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From 98602229796f8b1572d564449764b55d1fea35bc Mon Sep 17 00:00:00 2001 From: Robert James Kaes Date: Sat, 15 Sep 2001 21:29:59 +0000 Subject: Added the send_http_message() function to handle sending messages back to the client. It's used by httperr() and showstats(). --- src/utils.c | 75 ++++++++++++++++++++++++++++++++++--------------------------- src/utils.h | 6 ++++- 2 files changed, 47 insertions(+), 34 deletions(-) diff --git a/src/utils.c b/src/utils.c index d9361d6..8786702 100644 --- a/src/utils.c +++ b/src/utils.c @@ -1,4 +1,4 @@ -/* $Id: utils.c,v 1.11 2001-09-11 19:27:27 rjkaes Exp $ +/* $Id: utils.c,v 1.12 2001-09-15 21:29:59 rjkaes Exp $ * * Misc. routines which are used by the various functions to handle strings * and memory allocation and pretty much anything else we can think of. Also, @@ -65,11 +65,12 @@ void debugging_free(void *ptr, const char *file, unsigned long line) #endif +#define HEADER_SIZE (1024 * 8) /* - * Display an error to the client. + * Build the data for a complete HTTP & HTML message for the client. */ -#define HEADER_SIZE (1024 * 8) -int httperr(struct conn_s *connptr, int err, const char *msg) +int send_http_message(struct conn_s* connptr, int http_code, + const char *error_title, const char *message) { static char *headers = \ "HTTP/1.0 %d %s\r\n" \ @@ -80,58 +81,66 @@ int httperr(struct conn_s *connptr, int err, const char *msg) "Connection: close\r\n" \ "\r\n"; - static char *message = \ - "%s\r\n" \ - "\r\n" \ - "Cache Error!
\r\n" \ - "An error of type %d occurred: %s\r\n" \ - "

\r\n" \ - "Generated by %s (%s)\r\n" \ - "\r\n\r\n"; - char *header_buffer; - char *message_buffer; - int output_size; char timebuf[30]; time_t global_time; + int output_size; header_buffer = safemalloc(HEADER_SIZE); - if (!header_buffer) { - log_message(LOG_ERR, "Could not allocate memory."); + if (!header_buffer) return -1; - } - - message_buffer = safemalloc(MAXBUFFSIZE); - if (!message_buffer) { - log_message(LOG_ERR, "Could not allocate memory."); - safefree(header_buffer); - return -1; - } global_time = time(NULL); strftime(timebuf, sizeof(timebuf), "%a, %d %b %Y %H:%M:%S GMT", gmtime(&global_time)); - snprintf(message_buffer, MAXBUFFSIZE - 1, message, msg, err, msg, PACKAGE, VERSION); - snprintf(header_buffer, HEADER_SIZE - 1, headers, err, msg, PACKAGE, VERSION, timebuf, strlen(message_buffer)); + snprintf(header_buffer, HEADER_SIZE - 1, headers, http_code, error_title, PACKAGE, VERSION, timebuf, strlen(message)); - output_size = strlen(message_buffer) + strlen(header_buffer); + output_size = strlen(message) + strlen(header_buffer); connptr->output_message = safemalloc(output_size + 1); if (!connptr->output_message) { - log_message(LOG_ERR, "Could not allocate memory."); safefree(header_buffer); - safefree(message_buffer); return -1; } strlcpy(connptr->output_message, header_buffer, output_size); - strlcat(connptr->output_message, message_buffer, output_size); + strlcat(connptr->output_message, message, output_size); safefree(header_buffer); - safefree(message_buffer); return 0; } +/* + * Display an error to the client. + */ +int httperr(struct conn_s *connptr, int err, const char *msg) +{ + static char *message = \ + "%s\r\n" \ + "\r\n" \ + "Cache Error!
\r\n" \ + "An error of type %d occurred: %s\r\n" \ + "

\r\n" \ + "Generated by %s (%s)\r\n" \ + "\r\n\r\n"; + + char *message_buffer; + + message_buffer = safemalloc(MAXBUFFSIZE); + if (!message_buffer) + return -1; + + snprintf(message_buffer, MAXBUFFSIZE - 1, message, msg, err, msg, PACKAGE, VERSION); + + if (send_http_message(connptr, err, msg, message_buffer) < 0) { + safefree(message_buffer); + return -1; + } + + safefree(message_buffer); + return 0; +} + void makedaemon(void) { if (fork() != 0) @@ -154,7 +163,7 @@ void makedaemon(void) /* * Safely creates filename and returns the low-level file descriptor. */ -static int create_file_safely(const char *filename) +int create_file_safely(const char *filename) { struct stat lstatinfo; int fildes; diff --git a/src/utils.h b/src/utils.h index 409def9..d0fa57e 100644 --- a/src/utils.h +++ b/src/utils.h @@ -1,4 +1,4 @@ -/* $Id: utils.h,v 1.8 2001-09-11 19:27:27 rjkaes Exp $ +/* $Id: utils.h,v 1.9 2001-09-15 21:29:59 rjkaes Exp $ * * See 'utils.h' for a detailed description. * @@ -21,11 +21,15 @@ #include "tinyproxy.h" +extern int send_http_message(struct conn_s* connptr, int http_code, + const char *error_title, const char *message); extern int httperr(struct conn_s *connptr, int err, const char *msg); extern void makedaemon(void); extern void pidfile_create(const char *path); +extern int create_file_safely(const char *filename); + #ifndef HAVE_STRLCAT extern size_t strlcat(char *dst, const char *src, size_t size); #endif /* HAVE_STRLCAT */ -- cgit v1.2.3