?? getinput.c
字號(hào):
#include <stdlib.h>#include <stdio.h>#include <sys/types.h>#include <errno.h>int main (int argc, char *argv[], char *envp[]) { FILE *output; int clen; size_t read, write; off_t offset; char *querystring, *e; if ((e = getenv("CONTENT_LENGTH")) == NULL) { fprintf(stderr, "Unable to get content length."); return -1; } clen = strtol(e, NULL, 10); /* Content Length was out of range */ if (errno == ERANGE) { fprintf(stderr, "Unable to convert Content-Length to integer.\n"); return -1; } read = 0; offset = 0; querystring = (char *) malloc(clen+1); memset(querystring, 0, clen + 1); /* Read in the query from STDIN */ do { read = fread(querystring + offset, sizeof(char), clen - offset, stdin); if (ferror(stdin)) return -1; else if (read <= 0) continue; offset += read; } while (offset < clen && read > 0); if ((output = fopen("./output", "w")) == NULL) fprintf(stderr, "Unable to open output!"); write = fwrite(querystring, sizeof(char), clen, output); fclose(output); fprintf(stdout, "Content-Type: text/plain\r\n\r\nDone.\n"); return 0;}
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