }
else if (memcmp(argv[i], "n", 1) == 0) { network_client(argv[i+1], argv[i+2]); i++; } else if (memcmp(argv[i], "n", 1) == 0) { network_client(argv[i+1], argv[i+2]); i++; }
else if (memcmp(argv[i], "N", 1) == 0) { network_server(argv[i+1]); } else if (memcmp(argv[i], "N", 1) == 0) { network_server(argv[i+1]); }
else if (memcmp(argv[i], "u", 1) == 0) { unixsock_client(argv[i+1]); } else if (memcmp(argv[i], "u", 1) == 0) { unixsock_client(argv[i+1]); }
else if (memcmp(argv[i], "U", 1) == 0) { unixsock_server(argv[i+1]); } else if (memcmp(argv[i], "U", 1) == 0) { unixsock_server(argv[i+1]); }
else if (memcmp(argv[i], "x", 1) == 0) { execute(argv[i+1]); }
else if (memcmp(argv[i], "h", 1) == 0) { usage(); } else if (memcmp(argv[i], "h", 1) == 0) { usage(); }
i += 2; i += 2;
} }