From 8bafe70a68d7a2ad92723a63a8dec3d08393ffe0 Mon Sep 17 00:00:00 2001
From: elvis <elvilio98@gmail.com>
Date: Wed, 20 Apr 2022 23:33:40 +0200
Subject: [PATCH] Logic for -l, -u and -c

---
 src/client.c | 139 +++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 136 insertions(+), 3 deletions(-)

diff --git a/src/client.c b/src/client.c
index 85ed4af..05fdf67 100644
--- a/src/client.c
+++ b/src/client.c
@@ -574,11 +574,11 @@ int cmd_W(char *filelist, char *Dir, int print) {
 	fflush(stdout);
     }
 
-    while ((token = strsep(&string, ",")) != NULL) {
+    while ((token = strsep_gnu(&string, ",")) != NULL) {
 	int ok = 1;
 	int opened = 0;
 	if (print == 1) {
-	    printf("%s\n", token);
+	    printf("%s [", token);
 	    fflush(stdout);
 	}
 
@@ -609,7 +609,7 @@ int cmd_W(char *filelist, char *Dir, int print) {
 		perror("-w");
 	    }
 
-	    printf("\n");
+	    printf("]\n");
 	    fflush(stdout);
 	}
     }
@@ -627,13 +627,146 @@ int cmd_R(char *numStr, char *dir, int print) {
 }
 
 int cmd_l(char *filelist, int print) {
+    if (!filelist) {
+	errno = EINVAL;
+	return -1;
+    }
+
+    // we copy filelist because we are nice
+    char *tofree = malloc(strnlen(filelist, MAXARGLENGTH)+1);
+    if(!tofree) {
+	perror("malloc");
+	return -1;
+    }
+    strncpy(tofree, filelist, strnlen(filelist, MAXARGLENGTH));
+
+    char *token;
+    char *string = tofree;
+
+    if (print) {
+	printf("l - Acquisisco la mutua esclusione sui seguenti file:\n");
+	fflush(stdout);
+    }
+
+    while ((token = strsep_gnu(&string, ",")) != NULL) {
+	if (print != 0) {
+	    printf("%s [Esito: ", token);
+	    fflush(stdout);
+	}
+
+	if (lockFile(token) == -1) {
+	    if (print != 0) {
+		printf("errore");
+		perror("-l");
+	    }
+	} else if(print != 0) {
+	    printf("ok");
+	}
+
+	if (print != 0) {
+	    printf("]\n");
+	    fflush(stdout);
+	}
+    }
+    free(tofree);
     return 0;
 }
 
 int cmd_u(char *filelist, int print) {
+    if (!filelist) {
+	errno = EINVAL;
+	return -1;
+    }
+
+    // we copy filelist because we are nice
+    char *tofree = malloc(strnlen(filelist, MAXARGLENGTH)+1);
+    if(!tofree) {
+	perror("malloc");
+	return -1;
+    }
+    strncpy(tofree, filelist, strnlen(filelist, MAXARGLENGTH));
+
+    char *token;
+    char *string = tofree;
+
+    if (print) {
+	printf("u - Rilascio la mutua esclusione sui seguenti file:\n");
+	fflush(stdout);
+    }
+
+    while ((token = strsep_gnu(&string, ",")) != NULL) {
+	if (print != 0) {
+	    printf("%s [Esito: ", token);
+	    fflush(stdout);
+	}
+
+	if (unlockFile(token) == -1) {
+	    if (print != 0) {
+		printf("errore");
+		perror("-u");
+	    }
+	} else if(print != 0) {
+	    printf("ok");
+	}
+
+	if (print != 0) {
+	    printf("]\n");
+	    fflush(stdout);
+	}
+    }
+    free(tofree);
     return 0;
 }
 
 int cmd_c(char *filelist, int print) {
+    if (!filelist) {
+	errno = EINVAL;
+	return -1;
+    }
+
+    // we copy filelist because we are nice
+    char *tofree = malloc(strnlen(filelist, MAXARGLENGTH)+1);
+    if(!tofree) {
+	perror("malloc");
+	return -1;
+    }
+    strncpy(tofree, filelist, strnlen(filelist, MAXARGLENGTH));
+
+    char *token;
+    char *string = tofree;
+
+    if (print) {
+	printf("c - Cancello i seguenti file dal server:\n");
+	fflush(stdout);
+    }
+
+    while ((token = strsep_gnu(&string, ",")) != NULL) {
+	if (print != 0) {
+	    printf("%s [Esito: ", token);
+	    fflush(stdout);
+	}
+
+	if (lockFile(token) == -1) {
+	    if (print) {
+		printf("errore");
+		perror("-c");
+	    }
+	} else {
+	    if (removeFile(token) == -1) {
+		if (print) {
+		    printf("errore");
+		    perror("-c");
+		}
+	    } else if (print) {
+		printf("ok");
+	    }
+	}
+
+	if (print != 0) {
+	    printf("]\n");
+	    fflush(stdout);
+	}
+    }
+    free(tofree);
     return 0;
 }